README.md

@@ -13,7 +13,6 @@ Features:
     - Class Diagrams (self-conforming)
     - Causal Block Diagrams language
     - Petri Net language
-    - [Repotting the Geraniums](https://ris.utwente.nl/ws/portalfiles/portal/5312315/gtvmt2009.pdf)
 
 ## Dependencies
 
@@ -27,10 +26,7 @@ Features:
 
 The following branches exist:
 
+ * `mde2425` - the branch containing a snapshot of the repo used for the MDE assignments 24-25. No breaking changes will be pushed here. After the re-exams (Sep 2025), this branch will be frozen.
+ * `master` - currently equivalent to `mde2425` (this is the branch that was cloned by the students). This branch will be deleted after Sep 2025, because the name is too vague.
  * `development` - in this branch, new development will occur, primarily cleaning up the code to prepare for next year's MDE classes.
- * `mde2425` - contains a snapshot of the repo used for the MDE assignments 24-25. This branch should remain frozen.
 
-
-## Tutorial
-
-A good place to learn how to use muMLE is the `tutorial` directory. Each file is an executable Python script that explains muMLE step-by-step (read the comments).

TODO.txt

@@ -1,46 +0,0 @@
-Things that need to be cleaned up:
-
-  - At several places in the code, it is assumed that from the root node, there is an edge labeled 'SCD' containing the self-conforming meta-meta-model. It would be better for parts of the code that need the meta-meta-model to receive this model as a (function) parameter.
-
-  - The whole 'ModelRef'-construct does not work as originally foreseen. It is currently only used for attributes of primitive types, where it unnecessarily complicates things. Better to get rid of it.
-
-
-Known bugs:
-  - Cannot parse negative numbers
-
-
-  - When merging models, the model element names must not overlap. Maybe allow some kind of prefixing of the overlapping names? Difficulty porting existing models to the merged models if the type names have changed...
-
-
-
-Merging (meta-)models is a nightmare:
-
-  - Prefixing the type names (to avoid naming collisions) is not an option:
-      (*) constraints (and transformation rules) already contain API calls that mention type names -> all of these would break
-      (*) don't want to prefix primitive types like "Integer", "String", ... because the existing code already assumes these exact names
-
-  - Not prefixing the type names leads to naming collisions, even if names are carefully chosen:
-      (*) anonymous names, e.g., Inheritance-links still result in naming collisions (requiring auto-renaming?)
-
-
-Feature requests:
-
-  - Support custom functions in 'conditions'
-
-  - When matching edge, match 'any' src/tgt
-
-  - Support 'return'-statement in conditions? (just makes syntax nicer)
-
-  - RAMification / matching: add `match_subtypes` attribute to each RAMified class.
-
-  - Separate script for running LHS (+NAC) on any model, and visualizing the match.
-
-  - Syntax highlighting:
-      most students use:
-        - VS Code
-        - PyCharm
-      i use:
-        - Sublime Text
-      nobody uses:
-        - Eclipse
-

api/cd.py

@@ -53,7 +53,7 @@ class CDAPI:
         return self.bottom.read_outgoing_elements(self.m, type_name)[0]
 
     def is_direct_subtype(self, super_type_name: str, sub_type_name: str):
-        return sub_type_name in self.direct_sub_types[super_type_name]
+        return sub_type_name in self.direct_sub_types[super_type]
 
     def is_direct_supertype(self, sub_type_name: str, super_type_name: str):
         return super_type_name in self.direct_super_types[sub_type_name]
@@ -83,6 +83,3 @@ class CDAPI:
                 result = self.find_attribute_type(supertype, attr_name)
                 if result != None:
                     return result
-
-    def get_type(self, type_name: str):
-        return next(k for k, v in self.type_model_names.items() if v == type_name)

api/od.py

@@ -6,7 +6,8 @@ from services.primitives.integer_type import Integer
 from services.primitives.string_type import String
 from services.primitives.actioncode_type import ActionCode
 from uuid import UUID
-from typing import Optional, Any
+from typing import Optional
+from util.timer import Timer
 
 NEXT_ID = 0
 
@@ -41,10 +42,10 @@ class ODAPI:
         self.create_string_value = self.od.create_string_value
         self.create_actioncode_value = self.od.create_actioncode_value
 
-        self.recompute_mappings()
+        self.__recompute_mappings()
 
     # Called after every change - makes querying faster but modifying slower
-    def recompute_mappings(self):
+    def __recompute_mappings(self):
         self.m_obj_to_name = build_name_mapping(self.state, self.m)
         self.mm_obj_to_name = build_name_mapping(self.state, self.mm)
         self.type_to_objs = { type_name : set() for type_name in self.bottom.read_keys(self.mm)}
@@ -59,33 +60,25 @@ class ODAPI:
     def get_value(self, obj: UUID):
         return od.read_primitive_value(self.bottom, obj, self.mm)[0]
 
-    def get_target(self, link: UUID) -> UUID:
+    def get_target(self, link: UUID):
         return self.bottom.read_edge_target(link)
 
-    def get_source(self, link: UUID) -> UUID:
+    def get_source(self, link: UUID):
         return self.bottom.read_edge_source(link)
 
-    def get_slot(self, obj: UUID, attr_name: str) -> UUID:
+    def get_slot(self, obj: UUID, attr_name: str):
         slot = self.od.get_slot(obj, attr_name)
         if slot == None:
             raise NoSuchSlotException(f"Object '{self.m_obj_to_name[obj]}' has no slot '{attr_name}'")
         return slot
 
-    def get_slot_link(self, obj: UUID, attr_name: str) -> UUID:
+    def get_slot_link(self, obj: UUID, attr_name: str):
         return self.od.get_slot_link(obj, attr_name)
 
     # Parameter 'include_subtypes': whether to include subtypes of the given association
-    def get_outgoing(self, obj: UUID, assoc_name: str, include_subtypes=True) -> list[UUID]:
+    def get_outgoing(self, obj: UUID, assoc_name: str, include_subtypes=True):
         outgoing = self.bottom.read_outgoing_edges(obj)
-        return self.filter_edges_by_type(outgoing, assoc_name, include_subtypes)
-
-    # Parameter 'include_subtypes': whether to include subtypes of the given association
-    def get_incoming(self, obj: UUID, assoc_name: str, include_subtypes=True):
-        incoming = self.bottom.read_incoming_edges(obj)
-        return self.filter_edges_by_type(incoming, assoc_name, include_subtypes)
-
-    def filter_edges_by_type(self, outgoing: list[UUID], assoc_name: str, include_subtypes=True) -> list[UUID]:
-        result: list[UUID] = []
+        result = []
         for o in outgoing:
             try:
                 type_of_outgoing_link = self.get_type_name(o)
@@ -96,8 +89,23 @@ class ODAPI:
                     result.append(o)
         return result
 
+
+    # Parameter 'include_subtypes': whether to include subtypes of the given association
+    def get_incoming(self, obj: UUID, assoc_name: str, include_subtypes=True):
+        incoming = self.bottom.read_incoming_edges(obj)
+        result = []
+        for i in incoming:
+            try:
+                type_of_incoming_link = self.get_type_name(i)
+            except:
+                continue # OK, not all edges are typed
+            if (include_subtypes and self.cdapi.is_subtype(super_type_name=assoc_name, sub_type_name=type_of_incoming_link)
+                or not include_subtypes and type_of_incoming_link == assoc_name):
+                    result.append(i)
+        return result
+
     # Returns list of tuples (name, obj)
-    def get_all_instances(self, type_name: str, include_subtypes=True) -> list[UUID]:
+    def get_all_instances(self, type_name: str, include_subtypes=True):
         if include_subtypes:
             all_types = self.cdapi.transitive_sub_types[type_name]
         else:
@@ -119,7 +127,7 @@ class ODAPI:
         else:
             raise Exception(f"Couldn't find name of {obj} - are you sure it exists in the (meta-)model?")
 
-    def get(self, name: str) -> UUID:
+    def get(self, name: str):
         results = self.bottom.read_outgoing_elements(self.m, name)
         if len(results) == 1:
             return results[0]
@@ -128,32 +136,30 @@ class ODAPI:
         else:
             raise Exception(f"No such element in model: '{name}'")
 
-    def get_type_name(self, obj: UUID) -> str:
+    def get_type_name(self, obj: UUID):
         return self.get_name(self.get_type(obj))
 
-    def is_instance(self, obj: UUID, type_name: str, include_subtypes=True) -> bool:
+    def is_instance(self, obj: UUID, type_name: str, include_subtypes=True):
         typ = self.cdapi.get_type(type_name)
         types = set(typ) if not include_subtypes else self.cdapi.transitive_sub_types[type_name]
         for type_of_obj in self.bottom.read_outgoing_elements(obj, "Morphism"):
-            if self.get_name(type_of_obj) in types:
+            if type_of_obj in types:
                 return True
         return False
 
-    def delete(self, obj: UUID) -> None:
+    def delete(self, obj: UUID):
         self.bottom.delete_element(obj)
-        self.recompute_mappings()
+        self.__recompute_mappings()
 
-    # Does the the object have the given attribute?
-    def has_slot(self, obj: UUID, attr_name: str) -> bool:
+    # Does the class of the object have the given attribute?
+    def has_slot(self, obj: UUID, attr_name: str):
         class_name = self.get_name(self.get_type(obj))
-        if self.od.get_attr_link_name(class_name, attr_name) is None:
-            return False
-        return self.od.get_slot_link(obj, attr_name) is not None
+        return self.od.get_attr_link_name(class_name, attr_name) != None
 
     def get_slots(self, obj: UUID) -> list[str]:
         return [attr_name for attr_name, _ in self.od.get_slots(obj)]
 
-    def get_slot_value(self, obj: UUID, attr_name: str) -> Any:
+    def get_slot_value(self, obj: UUID, attr_name: str):
         slot = self.get_slot(obj, attr_name)
         return self.get_value(slot)
 
@@ -166,14 +172,14 @@ class ODAPI:
     # Returns the given default value if the slot does not exist on the object.
     # The attribute must exist in the object's class, or an exception will be thrown.
     # The slot may not exist however, if the attribute is defined as 'optional' in the class.
-    def get_slot_value_default(self, obj: UUID, attr_name: str, default: any) -> any:
+    def get_slot_value_default(self, obj: UUID, attr_name: str, default: any):
         try:
             return self.get_slot_value(obj, attr_name)
         except NoSuchSlotException:
             return default
 
     # create or update slot value
-    def set_slot_value(self, obj: UUID, attr_name: str, new_value: any, is_code=False) -> None:
+    def set_slot_value(self, obj: UUID, attr_name: str, new_value: any, is_code=False):
         obj_name = self.get_name(obj)
 
         link_name = f"{obj_name}_{attr_name}"
@@ -188,7 +194,7 @@ class ODAPI:
         new_target = self.create_primitive_value(target_name, new_value, is_code)
         slot_type = self.cdapi.find_attribute_type(self.get_type_name(obj), attr_name)
         new_link = self.od._create_link(link_name, slot_type, obj, new_target)
-        self.recompute_mappings()
+        self.__recompute_mappings()
 
     def create_primitive_value(self, name: str, value: any, is_code=False):
         # watch out: in Python, 'bool' is subtype of 'int'
@@ -204,7 +210,7 @@ class ODAPI:
                 tgt = self.create_string_value(name, value)
         else:
             raise Exception("Unimplemented type "+value)
-        self.recompute_mappings()
+        self.__recompute_mappings()
         return tgt
 
     def overwrite_primitive_value(self, name: str, value: any, is_code=False):
@@ -223,7 +229,7 @@ class ODAPI:
         else:
             raise Exception("Unimplemented type "+value)
 
-    def create_link(self, link_name: Optional[str], assoc_name: str, src: UUID, tgt: UUID) -> UUID:
+    def create_link(self, link_name: Optional[str], assoc_name: str, src: UUID, tgt: UUID):
         global NEXT_ID
         types = self.bottom.read_outgoing_elements(self.mm, assoc_name) 
         if len(types) == 0:
@@ -235,12 +241,12 @@ class ODAPI:
             link_name = f"__{assoc_name}{NEXT_ID}"
             NEXT_ID += 1
         link_id = self.od._create_link(link_name, typ, src, tgt)
-        self.recompute_mappings()
+        self.__recompute_mappings()
         return link_id
 
-    def create_object(self, object_name: Optional[str], class_name: str) -> UUID:
+    def create_object(self, object_name: Optional[str], class_name: str):
         obj = self.od.create_object(object_name, class_name)
-        self.recompute_mappings()
+        self.__recompute_mappings()
         return obj
 
 # internal use
@@ -256,7 +262,6 @@ def bind_api_readonly(odapi):
         'get_target': odapi.get_target,
         'get_source': odapi.get_source,
         'get_slot': odapi.get_slot,
-        'get_slots': odapi.get_slots,
         'get_slot_value': odapi.get_slot_value,
         'get_slot_value_default': odapi.get_slot_value_default,
         'get_all_instances': odapi.get_all_instances,
@@ -265,7 +270,6 @@ def bind_api_readonly(odapi):
         'get_outgoing': odapi.get_outgoing,
         'get_incoming': odapi.get_incoming,
         'has_slot': odapi.has_slot,
-        'is_instance': odapi.is_instance,
     }
     return funcs
 
@@ -279,6 +283,6 @@ def bind_api(odapi):
         'create_object': odapi.create_object,
         'create_link': odapi.create_link,
         'delete': odapi.delete,
-        'set_slot_value': odapi.set_slot_value
+        'set_slot_value': odapi.set_slot_value,
     }
     return funcs

api/od_stub.pyi

@@ -1,9 +0,0 @@
-from typing import Optional
-from uuid import UUID
-
-from od_stub_readonly import *
-
-def create_object(object_name: Optional[str], class_name: str) -> UUID: ...
-def create_link(link_name: Optional[str], assoc_name: str, src: UUID, tgt: UUID) -> UUID: ...
-def delete(obj: UUID) -> None: ...
-def set_slot_value(obj: UUID, attr_name: str, new_value: any, is_code=False) -> None: ...

api/od_stub_readonly.pyi

@@ -1,18 +0,0 @@
-from typing import Any
-from uuid import UUID
-
-def get(name: str) -> UUID: ...
-def get_value(obj: UUID) -> Any: ...
-def get_target(link: UUID) -> UUID: ...
-def get_source(link: UUID) -> UUID: ...
-def get_slot(obj: UUID, attr_name: str) -> UUID: ...
-def get_slots(obj: UUID) -> list[str]: ...
-def get_slot_value(obj: UUID, attr_name: str) -> Any: ...
-def get_slot_value_default(obj: UUID, attr_name: str, default: any) -> Any: ...
-def get_all_instances(type_name: str, include_subtypes=True) -> list[UUID]: ...
-def get_name(obj: UUID) -> str: ...
-def get_type_name(obj: UUID) -> str: ...
-def get_outgoing(obj: UUID, assoc_name: str, include_subtypes=True) -> list[UUID]: ...
-def get_incoming(obj: UUID, assoc_name: str, include_subtypes: object = True) -> list[UUID]: ...
-def has_slot(obj: UUID, attr_name: str) -> bool: ...
-def is_instance(obj: UUID, type_name: str, include_subtypes=True) -> bool: ...

bootstrap/primitive.py

@@ -47,7 +47,7 @@ def bootstrap_constraint(class_node, type_name: str, python_type: str, scd_root:
     bottom.create_edge(constraint_node, scd_node, "Morphism")
     bottom.create_edge(constraint_link, scd_link, "Morphism")
     
-def bootstrap_primitive_types(scd_root, state, integer_type, boolean_type, float_type, string_type, type_type, actioncode_type, bytes_type):
+def bootstrap_primitive_types(scd_root, state, integer_type, boolean_type, float_type, string_type, type_type, actioncode_type):
     # Order is important: Integer must come first
     class_integer    = bootstrap_type("Integer",    scd_root, integer_type,    state)
     class_type       = bootstrap_type("Type",       scd_root, type_type,       state)
@@ -55,7 +55,6 @@ def bootstrap_primitive_types(scd_root, state, integer_type, boolean_type, float
     class_float      = bootstrap_type("Float",      scd_root, float_type,      state)
     class_string     = bootstrap_type("String",     scd_root, string_type,     state)
     class_actioncode = bootstrap_type("ActionCode", scd_root, actioncode_type, state)
-    class_bytes      = bootstrap_type("Bytes",      scd_root, bytes_type,      state)
 
     # Can only create constraints after ActionCode type has been created:
     bootstrap_constraint(class_integer,    "Integer",    "int",   scd_root, integer_type,    actioncode_type, state)
@@ -64,4 +63,3 @@ def bootstrap_primitive_types(scd_root, state, integer_type, boolean_type, float
     bootstrap_constraint(class_float,      "Float",      "float", scd_root, float_type,      actioncode_type, state)
     bootstrap_constraint(class_string,     "String",     "str",   scd_root, string_type,     actioncode_type, state)
     bootstrap_constraint(class_actioncode, "ActionCode", "str",   scd_root, actioncode_type, actioncode_type, state)
-    bootstrap_constraint(class_bytes,      "Bytes",      "bytes", scd_root, bytes_type,      actioncode_type, state)

bootstrap/scd.py

@@ -2,7 +2,15 @@ from state.base import State, UUID
 from services.bottom.V0 import Bottom
 from services.primitives.boolean_type import Boolean
 from services.primitives.string_type import String
-from bootstrap.primitive import bootstrap_primitive_types
+from bootstrap.primitive import (
+    bootstrap_primitive_types
+    # bootstrap_boolean_type,
+    # bootstrap_float_type,
+    # bootstrap_integer_type,
+    # bootstrap_string_type,
+    # bootstrap_type_type,
+    # bootstrap_actioncode_type
+)
 
 
 def create_model_root(bottom: Bottom, model_name: str) -> UUID:
@@ -24,7 +32,6 @@ def bootstrap_scd(state: State) -> UUID:
     float_type_root = create_model_root(bottom, "Float")
     type_type_root = create_model_root(bottom, "Type")
     actioncode_type_root = create_model_root(bottom, "ActionCode")
-    bytes_type_root = create_model_root(bottom, "Bytes")
 
     # create MCL, without morphism links
 
@@ -78,7 +85,8 @@ def bootstrap_scd(state: State) -> UUID:
     add_edge_element("gc_inh_element", glob_constr_node, element_node)
     # # Attribute inherits from Element
     add_edge_element("attr_inh_element", attr_node, element_node)
-    # # Association inherits from Class
+    # # Association inherits from Element
+    # add_edge_element("assoc_inh_element", assoc_edge, element_node)
     add_edge_element("assoc_inh_element", assoc_edge, class_node)
     # # AttributeLink inherits from Element
     add_edge_element("attr_link_inh_element", attr_link_edge, element_node)
@@ -124,8 +132,7 @@ def bootstrap_scd(state: State) -> UUID:
         float_type_root,
         string_type_root,
         type_type_root,
-        actioncode_type_root,
-        bytes_type_root)
+        actioncode_type_root)
     # bootstrap_integer_type(mcl_root, integer_type_root, integer_type_root, actioncode_type_root, state)
     # bootstrap_boolean_type(mcl_root, boolean_type_root, integer_type_root, actioncode_type_root, state)
     # bootstrap_float_type(mcl_root, float_type_root, integer_type_root, actioncode_type_root, state)

concrete_syntax/common.py

@@ -16,8 +16,6 @@ def display_value(val: any, type_name: str, indentation=0, newline_character='\n
         return '"'+val+'"'.replace('\n', newline_character)
     elif type_name == "Integer" or type_name == "Boolean":
         return str(val)
-    elif type_name == "Bytes":
-        return val
     else:
         raise Exception("don't know how to display value" + type_name)
 
@@ -50,9 +48,6 @@ class TBase(Transformer):
     def CODE(self, token):
         return _Code(str(token[1:-1])) # strip the ``
 
-    def BYTES(self, token):
-        return (bytes(token[2:-1], "utf-8"), token.line)  # Strip b"" or b''
-
     def INDENTED_CODE(self, token):
         skip = 4 # strip the ``` and the following newline character
         space_count = 0

concrete_syntax/textual_cd/parser.py

@@ -40,7 +40,7 @@ attrs: attr*
 
 constraint: CODE | INDENTED_CODE
 
-class_: [ABSTRACT] "class" IDENTIFIER [multiplicity] ["(" superclasses ")"]  ["{" attrs [constraint ";"] "}"]
+class_: [ABSTRACT] "class" IDENTIFIER [multiplicity] ["(" superclasses ")"]  ["{" attrs [constraint] "}"]
 
 association: "association" IDENTIFIER  [multiplicity] IDENTIFIER "->" IDENTIFIER [multiplicity] ["{" attrs [constraint] "}"]
 
@@ -75,7 +75,7 @@ def parse_cd(state, m_text):
 
     primitive_types = {
         type_name : UUID(state.read_value(state.read_dict(state.read_root(), type_name)))
-            for type_name in ["Integer", "String", "Boolean", "ActionCode"]
+            for type_name in ["Integer", "String", "Boolean"]
     }
 
     class T(TBase):

concrete_syntax/textual_od/objectdiagrams.jinja2

@@ -1,23 +1,18 @@
 {% macro render_name(name) %}{{ name if not hide_names or name.startswith("__") else "" }}{% endmacro %}
 
-{% macro render_attributes(obj) %}
-{% if len(odapi.get_slots(obj)) > 0 %} {
+{% macro render_attributes(obj) %} {
   {% for attr_name in odapi.get_slots(obj) %}
     {{ attr_name}} = {{ display_value(
       val=odapi.get_slot_value(obj, attr_name),
       type_name=odapi.get_type_name(odapi.get_slot(obj, attr_name)),
       indentation=4) }};
-  {% endfor -%}
-}
-{% endif -%}
-{%- endmacro %}
+  {% endfor %}
+}{% endmacro %}
 
-{%- for obj_name, obj in objects %}
-{{ render_name(obj_name) }}:{{ odapi.get_type_name(obj) }}
-{{- render_attributes(obj) }}
-{% endfor -%}
+{% for obj_name, obj in objects %}
+{{ render_name(obj_name) }}:{{ odapi.get_type_name(obj) }}{{ render_attributes(obj) }}
+{% endfor %}
 
-{%- for lnk_name, lnk in links %}
-{{ render_name(obj_name) }}:{{ odapi.get_type_name(lnk) }} ({{odapi.get_name(odapi.get_source(lnk))}} -> {{odapi.get_name(odapi.get_target(lnk))}})
-{{- render_attributes(lnk) }}
-{% endfor -%}
+{% for lnk_name, lnk in links %}
+{{ render_name(obj_name) }}:{{ odapi.get_type_name(lnk) }} ({{odapi.get_name(odapi.get_source(lnk))}} -> {{odapi.get_name(odapi.get_target(lnk))}}){{ render_attributes(lnk) }}
+{% endfor %}

concrete_syntax/textual_od/parser.py

@@ -21,7 +21,6 @@ literal: INT
        | STR
        | BOOL
        | CODE
-       | BYTES
        | INDENTED_CODE
 
 INT: /[0-9]+/
@@ -29,8 +28,6 @@ STR: /"[^"]*"/
    | /'[^']*'/
 BOOL: "True" | "False"
 CODE: /`[^`]*`/
-BYTES: /b"[^"]*"/
-      | /b'[^']*'/
 INDENTED_CODE: /```[^`]*```/
 
 type_name: IDENTIFIER
@@ -70,7 +67,7 @@ def parse_od(state,
 
     primitive_types = {
         type_name : UUID(state.read_value(state.read_dict(state.read_root(), type_name)))
-            for type_name in ["Integer", "String", "Boolean", "ActionCode", "Bytes"]
+            for type_name in ["Integer", "String", "Boolean", "ActionCode"]
     }
 
     class T(Transformer):
@@ -92,10 +89,6 @@ def parse_od(state,
         def CODE(self, token):
             return (_Code(str(token[1:-1])), token.line) # strip the ``
 
-        def BYTES(self, token):
-            # Strip b"" or b'', and make \\ back to \ (happens when reading the file as a string)
-            return (token[2:-1].encode().decode('unicode_escape').encode('raw_unicode_escape'), token.line)  # Strip b"" or b''
-
         def INDENTED_CODE(self, token):
             skip = 4 # strip the ``` and the following newline character
             space_count = 0

concrete_syntax/textual_od/renderer.py

@@ -9,7 +9,7 @@ def render_od(state, m_id, mm_id, hide_names=True):
     
     m_od = od.OD(mm_id, m_id, state)
 
-    serialized = set(["Integer", "String", "Boolean", "ActionCode", "Bytes"]) # assume these types always already exist
+    serialized = set(["Integer", "String", "Boolean", "ActionCode"]) # assume these types always already exist
 
     def display_name(name: str):
         # object names that start with "__" are hidden

doc/odapi/.gitignore

@@ -1,3 +0,0 @@
-*.aux
-*.log
-*.out

doc/odapi/api_table.tex

@@ -1,121 +0,0 @@
-\documentclass{article}
-
-\usepackage[left=1cm, right=1cm]{geometry} % reduce page margins
-
-\usepackage{amssymb}
-\usepackage{booktabs}
-\usepackage[normalem]{ulem}
-\usepackage[utf8]{inputenc}
-\usepackage{hyperref}
-\usepackage{graphicx}
-\usepackage{tikz}
-\usepackage{color,listings}
-\usepackage{awesomebox}
-
-\newcommand{\specialcell}[2][c]{%
-  \begin{tabular}[#1]{@{}l@{}}#2\end{tabular}}
-
-\def\ck{\checkmark} 
-
-\begin{document}
-
-\centering
-\begin{scriptsize}
-\begin{tabular}{|l|c|c|c|c|c|l|}
-  \hline
-    &  \multicolumn{5}{c|}{Availability in Context} &  \\
-  \hline
-    &  \multicolumn{2}{c|}{ \specialcell{Meta-Model \\ Constraint}} & \multicolumn{2}{c|}{ \specialcell{Model Trans- \\ formation Rule} } & & \\
-
-  \hline
-     & \specialcell{ \textbf{Local} }
-     & \specialcell{ \textbf{Global} }
-     & \specialcell{ \textbf{NAC} \\ \textbf{LHS} }
-     & \textbf{RHS}
-     & \specialcell{ \textbf{OD-} \\ \textbf{API} }
-     & \textbf{Meaning} \\
-  \hline
-  \hline
-    \multicolumn{7}{|l|}{\textit{Querying}} \\
-  \hline
-  \texttt{this :obj} & \ck & & \ck & \ck & & Current object or link \\
-  \hline
-  \texttt{get\_name(:obj) :str} & \ck & \ck & \ck & \ck & \ck & Get name of object or link \\
-  \hline
-  \texttt{get(name:str) :obj} & \ck & \ck & \ck & \ck & \ck & Get object or link by name (inverse of \texttt{get\_name}) \\
-  \hline
-  \texttt{get\_type(:obj) :obj} & \ck & \ck & \ck & \ck & \ck & {Get type of object or link} \\
-  \hline
-  \texttt{get\_type\_name(:obj) :str} & \ck & \ck & \ck & \ck & \ck & {Same as \texttt{get\_name(get\_type(...))}} \\
-  \hline
-  \specialcell{
-       \texttt{is\_instance(:obj, type\_name:str}
-    \\ \texttt{    [,include\_subtypes:bool=True]) :bool}
-  } & \ck & \ck & \ck & \ck & \ck & \specialcell{Is object instance of given type\\(or subtype thereof)?} \\
-  \hline
-
-  \texttt{get\_value(:obj) :int|str|bool} & \ck & \ck & \ck & \ck & \ck & \specialcell{Get value (only works on Integer,\\String, Boolean objects)} \\
-  \hline
-  \texttt{get\_target(:link) :obj} & \ck & \ck & \ck & \ck & \ck & {Get target of link} \\
-  \hline
-  \texttt{get\_source(:link) :obj} & \ck & \ck & \ck & \ck & \ck & {Get source of link} \\
-  \hline
-  \texttt{get\_slot(:obj, attr\_name:str) :link} & \ck & \ck & \ck & \ck & \ck & {Get slot-link (link connecting object to a value)} \\
-  \hline
-  \specialcell{
-      \texttt{get\_slot\_value(:obj,}
-      \\ \texttt{attr\_name:str) :int|str|bool}
-   } & \ck & \ck & \ck & \ck & \ck & {Same as \texttt{get\_value(get\_slot(...))})} \\
-  \hline
-
-  \specialcell{
-         \texttt{get\_all\_instances(type\_name:str}
-      \\ \texttt{    [,include\_subtypes:bool=True]}
-      \\ \texttt{) :list<(str, obj)>}
-    } & \ck & \ck & \ck & \ck & \ck & \specialcell{Get list of tuples (name, object) \\ of given type (and its subtypes).} \\
-  \hline
-  \specialcell{
-       \texttt{get\_outgoing(:obj,}
-    \\ \texttt{ assoc\_name:str) :list<link>}
-  } & \ck & \ck & \ck & \ck & \ck & {Get outgoing links of given type} \\
-  \hline
-    \specialcell{
-       \texttt{get\_incoming(:obj,}
-    \\ \texttt{ assoc\_name:str) :list<link>}
-  } & \ck & \ck & \ck & \ck & \ck & {Get incoming links of given type} \\
-  \hline
-  \texttt{has\_slot(:obj, attr\_name:str) :bool} & \ck & \ck & \ck & \ck & \ck & {Does object have given slot?} \\
-  \hline
-  \texttt{matched(label:str) :obj} & & & \ck & \ck & & \specialcell{Get matched object by its label \\ (the name of the object in the pattern)} \\
-
-  \hline
-  \hline
-    \multicolumn{7}{|l|}{\textit{Modifying}} \\
-  \hline
-  \texttt{delete(:obj)} & & & & \ck & \ck & {Delete object or link} \\
-  \hline
-
-  \specialcell{
-       \texttt{set\_slot\_value(:obj, attr\_name:str,}
-    \\ \texttt{    val:int|str|bool)}
-  } & & & & \ck & \ck & \specialcell{Set value of slot.
-                              \\ Creates slot if it doesn't exist yet.} \\
-  \hline
-
-  \specialcell{
-    \texttt{create\_link(link\_name:str|None,} \\
-    \texttt{  assoc\_name:str, src:obj, tgt:obj) :link}
-  } & & & & \ck & \ck & \specialcell{Create link (typed by given association). \\
-                                 If \texttt{link\_name} is None, name is auto-generated.} \\
-  \hline
-  \specialcell{
-    \texttt{create\_object(object\_name:str|None,} \\
-    \texttt{  class\_name:str) :obj}
-  } & & & & \ck & \ck & \specialcell{Create object (typed by given class). \\
-                                 If \texttt{object\_name} is None, name is auto-generated.} \\
-  \hline
-  % \texttt{print(*args)} & \multicolumn{2}{c|}{Python's print function (useful for debugging)} & no, use the real print() \\
-\end{tabular}
-\end{scriptsize}
-
-\end{document}

examples/conformance/abstract_assoc.py

@@ -0,0 +1,75 @@
+from state.devstate import DevState
+from bootstrap.scd import bootstrap_scd
+from framework.conformance import Conformance, render_conformance_check_result
+from concrete_syntax.textual_od import parser, renderer
+from concrete_syntax.common import indent
+from concrete_syntax.plantuml import renderer as plantuml
+from util.prompt import yes_no, pause
+
+state = DevState()
+scd_mmm = bootstrap_scd(state)
+
+
+mm_cs = """
+    BaseA:Class {
+        abstract = True;
+    }
+    BaseB:Class {
+        abstract = True;
+    }
+    baseAssoc:Association (BaseA -> BaseB) {
+        abstract = True;
+        target_lower_cardinality = 1;
+        target_upper_cardinality = 2; # A has 1..2 B
+    }
+    A:Class
+    B:Class
+    assoc:Association (A -> B) {
+        # we can further restrict cardinality from baseAssoc:
+        target_upper_cardinality = 1;
+
+        # relaxing cardinalities or constraints can be done (meaning: it will still be a valid meta-model), but will have no effect: for any instance of a type, the constraints defined on the type and its supertypes will be checked.
+    }
+    :Inheritance (A -> BaseA)
+    :Inheritance (B -> BaseB)
+    :Inheritance (assoc -> baseAssoc)
+"""
+
+print()
+print("Parsing meta-model...")
+mm = parser.parse_od(
+    state,
+    m_text=mm_cs, # the string of text to parse
+    mm=scd_mmm, # the meta-model of class diagrams (= our meta-meta-model)
+)
+print("OK")
+
+print("Is our meta-model a valid class diagram?")
+conf = Conformance(state, mm, scd_mmm)
+print(render_conformance_check_result(conf.check_nominal()))
+
+m_cs = """
+    a0:A
+    b0:B
+    b1:B
+
+    # error: assoc (A -> B) must have tgt card 0..1 (and we have 2 instead)
+    :assoc (a0 -> b0)
+    :assoc (a0 -> b1)
+
+    # error: baseAssoc (A -> B) must have tgt card 1..2 (and we have 0 instead)
+    a1:A
+"""
+
+print()
+print("Parsing model...")
+m = parser.parse_od(
+    state,
+    m_text=m_cs,
+    mm=mm, # this time, the meta-model is the previous model we parsed
+)
+print("OK")
+
+print("Is our model a valid woods-diagram?")
+conf = Conformance(state, m, mm)
+print(render_conformance_check_result(conf.check_nominal()))

examples/conformance/metacircularity.py

@@ -0,0 +1,27 @@
+from state.devstate import DevState
+from bootstrap.scd import bootstrap_scd
+from services.scd import SCD
+from concrete_syntax.plantuml import renderer as plantuml
+
+def main():
+    state = DevState()
+    root = state.read_root() # id: 0
+
+    scd_mm_id = bootstrap_scd(state)
+
+    uml = ""
+
+    # Render SCD Meta-Model as Object Diagram
+    uml += plantuml.render_package("Object Diagram", plantuml.render_object_diagram(state, scd_mm_id, scd_mm_id, prefix_ids="od_"))
+
+    # Render SCD Meta-Model as Class Diagram
+    uml += plantuml.render_package("Class Diagram", plantuml.render_class_diagram(state, scd_mm_id, prefix_ids="cd_"))
+
+    # Render conformance
+    uml += plantuml.render_trace_conformance(state, scd_mm_id, scd_mm_id, prefix_inst_ids="od_", prefix_type_ids="cd_")
+
+    print(uml)
+
+
+if __name__ == "__main__":
+    main()

examples/conformance/woods.py

@@ -0,0 +1,202 @@
+from state.devstate import DevState
+from bootstrap.scd import bootstrap_scd
+from framework.conformance import Conformance, render_conformance_check_result
+from concrete_syntax.textual_od import parser, renderer
+from concrete_syntax.common import indent
+from concrete_syntax.plantuml import renderer as plantuml
+from util.prompt import yes_no, pause
+
+state = DevState()
+
+print("Loading meta-meta-model...")
+scd_mmm = bootstrap_scd(state)
+print("OK")
+
+print("Is our meta-meta-model a valid class diagram?")
+conf = Conformance(state, scd_mmm, scd_mmm)
+print(render_conformance_check_result(conf.check_nominal()))
+
+# If you are curious, you can serialize the meta-meta-model:
+# print("--------------")
+# print(indent(
+#     renderer.render_od(state,
+#         m_id=scd_mmm,
+#         mm_id=scd_mmm),
+#     4))
+# print("--------------")
+
+
+# Change this:
+woods_mm_cs = """
+    Animal:Class {
+        # The class Animal is an abstract class:
+        abstract = True;
+    }
+
+    # A class without attributes
+    # The `abstract` attribute shown above is optional (default: False)
+    Bear:Class
+
+    # Inheritance between two Classes is expressed as follows:
+    :Inheritance (Bear -> Animal)  # meaning: Bear is an Animal
+
+    Man:Class {
+        # We can define lower and upper cardinalities on Classes
+        # (if unspecified, the lower-card is 0, and upper-card is infinity)
+
+        lower_cardinality = 1; # there must be at least one Man in every model
+        upper_cardinality = 2; # there must be at most two Men in every model
+
+        constraint = ```
+            # Python code
+            # the last statement must be a boolean expression
+
+            # When conformance checking, this code will be run for every Man-object.
+            # The variable 'this' refers to the current Man-object.
+
+            # Every man weighs at least '20'
+            # (the attribute 'weight' is added further down)
+            get_value(get_slot(this, "weight")) > 20
+        ```;
+    }
+    # Note that we can only declare the inheritance link after having declared both Man and Animal: We can only refer to earlier objects
+    :Inheritance (Man -> Animal) # Man is also an Animal
+
+
+    # BTW, we could also give the Inheritance-link a name, for instance:
+    #    man_is_animal:Inheritance (Man -> Animal)
+    #
+    # Likewise, Classes, Associations, ... can also be nameless, for instance:
+    #    :Class { ... }
+    #    :Association (Man -> Man) { ... }
+    # However, we typically want to give names to classes and associations, because we want to refer to them later.
+
+
+    # We now add an attribute to 'Man'
+    # Attributes are not that different from Associations: both are represented by links
+    Man_weight:AttributeLink (Man -> Integer) {
+        name = "weight"; # mandatory!
+        optional = False; # <- meaning: every Man *must* have a weight
+
+        # We can also define constraints on attributes
+        constraint = ```
+            # Python code
+            # Here, 'this' refers to the LINK that connects a Man-object to an Integer
+            tgt = get_target(this) # <- we get the target of the LINK (an Integer-object)
+            weight = get_value(tgt) # <- get the Integer-value (e.g., 80)
+            weight > 20
+        ```;
+    }
+
+    # Create an Association from Man to Animal
+    afraidOf:Association (Man -> Animal) {
+        # An association has the following (optional) attributes:
+        #    - source_lower_cardinality (default: 0)
+        #    - source_upper_cardinality (default: infinity)
+        #    - target_lower_cardinality (default: 0)
+        #    - target_upper_cardinality (default: infinity)
+
+        # Every Man is afraid of at least one Animal:
+        target_lower_cardinality = 1;
+
+        # No more than 6 Men are afraid of the same Animal:
+        source_upper_cardinality = 6;
+    }
+
+    # Create a GlobalConstraint
+    total_weight_small_enough:GlobalConstraint {
+        # Note: for GlobalConstraints, there is no 'this'-variable
+        constraint = ```
+            # Python code
+            # compute sum of all weights
+            total_weight = 0
+            for man_name, man_id in get_all_instances("Man"):
+                total_weight += get_value(get_slot(man_id, "weight"))
+
+            # as usual, the last statement is a boolean expression that we think should be satisfied
+            total_weight < 85
+        ```;
+    }
+"""
+
+print()
+print("Parsing 'woods' meta-model...")
+woods_mm = parser.parse_od(
+    state,
+    m_text=woods_mm_cs, # the string of text to parse
+    mm=scd_mmm, # the meta-model of class diagrams (= our meta-meta-model)
+)
+print("OK")
+
+# As a double-check, you can serialize the parsed model:
+# print("--------------")
+# print(indent(
+#     renderer.render_od(state,
+#         m_id=woods_mm,
+#         mm_id=scd_mmm),
+#     4))
+# print("--------------")
+
+print("Is our 'woods' meta-model a valid class diagram?")
+conf = Conformance(state, woods_mm, scd_mmm)
+print(render_conformance_check_result(conf.check_nominal()))
+
+# Change this:
+woods_m_cs = """
+    george:Man {
+        weight = 15;
+    }
+    billy:Man {
+        weight = 100;
+    }
+    bear1:Bear
+    bear2:Bear
+    :afraidOf (george -> bear1)
+    :afraidOf (george -> bear2)
+"""
+
+print()
+print("Parsing 'woods' model...")
+woods_m = parser.parse_od(
+    state,
+    m_text=woods_m_cs,
+    mm=woods_mm, # this time, the meta-model is the previous model we parsed
+)
+print("OK")
+
+# As a double-check, you can serialize the parsed model:
+# print("--------------")
+# print(indent(
+#     renderer.render_od(state,
+#         m_id=woods_m,
+#         mm_id=woods_mm),
+#     4))
+# print("--------------")
+
+print("Is our model a valid woods-diagram?")
+conf = Conformance(state, woods_m, woods_mm)
+print(render_conformance_check_result(conf.check_nominal()))
+
+
+print()
+print("==================================")
+if yes_no("Print PlantUML?"):
+    print_mm = yes_no("  ▸ Print meta-model?")
+    print_m = yes_no("  ▸ Print model?")
+    print_conf = print_mm and print_m and yes_no("  ▸ Print conformance links?")
+
+    uml = ""
+    if print_mm:
+        uml += plantuml.render_package("Meta-model", plantuml.render_class_diagram(state, woods_mm))
+    if print_m:
+        uml += plantuml.render_package("Model", plantuml.render_object_diagram(state, woods_m, woods_mm))
+    if print_conf:
+        uml += plantuml.render_trace_conformance(state, woods_m, woods_mm)
+
+    print("==================================")
+    print(uml)
+    print("==================================")
+    print("Go to either:")
+    print("  ▸ https://www.plantuml.com/plantuml/uml")
+    print("  ▸ https://mstro.duckdns.org/plantuml/uml")
+    print("and paste the above string.")

examples/conformance/woods2.py

@@ -0,0 +1,133 @@
+from state.devstate import DevState
+from bootstrap.scd import bootstrap_scd
+from framework.conformance import Conformance, render_conformance_check_result
+from concrete_syntax.textual_cd import parser as parser_cd
+from concrete_syntax.textual_od import parser as parser_od
+from concrete_syntax.textual_od import renderer as renderer_od
+from concrete_syntax.common import indent
+from concrete_syntax.plantuml import renderer as plantuml
+from util.prompt import yes_no, pause
+
+state = DevState()
+
+print("Loading meta-meta-model...")
+scd_mmm = bootstrap_scd(state)
+print("OK")
+
+print("Is our meta-meta-model a valid class diagram?")
+conf = Conformance(state, scd_mmm, scd_mmm)
+print(render_conformance_check_result(conf.check_nominal()))
+
+# If you are curious, you can serialize the meta-meta-model:
+# print("--------------")
+# print(indent(
+#     renderer.render_od(state,
+#         m_id=scd_mmm,
+#         mm_id=scd_mmm),
+#     4))
+# print("--------------")
+
+
+# Change this:
+woods_mm_cs = """
+    abstract class Animal
+
+    class Bear (Animal) # Bear inherits Animal
+
+    class Man [1..2] (Animal) {
+        Integer weight `get_value(get_target(this)) > 20`; # <- constraint in context of attribute-link
+
+        `get_value(get_slot(this, "weight")) > 20` # <- constraint in context of Man-object
+    }
+
+    association afraidOf  [0..6] Man -> Animal [1..2]
+
+    global total_weight_small_enough ```
+        total_weight = 0
+        for man_name, man_id in get_all_instances("Man"):
+            total_weight += get_value(get_slot(man_id, "weight"))
+        total_weight < 85
+    ```
+"""
+
+print()
+print("Parsing 'woods' meta-model...")
+woods_mm = parser_cd.parse_cd(
+    state,
+    m_text=woods_mm_cs, # the string of text to parse
+)
+print("OK")
+
+# We can serialize the class diagram to our object diagram syntax
+#  (because the class diagram IS also an object diagram):
+print("--------------")
+print(indent(
+    renderer_od.render_od(state,
+        m_id=woods_mm,
+        mm_id=scd_mmm),
+    4))
+print("--------------")
+
+print("Is our 'woods' meta-model a valid class diagram?")
+conf = Conformance(state, woods_mm, scd_mmm)
+print(render_conformance_check_result(conf.check_nominal()))
+
+# Change this:
+woods_m_cs = """
+    george:Man {
+        weight = 15;
+    }
+    billy:Man {
+        weight = 100;
+    }
+    bear1:Bear
+    bear2:Bear
+    :afraidOf (george -> bear1)
+    :afraidOf (george -> bear2)
+"""
+
+print()
+print("Parsing 'woods' model...")
+woods_m = parser_od.parse_od(
+    state,
+    m_text=woods_m_cs,
+    mm=woods_mm, # this time, the meta-model is the previous model we parsed
+)
+print("OK")
+
+# As a double-check, you can serialize the parsed model:
+# print("--------------")
+# print(indent(
+#     renderer.render_od(state,
+#         m_id=woods_m,
+#         mm_id=woods_mm),
+#     4))
+# print("--------------")
+
+print("Is our model a valid woods-diagram?")
+conf = Conformance(state, woods_m, woods_mm)
+print(render_conformance_check_result(conf.check_nominal()))
+
+
+print()
+print("==================================")
+if yes_no("Print PlantUML?"):
+    print_mm = yes_no("  ▸ Print meta-model?")
+    print_m = yes_no("  ▸ Print model?")
+    print_conf = print_mm and print_m and yes_no("  ▸ Print conformance links?")
+
+    uml = ""
+    if print_mm:
+        uml += plantuml.render_package("Meta-model", plantuml.render_class_diagram(state, woods_mm))
+    if print_m:
+        uml += plantuml.render_package("Model", plantuml.render_object_diagram(state, woods_m, woods_mm))
+    if print_conf:
+        uml += plantuml.render_trace_conformance(state, woods_m, woods_mm)
+
+    print("==================================")
+    print(uml)
+    print("==================================")
+    print("Go to either:")
+    print("  ▸ https://www.plantuml.com/plantuml/uml")
+    print("  ▸ https://mstro.duckdns.org/plantuml/uml")
+    print("and paste the above string.")

examples/ftg_pm_pt/ftg_pm_pt.py

@@ -1,47 +0,0 @@
-import os
-
-# Todo: remove src.backend.muMLE from the imports
-from state.devstate import DevState
-from bootstrap.scd import bootstrap_scd
-from concrete_syntax.textual_od.parser import parse_od
-from api.od import ODAPI
-from concrete_syntax.textual_od.renderer import render_od as od_renderer
-from concrete_syntax.plantuml import make_url as plant_url, renderer as plant_renderer
-from concrete_syntax.graphviz import make_url as graphviz_url, renderer as graphviz_renderer
-
-class FtgPmPt:
-
-    def __init__(self, name: str):
-        self.state = DevState()
-        self.scd_mmm = bootstrap_scd(self.state)
-        self.meta_model = self.load_metamodel()
-        self.model = None
-        self.odapi = None
-        self.name = name
-
-    @staticmethod
-    def read_file(file_name):
-        with open(os.path.join(os.path.dirname(__file__), file_name)) as file:
-            return file.read()
-
-    def load_metamodel(self):
-        mm_cs = self.read_file("pm/metamodels/mm_design.od")
-        mm_rt_cs = mm_cs + self.read_file("pm/metamodels/mm_runtime.od")
-        mm_total = mm_rt_cs + self.read_file("pt/metamodels/mm_design.od")
-        return parse_od(self.state, m_text=mm_total, mm=self.scd_mmm)
-
-    def load_model(self, m_text: str | None = None):
-        m_text = "" if not m_text else m_text
-        self.model = parse_od(self.state, m_text=m_text, mm=self.meta_model)
-        self.odapi = ODAPI(self.state, self.model, self.meta_model)
-
-    def render_od(self):
-        return od_renderer(self.state, self.model, self.meta_model, hide_names=False)
-
-    def render_plantuml_object_diagram(self):
-        print(plant_url.make_url(plant_renderer.render_package(
-            self.name, plant_renderer.render_object_diagram(self.state, self.model, self.meta_model)))
-        )
-
-    def render_graphviz_object_diagram(self):
-        print(graphviz_url.make_url(graphviz_renderer.render_object_diagram(self.state, self.model, self.meta_model)))

examples/ftg_pm_pt/help_functions.py

@@ -1,68 +0,0 @@
-import copy
-import pickle
-
-from api.od import ODAPI
-
-from examples.ftg_pm_pt.helpers.composite_activity import execute_composite_workflow
-
-def serialize(obj):
-    return pickle.dumps(obj)
-
-
-def deserialize(obj):
-    return pickle.loads(obj)
-
-
-def create_activity_links(od: ODAPI, activity, prev_element, ctrl_port, end_trace=None,
-                          relation_type="pt_IsFollowedBy"):
-    od.create_link(None, "pt_RelatesTo", activity, ctrl_port)
-    od.create_link(None, relation_type, prev_element, activity)
-    if end_trace:
-        od.create_link(None, "pt_IsFollowedBy", activity, end_trace)
-
-
-def extract_input_data(od: ODAPI, activity):
-    input_data = {}
-    for has_data_in in od.get_outgoing(activity, "pm_HasDataIn"):
-        data_port = od.get_target(has_data_in)
-        artefact_state = od.get_source(od.get_incoming(od.get_source(od.get_incoming(data_port, "pm_DataFlowOut")[0]), "pm_Of")[0])
-        input_data[od.get_name(data_port)] = deserialize(od.get_slot_value(artefact_state, "data"))
-    return input_data
-
-
-def execute_activity(od: ODAPI, globs, activity, input_data):
-    inp = copy.deepcopy(input_data) # Necessary, otherwise the function changes the values inside the dictionary -> need the original values for process trace
-    func = globs[od.get_slot_value(activity, "func")]
-    return func(inp) if func.__code__.co_argcount > 0 else func()
-
-
-def handle_artefact(od: ODAPI, activity, artefact_type, relation_type, data_port=None, data=None,
-                    direction="DataFlowIn"):
-    artefact = od.create_object(None, "pt_Artefact")
-    if 'pt_Consumes' == relation_type:
-        od.create_link(None, relation_type, artefact, activity)
-    else:
-        od.create_link(None, relation_type, activity, artefact)
-    if data_port:
-        flow_direction = od.get_incoming if relation_type == 'pt_Consumes' else od.get_outgoing
-        ass_side = od.get_source if relation_type == 'pt_Consumes' else od.get_target
-        pm_artefact = ass_side(flow_direction(data_port, f"pm_{direction}")[0])
-        prev_artefact = find_previous_artefact(od, od.get_incoming(pm_artefact, "pt_BelongsTo"))
-        if prev_artefact:
-            od.create_link(None, "pt_PrevVersion", artefact, prev_artefact)
-        od.create_link(None, "pt_BelongsTo", artefact, pm_artefact)
-        if data is not None:
-            artefact_state = od.get_source(od.get_incoming(pm_artefact, "pm_Of")[0])
-            od.set_slot_value(artefact_state, "data", serialize(data))
-            od.set_slot_value(artefact, "data", serialize(data))
-
-
-def find_previous_artefact(od: ODAPI, linked_artefacts):
-    return next((od.get_source(link) for link in linked_artefacts if
-                 not od.get_incoming(od.get_source(link), "pt_PrevVersion")), None)
-
-
-def update_control_states(od: ODAPI, activity, ctrl_out):
-    for has_ctrl_in in od.get_outgoing(activity, "pm_HasCtrlIn"):
-        od.set_slot_value(od.get_source(od.get_incoming(od.get_target(has_ctrl_in), "pm_Of")[0]), "active", False)
-    od.set_slot_value(od.get_source(od.get_incoming(ctrl_out, "pm_Of")[0]), "active", True)

examples/ftg_pm_pt/helpers/composite_activity.py

@@ -1,272 +0,0 @@
-from uuid import UUID
-
-from api.od import ODAPI
-from examples.ftg_pm_pt.ftg_pm_pt import FtgPmPt
-from examples.ftg_pm_pt.runner import FtgPmPtRunner
-
-
-def find_previous_artefact(od: ODAPI, linked_artefacts):
-    return next((od.get_source(link) for link in linked_artefacts if
-                 not od.get_incoming(od.get_source(link), "pt_PrevVersion")), None)
-
-
-def create_activity_links(od: ODAPI, activity, prev_element, ctrl_port, end_trace=None,
-                          relation_type="pt_IsFollowedBy"):
-    od.create_link(None, "pt_RelatesTo", activity, ctrl_port)
-    od.create_link(None, relation_type, prev_element, activity)
-    if end_trace:
-        od.create_link(None, "pt_IsFollowedBy", activity, end_trace)
-
-
-def get_workflow_path(od: ODAPI, activity: UUID):
-    return od.get_slot_value(activity, "subworkflow_path")
-
-
-def get_workflow(workflow_path: str):
-    with open(workflow_path, "r") as f:
-        return f.read()
-
-
-############################
-
-def get_runtime_state(od: ODAPI, design_obj: UUID):
-    states = od.get_incoming(design_obj, "pm_Of")
-    if len(states) == 0:
-        print(f"Design object '{od.get_name(design_obj)}' has no runtime state.")
-        return None
-    return od.get_source(states[0])
-
-
-def get_source_incoming(od: ODAPI, obj: UUID, link_name: str):
-    links = od.get_incoming(obj, link_name)
-    if len(links) == 0:
-        print(f"Object '{od.get_name(obj)} has no incoming links of type '{link_name}'.")
-        return None
-    return od.get_source(links[0])
-
-
-def get_target_outgoing(od: ODAPI, obj: UUID, link_name: str):
-    links = od.get_outgoing(obj, link_name)
-    if len(links) == 0:
-        print(f"Object '{od.get_name(obj)} has no outgoing links of type '{link_name}'.")
-        return None
-    return od.get_target(links[0])
-
-
-def set_control_port_value(od: ODAPI, port: UUID, value: bool):
-    state = get_runtime_state(od, port)
-    od.set_slot_value(state, "active", value)
-
-
-def set_artefact_data(od: ODAPI, artefact: UUID, value: bytes):
-    state = artefact
-    # Only the proces model of the artefact contains a runtime state
-    if od.get_type_name(state) == "pm_Artefact":
-        state = get_runtime_state(od, artefact)
-    od.set_slot_value(state, "data", value)
-
-
-def get_artefact_data(od: ODAPI, artefact):
-    state = artefact
-    # Only the proces model of the artefact contains a runtime state
-    if od.get_type_name(state) == "pm_Artefact":
-        state = get_runtime_state(od, artefact)
-    return od.get_slot_value(state, "data")
-
-
-############################
-
-def set_workflow_control_source(workflow_model: FtgPmPt, ctrl_port_name: str, composite_linkage: dict):
-    od = workflow_model.odapi
-    source_port_name = composite_linkage[ctrl_port_name]
-    source_port = od.get(source_port_name)
-    set_control_port_value(od, source_port, True)
-
-
-def set_workflow_artefacts(act_od: ODAPI, activity: UUID, workflow_model: FtgPmPt, composite_linkage: dict):
-    for data_port in [act_od.get_target(data_in) for data_in in act_od.get_outgoing(activity, "pm_HasDataIn")]:
-        # Get the data source port of the inner workflow
-        data_port_name = act_od.get_name(data_port)
-        source_port_name = composite_linkage[data_port_name]
-        source_port = workflow_model.odapi.get(source_port_name)
-
-        # Get the artefact that is linked to the data port of the activity
-        act_artefact = get_source_incoming(act_od, data_port, "pm_DataFlowOut")
-        # Get the data of the artefact
-        artefact_data = get_artefact_data(act_od, act_artefact)
-
-        # Get the artefact that is linked to the data port of the inner workflow
-        workflow_artefact = get_target_outgoing(workflow_model.odapi, source_port, "pm_DataFlowIn")
-        set_artefact_data(workflow_model.odapi, workflow_artefact, artefact_data)
-
-
-def get_activity_port_from_inner_port(composite_linkage: dict, port_name: str):
-    for act_port_name, work_port_name in composite_linkage.items():
-        if work_port_name == port_name:
-            return act_port_name
-
-
-def execute_composite_workflow(od: ODAPI, activity: UUID, ctrl_port: UUID, composite_linkage: dict,
-                               packages: dict | None, matched=None):
-    activity_name = od.get_slot_value(activity, "name")
-
-    # First get the path of the object diagram file that contains the inner workflow of the activity
-    workflow_path = get_workflow_path(od, activity)
-
-    # Read the object diagram file
-    workflow = get_workflow(workflow_path)
-
-    # Create an FtgPmPt object
-    workflow_model = FtgPmPt(activity_name)
-
-    # Load the workflow to the object
-    workflow_model.load_model(workflow)
-
-    # Set the correct control source port of the workflow to active
-    set_workflow_control_source(workflow_model, od.get_name(ctrl_port), composite_linkage[activity_name])
-
-    # If a data port is linked, set the data of the artefact
-    set_workflow_artefacts(od, activity, workflow_model, composite_linkage[activity_name])
-
-    # Create an FtgPmPtRunner object with the FtgPmPt object
-    workflow_runner = FtgPmPtRunner(workflow_model)
-
-    # Set the packages if present
-    workflow_runner.set_packages(packages, is_path=False)
-
-    # Run the FtgPmPtRunner (is a subprocess necessary? This makes it more complicated because now we have direct access to the object)
-    workflow_runner.run()
-
-    # Contains all the ports of the inner workflow -> map back to the activity ports, and so we can set the correct
-    # Control ports to active and also set the data artefacts correctly
-    ports = extract_inner_workflow(workflow_model.odapi)
-    start_act = None
-    end_act = None
-    for port in [port for port in ports if port]:
-        port_name = workflow_model.odapi.get_name(port)
-        activity_port_name = get_activity_port_from_inner_port(composite_linkage[activity_name], port_name)
-        activity_port = od.get(activity_port_name)
-        match workflow_model.odapi.get_type_name(port):
-            case "pm_CtrlSource":
-                start_act = handle_control_source(od, activity_port, matched("prev_trace_element"))
-            case "pm_CtrlSink":
-                end_act = handle_control_sink(od, activity_port, start_act, matched("end_trace"))
-            case "pm_DataSource":
-                handle_data_source(od, activity_port, start_act)
-            case "pm_DataSink":
-                handle_data_sink(od, workflow_model.odapi, activity_port, port, end_act)
-
-
-def handle_control_source(od: ODAPI, port, prev_trace_elem):
-    set_control_port_value(od, port, False)
-    start_activity = od.create_object(None, "pt_StartActivity")
-    create_activity_links(od, start_activity, prev_trace_elem, port)
-    return start_activity
-
-
-def handle_control_sink(od: ODAPI, port, start_act, end_trace):
-    set_control_port_value(od, port, True)
-    end_activity = od.create_object(None, "pt_EndActivity")
-    create_activity_links(od, end_activity, start_act, port, end_trace)
-    return end_activity
-
-
-def handle_data_source(od: ODAPI, port, start_activity):
-    pt_artefact = od.create_object(None, "pt_Artefact")
-    od.create_link(None, "pt_Consumes", pt_artefact, start_activity)
-
-    pm_artefact = get_source_incoming(od, port, "pm_DataFlowOut")
-    pm_artefact_data = get_artefact_data(od, pm_artefact)
-    set_artefact_data(od, pt_artefact, pm_artefact_data)
-    prev_pt_artefact = find_previous_artefact(od, od.get_incoming(pm_artefact, "pt_BelongsTo"))
-    if prev_pt_artefact:
-        od.create_link(None, "pt_PrevVersion", pt_artefact, prev_pt_artefact)
-    od.create_link(None, "pt_BelongsTo", pt_artefact, pm_artefact)
-
-
-def handle_data_sink(act_od: ODAPI, work_od: ODAPI, act_port, work_port, end_activity):
-    pt_artefact = act_od.create_object(None, "pt_Artefact")
-    act_od.create_link(None, "pt_Produces", end_activity, pt_artefact)
-
-    work_artefact = get_source_incoming(work_od, work_port, "pm_DataFlowOut")
-    work_artefact_data = get_artefact_data(work_od, work_artefact)
-
-    act_artefact = get_target_outgoing(act_od, act_port, "pm_DataFlowIn")
-
-    set_artefact_data(act_od, act_artefact, work_artefact_data)
-    set_artefact_data(act_od, pt_artefact, work_artefact_data)
-
-    prev_pt_artefact = find_previous_artefact(act_od, act_od.get_incoming(act_artefact, "pt_BelongsTo"))
-    if prev_pt_artefact:
-        act_od.create_link(None, "pt_PrevVersion", pt_artefact, prev_pt_artefact)
-    act_od.create_link(None, "pt_BelongsTo", pt_artefact, act_artefact)
-
-
-def extract_inner_workflow(workflow: ODAPI):
-    # Get the model, this should be only one
-    name, model = workflow.get_all_instances("pm_Model")[0]
-
-    # Get the start of the process trace
-    start_trace = get_source_incoming(workflow, model, "pt_Starts")
-    # Get the end of the process trace
-    end_trace = get_source_incoming(workflow, model, "pt_Ends")
-
-    # Get the first started activity
-    first_activity = get_target_outgoing(workflow, start_trace, "pt_IsFollowedBy")
-    # Get the last ended activity
-    end_activity = get_source_incoming(workflow, end_trace, "pt_IsFollowedBy")
-
-    # Get the control port that started the activity
-    act_ctrl_in = get_target_outgoing(workflow, first_activity, "pt_RelatesTo")
-    # Get the control port that is activated when the activity is executed
-    act_ctrl_out = get_target_outgoing(workflow, end_activity, "pt_RelatesTo")
-
-    # Get the control source of the workflow
-    ports = []
-    for port in workflow.get_incoming(act_ctrl_in, "pm_CtrlFlow"):
-        source = workflow.get_source(port)
-        if workflow.get_type_name(source) == "pm_CtrlSource":
-            # Only one port can activate an activity
-            ports.append(source)
-            break
-
-    # Get the control sink of the workflow
-    for port in workflow.get_outgoing(act_ctrl_out, "pm_CtrlFlow"):
-        sink = workflow.get_target(port)
-        if workflow.get_type_name(sink) == "pm_CtrlSink":
-            # Only one port can be set to active one an activity is ended
-            ports.append(sink)
-            break
-
-    # Get the data port that the activity consumes (if used)
-    consumed_links = workflow.get_incoming(first_activity, "pt_Consumes")
-    if len(consumed_links) > 0:
-        pt_artefact = None
-        for link in consumed_links:
-            pt_artefact = workflow.get_source(link)
-            # Check if it is the first artefact -> contains no previous version
-            if len(workflow.get_outgoing(pt_artefact, "pt_PrevVersion")) == 0:
-                break
-
-        pm_artefact = get_target_outgoing(workflow, pt_artefact, "pt_BelongsTo")
-        # Find the data source port
-        for link in workflow.get_incoming(pm_artefact, "pm_DataFlowIn"):
-            source = workflow.get_source(link)
-            if workflow.get_type_name(source) == "pm_DataSource":
-                # An activity can only use one artefact as input
-                ports.append(source)
-                break
-
-    # Get all data ports that are connected to an artefact that is produced by an activity in the workflow,
-    # where the artefact is also part of main workflow
-    for port_name, data_sink in workflow.get_all_instances("pm_DataSink"):
-        pm_art = get_source_incoming(workflow, data_sink, "pm_DataFlowOut")
-        # If the pm_artefact is linked to a proces trace artefact that is produced, we can add to port
-        links = workflow.get_incoming(pm_art, "pt_BelongsTo")
-        if not len(links):
-            continue
-        # A data sink port linkage will only be added to the proces trace when an activity is ended and so an artefact
-        # is produced, meaning that if a belongsTo link exists, a proces trace artefact is linked to this data port
-        ports.append(data_sink)
-
-    return ports

examples/ftg_pm_pt/operational_semantics/r_connect_process_trace_lhs.od

@@ -1,2 +0,0 @@
-# Match the model
-model:RAM_pm_Model

examples/ftg_pm_pt/operational_semantics/r_connect_process_trace_nac.od

@@ -1,7 +0,0 @@
-model:RAM_pm_Model
-
-# Check if the model isn't already connected to a process trace
-start_trace:RAM_pt_StartTrace
-  :RAM_pt_Starts (start_trace -> model)
-end_trace:RAM_pt_EndTrace
-  :RAM_pt_Ends (end_trace -> model)

examples/ftg_pm_pt/operational_semantics/r_connect_process_trace_rhs.od

@@ -1,12 +0,0 @@
-# Keep the left hand side
-model:RAM_pm_Model
-
-# Connect a process trace to it
-start_trace:RAM_pt_StartTrace
-    starts:RAM_pt_Starts (start_trace -> model)
-
-end_trace:RAM_pt_EndTrace
-    ends:RAM_pt_Ends (end_trace -> model)
-
-# Connect the start with the end
-:RAM_pt_IsFollowedBy (start_trace -> end_trace)

examples/ftg_pm_pt/operational_semantics/r_exec_activity_lhs.od

@@ -1,49 +0,0 @@
-# When a control port is active and is connected to an activity, we want to execute the activity
-# But, if the activity has input_and (input_or = False). It only can be activated if all its inputs are active
-
-
-# Match the model
-model:RAM_pm_Model
-
-# Match the a python automated activity
-py_activity:RAM_pm_PythonAutomatedActivity {
-    # Check if all connected ports are active in case of input_and
-    condition = ```
-        all_active = True
-        
-        # Check for or / and
-        if not get_slot_value(this, "input_or"):
-            # Get all the ctrl in ports
-            for has_ctrl_in in get_outgoing(this, "pm_HasCtrlIn"):
-                c_in_state = get_source(get_incoming(get_target(has_ctrl_in), "pm_Of")[0])
-                # Check if the port is active or not
-                if not get_slot_value(c_in_state, "active"):
-                    all_active = False
-                    break
-
-        all_active
-    ```;
-} model_to_activity:RAM_pm_Owns (model -> py_activity)
-
-
-# Match a control activity in port that is active
-ctrl_in:RAM_pm_CtrlActivityIn
-
-ctrl_in_state:RAM_pm_CtrlPortState {
-    RAM_active = `get_value(this)`;
-}
-
-state_to_port:RAM_pm_Of (ctrl_in_state -> ctrl_in)
-
-# Match the activity link to the port
-activity_to_port:RAM_pm_HasCtrlIn (py_activity -> ctrl_in)
-
-# Match the end of the trace
-end_trace:RAM_pt_EndTrace
-ends:RAM_pt_Ends (end_trace -> model)
-
-# Match the previous trace element before the end trace
-prev_trace_element:RAM_pt_Event
-
-followed_by:RAM_pt_IsFollowedBy (prev_trace_element -> end_trace)
-

examples/ftg_pm_pt/operational_semantics/r_exec_activity_rhs.od

@@ -1,42 +0,0 @@
-model:RAM_pm_Model
-
-py_activity:RAM_pm_PythonAutomatedActivity {
-
-    condition = ```
-        start_activity = create_object(None, "pt_StartActivity")
-        create_activity_links(odapi, start_activity, matched("prev_trace_element"), matched("ctrl_in"))
-        input_data = extract_input_data(odapi, this)
-        result = execute_activity(odapi, globals()["packages"], this, input_data)
-        if len(result) == 3:
-            status_code, output_data, input_used = result
-        else:
-            status_code, output_data, input_used = *result, None
-        if input_used:
-            handle_artefact(odapi, start_activity, "pt_Artefact", "pt_Consumes", get(input_used), input_data[input_used], direction="DataFlowOut")
-        end_activity = create_object(None, "pt_EndActivity")
-        ctrl_out = get(status_code)
-        create_activity_links(odapi, end_activity, start_activity, ctrl_out, end_trace=matched("end_trace"))
-        if output_data:
-            port, data = output_data
-            handle_artefact(odapi, end_activity, "pt_Artefact", "pt_Produces", get(port), data, direction="DataFlowIn")
-        update_control_states(odapi, this, ctrl_out)
-    ```;
-}
-
-model_to_activity:RAM_pm_Owns
-
-ctrl_in:RAM_pm_CtrlActivityIn
-
-ctrl_in_state:RAM_pm_CtrlPortState {
-    RAM_active = `False`;
-}
-
-state_to_port:RAM_pm_Of (ctrl_in_state -> ctrl_in)
-
-activity_to_port:RAM_pm_HasCtrlIn (py_activity -> ctrl_in)
-
-end_trace:RAM_pt_EndTrace
-ends:RAM_pt_Ends (end_trace -> model)
-
-prev_trace_element:RAM_pt_Event
-

examples/ftg_pm_pt/operational_semantics/r_exec_composite_activity_lhs.od

@@ -1,36 +0,0 @@
-# When a control port is active and is connected to an activity, we want to execute the activity. If it is a composite one, we execute the inner workflow of it
-# But, if the activity has input_and (input_or = False). It only can be activated if all its inputs are active
-
-
-# Match the model
-model:RAM_pm_Model
-
-# Match the a python automated activity
-activity:RAM_pm_Activity {
-
-    RAM_composite = `True`;
-
-} model_to_activity:RAM_pm_Owns (model -> activity)
-
-
-# Match a control activity in port that is active
-ctrl_in:RAM_pm_CtrlActivityIn
-
-ctrl_in_state:RAM_pm_CtrlPortState {
-    RAM_active = `get_value(this)`;
-}
-
-state_to_port:RAM_pm_Of (ctrl_in_state -> ctrl_in)
-
-# Match the activity link to the port
-activity_to_port:RAM_pm_HasCtrlIn (activity -> ctrl_in)
-
-# Match the end of the trace
-end_trace:RAM_pt_EndTrace
-ends:RAM_pt_Ends (end_trace -> model)
-
-# Match the previous trace element before the end trace
-prev_trace_element:RAM_pt_Event
-
-followed_by:RAM_pt_IsFollowedBy (prev_trace_element -> end_trace)
-

examples/ftg_pm_pt/operational_semantics/r_exec_composite_activity_rhs.od

@@ -1,29 +0,0 @@
-model:RAM_pm_Model
-
-activity:RAM_pm_Activity {
-
-    RAM_composite = `True`;
-
-    condition = ```
-        # Execute inner workflow
-        execute_composite_workflow(odapi, this, matched("ctrl_in"), globals()["composite_linkage"], globals()["packages"], matched)
-    ```;
-}
-
-model_to_activity:RAM_pm_Owns
-
-ctrl_in:RAM_pm_CtrlActivityIn
-
-ctrl_in_state:RAM_pm_CtrlPortState {
-    RAM_active = `False`;
-}
-
-state_to_port:RAM_pm_Of (ctrl_in_state -> ctrl_in)
-
-activity_to_port:RAM_pm_HasCtrlIn (activity -> ctrl_in)
-
-end_trace:RAM_pt_EndTrace
-ends:RAM_pt_Ends (end_trace -> model)
-
-prev_trace_element:RAM_pt_Event
-

examples/ftg_pm_pt/operational_semantics/r_trigger_ctrl_flow_lhs.od

@@ -1,20 +0,0 @@
-# Match an active control output port
-out_state:RAM_pm_CtrlPortState {
-    RAM_active = `get_value(this)`;
-}
-
-out:RAM_pm_CtrlOut
-
-state_to_out:RAM_pm_Of (out_state -> out)
-
-# Match an inactive control input port
-in_state:RAM_pm_CtrlPortState {
-    RAM_active = `not get_value(this)`;
-}
-
-in:RAM_pm_CtrlIn
-
-state_to_in:RAM_pm_Of (in_state -> in)
-
-# Match the connection between those two ports
-flow:RAM_pm_CtrlFlow (out -> in)

examples/ftg_pm_pt/operational_semantics/r_trigger_ctrl_flow_rhs.od

@@ -1,42 +0,0 @@
-# Copy the left hand side
-
-out_state:RAM_pm_CtrlPortState {
-    # Only set the output port to inactive if all connected input ports are set to active
-    RAM_active = ```
-        set_to_active = False
-
-        output_port = matched("out")
-        outgoing_flows = get_outgoing(output_port, "pm_CtrlFlow")
-
-        # for each flow: pm_CtrlFlow -> pm_CtrlIn <- pm_Of <- pm_CtrlPortState == state 
-        all_input_port_states = [get_source(get_incoming(get_target(flow), "pm_Of")[0]) for flow in outgoing_flows]
-        input_port_state = matched("in_state")
-
-        for state in all_input_port_states:
-            is_active = get_slot_value(state, "active")
-
-            # If the state is not active and it is not the input port state we have matched and planned to set active
-            # Then we can't yet set this output port state to active
-            if not is_active and state != input_port_state:
-                set_to_active = True
-                break
-          
-        # Set the attribute to the assigned value
-        set_to_active
-    ```;
-}
-
-out:RAM_pm_CtrlOut
-
-state_to_out:RAM_pm_Of (out_state -> out)
-
-in_state:RAM_pm_CtrlPortState {
-    # Set the input port active
-    RAM_active = `True`;
-}
-
-in:RAM_pm_CtrlIn
-
-state_to_in:RAM_pm_Of (in_state -> in)
-
-flow:RAM_pm_CtrlFlow (out -> in)

examples/ftg_pm_pt/pm/metamodels/mm_design.od

@@ -1,200 +0,0 @@
-##################################################
-
-pm_Model:Class
-
-##################################################
-
-pm_Stateful:Class
-
-##################################################
-
-pm_ModelElement:Class {
-  abstract = True;
-}
-
-##################################################
-
-pm_Activity:Class 
-  :Inheritance (pm_Activity -> pm_ModelElement)
-
-pm_Activity_name:AttributeLink (pm_Activity -> String) {
-  name = "name";
-  optional = False;
-}
-
-pm_Activity_composite:AttributeLink (pm_Activity -> Boolean) {
-  name = "composite";
-  optional = False;
-}
-
-pm_Activity_subworkflow_path:AttributeLink (pm_Activity -> String) {
-	name = "subworkflow_path";
-	optional = True;
-}
-
-
-pm_AutomatedActivity:Class {
-  abstract = True;
-} :Inheritance (pm_AutomatedActivity -> pm_Activity)
-
-pm_AutomatedActivity_input_or:AttributeLink (pm_AutomatedActivity -> Boolean) {
-  name = "input_or";
-  optional = False;
-}
-
-pm_PythonAutomatedActivity:Class 
-  :Inheritance (pm_PythonAutomatedActivity -> pm_AutomatedActivity)
-
-pm_PythonAutomatedActivity_func:AttributeLink (pm_PythonAutomatedActivity -> ActionCode) {
-  name = "func";
-  optional = False;
-}
-
-##################################################
-
-pm_Artefact:Class 
-  :Inheritance (pm_Artefact -> pm_ModelElement)
-  :Inheritance (pm_Artefact -> pm_Stateful)
-
-##################################################
-
-pm_CtrlPort:Class {
-  abstract = True;
-} :Inheritance (pm_CtrlPort -> pm_Stateful)
-
-pm_CtrlIn:Class {
-  abstract = True;
-} :Inheritance (pm_CtrlIn -> pm_CtrlPort)
-
-pm_CtrlSink:Class {
-    # 1) A control sink port must have at least one incoming control flow
-    # 2) A control sink port can't have any control flow output
-    constraint = ```
-        has_incoming = len(get_incoming(this, "pm_CtrlFlow")) > 0
-        no_outgoing = len(get_outgoing(this, "pm_CtrlFlow")) == 0
-
-        # Return constraint
-        has_incoming and no_outgoing
-    ```;
-} :Inheritance (pm_CtrlSink -> pm_CtrlIn)
-
-pm_CtrlActivityIn:Class {
-    # 1) Must have at least one incoming control flow
-    constraint = ```
-        has_incoming = len(get_incoming(this, "pm_CtrlFlow")) > 0
-        # Return constraint
-        has_incoming
-    ```;
-} :Inheritance (pm_CtrlActivityIn -> pm_CtrlIn)
-
-pm_CtrlOut:Class {
-  abstract = True;
-} :Inheritance (pm_CtrlOut -> pm_CtrlPort)
-
-pm_CtrlSource:Class {
-    # 1) A control source port can't have any control flow inputs
-    # 2) A control source port must have at least one outgoing control flow
-    constraint = ```
-        no_incoming = len(get_incoming(this, "pm_CtrlFlow")) == 0
-        has_outgoing = len(get_outgoing(this, "pm_CtrlFlow")) > 0
-
-        # Return constraint
-        no_incoming and has_outgoing
-    ```;
-} :Inheritance (pm_CtrlSource -> pm_CtrlOut)
-
-pm_CtrlActivityOut:Class {
-    # 1) Must have at least one outgoing control flow
-    constraint = ```
-        has_outgoing = len(get_outgoing(this, "pm_CtrlFlow")) > 0
-
-        # Return constraint
-        has_outgoing
-    ```;
-} :Inheritance (pm_CtrlActivityOut -> pm_CtrlOut)
-
-##################################################
-
-pm_DataPort:Class {
-  abstract = True;
-}
-
-pm_DataIn:Class {
-  abstract = True;
-} :Inheritance (pm_DataIn -> pm_DataPort)
-
-pm_DataSink:Class
-  :Inheritance (pm_DataSink -> pm_DataIn)
-
-pm_DataActivityIn:Class
-  :Inheritance (pm_DataActivityIn -> pm_DataIn)
-
-pm_DataOut:Class {
-  abstract = True;
-} :Inheritance (pm_DataOut -> pm_DataPort)
-
-pm_DataSource:Class
-  :Inheritance (pm_DataSource -> pm_DataOut)
-
-pm_DataActivityOut:Class
-  :Inheritance (pm_DataActivityOut -> pm_DataOut)
-
-##################################################
-##################################################
-
-pm_Owns:Association (pm_Model -> pm_ModelElement) {
-  source_lower_cardinality = 1;
-  source_upper_cardinality = 1;
-}
-
-##################################################
-
-pm_CtrlFlow:Association (pm_CtrlPort -> pm_CtrlPort)
-
-##################################################
-
-pm_HasCtrlIn:Association (pm_Activity -> pm_CtrlIn) {
-    source_upper_cardinality = 1;
-    target_lower_cardinality = 1;
-}
-
-pm_HasCtrlOut:Association (pm_Activity -> pm_CtrlOut) {
-    source_upper_cardinality = 1;
-    target_lower_cardinality = 1;
-}
-
-pm_HasDataIn:Association (pm_Activity -> pm_DataIn) {
-    source_upper_cardinality = 1;
-}
-
-pm_HasDataOut:Association (pm_Activity -> pm_DataOut) {
-    source_upper_cardinality = 1;
-}
-
-##################################################
-
-pm_DataFlowIn:Association (pm_DataOut -> pm_Artefact) {
-    source_lower_cardinality = 1;
-    target_lower_cardinality = 1;
-}
-
-pm_DataFlowOut:Association (pm_Artefact -> pm_DataIn) {
-    source_lower_cardinality = 1;
-    target_lower_cardinality = 1;
-}
-
-##################################################
-##################################################
-
-has_source_and_sink:GlobalConstraint {
-    # There should be at least one source and sink control port
-    constraint = ```
-        contains_source = len(get_all_instances("pm_CtrlSource")) > 0
-        contains_sink = len(get_all_instances("pm_CtrlSink")) > 0
-
-        # return constraint      
-        contains_source and contains_sink
-    ```;
-}
-
-##################################################

examples/ftg_pm_pt/pm/metamodels/mm_runtime.od

@@ -1,38 +0,0 @@
-##################################################
-
-pm_State:Class {
-  abstract = True;
-}
-
-##################################################
-
-pm_ArtefactState:Class 
-  :Inheritance (pm_ArtefactState -> pm_State)
-
-pm_ArtefactState_data:AttributeLink (pm_ArtefactState -> Bytes) {
-    name = "data";
-    optional = False;
-}
-
-##################################################
-
-pm_CtrlPortState:Class 
-  :Inheritance (pm_CtrlPortState -> pm_State)
-
-pm_CtrlPortState_active:AttributeLink (pm_CtrlPortState -> Boolean) {
-    name = "active";
-    optional = False;
-}
-
-##################################################
-##################################################
-
-pm_Of:Association (pm_State -> pm_Stateful) {
-  # one-to-one
-  source_lower_cardinality = 1;
-  source_upper_cardinality = 1;
-  target_lower_cardinality = 1;
-  target_upper_cardinality = 1;
-}
-
-##################################################

examples/ftg_pm_pt/pt/metamodels/mm_design.od

@@ -1,109 +0,0 @@
-##################################################
-
-pt_Event:Class {
-  abstract = True;
-}
-
-##################################################
-
-pt_Activity:Class {
-  abstract = True;
-} :Inheritance (pt_Activity -> pt_Event)
-
-pt_StartActivity:Class {
-  # A start activity can only be related to a control in port
-  constraint = ```
-      correct_related = True
-
-      port = get_target(get_outgoing(this, "pt_RelatesTo")[0])
-      correct_related = port in [uid for _, uid in get_all_instances("pm_CtrlIn")]
-      correct_related
-  ```;
-
-} :Inheritance (pt_StartActivity -> pt_Activity)
-
-pt_EndActivity:Class {
-  # A end activity can only be related to a control out port
-  constraint = ```
-    correct_related = True
-
-    port = get_target(get_outgoing(this, "pt_RelatesTo")[0])
-    correct_related = port in [uid for _, uid in get_all_instances("pm_CtrlOut")]
-
-    correct_related
-  ```;
-
-} :Inheritance (pt_EndActivity -> pt_Activity)
-
-##################################################
-
-pt_StartTrace:Class
-  :Inheritance (pt_StartTrace -> pt_Event)
-
-pt_EndTrace:Class
-  :Inheritance (pt_EndTrace -> pt_Event)
-
-##################################################
-
-pt_Artefact:Class
-  :Inheritance (pt_Artefact -> pt_Event)
-
-pt_Artefact_data:AttributeLink (pt_Artefact -> Bytes) {
-  name = "data";
-  optional = False;
-}
-
-##################################################
-##################################################
-
-pt_IsFollowedBy:Association (pt_Event -> pt_Event) {
-  source_upper_cardinality = 1;
-  target_upper_cardinality = 1;
-}
-
-##################################################
-
-pt_RelatesTo:Association (pt_Activity -> pm_CtrlPort) {
-  source_upper_cardinality = 1;
-  target_lower_cardinality = 1;
-  target_upper_cardinality = 1;
-}
-
-pt_Consumes:Association (pt_Artefact -> pt_StartActivity) {
-  source_upper_cardinality = 1;
-  target_lower_cardinality = 1;
-  target_upper_cardinality = 1;
-}
-
-pt_Produces:Association (pt_EndActivity -> pt_Artefact) {
-  source_lower_cardinality = 1;
-  source_upper_cardinality = 1;
-  target_upper_cardinality = 1;
-}
-
-##################################################
-
-pt_Starts:Association (pt_StartTrace -> pm_Model) {
-  source_upper_cardinality = 1;
-  target_lower_cardinality = 1;
-  target_upper_cardinality = 1;
-}
-
-pt_Ends:Association (pt_EndTrace -> pm_Model) {
-  source_upper_cardinality = 1;
-  target_lower_cardinality = 1;
-  target_upper_cardinality = 1;
-}
-##################################################
-
-pt_PrevVersion:Association (pt_Artefact -> pt_Artefact) {
-  source_upper_cardinality = 1;
-  target_upper_cardinality = 1;
-}
-
-pt_BelongsTo:Association (pt_Artefact -> pm_Artefact) {
-  target_lower_cardinality = 1;
-  target_upper_cardinality = 1;
-}
-
-##################################################

examples/ftg_pm_pt/runner.py

@@ -1,162 +0,0 @@
-import re
-
-from state.devstate import DevState
-from bootstrap.scd import bootstrap_scd
-from util import loader
-from transformation.rule import RuleMatcherRewriter
-from transformation.ramify import ramify
-from concrete_syntax.graphviz import renderer as graphviz
-from concrete_syntax.graphviz.make_url import make_url
-from concrete_syntax.plantuml import renderer as plantuml
-from concrete_syntax.plantuml.make_url import make_url as plant_make_url
-from api.od import ODAPI
-import os
-from os import listdir
-from os.path import isfile, join
-import importlib.util
-from util.module_to_dict import module_to_dict
-from examples.ftg_pm_pt import help_functions
-
-from examples.ftg_pm_pt.ftg_pm_pt import FtgPmPt
-
-
-
-class FtgPmPtRunner:
-
-    def __init__(self, model: FtgPmPt, composite_linkage: dict | None = None):
-        self.model = model
-        self.ram_mm = ramify(self.model.state, self.model.meta_model)
-        self.rules = self.load_rules()
-        self.packages = None
-        self.composite_linkage = composite_linkage
-
-    def load_rules(self):
-        return loader.load_rules(
-            self.model.state,
-            lambda rule_name, kind: os.path.join(
-                os.path.dirname(__file__),
-                f"operational_semantics/r_{rule_name}_{kind}.od"
-            ),
-            self.ram_mm,
-            ["connect_process_trace", "trigger_ctrl_flow", "exec_activity", "exec_composite_activity"]
-        )
-
-    def set_packages(self, packages: str | dict, is_path: bool):
-        if not is_path:
-            self.packages = packages
-            return
-
-        self.packages = self.parse_packages(packages)
-
-    def parse_packages(self, packages_path: str) -> dict:
-        return self.collect_functions_from_packages(packages_path, packages_path)
-
-    def collect_functions_from_packages(self, base_path, current_path):
-        functions_dict = {}
-
-        for entry in listdir(current_path):
-            entry_path = join(current_path, entry)
-
-            if isfile(entry_path) and entry.endswith(".py"):
-                module_name = self.convert_path_to_module_name(base_path, entry_path)
-                module = self.load_module_from_file(entry_path)
-
-                for func_name, func in module_to_dict(module).items():
-                    functions_dict[f"{module_name}.{func_name}"] = func
-
-            elif not isfile(entry_path):
-                nested_functions = self.collect_functions_from_packages(base_path, entry_path)
-                functions_dict.update(nested_functions)
-
-        return functions_dict
-
-    @staticmethod
-    def convert_path_to_module_name(base_path, file_path):
-        return file_path.replace(base_path, "").replace(".py", "").replace("/", "")
-
-    @staticmethod
-    def load_module_from_file(file_path):
-        spec = importlib.util.spec_from_file_location("", file_path)
-        module = importlib.util.module_from_spec(spec)
-        spec.loader.exec_module(module)
-        return module
-
-    def create_matcher(self):
-        packages = module_to_dict(help_functions)
-
-        if self.packages:
-            packages.update({ "packages": self.packages })
-
-        if self.composite_linkage:
-            packages.update({ "composite_linkage": self.composite_linkage })
-
-        matcher_rewriter = RuleMatcherRewriter(
-            self.model.state, self.model.meta_model, self.ram_mm, eval_context=packages
-        )
-        return matcher_rewriter
-
-    def visualize_model(self):
-        print(make_url(graphviz.render_object_diagram(self.model.state, self.model.model, self.model.meta_model)))
-        print(plant_make_url(plantuml.render_object_diagram(self.model.state, self.model.model, self.model.meta_model)))
-
-    @staticmethod
-    def __extract_artefact_info(od, pt_art):
-        """Extract artefact metadata and data."""
-        data = od.get_slot_value(pt_art, "data")
-        pm_art = od.get_name(od.get_target(od.get_outgoing(pt_art, "pt_BelongsTo")[0]))
-        has_prev_version = bool(od.get_outgoing(pt_art, "pt_PrevVersion"))
-        is_last_version = not od.get_incoming(pt_art, "pt_PrevVersion")
-        return {
-            "Artefact Name": pm_art,
-            "Data": data,
-            "Has previous version": has_prev_version,
-            "Is last version": is_last_version
-        }
-
-    def __extract_inputs(self, od, event_node):
-        """Extract all consumed artefacts for an event."""
-        return [
-            self.__extract_artefact_info(od, od.get_source(consumes))
-            for consumes in od.get_incoming(event_node, "pt_Consumes")
-        ]
-
-    def __extract_outputs(self, od, event_node):
-        """Extract all produced artefacts for an event."""
-        return [
-            self.__extract_artefact_info(od, od.get_target(produces))
-            for produces in od.get_outgoing(event_node, "pt_Produces")
-        ]
-
-    @staticmethod
-    def to_snake_case(experiment_type):
-        # Finds uppercase letters that are not at the start of the string.
-        # Example: AtomicExperiment -> atomic_experiment
-        return re.sub(r'(?<!^)(?=[A-Z])', '_', experiment_type).lower()
-
-    def run(self, debug_flag: bool = False):
-        matcher = self.create_matcher()
-
-        rule_performed = True
-        while rule_performed:
-
-            # Loop over all the rules first in order priority
-            for i, (rule_name, rule) in enumerate(self.rules.items()):
-                rule_performed = False
-
-                result = matcher.exec_on_first_match(
-                    self.model.model, rule, rule_name, in_place=True
-                )
-
-                # If the rule cannot be executed go to the next rule
-                if not result:
-                    continue
-
-                rule_performed = True
-                self.model.model, lhs_match, _ = result
-
-                if debug_flag:
-                    print(f"Match: {lhs_match}")
-                    self.visualize_model()
-
-                # If a rule is performed, break and start loping over the rules from the beginning
-                break

examples/geraniums/geraniums_renderer.j2

@@ -1,34 +0,0 @@
-digraph G {
-    rankdir=LR;
-    center=true;
-    margin=1;
-    nodesep=1;
-
-    node [fontname="Arial", fontsize=10, shape=box, style=filled, fillcolor=white];
-
-    // Geraniums
-    {% for id, name, flowering in geraniums %}
-    g{{ id }} [
-        label="geranium: {{ name }}\n({{ 'flowering' if flowering else 'not flowering' }})",
-        shape=ellipse,
-        fillcolor="{{ 'lightpink' if flowering else 'lightgray' }}",
-        fontcolor=black
-    ];
-    {% endfor %}
-
-    // Pots
-    {% for id, name, cracked in pots %}
-    p{{ id }} [
-        label="pot: {{ name }}\n({{ 'cracked' if cracked else 'pristine' }})",
-        shape=box,
-        fillcolor="{{ 'mistyrose' if cracked else 'lightgreen' }}",
-        fontcolor=black,
-        style="filled,bold"
-    ];
-    {% endfor %}
-
-    // Connections: geranium -> pot
-    {% for source, target in planted %}
-    g{{ source }} -> p{{ target }};
-    {% endfor %}
-}

examples/geraniums/metamodels/mm.od

@@ -1,9 +0,0 @@
-class Geranium {
-    Boolean flowering;
-}
-
-class Pot {
-    Boolean cracked;
-}
-
-association Planted [0..*] Geranium -> Pot [1..1]

examples/geraniums/models/eval_context.py

@@ -1,44 +0,0 @@
-import os
-
-from jinja2 import Environment, FileSystemLoader
-
-from api.od import ODAPI
-from framework.conformance import eval_context_decorator
-
-
-@eval_context_decorator
-def _render_geraniums_dot(od: ODAPI, file: str) -> str:
-    __DIR__ = os.path.dirname(__file__)
-    env = Environment(
-        loader=FileSystemLoader(
-            __DIR__
-        )
-    )
-    env.trim_blocks = True
-    env.lstrip_blocks = True
-    template_dot = env.get_template("geraniums_renderer.j2")
-
-    id_count = 0
-    id_map = {}
-    render = {"geraniums": [], "pots": [], "planted": []}
-
-    for name, uuid in od.get_all_instances("Geranium"):
-        render["geraniums"].append((id_count, name, od.get_slot_value(uuid, "flowering")))
-        id_map[uuid] = id_count
-        id_count += 1
-
-    for name, uuid in od.get_all_instances("Pot"):
-        render["pots"].append((id_count, name, od.get_slot_value(uuid, "cracked")))
-        id_map[uuid] = id_count
-        id_count += 1
-
-    for name, uuid in od.get_all_instances("Planted"):
-        render["planted"].append((id_map[od.get_source(uuid)], id_map[od.get_target(uuid)]))
-
-    with open(file, "w", encoding="utf-8") as f_dot:
-        f_dot.write(template_dot.render(**render))
-    return ""
-
-eval_context = {
-    "render_geraniums_dot": _render_geraniums_dot,
-}

examples/geraniums/models/example1.od

@@ -1,17 +0,0 @@
-f1:Geranium {
-    flowering = True;
-}
-f2:Geranium {
-    flowering = False;
-}
-f3:Geranium {
-    flowering = True;
-}
-
-p1:Pot {
-    cracked = True;
-}
-
-:Planted (f1 -> p1)
-:Planted (f2 -> p1)
-:Planted (f3 -> p1)

examples/geraniums/models/example2.od

@@ -1,47 +0,0 @@
-f1:Geranium {
-    flowering = True;
-}
-f2:Geranium {
-    flowering = True;
-}
-f3:Geranium {
-    flowering = False;
-}
-
-p1:Pot {
-    cracked = True;
-}
-
-:Planted (f1 -> p1)
-:Planted (f2 -> p1)
-:Planted (f3 -> p1)
-
-
-
-
-f4:Geranium {
-    flowering = True;
-}
-p2:Pot {
-    cracked = True;
-}
-:Planted (f4 -> p2)
-
-
-
-f5:Geranium {
-    flowering = True;
-}
-p3:Pot {
-    cracked = False;
-}
-:Planted (f5 -> p3)
-
-
-f6:Geranium {
-    flowering = False;
-}
-p4:Pot {
-    cracked = True;
-}
-:Planted (f6 -> p4)

examples/geraniums/renderer.py

@@ -1,45 +0,0 @@
-import os
-
-from jinja2 import Environment, FileSystemLoader
-
-from api.od import ODAPI
-from concrete_syntax.graphviz.make_url import show_graphviz
-from concrete_syntax.graphviz.renderer import make_graphviz_id
-
-try:
-    import graphviz
-    HAVE_GRAPHVIZ = True
-except ImportError:
-    HAVE_GRAPHVIZ = False
-
-def render_geraniums_dot(od: ODAPI, file: str) -> str:
-    __DIR__ = os.path.dirname(__file__)
-    env = Environment(
-        loader=FileSystemLoader(
-            __DIR__
-        )
-    )
-    env.trim_blocks = True
-    env.lstrip_blocks = True
-    template_dot = env.get_template("geraniums_renderer.j2")
-
-    id_count = 0
-    id_map = {}
-    render = {"geraniums": [], "pots": [], "planted": []}
-
-    for name, uuid in od.get_all_instances("Geranium"):
-        render["geraniums"].append((id_count, name, od.get_slot_value(uuid, "flowering")))
-        id_map[uuid] = id_count
-        id_count += 1
-
-    for name, uuid in od.get_all_instances("Pot"):
-        render["pots"].append((id_count, name, od.get_slot_value(uuid, "cracked")))
-        id_map[uuid] = id_count
-        id_count += 1
-
-    for name, uuid in od.get_all_instances("Planted"):
-        render["planted"].append((id_map[od.get_source(uuid)], id_map[od.get_target(uuid)]))
-
-    with open(file, "w", encoding="utf-8") as f_dot:
-        f_dot.write(template_dot.render(**render))
-    return ""

examples/geraniums/rules/cracked_pots.od

@@ -1,3 +0,0 @@
-pot:RAM_Pot {
-    RAM_cracked = `get_value(this)`;
-}

examples/geraniums/rules/create_pot.od

@@ -1,3 +0,0 @@
-pot:RAM_Pot {
-    RAM_cracked = `False`;
-}

examples/geraniums/rules/flowering_flowers_in_pot.od

@@ -1,7 +0,0 @@
-pot:RAM_Pot
-
-flower:RAM_Geranium {
-    RAM_flowering = `get_value(this)`;
-}
-
-:RAM_Planted (flower -> pot)

examples/geraniums/rules/repot_flower_in_pot.od

@@ -1,8 +0,0 @@
-pot:RAM_Pot
-new_pot:RAM_Pot
-
-flower:RAM_Geranium {
-    RAM_flowering = `get_value(this)`;
-}
-
-replant:RAM_Planted (flower -> new_pot)

examples/geraniums/runner.py

@@ -1,48 +0,0 @@
-from examples.geraniums.renderer import render_geraniums_dot
-from transformation.ramify import ramify
-
-from models.eval_context import eval_context
-
-from transformation.schedule.rule_scheduler import *
-
-if __name__ == "__main__":
-    import os
-    THIS_DIR = os.path.dirname(__file__)
-
-    # get file contents as string
-    def read_file(filename):
-        with open(THIS_DIR+'/'+filename) as file:
-            return file.read()
-
-
-    state = DevState()
-    scd_mmm = bootstrap_scd(state)
-
-    mm_cs           =         read_file('metamodels/mm.od')
-    m_cs            =         read_file('models/example2.od')
-
-    mm = parser_cd.parse_cd(
-        state,
-        m_text=mm_cs,
-    )
-    m = parser_od.parse_od(
-        state, m_text=m_cs, mm=mm
-    )
-    conf_err = Conformance(
-        state, m, mm
-    ).check_nominal()
-    print(render_conformance_check_result(conf_err))
-    mm_ramified = ramify(state, mm)
-
-    action_generator = RuleScheduler(state, mm, mm_ramified, verbose=True, directory="examples/geraniums", eval_context=eval_context)
-    od = ODAPI(state, m, mm)
-    render_geraniums_dot(od, f"{THIS_DIR}/geraniums.dot")
-
-    # if action_generator.load_schedule(f"petrinet.od"):
-    # if action_generator.load_schedule("schedules/combinatory.drawio"):
-    if action_generator.load_schedule("schedules/schedule.drawio"):
-
-        action_generator.generate_dot("../dot.dot")
-        code, message = action_generator.run(od)
-        print(f"{code}: {message}")
-    render_geraniums_dot(od, f"{THIS_DIR}/geraniums_final.dot")

examples/geraniums/schedules/schedule.drawio

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-        <object label="out" type="data" id="rggt9Ju99cdMwxSiOdaC-8">
-          <mxCell style="rounded=0;whiteSpace=wrap;html=1;fillColor=#d5e8d4;strokeColor=#82b366;" parent="rggt9Ju99cdMwxSiOdaC-5" vertex="1">
-            <mxGeometry x="10" y="60" width="60" height="40" as="geometry" />
-          </mxCell>
-        </object>
-        <mxCell id="rggt9Ju99cdMwxSiOdaC-9" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;" parent="1" source="rgPZtlXADXUwMSGqODkz-15" target="rggt9Ju99cdMwxSiOdaC-4" edge="1">
-          <mxGeometry relative="1" as="geometry" />
-        </mxCell>
-        <mxCell id="rggt9Ju99cdMwxSiOdaC-10" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;jumpStyle=gap;jumpSize=10;" parent="1" source="rgPZtlXADXUwMSGqODkz-49" target="rggt9Ju99cdMwxSiOdaC-7" edge="1">
-          <mxGeometry relative="1" as="geometry">
-            <Array as="points">
-              <mxPoint x="720" y="550" />
-              <mxPoint x="720" y="360" />
-            </Array>
-          </mxGeometry>
-        </mxCell>
-        <mxCell id="rggt9Ju99cdMwxSiOdaC-11" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;" parent="1" source="rggt9Ju99cdMwxSiOdaC-6" target="rgPZtlXADXUwMSGqODkz-12" edge="1">
-          <mxGeometry relative="1" as="geometry">
-            <Array as="points">
-              <mxPoint x="920" y="310" />
-              <mxPoint x="920" y="220" />
-              <mxPoint x="480" y="220" />
-              <mxPoint x="480" y="310" />
-            </Array>
-          </mxGeometry>
-        </mxCell>
-        <mxCell id="rggt9Ju99cdMwxSiOdaC-12" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;jumpStyle=gap;jumpSize=10;" parent="1" source="rgPZtlXADXUwMSGqODkz-16" target="gjxSdUMfFO3v8k7oyOzM-11" edge="1">
-          <mxGeometry relative="1" as="geometry">
-            <Array as="points">
-              <mxPoint x="700" y="360" />
-              <mxPoint x="700" y="480" />
-            </Array>
-          </mxGeometry>
-        </mxCell>
-        <mxCell id="nF2FpsghIUv3jzvNKQr9-1" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;" edge="1" parent="1" source="rgPZtlXADXUwMSGqODkz-22" target="rgPZtlXADXUwMSGqODkz-12">
-          <mxGeometry relative="1" as="geometry" />
-        </mxCell>
-      </root>
-    </mxGraphModel>
-  </diagram>
-</mxfile>

examples/model_transformation/woods.plantuml

@@ -0,0 +1,139 @@
+package "DSL Meta-Model" {
+class "Bear" as 00000000_0000_0000_0000_00000000046d {
+}
+abstract class "Animal" as 00000000_0000_0000_0000_000000000474 {
+}
+class "Man" as 00000000_0000_0000_0000_000000000491 {
+  weight : Integer
+}
+
+00000000_0000_0000_0000_000000000474 <|-- 00000000_0000_0000_0000_000000000491
+00000000_0000_0000_0000_000000000474 <|-- 00000000_0000_0000_0000_00000000046d
+
+00000000_0000_0000_0000_000000000491 " " --> "1 .. *" 00000000_0000_0000_0000_000000000474 : afraidOf
+}
+package "Int Meta-Model" {
+class "Integer" as 00000000_0000_0000_0000_000000000094 {
+}
+
+
+}
+package "RAMified DSL Meta-Model" {
+class "RAM_Bear" as 00000000_0000_0000_0000_0000000005bb {
+}
+class "RAM_Animal" as 00000000_0000_0000_0000_0000000005c5 {
+}
+class "RAM_Man" as 00000000_0000_0000_0000_0000000005cf {
+  RAM_weight : ActionCode
+}
+
+00000000_0000_0000_0000_0000000005c5 <|-- 00000000_0000_0000_0000_0000000005cf
+00000000_0000_0000_0000_0000000005c5 <|-- 00000000_0000_0000_0000_0000000005bb
+
+00000000_0000_0000_0000_0000000005cf " " --> "0 .. *" 00000000_0000_0000_0000_0000000005c5 : RAM_afraidOf
+}
+package "RAMified Int Meta-Model" {
+class "RAM_Integer" as 00000000_0000_0000_0000_00000000064c {
+}
+
+
+}
+00000000_0000_0000_0000_0000000005bb ..> 00000000_0000_0000_0000_00000000046d #line:green;text:green : RAMifies
+00000000_0000_0000_0000_0000000005c5 ..> 00000000_0000_0000_0000_000000000474 #line:green;text:green : RAMifies
+00000000_0000_0000_0000_0000000005cf ..> 00000000_0000_0000_0000_000000000491 #line:green;text:green : RAMifies
+00000000_0000_0000_0000_0000000005cf::RAM_weight ..> 00000000_0000_0000_0000_000000000491::weight #line:green;text:green : RAMifies
+00000000_0000_0000_0000_00000000064c ..> 00000000_0000_0000_0000_000000000094 #line:green;text:green : RAMifies
+package "LHS" {
+map "scaryAnimal : RAM_Animal" as 00000000_0000_0000_0000_00000000068a {
+}
+map "man : RAM_Man" as 00000000_0000_0000_0000_00000000066d {
+RAM_weight => `v > 60`
+}
+
+00000000_0000_0000_0000_00000000066d -> 00000000_0000_0000_0000_00000000068a : :RAM_afraidOf
+}
+00000000_0000_0000_0000_00000000068a ..> 00000000_0000_0000_0000_0000000005c5 #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_00000000066d ..> 00000000_0000_0000_0000_0000000005cf #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_00000000066d::RAM_weight ..> 00000000_0000_0000_0000_0000000005cf::RAM_weight #line:blue;text:blue : instanceOf
+
+package "RHS" {
+map "man : RAM_Man" as 00000000_0000_0000_0000_000000000699 {
+RAM_weight => `v + 5`
+}
+map "bill : RAM_Man" as 00000000_0000_0000_0000_0000000006b6 {
+RAM_weight => `100`
+}
+
+00000000_0000_0000_0000_0000000006b6 -> 00000000_0000_0000_0000_000000000699 : :RAM_afraidOf
+}
+00000000_0000_0000_0000_000000000699 ..> 00000000_0000_0000_0000_0000000005cf #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_000000000699::RAM_weight ..> 00000000_0000_0000_0000_0000000005cf::RAM_weight #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_0000000006b6 ..> 00000000_0000_0000_0000_0000000005cf #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_0000000006b6::RAM_weight ..> 00000000_0000_0000_0000_0000000005cf::RAM_weight #line:blue;text:blue : instanceOf
+
+package "Model (before rewrite)" {
+map "bear2 : Bear" as 00000000_0000_0000_0000_000000000597 {
+}
+map "bear1 : Bear" as 00000000_0000_0000_0000_000000000590 {
+}
+map "george : Man" as 00000000_0000_0000_0000_000000000573 {
+weight => 80
+}
+
+00000000_0000_0000_0000_000000000573 -> 00000000_0000_0000_0000_000000000590 : :afraidOf
+00000000_0000_0000_0000_000000000573 -> 00000000_0000_0000_0000_000000000597 : :afraidOf
+}
+00000000_0000_0000_0000_000000000597 ..> 00000000_0000_0000_0000_00000000046d #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_000000000590 ..> 00000000_0000_0000_0000_00000000046d #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_000000000573 ..> 00000000_0000_0000_0000_000000000491 #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_000000000573::weight ..> 00000000_0000_0000_0000_000000000491::weight #line:blue;text:blue : instanceOf
+
+00000000_0000_0000_0000_00000000068a ..> 00000000_0000_0000_0000_000000000590 #line:red;line.dotted;text:red : matchedWith
+00000000_0000_0000_0000_00000000066d ..> 00000000_0000_0000_0000_000000000573 #line:red;line.dotted;text:red : matchedWith
+00000000_0000_0000_0000_00000000066d::RAM_weight ..> 00000000_0000_0000_0000_000000000573::weight #line:red;line.dotted;text:red : matchedWith
+package "Model (after rewrite 0)" {
+map "bear2 : Bear" as 00000000_0000_0000_0000_0000000006db {
+}
+map "george : Man" as 00000000_0000_0000_0000_0000000006e9 {
+weight => 85
+}
+map "bill0 : Man" as 00000000_0000_0000_0000_000000000723 {
+weight => 100
+}
+
+00000000_0000_0000_0000_000000000723 -> 00000000_0000_0000_0000_0000000006e9 : :afraidOf
+00000000_0000_0000_0000_0000000006e9 -> 00000000_0000_0000_0000_0000000006db : :afraidOf
+}
+00000000_0000_0000_0000_000000000699 ..> 00000000_0000_0000_0000_0000000006e9 #line:red;line.dotted;text:red : matchedWith
+00000000_0000_0000_0000_000000000699::RAM_weight ..> 00000000_0000_0000_0000_0000000006e9::weight #line:red;line.dotted;text:red : matchedWith
+00000000_0000_0000_0000_0000000006b6 ..> 00000000_0000_0000_0000_000000000723 #line:red;line.dotted;text:red : matchedWith
+00000000_0000_0000_0000_0000000006db ..> 00000000_0000_0000_0000_00000000046d #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_0000000006e9 ..> 00000000_0000_0000_0000_000000000491 #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_0000000006e9::weight ..> 00000000_0000_0000_0000_000000000491::weight #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_000000000723 ..> 00000000_0000_0000_0000_000000000491 #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_000000000723::weight ..> 00000000_0000_0000_0000_000000000491::weight #line:blue;text:blue : instanceOf
+
+00000000_0000_0000_0000_00000000068a ..> 00000000_0000_0000_0000_000000000597 #line:orange;line.dotted;text:orange : matchedWith
+00000000_0000_0000_0000_00000000066d ..> 00000000_0000_0000_0000_000000000573 #line:orange;line.dotted;text:orange : matchedWith
+00000000_0000_0000_0000_00000000066d::RAM_weight ..> 00000000_0000_0000_0000_000000000573::weight #line:orange;line.dotted;text:orange : matchedWith
+package "Model (after rewrite 1)" {
+map "bear1 : Bear" as 00000000_0000_0000_0000_000000000747 {
+}
+map "george : Man" as 00000000_0000_0000_0000_00000000074e {
+weight => 85
+}
+map "bill0 : Man" as 00000000_0000_0000_0000_000000000788 {
+weight => 100
+}
+
+00000000_0000_0000_0000_000000000788 -> 00000000_0000_0000_0000_00000000074e : :afraidOf
+00000000_0000_0000_0000_00000000074e -> 00000000_0000_0000_0000_000000000747 : :afraidOf
+}
+00000000_0000_0000_0000_000000000699 ..> 00000000_0000_0000_0000_00000000074e #line:orange;line.dotted;text:orange : matchedWith
+00000000_0000_0000_0000_000000000699::RAM_weight ..> 00000000_0000_0000_0000_00000000074e::weight #line:orange;line.dotted;text:orange : matchedWith
+00000000_0000_0000_0000_0000000006b6 ..> 00000000_0000_0000_0000_000000000788 #line:orange;line.dotted;text:orange : matchedWith
+00000000_0000_0000_0000_000000000747 ..> 00000000_0000_0000_0000_00000000046d #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_00000000074e ..> 00000000_0000_0000_0000_000000000491 #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_00000000074e::weight ..> 00000000_0000_0000_0000_000000000491::weight #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_000000000788 ..> 00000000_0000_0000_0000_000000000491 #line:blue;text:blue : instanceOf
+00000000_0000_0000_0000_000000000788::weight ..> 00000000_0000_0000_0000_000000000491::weight #line:blue;text:blue : instanceOf

examples/model_transformation/woods.py

@@ -0,0 +1,245 @@
+# Model transformation experiment
+
+from state.devstate import DevState
+from bootstrap.scd import bootstrap_scd
+from uuid import UUID
+from services.scd import SCD
+from framework.conformance import Conformance
+from services.od import OD
+from transformation.matcher import match_od
+from transformation.ramify import ramify
+from transformation.cloner import clone_od
+from transformation import rewriter
+from services.bottom.V0 import Bottom
+from services.primitives.integer_type import Integer
+from concrete_syntax.plantuml import renderer as plantuml
+from concrete_syntax.plantuml.make_url import make_url as make_plantuml_url
+from concrete_syntax.textual_od import parser, renderer
+
+def main():
+    state = DevState()
+    root = state.read_root() # id: 0
+
+    # Meta-meta-model: a class diagram that describes the language of class diagrams
+    scd_mmm_id = bootstrap_scd(state)
+    int_mm_id = UUID(state.read_value(state.read_dict(state.read_root(), "Integer")))
+    string_mm_id = UUID(state.read_value(state.read_dict(state.read_root(), "String")))
+
+    # conf = Conformance(state, scd_mmm_id, scd_mmm_id)
+    # print("Conformance SCD_MM -> SCD_MM?", conf.check_nominal(log=True))
+    # print("--------------------------------------")
+    # print(renderer.render_od(state, scd_mmm_id, scd_mmm_id, hide_names=True))
+    # print("--------------------------------------")
+
+    # Create DSL MM with parser
+    dsl_mm_cs = """
+        # Integer:ModelRef
+        Bear:Class
+        Animal:Class {
+            abstract = True;
+        }
+        Man:Class {
+            lower_cardinality = 1;
+            upper_cardinality = 2;
+            constraint = ```
+                get_value(get_slot(this, "weight")) > 20
+            ```;
+        }
+        Man_weight:AttributeLink (Man -> Integer) {
+            name = "weight";
+            optional = False;
+            constraint = ```
+                # this is the same constraint as above, but this time, part of the attributelink itself (and thus shorter)
+                tgt = get_target(this)
+                tgt_type = get_type_name(tgt)
+                get_value(tgt) > 20
+            ```;
+        }
+        afraidOf:Association (Man -> Animal) {
+            target_lower_cardinality = 1;
+        }
+        :Inheritance (Man -> Animal)
+        :Inheritance (Bear -> Animal)
+
+        not_too_fat:GlobalConstraint {
+            constraint = ```
+                # total weight of all men low enough
+                total_weight = 0
+                for man_name, man_id in get_all_instances("Man"):
+                    total_weight += get_value(get_slot(man_id, "weight"))
+                total_weight < 85
+            ```;
+        }
+    """
+    dsl_mm_id = parser.parse_od(state, dsl_mm_cs, mm=scd_mmm_id)
+    
+    # Create DSL M with parser
+    dsl_m_cs = """
+        george:Man {
+            weight = 80;
+        }
+        bear1:Bear
+        bear2:Bear
+        :afraidOf (george -> bear1)
+        :afraidOf (george -> bear2)
+    """
+    dsl_m_id = parser.parse_od(state, dsl_m_cs, mm=dsl_mm_id)
+
+    # print("DSL MM:")
+    # print("--------------------------------------")
+    # print(renderer.render_od(state, dsl_mm_id, scd_mmm_id, hide_names=True))
+    # print("--------------------------------------")
+
+    conf = Conformance(state, dsl_mm_id, scd_mmm_id)
+    print("Conformance DSL_MM -> SCD_MM?", conf.check_nominal(log=True))
+
+    # print("DSL M:")
+    # print("--------------------------------------")
+    # print(renderer.render_od(state, dsl_m_id, dsl_mm_id, hide_names=True))
+    # print("--------------------------------------")
+
+    conf = Conformance(state, dsl_m_id, dsl_mm_id)
+    print("Conformance DSL_M -> DSL_MM?", conf.check_nominal(log=True))
+
+    # RAMify MM
+    prefix = "RAM_" # all ramified types can be prefixed to distinguish them a bit more
+    ramified_mm_id = ramify(state, dsl_mm_id, prefix)
+    ramified_int_mm_id = ramify(state, int_mm_id, prefix)
+
+    # LHS - pattern to match
+
+    # TODO: enable more powerful constraints
+    lhs_cs = f"""
+        # object to match
+        man:{prefix}Man {{
+            # match only men heavy enough
+            {prefix}weight = ```
+                get_value(this) > 60
+            ```;
+        }}
+
+        # object to delete
+        scaryAnimal:{prefix}Animal
+
+        # link to delete
+        manAfraidOfAnimal:{prefix}afraidOf (man -> scaryAnimal)
+    """
+    lhs_id = parser.parse_od(state, lhs_cs, mm=ramified_mm_id)
+
+
+    conf = Conformance(state, lhs_id, ramified_mm_id)
+    print("Conformance LHS_M -> RAM_DSL_MM?", conf.check_nominal(log=True))
+
+    # RHS of our rule
+
+    # TODO: enable more powerful actions
+    rhs_cs = f"""
+        # matched object
+        man:{prefix}Man {{
+            # man gains weight
+            {prefix}weight = `get_value(this) + 5`;
+        }}
+
+        # object to create
+        bill:{prefix}Man {{
+            {prefix}weight = `100`;
+        }}
+
+        # link to create
+        billAfraidOfMan:{prefix}afraidOf (bill -> man)
+    """
+    rhs_id = parser.parse_od(state, rhs_cs, mm=ramified_mm_id)
+
+    conf = Conformance(state, rhs_id, ramified_mm_id)
+    print("Conformance RHS_M -> RAM_DSL_MM?", conf.check_nominal(log=True))
+
+    def render_ramification():
+        uml = (""
+            # Render original and RAMified meta-models
+            + plantuml.render_package("DSL Meta-Model", plantuml.render_class_diagram(state, dsl_mm_id))
+            + plantuml.render_package("Int Meta-Model", plantuml.render_class_diagram(state, int_mm_id))
+            + plantuml.render_package("RAMified DSL Meta-Model", plantuml.render_class_diagram(state, ramified_mm_id))
+            + plantuml.render_package("RAMified Int Meta-Model", plantuml.render_class_diagram(state, ramified_int_mm_id))
+
+            # Render RAMification traceability links
+            + plantuml.render_trace_ramifies(state, dsl_mm_id, ramified_mm_id)
+            + plantuml.render_trace_ramifies(state, int_mm_id, ramified_int_mm_id)
+        )
+
+        return uml
+
+    def render_lhs_rhs():
+        uml = render_ramification()
+        # Render pattern
+        uml += plantuml.render_package("LHS", plantuml.render_object_diagram(state, lhs_id, ramified_mm_id))
+        uml += plantuml.render_trace_conformance(state, lhs_id, ramified_mm_id)
+
+        # Render pattern
+        uml += plantuml.render_package("RHS", plantuml.render_object_diagram(state, rhs_id, ramified_mm_id))
+        uml += plantuml.render_trace_conformance(state, rhs_id, ramified_mm_id)
+        return uml
+
+
+    def render_all_matches():
+        uml = render_lhs_rhs()
+        # Render host graph (before rewriting)
+        uml += plantuml.render_package("Model (before rewrite)", plantuml.render_object_diagram(state, dsl_m_id, dsl_mm_id))
+        # Render conformance
+        uml += plantuml.render_trace_conformance(state, dsl_m_id, dsl_mm_id)
+
+        print("matching...")
+        generator = match_od(state, dsl_m_id, dsl_mm_id, lhs_id, ramified_mm_id)
+        for match, color in zip(generator, ["red", "orange"]):
+            print("\nMATCH:\n", match)
+
+            # Render every match
+            uml += plantuml.render_trace_match(state, match, lhs_id, dsl_m_id, color)
+
+        print("DONE")
+        return uml
+
+    def render_rewrite():
+        uml = render_lhs_rhs()
+
+        # Render host graph (before rewriting)
+        uml += plantuml.render_package("Model (before rewrite)", plantuml.render_object_diagram(state, dsl_m_id, dsl_mm_id))
+        # Render conformance
+        uml += plantuml.render_trace_conformance(state, dsl_m_id, dsl_mm_id)
+
+        generator = match_od(state, dsl_m_id, dsl_mm_id, lhs_id, ramified_mm_id)
+        for i, (match, color) in enumerate(zip(generator, ["red", "orange"])):
+            uml += plantuml.render_trace_match(state, match, lhs_id, dsl_m_id, color)
+
+            # rewrite happens in-place (which sucks), so we will only modify a clone:
+            snapshot_dsl_m_id = clone_od(state, dsl_m_id, dsl_mm_id)
+            rewriter.rewrite(state, lhs_id, rhs_id, ramified_mm_id, match, snapshot_dsl_m_id, dsl_mm_id)
+
+            conf = Conformance(state, snapshot_dsl_m_id, dsl_mm_id)
+            print(f"Conformance DSL_M (after rewrite {i}) -> DSL_MM?", conf.check_nominal(log=True))
+
+            # Render host graph (after rewriting)
+            uml += plantuml.render_package(f"Model (after rewrite {i})", plantuml.render_object_diagram(state, snapshot_dsl_m_id, dsl_mm_id))
+            # Render match
+            uml += plantuml.render_trace_match(state, match, rhs_id, snapshot_dsl_m_id, color)
+            # Render conformance
+            uml += plantuml.render_trace_conformance(state, snapshot_dsl_m_id, dsl_mm_id)
+
+        return uml
+
+    # plantuml_str = render_ramification()
+    # plantuml_str = render_all_matches()
+    plantuml_str = render_rewrite()
+
+    print()
+    print("==============================================")
+    print("BEGIN PLANTUML")
+    print("==============================================")
+
+    print(make_plantuml_url(plantuml_str))
+
+    print("==============================================")
+    print("END PLANTUML")
+    print("==============================================")
+
+if __name__ == "__main__":
+    main()

examples/petrinet/models/m_example_simple.od

@@ -1,8 +1,5 @@
 p0:PNPlace
 p1:PNPlace
-p2:PNPlace
-p3:PNPlace
-p4:PNPlace
 
 t0:PNTransition
 :arc (p0 -> t0)
@@ -10,12 +7,4 @@ t0:PNTransition
 
 t1:PNTransition
 :arc (p1 -> t1)
-:arc (t1 -> p2)
-
-t2:PNTransition
-:arc (p2 -> t2)
-:arc (t2 -> p0)
-
-
-t3:PNTransition
-:arc (t3 -> p4)
+:arc (t1 -> p0)

examples/petrinet/models/m_example_simple_rt_initial.od

@@ -9,21 +9,3 @@ p1s:PNPlaceState {
 }
 
 :pn_of (p1s -> p1)
-
-p2s:PNPlaceState {
-  numTokens = 0;
-}
-
-:pn_of (p2s -> p2)
-
-p3s:PNPlaceState {
-  numTokens = 0;
-}
-
-:pn_of (p3s -> p3)
-
-p4s:PNPlaceState {
-  numTokens = 0;
-}
-
-:pn_of (p4s -> p4)

examples/petrinet/models/rules/all_incoming.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `True`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (p -> t)

examples/petrinet/models/rules/all_incomming.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `True`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (p -> t)

examples/petrinet/models/rules/all_outgoing.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `True`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (t -> p)

examples/petrinet/models/rules/increase_outgoing.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `get_value(this) + 1`;
-}
-:RAM_pn_of (ps -> p)
-
-# An outgoing arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (t -> p)

examples/petrinet/models/rules/input_without_token.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `get_value(this) == 0`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (p -> t)

examples/petrinet/models/rules/places.od

@@ -1,3 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace

examples/petrinet/models/rules/reduce_incoming.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `get_value(this) -1`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (p -> t)

examples/petrinet/models/rules/reduce_incomming.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `get_value(this) -1`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (p -> t)

examples/petrinet/models/rules/transition.od

@@ -1 +0,0 @@
-t:RAM_PNTransition

examples/petrinet/models/schedules/combinatory.drawio

@@ -1,526 +0,0 @@
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examples/petrinet/models/schedules/petrinet.od

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-
-outputs:Match{
-    file = "operational_semantics/all_outputs";
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-routput:Rewrite{
-    file = "operational_semantics/all_outputs_increased";
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-
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-p2:Print{
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-    custom = `"succesfully execuded a petrinet transition"`;
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-
-l:Loop
-l2:Loop
-l3:Loop
-
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-:Conn_exec (start -> m) {from="out"; to="in";}
-:Conn_exec (m -> l) {from="success"; to="in";}
-:Conn_exec (l -> nac1) {from="it"; to="in";}
-:Conn_exec (l -> end) {from="out"; to="in";}
-:Conn_exec (nac1 -> l) {from="success"; to="in";}
-:Conn_exec (nac1 -> inputs) {from="fail"; to="in";}
-:Conn_exec (inputs -> l2) {from="success"; to="in";}
-:Conn_exec (inputs -> l2) {from="fail"; to="in";}
-:Conn_exec (l2 -> rinput) {from="it"; to="in";}
-:Conn_exec (rinput -> l2) {from="out"; to="in";}
-:Conn_exec (l2 -> outputs) {from="out"; to="in";}
-:Conn_exec (outputs -> l3) {from="success"; to="in";}
-:Conn_exec (outputs -> l3) {from="fail"; to="in";}
-:Conn_exec (l3 -> routput) {from="it"; to="in";}
-:Conn_exec (routput -> l3) {from="out"; to="in";}
-:Conn_exec (l3 -> p2) {from="out"; to="in";}
-:Conn_exec (p2 -> end) {from="out"; to="in";}
-
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-:Conn_data (m -> l) {from="out"; to="in";}
-:Conn_data (l -> nac1) {from="out"; to="in";}
-:Conn_data (l -> inputs) {from="out"; to="in";}
-:Conn_data (inputs -> l2) {from="out"; to="in";}
-:Conn_data (l2 -> rinput) {from="out"; to="in";}
-:Conn_data (l -> outputs) {from="out"; to="in";}
-:Conn_data (outputs -> l3) {from="out"; to="in";}
-:Conn_data (l3 -> routput) {from="out"; to="in";}

examples/petrinet/models/schedules/petrinet3.drawio

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-            <mxRectangle width="80" height="60" as="alternateBounds" />
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-        </mxCell>
-        <object label="in" type="exec" id="Kt-HEspv_mNIOeUF0m9y-9">
-          <mxCell style="rounded=0;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;" parent="Kt-HEspv_mNIOeUF0m9y-8" vertex="1">
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-          </mxCell>
-        </object>
-        <mxCell id="Kt-HEspv_mNIOeUF0m9y-10" value="Output" style="swimlane;swimlaneHead=0;swimlaneBody=0;fontStyle=0;strokeColor=inherit;connectable=0;fillColor=none;startSize=40;collapsible=0;recursiveResize=1;expand=0;allowArrows=0;autosize=1;rotatable=0;noLabel=1;overflow=hidden;swimlaneLine=0;editable=0;" parent="Kt-HEspv_mNIOeUF0m9y-7" vertex="1">
-          <mxGeometry x="80" width="80" height="60" as="geometry">
-            <mxRectangle width="80" height="60" as="alternateBounds" />
-          </mxGeometry>
-        </mxCell>
-        <object label="%name%: %type%&#xa;%file%" placeholders="1" name="schedule_name" type="Schedule" file="recursion" id="UQ9mEoFXoNfb_A1GJxno-1">
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-        <mxCell id="UQ9mEoFXoNfb_A1GJxno-3" value="Input" style="swimlane;swimlaneHead=0;swimlaneBody=0;fontStyle=0;strokeColor=inherit;connectable=0;fillColor=none;startSize=60;collapsible=0;recursiveResize=1;expand=0;allowArrows=0;autosize=1;rotatable=0;noLabel=1;overflow=hidden;swimlaneLine=0;editable=0;" parent="UQ9mEoFXoNfb_A1GJxno-2" vertex="1">
-          <mxGeometry width="80" height="60" as="geometry">
-            <mxRectangle width="80" height="60" as="alternateBounds" />
-          </mxGeometry>
-        </mxCell>
-        <object label="out" type="exec" id="UQ9mEoFXoNfb_A1GJxno-4">
-          <mxCell style="rounded=0;whiteSpace=wrap;html=1;fillColor=#dae8fc;strokeColor=#6c8ebf;" parent="UQ9mEoFXoNfb_A1GJxno-3" vertex="1">
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-          </mxCell>
-        </object>
-        <mxCell id="UQ9mEoFXoNfb_A1GJxno-5" value="Output" style="swimlane;swimlaneHead=0;swimlaneBody=0;fontStyle=0;strokeColor=inherit;connectable=0;fillColor=none;startSize=40;collapsible=0;recursiveResize=1;expand=0;allowArrows=0;autosize=1;rotatable=0;noLabel=1;overflow=hidden;swimlaneLine=0;editable=0;" parent="UQ9mEoFXoNfb_A1GJxno-2" vertex="1">
-          <mxGeometry x="80" width="80" height="60" as="geometry">
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-        </mxCell>
-        <object label="in" type="exec" id="UQ9mEoFXoNfb_A1GJxno-6">
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-          </mxCell>
-        </object>
-        <mxCell id="UQ9mEoFXoNfb_A1GJxno-8" style="edgeStyle=orthogonalEdgeStyle;rounded=0;orthogonalLoop=1;jettySize=auto;html=1;exitX=1;exitY=0.5;exitDx=0;exitDy=0;entryX=0;entryY=0.5;entryDx=0;entryDy=0;" parent="1" source="UQ9mEoFXoNfb_A1GJxno-6" target="Kt-HEspv_mNIOeUF0m9y-9" edge="1">
-          <mxGeometry relative="1" as="geometry" />
-        </mxCell>
-        <object label="%name%: %type%" placeholders="1" name="action_name" type="Action" ports_exec_in="[&quot;in&quot;]" ports_exec_out="[&quot;out&quot;, &quot;stop&quot;]" ports_data_in="[]" ports_data_out="[]" action="print(f&quot;hello world {globals[&quot;n&quot;]}&quot;)&#xa;globals[&quot;n&quot;] += 1&#xa;if globals[&quot;n&quot;] &gt; 50:&#xa;  var[&quot;output_gate&quot;] = &quot;stop&quot;" init="globals[&quot;n&quot;] = 0" id="v4SniQMLU1hr-XtfmYLd-9">
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-          </mxCell>
-        </object>
-        <mxCell id="v4SniQMLU1hr-XtfmYLd-10" value="" style="shape=tableRow;horizontal=0;swimlaneHead=0;swimlaneBody=0;top=0;left=0;strokeColor=inherit;bottom=0;right=0;dropTarget=0;fontStyle=0;fillColor=none;points=[[0,0.5],[1,0.5]];startSize=0;collapsible=0;recursiveResize=1;expand=0;rounded=0;allowArrows=0;connectable=0;autosize=1;resizeHeight=1;rotatable=0;" vertex="1" parent="v4SniQMLU1hr-XtfmYLd-9">
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-            <mxGeometry x="10" y="10" width="60" height="40" as="geometry" />
-          </mxCell>
-        </object>
-        <object label="stop" type="exec" id="3555_PH_8KkFF3nkISFi-1">
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-      </root>
-    </mxGraphModel>
-  </diagram>
-</mxfile>

examples/petrinet/models/schedules/schedule.od

@@ -1,4 +0,0 @@
-start: Start
-end: End
-
-:Conn_exec (start -> end) {from="tfuy"; to="in";}

examples/petrinet/operational_semantics/all_inputs.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `True`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (p -> t)

examples/petrinet/operational_semantics/all_inputs_reduced.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `get_value(this) -1`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (t -> p)

examples/petrinet/operational_semantics/all_output_places.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `True`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (t -> p)

examples/petrinet/operational_semantics/all_output_places_update.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `set_value(this, get_value(this) + 1)`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (t -> p)

examples/petrinet/operational_semantics/all_outputs.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `True`;
-}
-:RAM_pn_of (ps -> p)
-
-# An outgoing arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (t -> p)

examples/petrinet/operational_semantics/all_outputs_increased.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `get_value(this) + 1`;
-}
-:RAM_pn_of (ps -> p)
-
-# An outgoing arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (t -> p)

examples/petrinet/operational_semantics/input_without_token.od

@@ -1,13 +0,0 @@
-# A place with no tokens:
-
-p:RAM_PNPlace
-ps:RAM_PNPlaceState {
-  RAM_numTokens = `get_value(this) == 0`;
-}
-:RAM_pn_of (ps -> p)
-
-# An incoming arc from that place to our transition:
-
-t:RAM_PNTransition
-
-:RAM_arc (p -> t)

examples/petrinet/operational_semantics/r_fire_transition_lhs.od

@@ -1 +1 @@
-t:RAM_PNTransition
+t:RAM_PNTransition

examples/petrinet/operational_semantics/transition.od

@@ -1 +0,0 @@
-t:RAM_PNTransition

examples/petrinet/petrinet_renderer.j2

@@ -1,12 +0,0 @@
-digraph G {
-  rankdir=LR;
-  center=true;
-  margin=1;
-  nodesep=1;
-  subgraph places {
-    node [fontname=Arial,fontsize=10,shape=circle,fixedsize=true,label="", height=.35,width=.35];
-    {% for place in places %}
-      {{ place[0] }} [label="{{ place[1] }}_{{ place[2] }}"]
-    {% endfor %}
-  }
-}

examples/petrinet/renderer.py

@@ -1,7 +1,3 @@
-import os
-
-from jinja2 import Environment, FileSystemLoader
-
 from api.od import ODAPI
 from concrete_syntax.graphviz.make_url import show_graphviz
 from concrete_syntax.graphviz.renderer import make_graphviz_id
@@ -20,24 +16,13 @@ def render_tokens(num_tokens: int):
     return str(num_tokens)
 
 def render_petri_net_to_dot(od: ODAPI) -> str:
-    env = Environment(
-        loader=FileSystemLoader(
-            os.path.dirname(__file__)
-        )
-    )
-    env.trim_blocks = True
-    env.lstrip_blocks = True
-    template_dot = env.get_template("petrinet_renderer.j2")
-    with open("test_pet.dot", "w", encoding="utf-8") as f_dot:
-        places = [(make_graphviz_id(place), place_name, render_tokens(od.get_slot_value(od.get_source(od.get_incoming(place, "pn_of")[0]), "numTokens"))) for place_name, place in od.get_all_instances("PNPlace")]
-        f_dot.write(template_dot.render({"places": places}))
     dot = ""
-    dot += "rankdir=LR;\n"
-    dot += "center=true;\n"
-    dot += "margin=1;\n"
-    dot += "nodesep=1;\n"
-    dot += "subgraph places {\n"
-    dot += "  node [fontname=Arial,fontsize=10,shape=circle,fixedsize=true,label=\"\", height=.35,width=.35];\n"
+    dot += "rankdir=LR;"
+    dot += "center=true;"
+    dot += "margin=1;"
+    dot += "nodesep=1;"
+    dot += "subgraph places {"
+    dot += "  node [fontname=Arial,fontsize=10,shape=circle,fixedsize=true,label=\"\", height=.35,width=.35];"
     for place_name, place in od.get_all_instances("PNPlace"):
         # place_name = od.get_name(place)
         try:

examples/petrinet/runner.py

@@ -1,12 +1,14 @@
-from icecream import ic
-
+from state.devstate import DevState
+from api.od import ODAPI
 from concrete_syntax.textual_od.renderer import render_od
-from transformation.schedule.Tests import Test_xmlparser
+# from concrete_syntax.textual_od.renderer_jinja2 import render_od_jinja2
+from bootstrap.scd import bootstrap_scd
 from util import loader
+from transformation.rule import RuleMatcherRewriter, ActionGenerator
 from transformation.ramify import ramify
+from examples.semantics.operational import simulator
 from examples.petrinet.renderer import show_petri_net
 
-from transformation.schedule.rule_scheduler import *
 
 if __name__ == "__main__":
     import os
@@ -28,26 +30,35 @@ if __name__ == "__main__":
     # m_rt_initial_cs = m_cs +  read_file('models/m_example_simple_rt_initial.od')
     # m_cs            =         read_file('models/m_example_mutex.od')
     # m_rt_initial_cs = m_cs +  read_file('models/m_example_mutex_rt_initial.od')
-    m_cs            =         read_file('models/m_example_simple.od')
-    m_rt_initial_cs = m_cs +  read_file('models/m_example_simple_rt_initial.od')
+    m_cs            =         read_file('models/m_example_inharc.od')
+    m_rt_initial_cs = m_cs +  read_file('models/m_example_inharc_rt_initial.od')
 
     # Parse them
     mm           = loader.parse_and_check(state, mm_cs,           scd_mmm, "Petri-Net Design meta-model")
     mm_rt        = loader.parse_and_check(state, mm_rt_cs,        scd_mmm, "Petri-Net Runtime meta-model")
     m            = loader.parse_and_check(state, m_cs,            mm,      "Example model")
     m_rt_initial = loader.parse_and_check(state, m_rt_initial_cs, mm_rt,   "Example model initial state")
+
     mm_rt_ramified = ramify(state, mm_rt)
 
+    rules = loader.load_rules(state,
+        lambda rule_name, kind: f"{THIS_DIR}/operational_semantics/r_{rule_name}_{kind}.od",
+        mm_rt_ramified,
+        ["fire_transition"]) # only 1 rule :(
 
+    matcher_rewriter = RuleMatcherRewriter(state, mm_rt, mm_rt_ramified)
+    action_generator = ActionGenerator(matcher_rewriter, rules)
 
+    def render_callback(od):
+        show_petri_net(od)
+        return render_od(state, od.m, od.mm)
 
-    scheduler = RuleScheduler(state, mm_rt, mm_rt_ramified, verbose=True, directory="models")
+    sim = simulator.Simulator(
+        action_generator=action_generator,
+        decision_maker=simulator.InteractiveDecisionMaker(auto_proceed=False),
+        # decision_maker=simulator.RandomDecisionMaker(seed=0),
+        renderer=render_callback,
+        # renderer=lambda od: render_od(state, od.m, od.mm),
+    )
 
-    # if scheduler.load_schedule(f"petrinet.od"):
-    # if scheduler.load_schedule("schedules/combinatory.drawio"):
-    if scheduler.load_schedule("schedules/petrinet3.drawio"):
-
-
-        scheduler.generate_dot("../dot.dot")
-        code, message = scheduler.run(ODAPI(state, m_rt_initial, mm_rt))
-        print(f"{code}: {message}")
+    sim.run(ODAPI(state, m_rt_initial, mm_rt))

examples/petrinet/translational_semantics/tapaal/tapaal.jinja2

@@ -12,22 +12,11 @@
         nameOffsetY="0"
         positionX="{{ i * 100 + 100 }}"
         positionY="100"
-    /> 
+    />
   {% endfor %}
 
   {% for i, (transition_name, transition) in enumerate(odapi.get_all_instances("PNTransition")) %}
-    <transition angle="0"
-        displayName="true"
-        id="{{ transition_name }}"
-        infiniteServer="false"
-        name="{{ transition_name }}"
-        nameOffsetX="0"
-        nameOffsetY="0"
-        player="0"
-        positionX="{{ i * 100 + 100 }}"
-        positionY="300"
-        priority="0"
-        urgent="false"/>
+    <transition angle="0" displayName="true" id="{{ transition_name }}" infiniteServer="false" name="{{ transition_name }}" nameOffsetX="0" nameOffsetY="0" player="0" positionX="{{ i * 100 + 100 }}" positionY="300" priority="0" urgent="false"/>
   {% endfor %}
 
   {% for arc_name, arc in odapi.get_all_instances("arc") %}

examples/semantics/operational/port/assignment.py

@@ -0,0 +1,142 @@
+import functools
+from concrete_syntax.common import indent
+from examples.semantics.operational.port.helpers import design_to_state, state_to_design, get_time
+from examples.semantics.operational.simulator import make_actions_pure, filter_valid_actions
+
+
+def precondition_can_move_from(od, from_state):
+
+    # TO IMPLEMENT
+
+    # Function should return True if a ship can move out of 'from_state'
+
+    return False
+
+def precondition_can_move_to(od, to_state):
+
+    # TO IMPLEMENT
+
+    # Function should return True if a ship can move into 'to_state'
+
+    return False
+
+def precondition_all_successors_moved(od, conn):
+
+    # TO IMPLEMENT
+
+    # A move (or skip) can only be made along a connection after all subsequent connections have already made their move (or were skipped).
+
+    return True
+
+def precondition_workers_available(od, workerset):
+
+    # TO IMPLEMENT
+
+    # A worker in a WorkerSet can only be allocated to a berth, if the number of 'isOperating'-links is smaller than the number of workers in the WorkerSet.
+
+    return True
+
+def precondition_berth_unserved(od, berth):
+
+    # TO IMPLEMENT
+
+    # A worker can only be allocated to a berth, if the berth contains an 'unserved' ship.
+
+    return True
+
+def action_skip(od, conn_name):
+    # SERVES AS AN EXAMPLE - NO NEED TO EDIT THIS FUNCTION
+    conn = od.get(conn_name)
+    conn_state = design_to_state(od, conn)
+    od.set_slot_value(conn_state, "moved", True)
+    return [f"skip {conn_name}"]
+
+def action_move(od, conn_name):
+    action_skip(od, conn_name) # flag the connection as 'moved'
+
+    conn = od.get(conn_name)
+    from_place = od.get_source(conn)
+    to_place = od.get_target(conn)
+
+    from_state = design_to_state(od, from_place) # beware: Generator does not have State
+    to_state = design_to_state(od, to_place)
+
+    # TO IMPLEMENT:
+    #  - move a ship along the connection
+
+    return [f"unimplemented! nothing changed!"]
+
+def action_serve_berth(od, workerset_name, berth_name):
+
+    # TO IMPLEMENT:
+    #  - A worker starts operating a berth
+
+    return [f"unimplemented! nothing changed!"]
+
+def action_advance_time(od):
+    _, clock = od.get_all_instances("Clock")[0]
+    time = od.get_slot_value(clock, "time")
+    new_time = time + 1
+    od.set_slot_value(clock, "time", new_time)
+
+    # TO IMPLEMENT:
+    #  - all 'moved'-attributes need to be reset (to False)
+    #  - if there is a worker operating a Berth, then:
+    #      (1) the Berth's status becomes 'served'
+    #      (2) the worker is no longer operating the Berth
+
+    return [f"time is now {new_time}"]
+
+# This function is called to discover the possible steps that can be made.
+# It should not be necessary to edit this function
+def get_actions(od):
+    actions = {}
+
+    # Add move-actions (or skip-actions)
+    for conn_name, conn in od.get_all_instances("connection"):
+        already_moved = od.get_slot_value(design_to_state(od, conn), "moved")
+        if already_moved or not precondition_all_successors_moved(od, conn):
+            # a move was already made along this connection in the current time-step
+            continue
+
+        from_place = od.get_source(conn)
+        to_place = od.get_target(conn)
+        from_name = od.get_name(from_place)
+        to_name = od.get_name(to_place)
+        from_state = design_to_state(od, from_place)
+        to_state = design_to_state(od, to_place)
+
+        if (precondition_can_move_from(od, from_state)
+          and precondition_can_move_to(od, to_state)):
+            actions[f"move {conn_name} ({from_name} -> {to_name})"] = functools.partial(action_move, conn_name=conn_name)
+        else:
+            actions[f"skip {from_name} -> {to_name}"] = functools.partial(action_skip, conn_name=conn_name)
+
+    # Add actions to assign workers
+    for _, workerset in od.get_all_instances("WorkerSet"):
+        if not precondition_workers_available(od, workerset):
+            continue
+        for lnk in od.get_outgoing(workerset, "canOperate"):
+            berth = od.get_target(lnk)
+            if precondition_berth_unserved(od, berth):
+                berth_name = od.get_name(berth)
+                workerset_name = od.get_name(workerset)
+                actions[f"{workerset_name} operates {berth_name}"] = functools.partial(action_serve_berth, workerset_name=workerset_name, berth_name=berth_name)
+
+    # Only when no other action can be performed, can time advance
+    if len(actions) == 0:
+        actions["advance time"] = action_advance_time
+
+    # This wrapper turns our actions into pure functions: they will clone the model before modifying it. This is useful if we ever want to rollback an action.
+    return make_actions_pure(actions.items(), od)
+
+
+# Called every time the runtime state changes.
+# When this function returns a string, the simulation ends.
+# The string should represent the reason for ending the simulation.
+# When this function returns None, the simulation continues.
+def termination_condition(od):
+
+    # TO IMPLEMENT: terminate simulation when the place 'served' contains 2 ships.
+
+    pass

examples/semantics/operational/port/helpers.py

@@ -0,0 +1,18 @@
+# Some helper functions
+
+def get_num_ships(od, place):
+    place_state = design_to_state(od, place)
+    return od.get_slot_value(place_state, "numShips")
+
+def design_to_state(od, design):
+    incoming = od.get_incoming(design, "of")
+    if len(incoming) == 1:
+        # not all design-objects have a state
+        return od.get_source(incoming[0])
+
+def state_to_design(od, state):
+    return od.get_target(od.get_outgoing(state, "of")[0])
+    
+def get_time(od):
+    _, clock = od.get_all_instances("Clock")[0]
+    return clock, od.get_slot_value(clock, "time")

examples/semantics/operational/port/models.py

@@ -0,0 +1,407 @@
+# Design meta-model
+port_mm_cs = """
+    Source:Class {
+        abstract = True;
+    }
+    Sink:Class {
+        abstract = True;
+    }
+
+    Place:Class
+    :Inheritance (Place -> Source)
+    :Inheritance (Place -> Sink)
+
+    connection:Association (Source -> Sink)
+
+    CapacityConstraint:Class
+
+    CapacityConstraint_shipCapacity:AttributeLink (CapacityConstraint -> Integer) {
+        name = "shipCapacity";
+        optional = False;
+
+        # cannot have negative capacity:
+        constraint = `get_value(get_target(this)) >= 0`; # non-negative
+    }
+
+    # Capacity 
+    capacityOf:Association (CapacityConstraint -> Place) {
+        # must say something about at least one Place, otherwise what is the point of the constraint?
+        target_lower_cardinality = 1;
+    }
+
+    Berth:Class
+    :Inheritance (Berth -> Place)
+
+    # Set of workers
+    WorkerSet:Class
+
+    WorkerSet_numWorkers:AttributeLink (WorkerSet -> Integer) {
+        name = "numWorkers";
+        optional = False;
+        constraint = `get_value(get_target(this)) >= 0`; # non-negative
+    }
+    canOperate:Association (WorkerSet -> Berth) {
+        target_lower_cardinality = 1;
+    }
+
+    Generator:Class
+    :Inheritance (Generator -> Source)
+
+
+    # Those classes to which we want to attach a runtime state object
+    Stateful:Class {
+        abstract = True;
+    }
+    :Inheritance (Place      -> Stateful)
+    :Inheritance (WorkerSet  -> Stateful)
+    :Inheritance (Berth      -> Stateful)
+    :Inheritance (connection -> Stateful)
+""";
+
+# Runtime meta-model
+port_rt_mm_cs = port_mm_cs + """
+    State:Class
+    of:Association (State -> Stateful) {
+        source_lower_cardinality = 1;
+        source_upper_cardinality = 1;
+        target_lower_cardinality = 1;
+        target_upper_cardinality = 1;
+    }
+
+    PlaceState:Class
+    :Inheritance (PlaceState -> State)
+
+    PlaceState_numShips:AttributeLink (PlaceState -> Integer) {
+        # number of ships currently in the place
+        name = "numShips";
+        optional = False;
+        constraint = `get_value(get_target(this)) >= 0`; # non-negative
+    }
+
+    shipCapacities:GlobalConstraint {
+        constraint = ```
+            errors = []
+            for _, constr in get_all_instances("CapacityConstraint"):
+                cap = get_slot_value(constr, "shipCapacity")
+                total = 0
+                place_names = [] # for debugging
+                for lnk in get_outgoing(constr, "capacityOf"):
+                    place = get_target(lnk)
+                    place_names.append(get_name(place))
+                    place_state = get_source(get_incoming(place, "of")[0])
+                    total += get_slot_value(place_state, "numShips")
+                if total > cap:
+                    errors.append(f"The number of ships in places {','.join(place_names)} ({total}) exceeds the capacity ({cap}) of CapacityConstraint {get_name(constr)}.")
+            errors
+        ```;
+    }
+
+    BerthState:Class {
+        # status == empty <=> numShips == 0
+        constraint = ```
+            errors = []
+            numShips = get_slot_value(this, "numShips")
+            status = get_slot_value(this, "status")
+            if (numShips == 0) != (status == "empty"):
+                errors.append(f"Inconsistent: numShips = {numShips}, but status = {status}")
+            errors
+        ```;
+    }
+    :Inheritance (BerthState -> PlaceState)
+
+    BerthState_status:AttributeLink (BerthState -> String) {
+        name = "status";
+        optional = False;
+        constraint = `(
+            get_value(get_target(this)) in { "empty", "unserved", "served" }
+        )`;
+    }
+
+    WorkerSetState:Class
+    :Inheritance (WorkerSetState -> State)
+
+    isOperating:Association (WorkerSetState -> Berth) {
+        constraint = ```
+            errors = []
+
+            # get status of Berth
+            berth = get_target(this)
+            berth_state = get_source(get_incoming(berth, "of")[0])
+            status = get_slot_value(berth_state, "status")
+            if status != "unserved":
+                errors.append(f"Cannot operate {get_name(berth)} because there is no unserved ship there.")
+
+            # only operate Berts that we can operate
+            workerset = get_target(get_outgoing(get_source(this), "of")[0])
+            can_operate = [get_target(lnk) for lnk in get_outgoing(workerset, "canOperate")]
+            if berth not in can_operate:
+                errors.append(f"Cannot operate {get_name(berth)}.")
+
+            errors
+        ```;
+    }
+
+    operatingCapacities:GlobalConstraint {
+        constraint = ```
+            errors = []
+            for _, workersetstate in get_all_instances("WorkerSetState"):
+                workerset = get_target(get_outgoing(workersetstate, "of")[0])
+                num_operating = len(get_outgoing(workersetstate, "isOperating"))
+                num_workers = get_slot_value(workerset, "numWorkers")
+                if num_operating > num_workers:
+                    errors.append(f"WorkerSet {get_name(workerset)} is operating more berths ({num_operating}) than there are workers ({num_workers})")
+            errors
+        ```;
+    }
+
+    ConnectionState:Class
+    :Inheritance (ConnectionState -> State)
+    ConnectionState_moved:AttributeLink (ConnectionState -> Boolean) {
+        name = "moved";
+        optional = False;
+        constraint = ```
+            result = True
+            all_successors_moved = True
+            moved = get_value(get_target(this))
+            conn_state = get_source(this)
+            conn = get_target(get_outgoing(conn_state, "of")[0])
+            tgt_place = get_target(conn)
+            next_conns = get_outgoing(tgt_place, "connection")
+            for next_conn in next_conns:
+                next_conn_state = get_source(get_incoming(next_conn, "of")[0])
+                if not get_slot_value(next_conn_state, "moved"):
+                    all_successors_moved = False
+            if moved and not all_successors_moved:
+                result = f"Connection {get_name(conn)} played before its turn."
+            result
+        ```;
+    }
+
+    Clock:Class {
+        lower_cardinality = 1;
+        upper_cardinality = 1;
+    }
+    Clock_time:AttributeLink (Clock -> Integer) {
+        name = "time";
+        optional = False;
+        constraint = `get_value(get_target(this)) >= 0`;
+    }
+"""
+
+# Design model: the part that doesn't change
+port_m_cs = """
+    gen:Generator
+
+    # newly arrived ships collect here
+    waiting:Place
+    c1:connection (gen -> waiting)
+
+    inboundPassage:Place
+    c2:connection (waiting -> inboundPassage)
+
+    outboundPassage:Place
+
+    # inboundPassage and outboundPassage cannot have more than 3 ships total
+    passageCap:CapacityConstraint {
+        shipCapacity = 3;
+    }
+    :capacityOf (passageCap -> inboundPassage)
+    :capacityOf (passageCap -> outboundPassage)
+
+
+    # Berth 1
+
+    inboundBerth1:Place
+    berth1:Berth
+    outboundBerth1:Place
+
+    inboundBerth1Cap:CapacityConstraint { shipCapacity = 1; }
+    :capacityOf (inboundBerth1Cap -> inboundBerth1)
+    outboundBerth1Cap:CapacityConstraint { shipCapacity = 1; }
+    :capacityOf (outboundBerth1Cap -> outboundBerth1)
+
+    berth1Cap:CapacityConstraint { shipCapacity = 1; }
+    :capacityOf (berth1Cap -> berth1)
+
+    c3:connection (inboundBerth1 -> berth1)
+    c4:connection (berth1 -> outboundBerth1)
+
+    # Berth 2
+
+    inboundBerth2:Place
+    berth2:Berth
+    outboundBerth2:Place
+
+    inboundBerth2Cap:CapacityConstraint { shipCapacity = 1; }
+    :capacityOf (inboundBerth2Cap -> inboundBerth2)
+    outboundBerth2Cap:CapacityConstraint { shipCapacity = 1; }
+    :capacityOf (outboundBerth2Cap -> outboundBerth2)
+
+    berth2Cap:CapacityConstraint { shipCapacity = 1; }
+    :capacityOf (berth2Cap -> berth2)
+
+    c5:connection (inboundBerth2 -> berth2)
+    c6:connection (berth2 -> outboundBerth2)
+
+
+    # can either go to Berth 1 or Berth 2
+    c7:connection (inboundPassage -> inboundBerth1)
+    c8:connection (inboundPassage -> inboundBerth2)
+
+    c9:connection (outboundBerth1 -> outboundPassage)
+    c10:connection (outboundBerth2 -> outboundPassage)
+
+
+    # ships that have been served are counted here
+    served:Place
+    c11:connection (outboundPassage -> served)
+
+
+    workers:WorkerSet {
+        numWorkers = 1;
+    }
+    :canOperate (workers -> berth1)
+    :canOperate (workers -> berth2)
+"""
+
+# Initial runtime model: the part that changes (every execution step)
+port_rt_m_cs = port_m_cs + """
+    clock:Clock {
+        time = 0;
+    }
+
+    waitingState:PlaceState         { numShips = 0; }  :of (waitingState -> waiting)
+    inboundPassageState:PlaceState  { numShips = 0; }  :of (inboundPassageState -> inboundPassage)
+    outboundPassageState:PlaceState { numShips = 0; }  :of (outboundPassageState -> outboundPassage)
+
+    inboundBerth1State:PlaceState   { numShips = 0; }  :of (inboundBerth1State -> inboundBerth1)
+    outboundBerth1State:PlaceState  { numShips = 0; }  :of (outboundBerth1State -> outboundBerth1)
+    inboundBerth2State:PlaceState   { numShips = 0; }  :of (inboundBerth2State -> inboundBerth2)
+    outboundBerth2State:PlaceState  { numShips = 0; }  :of (outboundBerth2State -> outboundBerth2)
+
+    berth1State:BerthState { status = "empty"; numShips = 0; }  :of (berth1State -> berth1)
+    berth2State:BerthState { status = "empty"; numShips = 0; }  :of (berth2State -> berth2)
+
+    servedState:PlaceState { numShips = 0; }  :of (servedState -> served)
+
+    workersState:WorkerSetState  :of (workersState -> workers)
+
+    c1S:ConnectionState  { moved = False; }   :of (c1S -> c1)
+    c2S:ConnectionState  { moved = False; }   :of (c2S -> c2)
+    c3S:ConnectionState  { moved = False; }   :of (c3S -> c3)
+    c4S:ConnectionState  { moved = False; }   :of (c4S -> c4)
+    c5S:ConnectionState  { moved = False; }   :of (c5S -> c5)
+    c6S:ConnectionState  { moved = False; }   :of (c6S -> c6)
+    c7S:ConnectionState  { moved = False; }   :of (c7S -> c7)
+    c8S:ConnectionState  { moved = False; }   :of (c8S -> c8)
+    c9S:ConnectionState  { moved = False; }   :of (c9S -> c9)
+    c10S:ConnectionState { moved = False; }   :of (c10S -> c10)
+    c11S:ConnectionState { moved = False; }   :of (c11S -> c11)
+"""
+
+###################################################
+
+#                        ┌─────────────────┐            
+#                        │ shipCapacity=3  │            
+# ┌───┐     ┌───────┐    │┌──────────────┐ │  ┌───────┐ 
+# │gen├────►│waiting├────►│inboundPassage├───►│turning│ 
+# └───┘     └───────┘    │└──────────────┘ │  └───┬───┘ 
+#                        │                 │      │     
+#            ┌──────┐    │┌───────────────┐│      │     
+#            │served│◄────┼outboundPassage│◄──────┘     
+#            └──────┘    │└───────────────┘│            
+#                        └─────────────────┘            
+smaller_model_cs = """
+    gen:Generator
+    waiting:Place
+    inboundPassage:Place
+    turning:Place
+    outboundPassage:Place
+    served:Place
+
+    gen2wait:connection (gen -> waiting)
+    wait2inbound:connection (waiting -> inboundPassage)
+    inbound2turning:connection (inboundPassage -> turning)
+    turning2outbound:connection (turning -> outboundPassage)
+    outbound2served:connection (outboundPassage -> served)
+
+    # inboundPassage and outboundPassage cannot have more than 3 ships total
+    passageCap:CapacityConstraint {
+        shipCapacity = 3;
+    }
+    :capacityOf (passageCap -> inboundPassage)
+    :capacityOf (passageCap -> outboundPassage)
+"""
+
+smaller_model_rt_cs = smaller_model_cs + """
+    clock:Clock {
+        time = 0;
+    }
+
+    waitingState:PlaceState { numShips = 1; }  :of (waitingState -> waiting)
+    inboundPassageState:PlaceState { numShips = 1; }  :of (inboundPassageState -> inboundPassage)
+    turningState:PlaceState { numShips = 1; }  :of (turningState -> turning)
+    outboundPassageState:PlaceState { numShips = 1; }  :of (outboundPassageState -> outboundPassage)
+    servedState:PlaceState { numShips = 0; }  :of (servedState -> served)
+
+    gen2waitState:ConnectionState { moved = False; }  :of (gen2waitState -> gen2wait)
+    wait2inboundState:ConnectionState { moved = False; }  :of (wait2inboundState -> wait2inbound)
+    inbound2turningState:ConnectionState { moved = False; }  :of (inbound2turningState -> inbound2turning)
+    turning2outboundState:ConnectionState { moved = False; }  :of (turning2outboundState -> turning2outbound)
+    outbound2servedState:ConnectionState { moved = False; }  :of (outbound2servedState -> outbound2served)
+"""
+
+###################################################
+
+#                     ┌────────────┐           
+#                     │ workerset  │           
+#                     │            │           
+#                     │numWorkers=1│           
+#                     └──────┬─────┘           
+#                            │canOperate       
+#                            │                 
+#                        ┌───▼────┐            
+# ┌───┐     ┌───────┐    │┌─────┐ │    ┌──────┐
+# │gen├────►│waiting├────││berth├─┼───►│served│
+# └───┘     └───────┘    │└─────┘ │    └──────┘
+#                        │ship-   │            
+#                        │Capacity│            
+#                        │ =1     │            
+#                        └────────┘            
+smaller_model2_cs = """
+    gen:Generator
+    waiting:Place
+    berth:Berth
+    served:Place
+
+    gen2wait:connection (gen -> waiting)
+    wait2berth:connection (waiting -> berth)
+    berth2served:connection (berth -> served)
+
+    # berth can only hold 1 ship
+    passageCap:CapacityConstraint {
+        shipCapacity = 1;
+    }
+    :capacityOf (passageCap -> berth)
+
+    workers:WorkerSet {
+        numWorkers = 1;
+    }
+    :canOperate (workers -> berth)
+"""
+
+smaller_model2_rt_cs = smaller_model2_cs + """
+    clock:Clock {
+        time = 0;
+    }
+
+    waitingState:PlaceState { numShips = 1; }  :of (waitingState -> waiting)
+    berthState:BerthState { numShips = 0; status = "empty"; }  :of (berthState -> berth)
+    servedState:PlaceState { numShips = 0; }  :of (servedState -> served)
+
+    gen2waitState:ConnectionState { moved = False; }  :of (gen2waitState -> gen2wait)
+    wait2berthState:ConnectionState { moved = False; }  :of (wait2berthState -> wait2berth)
+    berth2servedState:ConnectionState { moved = False; }  :of (berth2servedState -> berth2served)
+
+    workersState:WorkerSetState  :of (workersState -> workers)
+"""

examples/semantics/operational/port/renderer.py

@@ -0,0 +1,78 @@
+from concrete_syntax.common import indent
+from concrete_syntax.graphviz.make_url import make_url
+from examples.semantics.operational.port.helpers import design_to_state, state_to_design, get_time, get_num_ships
+
+def render_port_to_dot(od,
+    make_id=lambda name,obj: name # by default, we just use the object name for the graphviz node name
+):
+    txt = ""
+
+    def render_place(place):
+        name = od.get_name(place)
+        return f'"{make_id(name,place)}" [ label = "{name}\\n ships = {get_num_ships(od, place)}", style = filled, fillcolor = lightblue ]\n'
+
+    for _, cap in od.get_all_instances("CapacityConstraint", include_subtypes=False):
+        name = od.get_name(cap)
+        capacity = od.get_slot_value(cap, "shipCapacity")
+        txt += f'subgraph cluster_{name} {{\n  label = "{name}\\n capacity = {capacity}";\n'
+        for lnk in od.get_outgoing(cap, "capacityOf"):
+            place = od.get_target(lnk)
+            txt += f'  {render_place(place)}'
+        txt += f'}}\n'
+
+    for _, place_state in od.get_all_instances("PlaceState", include_subtypes=False):
+        place = state_to_design(od, place_state)
+        if len(od.get_incoming(place, "capacityOf")) == 0:
+            txt += render_place(place)
+
+    for _, berth_state in od.get_all_instances("BerthState", include_subtypes=False):
+        berth = state_to_design(od, berth_state)
+        name = od.get_name(berth)
+        txt += f'"{make_id(name,berth)}" [ label = "{name}\\n numShips = {get_num_ships(od, berth)}\\n status = {od.get_slot_value(berth_state, "status")}", fillcolor = yellow, style = filled]\n'
+
+    for _, gen in od.get_all_instances("Generator", include_subtypes=False):
+        txt += f'"{make_id(od.get_name(gen),gen)}" [ label = "+", shape = diamond, fillcolor = green, fontsize = 30, style = filled ]\n'
+
+    for _, conn in od.get_all_instances("connection"):
+        src = od.get_source(conn)
+        tgt = od.get_target(conn)
+        moved = od.get_slot_value(design_to_state(od, conn), "moved")
+        src_name = od.get_name(src)
+        tgt_name = od.get_name(tgt)
+        txt += f"{make_id(src_name,src)} -> {make_id(tgt_name,tgt)} [color=deepskyblue3, penwidth={1 if moved else 2}];\n"
+
+    for _, workers in od.get_all_instances("WorkerSet"):
+        already_have = []
+        name = od.get_name(workers)
+        num_workers = od.get_slot_value(workers, "numWorkers")
+        txt += f'{make_id(name,workers)} [label="{num_workers} worker(s)", shape=parallelogram, fillcolor=chocolate, style=filled];\n'
+        for lnk in od.get_outgoing(design_to_state(od, workers), "isOperating"):
+            berth = od.get_target(lnk)
+            already_have.append(berth)
+            txt += f"{make_id(name,workers)} -> {make_id(od.get_name(berth),berth)} [arrowhead=none, color=chocolate];\n"
+        for lnk in od.get_outgoing(workers, "canOperate"):
+            berth = od.get_target(lnk)
+            if berth not in already_have:
+                txt += f"{make_id(name,workers)} -> {make_id(od.get_name(berth),berth)} [style=dotted, arrowhead=none, color=chocolate];\n"
+
+    return txt
+
+def render_port_graphviz(od):
+    return make_url(render_port_to_dot(od))
+
+def render_port_textual(od):
+    txt = ""
+    for _, place_state in od.get_all_instances("PlaceState", include_subtypes=False):
+        place = state_to_design(od, place_state)
+        name = od.get_name(place)
+        txt += f'place "{name}" {"🚢"*get_num_ships(od, place)}\n'
+
+    for _, berth_state in od.get_all_instances("BerthState", include_subtypes=False):
+        berth = state_to_design(od, berth_state)
+        name = od.get_name(berth)
+        operated_descr = ""
+        if len(od.get_incoming(berth, "isOperating")):
+            operated_descr = " and being operated"
+        txt += f'berth "{name}" {"🚢"*get_num_ships(od, berth)} {od.get_slot_value(berth_state, "status")}{operated_descr}\n'
+
+    return txt

examples/semantics/operational/port/rulebased_runner.py

@@ -0,0 +1,62 @@
+import urllib.parse
+
+from state.devstate import DevState
+from bootstrap.scd import bootstrap_scd
+from framework.conformance import Conformance, render_conformance_check_result
+from concrete_syntax.textual_od import parser
+from concrete_syntax.plantuml.renderer import render_object_diagram, render_class_diagram
+from api.od import ODAPI
+
+from transformation.ramify import ramify
+
+from examples.semantics.operational.simulator import Simulator, RandomDecisionMaker, InteractiveDecisionMaker
+from examples.semantics.operational.port import models
+from examples.semantics.operational.port.helpers import design_to_state, state_to_design, get_time
+from examples.semantics.operational.port.renderer import render_port_textual, render_port_graphviz
+
+from examples.semantics.operational.port import rulebased_sem
+
+state = DevState()
+scd_mmm = bootstrap_scd(state) # Load meta-meta-model
+
+### Load (meta-)models ###
+
+def parse_and_check(m_cs: str, mm, descr: str):
+    m = parser.parse_od(
+        state,
+        m_text=m_cs,
+        mm=mm)
+    conf = Conformance(state, m, mm)
+    print(descr, "...", render_conformance_check_result(conf.check_nominal()))
+    return m
+
+port_mm    = parse_and_check(models.port_mm_cs,    scd_mmm,    "MM")
+port_m     = parse_and_check(models.port_m_cs,     port_mm,    "M")
+port_rt_mm = parse_and_check(models.port_rt_mm_cs, scd_mmm,    "RT-MM")
+port_rt_m  = parse_and_check(models.port_rt_m_cs,  port_rt_mm, "RT-M")
+
+print()
+
+# print(render_class_diagram(state, port_rt_mm))
+
+### Simulate ###
+
+port_rt_mm_ramified = ramify(state, port_rt_mm)
+
+rulebased_action_generator = rulebased_sem.get_action_generator(state, port_rt_mm, port_rt_mm_ramified)
+termination_condition      = rulebased_sem.TerminationCondition(state, port_rt_mm_ramified)
+
+sim = Simulator(
+    action_generator=rulebased_action_generator,
+    # decision_maker=RandomDecisionMaker(seed=2),
+    decision_maker=InteractiveDecisionMaker(),
+    termination_condition=termination_condition,
+    check_conformance=True,
+    verbose=True,
+    renderer=render_port_textual,
+    # renderer=render_port_graphviz,
+)
+
+od = ODAPI(state, port_rt_m, port_rt_mm)
+
+sim.run(od)

examples/semantics/operational/port/rulebased_sem.py

@@ -0,0 +1,67 @@
+### Operational Semantics - defined by rule-based model transformation ###
+
+from concrete_syntax.textual_od.parser import parse_od
+from transformation.rule import Rule, RuleMatcherRewriter, PriorityActionGenerator
+from transformation.matcher import match_od
+from util import loader
+
+import os
+THIS_DIR = os.path.dirname(__file__)
+
+# kind: lhs, rhs, nac
+get_filename = lambda rule_name, kind: f"{THIS_DIR}/rules/r_{rule_name}_{kind}.od"
+
+
+def get_action_generator(state, rt_mm, rt_mm_ramified):
+    matcher_rewriter = RuleMatcherRewriter(state, rt_mm, rt_mm_ramified)
+
+    #############################################################################
+    # TO IMPLEMENT: Full semantics as a set of rule-based model transformations #
+
+    rules0_dict = loader.load_rules(state, get_filename, rt_mm_ramified,
+        ["ship_sinks"] # <- list of rule_name of equal priority
+    )
+    rules1_dict = loader.load_rules(state, get_filename, rt_mm_ramified,
+        ["ship_appears_in_berth"]
+    )
+    # rules2_dict = ...
+
+    generator = PriorityActionGenerator(matcher_rewriter, [
+        rules0_dict, # highest priority
+        rules1_dict, # lower priority
+        # rules2_dict, # lowest priority
+    ])
+
+    # TO IMPLEMENT: Full semantics as a set of rule-based model transformations #
+    #############################################################################
+
+    return generator
+
+
+
+
+# The termination condition can also be specified as a pattern:
+class TerminationCondition:
+    def __init__(self, state, rt_mm_ramified):
+        self.state = state
+        self.rt_mm_ramified = rt_mm_ramified
+
+        # TO IMPLEMENT: terminate simulation when the place 'served' contains 2 ships.
+
+        ########################################
+        # You should only edit the pattern below
+        pattern_cs = """
+            # Placeholder to make the termination condition never hold:
+            :GlobalCondition {
+                condition = `False`;
+            }
+        """
+        # You should only edit the pattern above
+        ########################################
+
+        self.pattern = parse_od(state, pattern_cs, rt_mm_ramified)
+
+    def __call__(self, od):
+        for match in match_od(self.state, od.m, od.mm, self.pattern, self.rt_mm_ramified):
+            # stop after the first match (no need to look for more matches):
+            return "There are 2 ships served." # Termination condition statisfied

examples/semantics/operational/port/rules/README.txt

@@ -0,0 +1,13 @@
+The names of the files in this directory are important.
+
+A rule must always be named:
+  r_<rule_name>_<lhs|rhs|nac>.od
+
+It is allowed to have more than one NAC. In this case, the NACs must be named:
+  r_<rule_name>_nac.od
+  r_<rule_name>_nac2.od
+  r_<rule_name>_nac3.od
+  ...
+
+
+For the assignment, you can delete the existing rules (they are nonsense) and start fresh.

examples/semantics/operational/port/rules/r_ship_appears_in_berth_lhs.od

@@ -0,0 +1,4 @@
+berthState:RAM_BerthState {
+  RAM_numShips = `get_value(this) == 0`;
+  RAM_status   = `get_value(this) == "empty"`;
+}

examples/semantics/operational/port/rules/r_ship_appears_in_berth_rhs.od

@@ -0,0 +1,4 @@
+berthState:RAM_BerthState {
+  RAM_numShips = `1`;
+  RAM_status   = `"served"`;
+}

examples/semantics/operational/port/rules/r_ship_sinks_lhs.od

@@ -0,0 +1,5 @@
+# Find any place that has at least one ship:
+
+placeState:RAM_PlaceState {
+  RAM_numShips = `get_value(this) > 0`;
+}

examples/semantics/operational/port/rules/r_ship_sinks_rhs.od

@@ -0,0 +1,4 @@
+placeState:RAM_PlaceState {
+  # Decrement number of ships:
+  RAM_numShips = `get_value(this) - 1`;
+}

examples/semantics/operational/port/runner.py

@@ -0,0 +1,56 @@
+import urllib.parse
+
+from state.devstate import DevState
+from bootstrap.scd import bootstrap_scd
+from framework.conformance import Conformance, render_conformance_check_result
+from concrete_syntax.textual_od import parser
+from concrete_syntax.plantuml.renderer import render_object_diagram, render_class_diagram
+from api.od import ODAPI
+
+from examples.semantics.operational.simulator import Simulator, RandomDecisionMaker, InteractiveDecisionMaker
+from examples.semantics.operational.port import models
+from examples.semantics.operational.port.helpers import design_to_state, state_to_design, get_time
+from examples.semantics.operational.port.renderer import render_port_textual, render_port_graphviz
+
+# from examples.semantics.operational.port.joeris_solution import termination_condition, get_actions
+from examples.semantics.operational.port.assignment import termination_condition, get_actions
+
+state = DevState()
+scd_mmm = bootstrap_scd(state) # Load meta-meta-model
+
+### Load (meta-)models ###
+
+def parse_and_check(m_cs: str, mm, descr: str):
+    m = parser.parse_od(
+        state,
+        m_text=m_cs,
+        mm=mm)
+    conf = Conformance(state, m, mm)
+    print(descr, "...", render_conformance_check_result(conf.check_nominal()))
+    return m
+
+port_mm    = parse_and_check(models.port_mm_cs,    scd_mmm,    "MM")
+port_m     = parse_and_check(models.port_m_cs,     port_mm,    "M")
+port_rt_mm = parse_and_check(models.port_rt_mm_cs, scd_mmm,    "RT-MM")
+port_rt_m  = parse_and_check(models.port_rt_m_cs,  port_rt_mm, "RT-M")
+
+print()
+
+# print(render_class_diagram(state, port_rt_mm))
+
+### Simulate ###
+
+sim = Simulator(
+    action_generator=get_actions,
+    # decision_maker=RandomDecisionMaker(seed=2),
+    decision_maker=InteractiveDecisionMaker(),
+    termination_condition=termination_condition,
+    check_conformance=True,
+    verbose=True,
+    renderer=render_port_textual,
+    # renderer=render_port_graphviz,
+)
+
+od = ODAPI(state, port_rt_m, port_rt_mm)
+
+sim.run(od)

examples/semantics/operational/simulator.py

@@ -0,0 +1,70 @@
+import abc
+import random
+import math
+import functools
+import sys
+
+from framework.conformance import Conformance, render_conformance_check_result
+from concrete_syntax.common import indent
+from concrete_syntax.textual_od.renderer import render_od
+from transformation.cloner import clone_od
+from api.od import ODAPI
+
+from util.simulator import MinimalSimulator, DecisionMaker, RandomDecisionMaker, InteractiveDecisionMaker
+
+
+class Simulator(MinimalSimulator):
+    def __init__(self,
+        action_generator,
+        decision_maker: DecisionMaker,
+        termination_condition=lambda od: None,
+        check_conformance=True,
+        verbose=True,
+        renderer=lambda od: render_od(od.state, od.m, od.mm),
+    ):
+        super().__init__(
+            action_generator=action_generator,
+            decision_maker=decision_maker,
+            termination_condition=lambda od: self.check_render_termination_condition(od),
+            verbose=verbose,
+        )
+        self.check_conformance = check_conformance
+        self.actual_termination_condition = termination_condition
+        self.renderer = renderer
+
+    def check_render_termination_condition(self, od):
+        # A termination condition checker that also renders the model, and performs conformance check
+        self._print("--------------")
+        self._print(indent(self.renderer(od), 2))
+        self._print("--------------")
+        if self.check_conformance:
+            conf = Conformance(od.state, od.m, od.mm)
+            self._print(render_conformance_check_result(conf.check_nominal()))
+            self._print()
+        return self.actual_termination_condition(od)
+
+def make_actions_pure(actions, od):
+    # Copy model before modifying it
+    def exec_pure(action, od):
+        cloned_rt_m = clone_od(od.state, od.m, od.mm)
+        new_od = ODAPI(od.state, cloned_rt_m, od.mm)
+        msgs = action(new_od)
+        return (new_od, msgs)
+
+    for descr, action in actions:
+        yield (descr, functools.partial(exec_pure, action, od))
+
+def filter_valid_actions(pure_actions):
+    result = {}
+    def make_tuple(new_od, msgs):
+        return (new_od, msgs)
+    for name, callback in pure_actions:
+        # print(f"attempt '{name}' ...", end='\r')
+        (new_od, msgs) = callback()
+        conf = Conformance(new_od.state, new_od.m, new_od.mm)
+        errors = conf.check_nominal()
+        # erase current line:
+        # print("                                                                                ", end='\r')
+        if len(errors) == 0:
+            # updated RT-M is conform, we have a valid action:
+            yield (name, functools.partial(make_tuple, new_od, msgs))

examples/semantics/translational/.gitignore

@@ -0,0 +1,4 @@
+# Let's not accidently add the solution to assignment 5...
+r_*.od
+
+snapshot_after_*.od

examples/semantics/translational/merged_mm.od

@@ -0,0 +1,197 @@
+# Auto-generated by /home/maestro/repos/MV2/examples/semantics/translational/regenerate_mm.py.
+
+# Merged run-time meta-models of 'Petri Net' and 'Port' formalisms.
+# An abstract 'Top'-class (superclass of everything else), and a 'generic_link'-association (which can connect everything with everything) have also been added.
+
+# PlantUML visualization: https://deemz.org/plantuml/pdf/hPTFYzim4CNl_XGYnqA27P8uDgM7tSEobsmWWHw3RCk9Y2CPMIcKThzxHyuViiMGPwCSzhJpqxoPfz4uo2lUD6pqockUI_lxLQl66YwLPIF66nPUVxkEF-ut2uk8_GaOQmwola5OojwL5NjXWi_WUi1wjQvuBZQMMm6ZborQdKzRVHIgwUB-rEOep4RW-POtw2MqazehJR4WucV0CrUvtB97HdckO4pHZT5dawEvH25l8RUkLZe_icWoYS3mQTmMnygJw2hBYp3sqASsqPnVt44nPrVfZJLIxJjaRdMDCkFuKMDhApGqcJs6thtJIrAIFJBQag2XVFeO-YQKCDng0uSdNuIljeQhHbgf5Kh8mawFhLTqxvN8BSygk0vPtErNgOueelZIZciE9ATNFyhB03hfNtI3KlQYTIMu-iyW_OZtkREXgTOv8AxZ32QMhT3WwN-wAV3zxtZyd3ahn7ESkoiOZkQuJnorrYTkFaDmTBl1xFZKPoleJG6oez4CPfS0Ojsh0-BAfLUZY8LNeuJSAsuQ-nLR-3GArDaUOZD0R0-Z91cGNG5VCaWipLeGDqUCak6r2_rUCg_ZarPVhnE59rvjZ8pF7gqeI-XbNB1Hn2OJHiliUFo3djuHjbMdJ2FpcV9ro1OTkdE-0NmNbJ9kSa00VNdS3uZW0sXdJ5dErKVjbaNapI_BGK92EaUgmmuIuxmtu10Q7YJclkSXHLiEwBehGSfgjOCQ7mzgVEmQltShlCnt5Iszo8AI3JcfTO1iBWPmNqz0rQ8XLalQxbm_uZ_AVm==
+
+
+CapacityConstraint:Class
+PNPlaceState:Class
+WorkerSet:Class
+State:Class
+Stateful:Class {
+    abstract = True;
+}
+Source:Class {
+    abstract = True;
+}
+Clock:Class {
+    lower_cardinality = 1;
+    upper_cardinality = 1;
+}
+BerthState:Class {
+    constraint = ```
+        errors = []
+        numShips = get_slot_value(this, "numShips")
+        status = get_slot_value(this, "status")
+        if (numShips == 0) != (status == "empty"):
+            errors.append(f"Inconsistent: numShips = {numShips}, but status = {status}")
+        errors
+    ```;
+}
+Top:Class {
+    abstract = True;
+}
+Place:Class
+WorkerSetState:Class
+Berth:Class
+Generator:Class
+PNTransition:Class
+PNConnectable:Class {
+    abstract = True;
+}
+Sink:Class {
+    abstract = True;
+}
+ConnectionState:Class
+PlaceState:Class
+PNPlace:Class
+shipCapacities:GlobalConstraint {
+    constraint = ```
+        errors = []
+        for _, constr in get_all_instances("CapacityConstraint"):
+            cap = get_slot_value(constr, "shipCapacity")
+            total = 0
+            place_names = [] # for debugging
+            for lnk in get_outgoing(constr, "capacityOf"):
+                place = get_target(lnk)
+                place_names.append(get_name(place))
+                place_state = get_source(get_incoming(place, "of")[0])
+                total += get_slot_value(place_state, "numShips")
+            if total > cap:
+                errors.append(f"The number of ships in places {','.join(place_names)} ({total}) exceeds the capacity ({cap}) of CapacityConstraint {get_name(constr)}.")
+        errors
+    ```;
+}
+operatingCapacities:GlobalConstraint {
+    constraint = ```
+        errors = []
+        for _, workersetstate in get_all_instances("WorkerSetState"):
+            workerset = get_target(get_outgoing(workersetstate, "of")[0])
+            num_operating = len(get_outgoing(workersetstate, "isOperating"))
+            num_workers = get_slot_value(workerset, "numWorkers")
+            if num_operating > num_workers:
+                errors.append(f"WorkerSet {get_name(workerset)} is operating more berths ({num_operating}) than there are workers ({num_workers})")
+        errors
+    ```;
+}
+WorkerSet_numWorkers:AttributeLink (WorkerSet -> Integer) {
+    name = "numWorkers";
+    constraint = `get_value(get_target(this)) >= 0`;
+    optional = False;
+}
+PlaceState_numShips:AttributeLink (PlaceState -> Integer) {
+    constraint = `get_value(get_target(this)) >= 0`;
+    optional = False;
+    name = "numShips";
+}
+ConnectionState_moved:AttributeLink (ConnectionState -> Boolean) {
+    name = "moved";
+    constraint = ```
+        result = True
+        all_successors_moved = True
+        moved = get_value(get_target(this))
+        conn_state = get_source(this)
+        conn = get_target(get_outgoing(conn_state, "of")[0])
+        tgt_place = get_target(conn)
+        next_conns = get_outgoing(tgt_place, "connection")
+        for next_conn in next_conns:
+            next_conn_state = get_source(get_incoming(next_conn, "of")[0])
+            if not get_slot_value(next_conn_state, "moved"):
+                all_successors_moved = False
+        if moved and not all_successors_moved:
+            result = f"Connection {get_name(conn)} played before its turn."
+        result
+    ```;
+    optional = False;
+}
+BerthState_status:AttributeLink (BerthState -> String) {
+    optional = False;
+    name = "status";
+    constraint = ```
+        (
+                    get_value(get_target(this)) in { "empty", "unserved", "served" }
+                )
+    ```;
+}
+PNPlaceState_numTokens:AttributeLink (PNPlaceState -> Integer) {
+    name = "numTokens";
+    constraint = `"numTokens cannot be negative" if get_value(get_target(this)) < 0 else None`;
+    optional = False;
+}
+Clock_time:AttributeLink (Clock -> Integer) {
+    optional = False;
+    name = "time";
+    constraint = `get_value(get_target(this)) >= 0`;
+}
+CapacityConstraint_shipCapacity:AttributeLink (CapacityConstraint -> Integer) {
+    optional = False;
+    name = "shipCapacity";
+    constraint = `get_value(get_target(this)) >= 0`;
+}
+of:Association (State -> Stateful) {
+    target_lower_cardinality = 1;
+    source_upper_cardinality = 1;
+    source_lower_cardinality = 1;
+    target_upper_cardinality = 1;
+}
+arc:Association (PNConnectable -> PNConnectable)
+canOperate:Association (WorkerSet -> Berth) {
+    target_lower_cardinality = 1;
+}
+inh_arc:Association (PNPlace -> PNTransition)
+connection:Association (Source -> Sink)
+pn_of:Association (PNPlaceState -> PNPlace) {
+    source_upper_cardinality = 1;
+    source_lower_cardinality = 1;
+    target_upper_cardinality = 1;
+    target_lower_cardinality = 1;
+}
+generic_link:Association (Top -> Top)
+isOperating:Association (WorkerSetState -> Berth) {
+    constraint = ```
+        errors = []
+        
+        # get status of Berth
+        berth = get_target(this)
+        berth_state = get_source(get_incoming(berth, "of")[0])
+        status = get_slot_value(berth_state, "status")
+        if status != "unserved":
+            errors.append(f"Cannot operate {get_name(berth)} because there is no unserved ship there.")
+        
+        # only operate Berts that we can operate
+        workerset = get_target(get_outgoing(get_source(this), "of")[0])
+        can_operate = [get_target(lnk) for lnk in get_outgoing(workerset, "canOperate")]
+        if berth not in can_operate:
+            errors.append(f"Cannot operate {get_name(berth)}.")
+        
+        errors
+    ```;
+}
+capacityOf:Association (CapacityConstraint -> Place) {
+    target_lower_cardinality = 1;
+}
+:Inheritance (connection -> Stateful)
+:Inheritance (CapacityConstraint -> Top)
+:Inheritance (Sink -> Top)
+:Inheritance (generic_link -> Top)
+:Inheritance (Berth -> Place)
+:Inheritance (WorkerSet -> Stateful)
+:Inheritance (Place -> Source)
+:Inheritance (PlaceState -> State)
+:Inheritance (State -> Top)
+:Inheritance (Source -> Top)
+:Inheritance (Clock -> Top)
+:Inheritance (Stateful -> Top)
+:Inheritance (Place -> Stateful)
+:Inheritance (PNConnectable -> Top)
+:Inheritance (WorkerSetState -> State)
+:Inheritance (Place -> Sink)
+:Inheritance (BerthState -> PlaceState)
+:Inheritance (PNTransition -> PNConnectable)
+:Inheritance (ConnectionState -> State)
+:Inheritance (PNPlaceState -> Top)
+:Inheritance (Generator -> Source)
+:Inheritance (Berth -> Stateful)
+:Inheritance (PNPlace -> PNConnectable)

examples/semantics/translational/regenerate_mm.py

@@ -0,0 +1,65 @@
+from state.devstate import DevState
+from bootstrap.scd import bootstrap_scd
+from concrete_syntax.textual_od import renderer
+from concrete_syntax.plantuml.renderer import render_class_diagram
+from concrete_syntax.plantuml.make_url import make_url
+from api.od import ODAPI
+
+from transformation.topify.topify import Topifier
+from transformation.merger import merge_models
+
+from util import loader
+
+from examples.semantics.operational.port import models
+
+import os
+THIS_DIR = os.path.dirname(__file__)
+
+# get file contents as string
+def read_file(filename):
+    with open(THIS_DIR+'/'+filename) as file:
+        return file.read()
+
+if __name__ == "__main__":
+    state = DevState()
+    scd_mmm = bootstrap_scd(state)
+
+    # Load Petri Net meta-models
+    pn_mm_cs    =            read_file('../../petrinet/metamodels/mm_design.od')
+    pn_mm_rt_cs = pn_mm_cs + read_file('../../petrinet/metamodels/mm_runtime.od')
+    pn_mm    = loader.parse_and_check(state, pn_mm_cs,    scd_mmm, "Petri-Net Design meta-model")
+    pn_mm_rt = loader.parse_and_check(state, pn_mm_rt_cs, scd_mmm, "Petri-Net Runtime meta-model")
+
+    # Load Port meta-models
+    port_mm    = loader.parse_and_check(state, models.port_mm_cs,    scd_mmm,    "Port-MM")
+    port_mm_rt = loader.parse_and_check(state, models.port_rt_mm_cs, scd_mmm,    "Port-MM-RT")
+
+    # Merge Petri Net and Port meta-models
+    print("merging...")
+    merged_mm_rt = merge_models(state, mm=scd_mmm, models=[pn_mm_rt, port_mm_rt])
+    print("done merging")
+
+    print()
+    print("topifying... (may take a while)")
+    topifier = Topifier(state)
+    top_merged_mm_rt = topifier.topify_cd(merged_mm_rt)
+    print("done topifying")
+
+    plantuml_url = make_url(render_class_diagram(state, top_merged_mm_rt))
+
+    print()
+    print(plantuml_url)
+    print()
+
+    txt = renderer.render_od(state, top_merged_mm_rt, scd_mmm)
+
+    filename = THIS_DIR+"/merged_mm.od"
+
+    with open(filename, "w") as file:
+        file.write(f"# Auto-generated by {__file__}.\n\n")
+        file.write(f"# Merged run-time meta-models of 'Petri Net' and 'Port' formalisms.\n")
+        file.write(f"# An abstract 'Top'-class (superclass of everything else), and a 'generic_link'-association (which can connect everything with everything) have also been added.\n\n")
+        file.write(f"# PlantUML visualization: {plantuml_url}\n\n")
+        file.write(txt)
+
+    print("Wrote file", filename)

examples/semantics/translational/renderer.py

@@ -0,0 +1,90 @@
+from api.od import ODAPI
+from concrete_syntax.graphviz.renderer import render_object_diagram, make_graphviz_id
+from concrete_syntax.graphviz.make_url import show_graphviz
+from examples.petrinet.renderer import render_petri_net_to_dot
+from examples.semantics.operational.port.renderer import render_port_to_dot
+from examples.semantics.operational.port import helpers
+
+# COLORS
+PLACE_BG = "#DAE8FC" # fill color
+PLACE_FG = "#6C8EBF" # font, line, arrow
+BERTH_BG = "#FFF2CC"
+BERTH_FG = "#D6B656"
+CAPACITY_BG = "#F5F5F5"
+CAPACITY_FG = "#666666"
+WORKER_BG = "#D5E8D4"
+WORKER_FG = "#82B366"
+GENERATOR_BG = "#FFE6CC"
+GENERATOR_FG = "#D79B00"
+CLOCK_BG = "black"
+CLOCK_FG = "white"
+
+def graphviz_style_fg_bg(fg, bg):
+    return f"style=filled,fillcolor=\"{bg}\",color=\"{fg}\",fontcolor=\"{fg}\""
+
+def render_port(state, m, mm):
+    dot = render_object_diagram(state, m, mm,
+        reify=True,
+        only_render=[
+            # Only render these types
+            "Place", "Berth", "CapacityConstraint", "WorkerSet", "Generator", "Clock",
+            "connection", "capacityOf", "canOperate", "generic_link",
+            # Petri Net types not included (they are already rendered by other function)
+            # Port-State-types not included to avoid cluttering the diagram, but if you need them, feel free to add them.
+        ],
+        # We can style nodes/edges according to their type:
+        type_to_style={
+            "Place": graphviz_style_fg_bg(PLACE_FG, PLACE_BG),
+            "Berth": graphviz_style_fg_bg(BERTH_FG, BERTH_BG),
+            "CapacityConstraint": graphviz_style_fg_bg(CAPACITY_FG, CAPACITY_BG),
+            "WorkerSet": "shape=oval,"+graphviz_style_fg_bg(WORKER_FG, WORKER_BG),
+            "Generator": "shape=parallelogram,"+graphviz_style_fg_bg(GENERATOR_FG, GENERATOR_BG),
+            "Clock": graphviz_style_fg_bg(CLOCK_FG, CLOCK_BG),
+
+            # same blue as Place, thick line:
+            "connection": f"color=\"{PLACE_FG}\",fontcolor=\"{PLACE_FG}\",penwidth=2.0",
+
+            # same grey as CapacityConstraint
+            "capacityOf": f"color=\"{CAPACITY_FG}\",fontcolor=\"{CAPACITY_FG}\"",
+
+            # same green as WorkerSet
+            "canOperate": f"color=\"{WORKER_FG}\",fontcolor=\"{WORKER_FG}\"",
+
+            # purple line
+            "generic_link": "color=purple,fontcolor=purple,arrowhead=onormal",
+        },
+        # We have control over the node/edge labels that are rendered:
+        type_to_label={
+            "CapacityConstraint": lambda capconstr_name, capconstr, odapi: f"{capconstr_name}\\nshipCapacity={odapi.get_slot_value(capconstr, "shipCapacity")}",
+
+            "Place": lambda place_name, place, odapi: f"{place_name}\\nnumShips={helpers.get_num_ships(odapi, place)}",
+
+            "Berth": lambda berth_name, berth, odapi: f"{berth_name}\\nnumShips={helpers.get_num_ships(odapi, berth)}\\nstatus={odapi.get_slot_value(helpers.design_to_state(odapi, berth), "status")}",
+
+            "Clock": lambda _, clock, odapi: f"Clock\\ntime={odapi.get_slot_value(clock, "time")}",
+
+            "connection": lambda conn_name, conn, odapi: f"{conn_name}\\nmoved={odapi.get_slot_value(helpers.design_to_state(odapi, conn), "moved")}",
+
+            # hide generic link labels
+            "generic_link": lambda lnk_name, lnk, odapi: "",
+
+            "WorkerSet": lambda ws_name, ws, odapi: f"{ws_name}\\nnumWorkers={odapi.get_slot_value(ws, "numWorkers")}",
+
+            # hide the type (it's already clear enough)
+            "Generator": lambda gen_name, gen, odapi: gen_name,
+        },
+    )
+    return dot
+
+def render_port_and_petri_net(state, m, mm):
+    od = ODAPI(state, m, mm)
+    dot = ""
+    dot += "// petri net:\n"
+    dot += render_petri_net_to_dot(od)
+    dot += "\n// the rest:\n"
+    dot += render_port(state, m, mm)
+    return dot
+
+
+def show_port_and_petri_net(state, m, mm, engine="dot"):
+    show_graphviz(render_port_and_petri_net(state, m, mm), engine=engine)