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Add ActionCode primitive type. Fix constraint checking.

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This commit is contained in:
Joeri Exelmans 2024-10-07 16:08:23 +02:00
parent 0785b9218e
commit 59de61d0a3
11 changed files with 256 additions and 82 deletions
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54
services/od.py
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@ -4,10 +4,12 @@ from services.bottom.V0 import Bottom
from services.primitives.integer_type import Integer
from services.primitives.string_type import String
from services.primitives.boolean_type import Boolean
from services.primitives.actioncode_type import ActionCode
from framework.conformance import Conformance
from typing import Optional
def get_attr_link_name(class_name: str, attr_name: str):
return f"{class_name}_{attr_name}"
def get_slot_link_name(obj_name: str, attr_name: str):
return f"{obj_name}_{attr_name}"
# Object Diagrams service
@ -42,7 +44,7 @@ class OD:
slot = mm_od.get_slot(class_node, "abstract")
if slot != None:
is_abstract = read_primitive_value(self.bottom, slot, self.type_model)
is_abstract, _ = read_primitive_value(self.bottom, slot, self.type_model)
if is_abstract:
raise Exception("Cannot instantiate abstract class!")
@ -66,17 +68,17 @@ class OD:
def create_slot(self, attr_name: str, object_name: str, target_name: str):
class_name = self.get_class_of_object(object_name)
attr_link_name = get_attr_link_name(class_name, attr_name)
attr_link_name = self.get_attr_link_name(class_name, attr_name)
# An attribute-link is indistinguishable from an ordinary link:
slot_id = self.create_link(
get_attr_link_name(object_name, attr_name),
get_slot_link_name(object_name, attr_name),
attr_link_name, object_name, target_name)
return slot_id
def get_slot(self, object_node: UUID, attr_name: str):
# I really don't like how complex and inefficient it is to read an attribute of an object...
class_name = self._get_class_of_object(object_node)
attr_link_name = get_attr_link_name(class_name, attr_name)
attr_link_name = self.get_attr_link_name(class_name, attr_name)
type_edge, = self.bottom.read_outgoing_elements(self.type_model, attr_link_name)
for outgoing_edge in self.bottom.read_outgoing_edges(object_node):
if type_edge in self.bottom.read_outgoing_elements(outgoing_edge, "Morphism"):
@ -130,6 +132,16 @@ class OD:
self.create_model_ref(name, "String", string_node)
return name
def create_actioncode_value(self, name: str, value: str):
from services.primitives.actioncode_type import ActionCode
actioncode_node = self.bottom.create_node()
actioncode_t = ActionCode(actioncode_node, self.bottom.state)
actioncode_t.create(value)
# name = 'str-'+value # name of the ref to the created integer
# By convention, the type model must have a ModelRef named "Integer"
self.create_model_ref(name, "ActionCode", actioncode_node)
return name
# Identical to the same SCD method:
def create_model_ref(self, name: str, type_name: str, model: UUID):
# create element + morphism links
@ -137,7 +149,24 @@ class OD:
self.bottom.create_edge(self.model, element_node, name) # attach to model
type_node, = self.bottom.read_outgoing_elements(self.type_model, type_name) # retrieve type
self.bottom.create_edge(element_node, type_node, "Morphism") # create morphism link
# print('model ref:', name, type_name, element_node, model)
return element_node
# The edge connecting an object to the value of a slot must be named `{object_name}_{attr_name}`
def get_attr_link_name(self, class_name, attr_name):
assoc_name = f"{class_name}_{attr_name}"
type_edges = self.bottom.read_outgoing_elements(self.type_model, assoc_name)
if len(type_edges) == 1:
return assoc_name
else:
# look for attribute in the super-types
conf = Conformance(self.bottom.state, self.type_model, get_scd_mm(self.bottom))
conf.precompute_sub_types() # only need to know about subtypes
super_types = (s for s in conf.sub_types if class_name in conf.sub_types[s])
for s in super_types:
assoc_name = f"{s}_{attr_name}"
if len(self.bottom.read_outgoing_elements(self.type_model, assoc_name)) == 1:
return assoc_name
def create_link(self, link_name: Optional[str], assoc_name: str, src_obj_name: str, tgt_obj_name: str):
src_obj_node, = self.bottom.read_outgoing_elements(self.model, src_obj_name)
@ -246,6 +275,9 @@ def get_scd_mm_assoc_node(bottom: Bottom):
def get_scd_mm_modelref_node(bottom: Bottom):
return get_scd_mm_node(bottom, "ModelRef")
def get_scd_mm_actioncode_node(bottom: Bottom):
return get_scd_mm_node(bottom, "ActionCode")
def get_scd_mm_node(bottom: Bottom, node_name: str):
scd_metamodel = get_scd_mm(bottom)
node, = bottom.read_outgoing_elements(scd_metamodel, node_name)
@ -323,15 +355,17 @@ def get_attr_name(bottom, attr_edge: UUID):
def read_primitive_value(bottom, modelref: UUID, mm: UUID):
typ = get_type(bottom, modelref)
if not is_typed_by(bottom, typ, get_scd_mm_modelref_node(bottom)):
raise Exception("Assertion failed: argument must be typed by ModelRef")
raise Exception("Assertion failed: argument must be typed by ModelRef", typ)
referred_model = UUID(bottom.read_value(modelref))
typ_name = get_object_name(bottom, mm, typ)
if typ_name == "Integer":
return Integer(referred_model, bottom.state).read()
return Integer(referred_model, bottom.state).read(), typ_name
elif typ_name == "String":
return String(referred_model, bottom.state).read()
return String(referred_model, bottom.state).read(), typ_name
elif typ_name == "Boolean":
return Boolean(referred_model, bottom.state).read()
return Boolean(referred_model, bottom.state).read(), typ_name
elif typ_name == "ActionCode":
return ActionCode(referred_model, bottom.state).read(), typ_name
else:
raise Exception("Unimplemented type:", typ_name)