496 lines
26 KiB
Python
496 lines
26 KiB
Python
from services.bottom.V0 import Bottom
|
|
from uuid import UUID
|
|
from state.base import State
|
|
from typing import Dict, Tuple, Set, Any, List
|
|
from pprint import pprint
|
|
|
|
|
|
class Conformance:
|
|
def __init__(self, state: State, scd_model: UUID, model: UUID, type_model: UUID):
|
|
self.state = state
|
|
self.bottom = Bottom(state)
|
|
self.scd_model = scd_model
|
|
self.model = model
|
|
self.type_model = type_model
|
|
self.type_mapping: Dict[str, str] = {}
|
|
self.model_names = {
|
|
# map model elements to their names to prevent iterating too much
|
|
self.bottom.read_outgoing_elements(self.model, e)[0]: e
|
|
for e in self.bottom.read_keys(self.model)
|
|
}
|
|
self.type_model_names = {
|
|
# map type model elements to their names to prevent iterating too much
|
|
self.bottom.read_outgoing_elements(self.type_model, e)[0]: e
|
|
for e in self.bottom.read_keys(self.type_model)
|
|
}
|
|
self.sub_types: Dict[str, Set[str]] = {
|
|
k: set() for k in self.bottom.read_keys(self.type_model)
|
|
}
|
|
self.primitive_values: Dict[UUID, Any] = {}
|
|
self.abstract_types: List[str] = []
|
|
self.multiplicities: Dict[str, Tuple] = {}
|
|
self.source_multiplicities: Dict[str, Tuple] = {}
|
|
self.target_multiplicities: Dict[str, Tuple] = {}
|
|
self.structures = {}
|
|
self.matches = {}
|
|
self.candidates = {}
|
|
|
|
def check_nominal(self):
|
|
steps = [
|
|
self.check_typing,
|
|
self.check_link_typing,
|
|
self.check_multiplicities,
|
|
self.check_constraints
|
|
]
|
|
for step in steps:
|
|
conforms = step()
|
|
if not conforms:
|
|
return False
|
|
return True
|
|
|
|
def read_attribute(self, element: UUID, attr_name: str):
|
|
|
|
if element in self.type_model_names:
|
|
# type model element
|
|
element_name = self.type_model_names[element]
|
|
model = self.type_model
|
|
else:
|
|
# model element
|
|
element_name = self.model_names[element]
|
|
model = self.model
|
|
try:
|
|
attr_elem, = self.bottom.read_outgoing_elements(model, f"{element_name}.{attr_name}")
|
|
return self.primitive_values.get(attr_elem, self.bottom.read_value(attr_elem))
|
|
except ValueError:
|
|
return None
|
|
|
|
def precompute_sub_types(self):
|
|
inh_element, = self.bottom.read_outgoing_elements(self.scd_model, "Inheritance")
|
|
inh_links = []
|
|
for tm_element, tm_name in self.type_model_names.items():
|
|
morphisms = self.bottom.read_outgoing_elements(tm_element, "Morphism")
|
|
if inh_element in morphisms:
|
|
inh_links.append(tm_element)
|
|
|
|
for link in inh_links:
|
|
tm_source = self.bottom.read_edge_source(link)
|
|
tm_target = self.bottom.read_edge_target(link)
|
|
parent_name = self.type_model_names[tm_target]
|
|
child_name = self.type_model_names[tm_source]
|
|
self.sub_types[parent_name].add(child_name)
|
|
|
|
stop = False
|
|
while not stop:
|
|
stop = True
|
|
for child_name, child_children in self.sub_types.items():
|
|
for parent_name, parent_children in self.sub_types.items():
|
|
if child_name in parent_children:
|
|
original_size = len(parent_children)
|
|
parent_children.update(child_children)
|
|
if len(parent_children) != original_size:
|
|
stop = False
|
|
|
|
def deref_primitive_values(self):
|
|
ref_element, = self.bottom.read_outgoing_elements(self.scd_model, "ModelRef")
|
|
string_element, = self.bottom.read_outgoing_elements(self.scd_model, "String")
|
|
boolean_element, = self.bottom.read_outgoing_elements(self.scd_model, "Boolean")
|
|
integer_element, = self.bottom.read_outgoing_elements(self.scd_model, "Integer")
|
|
t_deref = []
|
|
t_refs = []
|
|
for tm_element, tm_name in self.type_model_names.items():
|
|
morphisms = self.bottom.read_outgoing_elements(tm_element, "Morphism")
|
|
if ref_element in morphisms:
|
|
t_refs.append(self.type_model_names[tm_element])
|
|
elif string_element in morphisms:
|
|
t_deref.append(tm_element)
|
|
elif boolean_element in morphisms:
|
|
t_deref.append(tm_element)
|
|
elif integer_element in morphisms:
|
|
t_deref.append(tm_element)
|
|
|
|
for elem in t_deref:
|
|
primitive_model = UUID(self.bottom.read_value(elem))
|
|
primitive_value_node, = self.bottom.read_outgoing_elements(primitive_model)
|
|
primitive_value = self.bottom.read_value(primitive_value_node)
|
|
self.primitive_values[elem] = primitive_value
|
|
|
|
for m_name, tm_name in self.type_mapping.items():
|
|
if tm_name in t_refs:
|
|
# dereference
|
|
m_element, = self.bottom.read_outgoing_elements(self.model, m_name)
|
|
primitive_model = UUID(self.bottom.read_value(m_element))
|
|
try:
|
|
primitive_value_node, = self.bottom.read_outgoing_elements(primitive_model)
|
|
primitive_value = self.bottom.read_value(primitive_value_node)
|
|
self.primitive_values[m_element] = primitive_value
|
|
except ValueError:
|
|
pass # multiple elements in model indicate that we're not dealing with a primitive
|
|
|
|
def precompute_multiplicities(self):
|
|
for tm_element, tm_name in self.type_model_names.items():
|
|
# class abstract flags and multiplicities
|
|
abstract = self.read_attribute(tm_element, "abstract")
|
|
lc = self.read_attribute(tm_element, "lower_cardinality")
|
|
uc = self.read_attribute(tm_element, "upper_cardinality")
|
|
if abstract:
|
|
self.abstract_types.append(tm_name)
|
|
if lc or uc:
|
|
mult = (
|
|
lc if lc is not None else float("-inf"),
|
|
uc if uc is not None else float("inf")
|
|
)
|
|
self.multiplicities[tm_name] = mult
|
|
# multiplicities for associations
|
|
slc = self.read_attribute(tm_element, "source_lower_cardinality")
|
|
suc = self.read_attribute(tm_element, "source_upper_cardinality")
|
|
if slc or suc:
|
|
mult = (
|
|
slc if slc is not None else float("-inf"),
|
|
suc if suc is not None else float("inf")
|
|
)
|
|
self.source_multiplicities[tm_name] = mult
|
|
tlc = self.read_attribute(tm_element, "target_lower_cardinality")
|
|
tuc = self.read_attribute(tm_element, "target_upper_cardinality")
|
|
if tlc or tuc:
|
|
mult = (
|
|
tlc if tlc is not None else float("-inf"),
|
|
tuc if tuc is not None else float("inf")
|
|
)
|
|
self.target_multiplicities[tm_name] = mult
|
|
# optional for attribute links
|
|
opt = self.read_attribute(tm_element, "optional")
|
|
if opt is not None:
|
|
mult = (0 if opt else 1, 1)
|
|
self.source_multiplicities[tm_name] = mult
|
|
self.target_multiplicities[tm_name] = mult
|
|
|
|
def get_type(self, element: UUID):
|
|
morphisms = self.bottom.read_outgoing_elements(element, "Morphism")
|
|
tm_element, = [m for m in morphisms if m in self.type_model_names.keys()]
|
|
return tm_element
|
|
|
|
def check_typing(self):
|
|
"""
|
|
for each element of model check whether a morphism
|
|
link exists to some element of type_model
|
|
"""
|
|
ref_element, = self.bottom.read_outgoing_elements(self.scd_model, "ModelRef")
|
|
model_names = self.bottom.read_keys(self.model)
|
|
for m_name in model_names:
|
|
m_element, = self.bottom.read_outgoing_elements(self.model, m_name)
|
|
try:
|
|
tm_element = self.get_type(m_element)
|
|
tm_name = self.type_model_names[tm_element]
|
|
self.type_mapping[m_name] = tm_name
|
|
if ref_element in self.bottom.read_outgoing_elements(tm_element, "Morphism"):
|
|
sub_m = UUID(self.bottom.read_value(m_element))
|
|
sub_tm = UUID(self.bottom.read_value(tm_element))
|
|
if not Conformance(self.state, self.scd_model, sub_m, sub_tm).check_nominal():
|
|
return False
|
|
except ValueError:
|
|
# no or too many morphism links found
|
|
print(f"Incorrectly typed element: {m_name}")
|
|
return False
|
|
return True
|
|
|
|
def check_link_typing(self):
|
|
self.precompute_sub_types()
|
|
for m_name, tm_name in self.type_mapping.items():
|
|
m_element, = self.bottom.read_outgoing_elements(self.model, m_name)
|
|
m_source = self.bottom.read_edge_source(m_element)
|
|
m_target = self.bottom.read_edge_target(m_element)
|
|
if m_source is None or m_target is None:
|
|
# element is not a link
|
|
continue
|
|
tm_element, = self.bottom.read_outgoing_elements(self.type_model, tm_name)
|
|
tm_source = self.bottom.read_edge_source(tm_element)
|
|
tm_target = self.bottom.read_edge_target(tm_element)
|
|
# check if source is typed correctly
|
|
source_name = self.model_names[m_source]
|
|
source_type_actual = self.type_mapping[source_name]
|
|
source_type_expected = self.type_model_names[tm_source]
|
|
if source_type_actual != source_type_expected:
|
|
if source_type_actual not in self.sub_types[source_type_expected]:
|
|
print(f"Invalid source type {source_type_actual} for element {m_name}")
|
|
return False
|
|
# check if target is typed correctly
|
|
target_name = self.model_names[m_target]
|
|
target_type_actual = self.type_mapping[target_name]
|
|
target_type_expected = self.type_model_names[tm_target]
|
|
if target_type_actual != target_type_expected:
|
|
if target_type_actual not in self.sub_types[target_type_expected]:
|
|
print(f"Invalid target type {target_type_actual} for element {m_name}")
|
|
return False
|
|
return True
|
|
|
|
def check_multiplicities(self):
|
|
self.deref_primitive_values()
|
|
self.precompute_multiplicities()
|
|
for tm_name in self.type_model_names.values():
|
|
# abstract classes
|
|
if tm_name in self.abstract_types:
|
|
type_count = list(self.type_mapping.values()).count(tm_name)
|
|
if type_count > 0:
|
|
print(f"Invalid instantiation of abstract class: {tm_name}")
|
|
return False
|
|
# class multiplicities
|
|
if tm_name in self.multiplicities:
|
|
lc, uc = self.multiplicities[tm_name]
|
|
type_count = list(self.type_mapping.values()).count(tm_name)
|
|
for sub_type in self.sub_types[tm_name]:
|
|
type_count += list(self.type_mapping.values()).count(sub_type)
|
|
if type_count < lc or type_count > uc:
|
|
print(f"Cardinality of type exceeds valid multiplicity range: {tm_name} ({type_count})")
|
|
return False
|
|
# association source multiplicities
|
|
if tm_name in self.source_multiplicities:
|
|
tm_element, = self.bottom.read_outgoing_elements(self.type_model, tm_name)
|
|
tm_source_element = self.bottom.read_edge_source(tm_element)
|
|
tm_source_name = self.type_model_names[tm_source_element]
|
|
lc, uc = self.source_multiplicities[tm_name]
|
|
for i, t in self.type_mapping.items():
|
|
if t == tm_source_name or t in self.sub_types[tm_source_name]:
|
|
count = 0
|
|
i_element, = self.bottom.read_outgoing_elements(self.model, i)
|
|
outgoing = self.bottom.read_outgoing_edges(i_element)
|
|
for o in outgoing:
|
|
try:
|
|
if self.type_mapping[self.model_names[o]] == tm_name:
|
|
count += 1
|
|
except KeyError:
|
|
pass # for elements not part of model, e.g. morphism links
|
|
if count < lc or count > uc:
|
|
print(f"Source cardinality of type {tm_name} exceeds valid multiplicity range in {i}.")
|
|
return False
|
|
|
|
# association target multiplicities
|
|
if tm_name in self.target_multiplicities:
|
|
tm_element, = self.bottom.read_outgoing_elements(self.type_model, tm_name)
|
|
tm_target_element = self.bottom.read_edge_source(tm_element)
|
|
tm_target_name = self.type_model_names[tm_target_element]
|
|
lc, uc = self.target_multiplicities[tm_name]
|
|
for i, t in self.type_mapping.items():
|
|
if t == tm_target_name or t in self.sub_types[tm_target_name]:
|
|
count = 0
|
|
i_element, = self.bottom.read_outgoing_elements(self.model, i)
|
|
outgoing = self.bottom.read_outgoing_edges(i_element)
|
|
for o in outgoing:
|
|
try:
|
|
if self.type_mapping[self.model_names[o]] == tm_name:
|
|
count += 1
|
|
except KeyError:
|
|
pass # for elements not part of model, e.g. morphism links
|
|
if count < lc or count > uc:
|
|
print(f"Target cardinality of type {tm_name} exceeds valid multiplicity range in {i}.")
|
|
return False
|
|
return True
|
|
|
|
def evaluate_constraint(self, code, **kwargs):
|
|
funcs = {
|
|
'read_value': self.state.read_value
|
|
}
|
|
return eval(
|
|
code,
|
|
{'__builtins__': {'isinstance': isinstance, 'print': print,
|
|
'int': int, 'float': float, 'bool': bool, 'str': str, 'tuple': tuple}
|
|
}, # globals
|
|
{**kwargs, **funcs} # locals
|
|
)
|
|
|
|
def check_constraints(self):
|
|
# local constraints
|
|
for m_name, tm_name in self.type_mapping.items():
|
|
if tm_name != "GlobalConstraint":
|
|
tm_element, = self.bottom.read_outgoing_elements(self.type_model, tm_name)
|
|
code = self.read_attribute(tm_element, "constraint")
|
|
if code is not None:
|
|
morphisms = self.bottom.read_incoming_elements(tm_element, "Morphism")
|
|
morphisms = [m for m in morphisms if m in self.model_names]
|
|
for m_element in morphisms:
|
|
if not self.evaluate_constraint(code, element=m_element):
|
|
return False
|
|
|
|
# global constraints
|
|
for m_name, tm_name in self.type_mapping.items():
|
|
if tm_name == "GlobalConstraint":
|
|
tm_element, = self.bottom.read_outgoing_elements(self.type_model, tm_name)
|
|
code = self.read_attribute(tm_element, "constraint")
|
|
if code is not None:
|
|
if not self.evaluate_constraint(code, model=self.model):
|
|
return False
|
|
return True
|
|
|
|
def precompute_structures(self):
|
|
self.precompute_sub_types()
|
|
scd_elements = self.bottom.read_outgoing_elements(self.scd_model)
|
|
# collect types
|
|
class_element, = self.bottom.read_outgoing_elements(self.scd_model, "Class")
|
|
association_element, = self.bottom.read_outgoing_elements(self.scd_model, "Association")
|
|
for tm_element, tm_name in self.type_model_names.items():
|
|
# retrieve elements that tm_element is a morphism of
|
|
morphisms = self.bottom.read_outgoing_elements(tm_element, "Morphism")
|
|
morphism, = [m for m in morphisms if m in scd_elements]
|
|
# check if tm_element is a morphism of AttributeLink
|
|
if class_element == morphism or association_element == morphism:
|
|
self.structures[tm_name] = set()
|
|
# collect type structures
|
|
# retrieve AttributeLink to check whether element is a morphism of AttributeLink
|
|
attr_link_element, = self.bottom.read_outgoing_elements(self.scd_model, "AttributeLink")
|
|
for tm_element, tm_name in self.type_model_names.items():
|
|
# retrieve elements that tm_element is a morphism of
|
|
morphisms = self.bottom.read_outgoing_elements(tm_element, "Morphism")
|
|
morphism, = [m for m in morphisms if m in scd_elements]
|
|
# check if tm_element is a morphism of AttributeLink
|
|
if attr_link_element == morphism:
|
|
# retrieve attributes of attribute link, i.e. 'name' and 'optional'
|
|
attrs = self.bottom.read_outgoing_elements(tm_element)
|
|
name_model_node, = filter(lambda x: self.type_model_names.get(x, "").endswith(".name"), attrs)
|
|
opt_model_node, = filter(lambda x: self.type_model_names.get(x, "").endswith(".optional"), attrs)
|
|
# get attr name value
|
|
name_model = UUID(self.bottom.read_value(name_model_node))
|
|
name_node, = self.bottom.read_outgoing_elements(name_model)
|
|
name = self.bottom.read_value(name_node)
|
|
# get attr opt value
|
|
opt_model = UUID(self.bottom.read_value(opt_model_node))
|
|
opt_node, = self.bottom.read_outgoing_elements(opt_model)
|
|
opt = self.bottom.read_value(opt_node)
|
|
# get attr type name
|
|
source_type_node = self.bottom.read_edge_source(tm_element)
|
|
source_type_name = self.type_model_names[source_type_node]
|
|
target_type_node = self.bottom.read_edge_target(tm_element)
|
|
target_type_name = self.type_model_names[target_type_node]
|
|
# add attribute to the structure of its source type
|
|
# attribute is stored as a (name, optional, type) triple
|
|
self.structures.setdefault(source_type_name, set()).add((name, opt, target_type_name))
|
|
# extend structures of sub types with attrs of super types
|
|
for super_type, sub_types in self.sub_types.items():
|
|
for sub_type in sub_types:
|
|
self.structures.setdefault(sub_type, set()).update(self.structures[super_type])
|
|
# filter out abstract types, as they cannot be instantiated
|
|
# retrieve Class_abstract to check whether element is a morphism of Class_abstract
|
|
class_abs_element, = self.bottom.read_outgoing_elements(self.scd_model, "Class_abstract")
|
|
for tm_element, tm_name in self.type_model_names.items():
|
|
# retrieve elements that tm_element is a morphism of
|
|
morphisms = self.bottom.read_outgoing_elements(tm_element, "Morphism")
|
|
morphism, = [m for m in morphisms if m in scd_elements]
|
|
# check if tm_element is a morphism of Class_abstract
|
|
if class_abs_element == morphism:
|
|
# retrieve 'abstract' attribute value
|
|
target_node = self.bottom.read_edge_target(tm_element)
|
|
abst_model = UUID(self.bottom.read_value(target_node))
|
|
abst_node, = self.bottom.read_outgoing_elements(abst_model)
|
|
is_abstract = self.bottom.read_value(abst_node)
|
|
# retrieve type name
|
|
source_node = self.bottom.read_edge_source(tm_element)
|
|
type_name = self.type_model_names[source_node]
|
|
if is_abstract:
|
|
self.structures.pop(type_name)
|
|
|
|
def match_structures(self):
|
|
ref_element, = self.bottom.read_outgoing_elements(self.scd_model, "ModelRef")
|
|
# matching
|
|
for m_element, m_name in self.model_names.items():
|
|
is_edge = self.bottom.read_edge_source(m_element) is not None
|
|
for type_name, structure in self.structures.items():
|
|
tm_element, = self.bottom.read_outgoing_elements(self.type_model, type_name)
|
|
type_is_edge = self.bottom.read_edge_source(tm_element) is not None
|
|
if is_edge == type_is_edge:
|
|
matched = 0
|
|
for name, optional, attr_type in structure:
|
|
try:
|
|
attr, = self.bottom.read_outgoing_elements(self.model, f"{m_name}.{name}")
|
|
attr_tm, = self.bottom.read_outgoing_elements(self.type_model, attr_type)
|
|
# if attribute is a modelref, we need to check whether it
|
|
# linguistically conforms to the specified type
|
|
# if its an internally defined attribute, this will be checked by constraints
|
|
morphisms = self.bottom.read_outgoing_elements(attr_tm, "Morphism")
|
|
if ref_element in morphisms:
|
|
# check conformance of reference model
|
|
type_model_uuid = UUID(self.bottom.read_value(attr_tm))
|
|
model_uuid = UUID(self.bottom.read_value(attr))
|
|
attr_conforms = Conformance(self.state, self.scd_model, model_uuid, type_model_uuid)\
|
|
.check_nominal()
|
|
else:
|
|
# eval constraints
|
|
code = self.read_attribute(attr_tm, "constraint")
|
|
if code is not None:
|
|
attr_conforms = self.evaluate_constraint(code, element=attr)
|
|
matched += 1
|
|
except ValueError:
|
|
# attr not found or failed parsing UUID
|
|
if optional:
|
|
continue
|
|
else:
|
|
break
|
|
if matched == len(structure):
|
|
self.candidates.setdefault(m_name, set()).add(type_name)
|
|
# filter out candidates for links based on source and target types
|
|
for m_element, m_name in self.model_names.items():
|
|
is_edge = self.bottom.read_edge_source(m_element) is not None
|
|
if is_edge and m_name in self.candidates:
|
|
m_source = self.bottom.read_edge_source(m_element)
|
|
m_target = self.bottom.read_edge_target(m_element)
|
|
source_candidates = self.candidates[self.model_names[m_source]]
|
|
target_candidates = self.candidates[self.model_names[m_target]]
|
|
remove = set()
|
|
for candidate_name in self.candidates[m_name]:
|
|
candidate_element, = self.bottom.read_outgoing_elements(self.type_model, candidate_name)
|
|
candidate_source = self.type_model_names[self.bottom.read_edge_source(candidate_element)]
|
|
if candidate_source not in source_candidates:
|
|
remove.add(candidate_name)
|
|
candidate_target = self.type_model_names[self.bottom.read_edge_target(candidate_element)]
|
|
if candidate_target not in target_candidates:
|
|
remove.add(candidate_name)
|
|
self.candidates[m_name] = self.candidates[m_name].difference(remove)
|
|
|
|
def build_morphisms(self):
|
|
if not all([len(c) == 1 for c in self.candidates.values()]):
|
|
print("Ambiguous structural matches found, unable to build unique morphism.")
|
|
return False
|
|
mapping = {k: v.pop() for k, v in self.candidates.items()}
|
|
for m_name, tm_name in mapping.items():
|
|
# morphism to class/assoc
|
|
m_element, = self.bottom.read_outgoing_elements(self.model, m_name)
|
|
tm_element, = self.bottom.read_outgoing_elements(self.type_model, tm_name)
|
|
self.bottom.create_edge(m_element, tm_element, "Morphism")
|
|
# morphism for attributes and attribute links
|
|
structure = self.structures[tm_name]
|
|
for attr_name, _, attr_type in structure:
|
|
try:
|
|
# attribute node
|
|
attr_element, = self.bottom.read_outgoing_elements(self.model, f"{m_name}.{attr_name}")
|
|
attr_type_element, = self.bottom.read_outgoing_elements(self.type_model, attr_type)
|
|
self.bottom.create_edge(attr_element, attr_type_element, "Morphism")
|
|
# attribute link
|
|
attr_link_element, = self.bottom.read_outgoing_elements(self.model, f"{m_name}.{attr_name}_link")
|
|
attr_link_type_element, = self.bottom.read_outgoing_elements(self.type_model, f"{tm_name}_{attr_name}")
|
|
self.bottom.create_edge(attr_link_element, attr_link_type_element, "Morphism")
|
|
except ValueError:
|
|
pass
|
|
|
|
|
|
if __name__ == '__main__':
|
|
from state.devstate import DevState as State
|
|
s = State()
|
|
from bootstrap.scd import bootstrap_scd
|
|
scd = bootstrap_scd(s)
|
|
from bootstrap.pn import bootstrap_pn
|
|
ltm_pn = bootstrap_pn(s, "PN")
|
|
ltm_pn_lola = bootstrap_pn(s, "PNlola")
|
|
from services.pn import PN
|
|
my_pn = s.create_node()
|
|
PNserv = PN(ltm_pn, my_pn, s)
|
|
PNserv.create_place("p1", 5)
|
|
PNserv.create_place("p2", 0)
|
|
PNserv.create_transition("t1")
|
|
PNserv.create_p2t("p1", "t1", 1)
|
|
PNserv.create_t2p("t1", "p2", 1)
|
|
|
|
cf = Conformance(s, scd, my_pn, ltm_pn_lola)
|
|
# cf = Conformance(s, scd, ltm_pn, scd)
|
|
cf.precompute_structures()
|
|
cf.match_structures()
|
|
cf.build_morphisms()
|
|
print(cf.check_nominal())
|
|
|
|
|