def DCC_class_level(self, class_entity: und.Ent):
"""
DCC - Class Level Direct Class Coupling
:param class_entity: The class entity
:return: Number of other classes a class relates to, either through a shared attribute or
a parameter in a method.
"""
others = list()
if "Interface" in class_entity.kindname():
return 0
for ref in class_entity.refs("Define", "Variable"):
if ref.ent().type() in self.all_classes:
others.append(ref.ent().type())
kind_filter = "Method ~Unknown ~Jar ~Library ~Constructor ~Implicit ~Lambda ~External"
for ref in class_entity.refs("Define", kind_filter):
for ref2 in ref.ent().refs("Java Define", "Java Parameter"):
if ref2.ent().type() in self.all_classes:
others.append(ref2.ent().type())
for ref in class_entity.refs("Define", kind_filter):
for ref2 in ref.ent().refs("Java Use Return"):
if ref2.ent().type() in self.all_classes:
others.append(ref2.ent().type())
return len(set(others))
def NOP_class_level(self, class_entity: und.Ent):
"""
NOP - Class Level Number of Polymorphic Methods
Any method that can be used by a class and its descendants.
:param class_entity: The class entity
:return: Counts of the number of methods in a class excluding private, static and final ones.
"""
if "Final" in class_entity.kindname():
return 0
all_methods = class_entity.metric(['CountDeclMethodAll'
]).get('CountDeclMethodAll', 0)
# private_methods = class_entity.metric(['CountDeclMethodPrivate']).get('CountDeclMethodPrivate', 0)
# static_methods = class_entity.metric(['CountDeclClassMethod']).get('CountDeclClassMethod', 0)
# final_methods = 0
if "Interface" in class_entity.kindname():
return all_methods
private_or_static_or_final = 0
kind_filter = 'Java Method ~Jar ~Library ~Constructor ~Implicit ~Lambda ~External'
for ref in class_entity.refs('Define', kind_filter):
if "Final" in ref.ent().kindname() or "Private" in ref.ent(
).kindname() or "Static" in ref.ent().kindname():
private_or_static_or_final += 1
number_of_polymorphic_methods = all_methods - private_or_static_or_final
# print(class_entity.longname(), number_of_polymorphic_methods)
return number_of_polymorphic_methods if number_of_polymorphic_methods >= 0 else 0
def MOA_class_level(self, class_entity: und.Ent):
"""
MOA - Class Level Measure of Aggregation
:param class_entity: The class entity.
:return: Count of number of attributes whose type is user defined class(es).
"""
counter = 0
for ref in class_entity.refs("Define, Typed, Set, Create",
"Java Variable, Parameter"):
if ref.ent().type() in self.user_defined_classes:
counter += 1
filter_ = "Method ~Unknown ~Jar ~Library ~Constructor ~Implicit ~Lambda ~External"
for ref in class_entity.refs("Define, Typed, Set, Create", filter_):
for ref2 in ref.ent().refs(
"Define, Typed, Set, Create",
"Java Variable ~Unknown, Java Parameter"):
if ref2.ent().type() in self.user_defined_classes:
counter += 1
return counter
