def _instantiate(self, component, count=1):
for index in range(count):
instance_name = component.name.lower() + "_%d" % index
z3_instance = DefineObject(instance_name,
self.find("CInstance"),
suspended=True)
self.define(instance_name, z3_instance)
z3_instance.force_value("definition", self.find(component.name))
# define partners
partners = []
for each_required_service in component.required_services:
partner_name = self.qualified_name(instance_name,
each_required_service.name)
z3_partner = DefineObject(partner_name,
self.find("Partner"),
suspended=True)
self.define(partner_name, z3_partner)
partners.append(z3_partner)
z3_partner.force_value("service",
self.find(each_required_service.name))
z3_instance.force_value("partners", partners)
values = []
for each_variable in component.variables:
qualified_variable_name = "%s_%s" % (component.name,
each_variable.name)
value_name = "%s_%s" % (instance_name, each_variable.name)
z3_value = DefineObject(value_name,
self.find("Value"),
suspended=True)
self.define(value_name, z3_value)
if each_variable.domain:
if each_variable.value_type != "Integer":
self._value_constraints.append(
"And([%s.value >= 0, %s.value < %d])" %
(value_name, value_name, len(
each_variable.domain)))
else:
clauses = ",".join("%s.value == %d" % (value_name, v)
for v in each_variable.domain)
self._value_constraints.append("Or([" + clauses + "])")
z3_value.force_value("variable",
self.find(qualified_variable_name))
values.append(z3_value)
z3_instance.force_value("configuration", values)
def _define_all_variables(self, component):
for each_variable in component.variables:
qualified_name = self.qualified_name(component.name,
each_variable.name)
z3_variable = DefineObject(qualified_name, self.find("Variable"))
self.define(qualified_name, z3_variable)
def _define_all_components(self, model):
for each_component in model.components:
z3_component = DefineObject(each_component.name,
self.find("Component"))
self.define(each_component.name, z3_component)
self._define_all_variables(each_component)
provide_services = [self.find(each.name) \
for each in each_component.provided_services]
z3_component.force_value("provide_services", provide_services)
require_services = [self.find(each.name) \
for each in each_component.required_services]
z3_component.force_value("require_services", require_services)
provide_features = [self.find(each.name) \
for each in each_component.provided_features]
z3_component.force_value("provide_features", provide_features)
require_features = [self.find(each.name) \
for each in each_component.required_features]
z3_component.force_value("require_features", require_features)
settings = [self.find(self.qualified_name(each_component.name,
each.name)) \
for each in each_component.variables]
z3_component.force_value("settings", settings)
self._instantiate(each_component, 1)
def _define_all_features(self, model):
for each_feature in model.features:
z3_feature = DefineObject(each_feature.name, self.find("Feature"))
self.define(each_feature.name, z3_feature)
def _define_all_services(self, model):
for each_service in model.services:
z3_service = DefineObject(each_service.name,
self.find("Service"),
suspended=True)
self.define(each_service.name, z3_service)