class SingletonScopeCache(ScopeCache):
def __init__(self, name: str, scoped_components: List[type]):
"""
:param name: human-readable name
:param scoped_components: components managed by this scope
"""
super().__init__(name)
self.scoped_components = Stream(scoped_components).map(
lambda clazz: (clazz, None)).toDict()
def handles_component(self, component: type) -> bool:
return component in self.scoped_components.keys()
def is_stored(self, component: type) -> bool:
return self.scoped_components[component] is not None
def get(self, component: type) -> object:
stored_component = self.scoped_components.get(component)
if stored_component is None:
raise UninstantiatedObjectException(component)
return stored_component
def store(self, component: type, instance: object):
if component not in self.scoped_components.keys():
raise ComponentNotHandledByScopeException(component)
self.scoped_components[component] = instance
class ScopeCache(object):
def __init__(self, scope: Annotation, scoped_components: List[type]):
self.scope = scope
self.scoped_components = Stream(scoped_components).map(
lambda clazz: (clazz, None)).toDict()
def handles_component(self, component: type) -> bool:
return component in self.scoped_components.keys()
def is_stored(self, component: type) -> bool:
return self.scoped_components[component] is not None
def get(self, component: type) -> object:
stored_component = self.scoped_components.get(component)
if stored_component is None:
raise UninstantiatedObjectException(component)
return stored_component
def store(self, component: type, instance: object):
if component not in self.scoped_components.keys():
raise ComponentNotHandledByScopeException(component)
self.scoped_components[component] = instance