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This commit is contained in:
Sven Heidemann
2023-04-04 13:30:00 +02:00
parent 01bc746092
commit c4a71de83f
12 changed files with 200 additions and 178 deletions
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26
src/cpl_core/dependency_injection/service_provider.py
View File

@@ -28,7 +28,12 @@ class ServiceProvider(ServiceProviderABC):
Database representation
"""
def __init__(self, service_descriptors: list[ServiceDescriptor], config: ConfigurationABC, db_context: Optional[DatabaseContextABC]):
def __init__(
self,
service_descriptors: list[ServiceDescriptor],
config: ConfigurationABC,
db_context: Optional[DatabaseContextABC],
):
ServiceProviderABC.__init__(self)
self._service_descriptors: list[ServiceDescriptor] = service_descriptors
@@ -45,7 +50,9 @@ class ServiceProvider(ServiceProviderABC):
def _get_service(self, parameter: Parameter) -> Optional[object]:
for descriptor in self._service_descriptors:
if descriptor.service_type == parameter.annotation or issubclass(descriptor.service_type, parameter.annotation):
if descriptor.service_type == parameter.annotation or issubclass(
descriptor.service_type, parameter.annotation
):
if descriptor.implementation is not None:
return descriptor.implementation
@@ -77,8 +84,7 @@ class ServiceProvider(ServiceProviderABC):
params = []
for param in sig.parameters.items():
parameter = param[1]
if parameter.name != 'self' and parameter.annotation != Parameter.empty:
if parameter.name != "self" and parameter.annotation != Parameter.empty:
if typing.get_origin(parameter.annotation) == list:
params.append(self._get_services(typing.get_args(parameter.annotation)[0]))
@@ -121,7 +127,9 @@ class ServiceProvider(ServiceProviderABC):
self._scope = scope
def create_scope(self) -> ScopeABC:
sb = ScopeBuilder(ServiceProvider(copy.deepcopy(self._service_descriptors), self._configuration, self._database_context))
sb = ScopeBuilder(
ServiceProvider(copy.deepcopy(self._service_descriptors), self._configuration, self._database_context)
)
return sb.build()
def get_service(self, service_type: T, *args, **kwargs) -> Optional[T]:
@@ -134,7 +142,11 @@ class ServiceProvider(ServiceProviderABC):
return result.implementation
implementation = self.build_service(service_type, *args, **kwargs)
if result.lifetime == ServiceLifetimeEnum.singleton or result.lifetime == ServiceLifetimeEnum.scoped and self._scope is not None:
if (
result.lifetime == ServiceLifetimeEnum.singleton
or result.lifetime == ServiceLifetimeEnum.scoped
and self._scope is not None
):
result.implementation = implementation
return implementation
@@ -143,7 +155,7 @@ class ServiceProvider(ServiceProviderABC):
implementations = []
if typing.get_origin(service_type) != list:
raise Exception(f'Invalid type {service_type}! Expected list of type')
raise Exception(f"Invalid type {service_type}! Expected list of type")
implementations.extend(self._get_services(typing.get_args(service_type)[0]))

6
src/cpl_core/dependency_injection/service_provider_abc.py
View File

@@ -10,14 +10,14 @@ from cpl_core.type import T
class ServiceProviderABC(ABC):
r"""ABC for the class :class:`cpl_core.dependency_injection.service_provider.ServiceProvider`"""
_provider: Optional['ServiceProviderABC'] = None
_provider: Optional["ServiceProviderABC"] = None
@abstractmethod
def __init__(self):
pass
@classmethod
def set_global_provider(cls, provider: 'ServiceProviderABC'):
def set_global_provider(cls, provider: "ServiceProviderABC"):
cls._provider = provider
@abstractmethod
@@ -108,7 +108,7 @@ class ServiceProviderABC(ABC):
@functools.wraps(f)
def inner(*args, **kwargs):
if cls._provider is None:
raise Exception(f'{cls.__name__} not build!')
raise Exception(f"{cls.__name__} not build!")
injection = [x for x in cls._provider.build_by_signature(signature(f)) if x is not None]
return f(*args, *injection, **kwargs)