def database_admin_api(self): """Helper for session-related API calls.""" if self._database_admin_api is None: if self._emulator_host is not None: transport = database_admin_grpc_transport.DatabaseAdminGrpcTransport( channel=grpc.insecure_channel(target=self._emulator_host)) self._database_admin_api = DatabaseAdminClient( client_info=self._client_info, client_options=self._client_options, transport=transport, ) else: self._database_admin_api = DatabaseAdminClient( credentials=self.credentials, client_info=self._client_info, client_options=self._client_options, ) return self._database_admin_api
def __init__(self, transport=None, channel=None, credentials=None, client_config=None, client_info=None): """Constructor. Args: transport (Union[~.DatabaseAdminGrpcTransport, Callable[[~.Credentials, type], ~.DatabaseAdminGrpcTransport]): A transport instance, responsible for actually making the API calls. The default transport uses the gRPC protocol. This argument may also be a callable which returns a transport instance. Callables will be sent the credentials as the first argument and the default transport class as the second argument. channel (grpc.Channel): DEPRECATED. A ``Channel`` instance through which to make calls. This argument is mutually exclusive with ``credentials``; providing both will raise an exception. credentials (google.auth.credentials.Credentials): The authorization credentials to attach to requests. These credentials identify this application to the service. If none are specified, the client will attempt to ascertain the credentials from the environment. This argument is mutually exclusive with providing a transport instance to ``transport``; doing so will raise an exception. client_config (dict): DEPRECATED. A dictionary of call options for each method. If not specified, the default configuration is used. client_info (google.api_core.gapic_v1.client_info.ClientInfo): The client info used to send a user-agent string along with API requests. If ``None``, then default info will be used. Generally, you only need to set this if you're developing your own client library. """ # Raise deprecation warnings for things we want to go away. if client_config is not None: warnings.warn('The `client_config` argument is deprecated.', PendingDeprecationWarning, stacklevel=2) else: client_config = database_admin_client_config.config if channel: warnings.warn( 'The `channel` argument is deprecated; use ' '`transport` instead.', PendingDeprecationWarning, stacklevel=2) # Instantiate the transport. # The transport is responsible for handling serialization and # deserialization and actually sending data to the service. if transport: if callable(transport): self.transport = transport( credentials=credentials, default_class=database_admin_grpc_transport. DatabaseAdminGrpcTransport, ) else: if credentials: raise ValueError( 'Received both a transport instance and ' 'credentials; these are mutually exclusive.') self.transport = transport else: self.transport = database_admin_grpc_transport.DatabaseAdminGrpcTransport( address=self.SERVICE_ADDRESS, channel=channel, credentials=credentials, ) if client_info is None: client_info = google.api_core.gapic_v1.client_info.ClientInfo( gapic_version=_GAPIC_LIBRARY_VERSION, ) else: client_info.gapic_version = _GAPIC_LIBRARY_VERSION self._client_info = client_info # Parse out the default settings for retry and timeout for each RPC # from the client configuration. # (Ordinarily, these are the defaults specified in the `*_config.py` # file next to this one.) self._method_configs = google.api_core.gapic_v1.config.parse_method_configs( client_config['interfaces'][self._INTERFACE_NAME], ) # Save a dictionary of cached API call functions. # These are the actual callables which invoke the proper # transport methods, wrapped with `wrap_method` to add retry, # timeout, and the like. self._inner_api_calls = {}