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Diffstat (limited to 'google/api_core/operations_v1/abstract_operations_client.py')
| -rw-r--r-- | google/api_core/operations_v1/abstract_operations_client.py | 564 |
1 files changed, 564 insertions, 0 deletions
diff --git a/google/api_core/operations_v1/abstract_operations_client.py b/google/api_core/operations_v1/abstract_operations_client.py new file mode 100644 index 0000000..631094e --- /dev/null +++ b/google/api_core/operations_v1/abstract_operations_client.py @@ -0,0 +1,564 @@ +# -*- coding: utf-8 -*- +# Copyright 2020 Google LLC +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +from collections import OrderedDict +from distutils import util +import os +import re +from typing import Dict, Optional, Sequence, Tuple, Type, Union + +from google.api_core import client_options as client_options_lib # type: ignore +from google.api_core import gapic_v1 # type: ignore +from google.api_core import retry as retries # type: ignore +from google.api_core.operations_v1 import pagers +from google.api_core.operations_v1.transports.base import ( + DEFAULT_CLIENT_INFO, + OperationsTransport, +) +from google.api_core.operations_v1.transports.rest import OperationsRestTransport +from google.auth import credentials as ga_credentials # type: ignore +from google.auth.exceptions import MutualTLSChannelError # type: ignore +from google.auth.transport import mtls # type: ignore +from google.longrunning import operations_pb2 +from google.oauth2 import service_account # type: ignore + +OptionalRetry = Union[retries.Retry, object] + + +class AbstractOperationsClientMeta(type): + """Metaclass for the Operations client. + + This provides class-level methods for building and retrieving + support objects (e.g. transport) without polluting the client instance + objects. + """ + + _transport_registry = OrderedDict() # type: Dict[str, Type[OperationsTransport]] + _transport_registry["rest"] = OperationsRestTransport + + def get_transport_class( + cls, label: Optional[str] = None, + ) -> Type[OperationsTransport]: + """Returns an appropriate transport class. + + Args: + label: The name of the desired transport. If none is + provided, then the first transport in the registry is used. + + Returns: + The transport class to use. + """ + # If a specific transport is requested, return that one. + if label: + return cls._transport_registry[label] + + # No transport is requested; return the default (that is, the first one + # in the dictionary). + return next(iter(cls._transport_registry.values())) + + +class AbstractOperationsClient(metaclass=AbstractOperationsClientMeta): + """Manages long-running operations with an API service. + + When an API method normally takes long time to complete, it can be + designed to return [Operation][google.api_core.operations_v1.Operation] to the + client, and the client can use this interface to receive the real + response asynchronously by polling the operation resource, or pass + the operation resource to another API (such as Google Cloud Pub/Sub + API) to receive the response. Any API service that returns + long-running operations should implement the ``Operations`` + interface so developers can have a consistent client experience. + """ + + @staticmethod + def _get_default_mtls_endpoint(api_endpoint): + """Converts api endpoint to mTLS endpoint. + + Convert "*.sandbox.googleapis.com" and "*.googleapis.com" to + "*.mtls.sandbox.googleapis.com" and "*.mtls.googleapis.com" respectively. + Args: + api_endpoint (Optional[str]): the api endpoint to convert. + Returns: + str: converted mTLS api endpoint. + """ + if not api_endpoint: + return api_endpoint + + mtls_endpoint_re = re.compile( + r"(?P<name>[^.]+)(?P<mtls>\.mtls)?(?P<sandbox>\.sandbox)?(?P<googledomain>\.googleapis\.com)?" + ) + + m = mtls_endpoint_re.match(api_endpoint) + name, mtls, sandbox, googledomain = m.groups() + if mtls or not googledomain: + return api_endpoint + + if sandbox: + return api_endpoint.replace( + "sandbox.googleapis.com", "mtls.sandbox.googleapis.com" + ) + + return api_endpoint.replace(".googleapis.com", ".mtls.googleapis.com") + + DEFAULT_ENDPOINT = "longrunning.googleapis.com" + DEFAULT_MTLS_ENDPOINT = _get_default_mtls_endpoint.__func__( # type: ignore + DEFAULT_ENDPOINT + ) + + @classmethod + def from_service_account_info(cls, info: dict, *args, **kwargs): + """Creates an instance of this client using the provided credentials + info. + + Args: + info (dict): The service account private key info. + args: Additional arguments to pass to the constructor. + kwargs: Additional arguments to pass to the constructor. + + Returns: + AbstractOperationsClient: The constructed client. + """ + credentials = service_account.Credentials.from_service_account_info(info) + kwargs["credentials"] = credentials + return cls(*args, **kwargs) + + @classmethod + def from_service_account_file(cls, filename: str, *args, **kwargs): + """Creates an instance of this client using the provided credentials + file. + + Args: + filename (str): The path to the service account private key json + file. + args: Additional arguments to pass to the constructor. + kwargs: Additional arguments to pass to the constructor. + + Returns: + AbstractOperationsClient: The constructed client. + """ + credentials = service_account.Credentials.from_service_account_file(filename) + kwargs["credentials"] = credentials + return cls(*args, **kwargs) + + from_service_account_json = from_service_account_file + + @property + def transport(self) -> OperationsTransport: + """Returns the transport used by the client instance. + + Returns: + OperationsTransport: The transport used by the client + instance. + """ + return self._transport + + @staticmethod + def common_billing_account_path(billing_account: str,) -> str: + """Returns a fully-qualified billing_account string.""" + return "billingAccounts/{billing_account}".format( + billing_account=billing_account, + ) + + @staticmethod + def parse_common_billing_account_path(path: str) -> Dict[str, str]: + """Parse a billing_account path into its component segments.""" + m = re.match(r"^billingAccounts/(?P<billing_account>.+?)$", path) + return m.groupdict() if m else {} + + @staticmethod + def common_folder_path(folder: str,) -> str: + """Returns a fully-qualified folder string.""" + return "folders/{folder}".format(folder=folder,) + + @staticmethod + def parse_common_folder_path(path: str) -> Dict[str, str]: + """Parse a folder path into its component segments.""" + m = re.match(r"^folders/(?P<folder>.+?)$", path) + return m.groupdict() if m else {} + + @staticmethod + def common_organization_path(organization: str,) -> str: + """Returns a fully-qualified organization string.""" + return "organizations/{organization}".format(organization=organization,) + + @staticmethod + def parse_common_organization_path(path: str) -> Dict[str, str]: + """Parse a organization path into its component segments.""" + m = re.match(r"^organizations/(?P<organization>.+?)$", path) + return m.groupdict() if m else {} + + @staticmethod + def common_project_path(project: str,) -> str: + """Returns a fully-qualified project string.""" + return "projects/{project}".format(project=project,) + + @staticmethod + def parse_common_project_path(path: str) -> Dict[str, str]: + """Parse a project path into its component segments.""" + m = re.match(r"^projects/(?P<project>.+?)$", path) + return m.groupdict() if m else {} + + @staticmethod + def common_location_path(project: str, location: str,) -> str: + """Returns a fully-qualified location string.""" + return "projects/{project}/locations/{location}".format( + project=project, location=location, + ) + + @staticmethod + def parse_common_location_path(path: str) -> Dict[str, str]: + """Parse a location path into its component segments.""" + m = re.match(r"^projects/(?P<project>.+?)/locations/(?P<location>.+?)$", path) + return m.groupdict() if m else {} + + def __init__( + self, + *, + credentials: Optional[ga_credentials.Credentials] = None, + transport: Union[str, OperationsTransport, None] = None, + client_options: Optional[client_options_lib.ClientOptions] = None, + client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO, + ) -> None: + """Instantiates the operations client. + + Args: + credentials (Optional[google.auth.credentials.Credentials]): The + authorization credentials to attach to requests. These + credentials identify the application to the service; if none + are specified, the client will attempt to ascertain the + credentials from the environment. + transport (Union[str, OperationsTransport]): The + transport to use. If set to None, a transport is chosen + automatically. + client_options (google.api_core.client_options.ClientOptions): Custom options for the + client. It won't take effect if a ``transport`` instance is provided. + (1) The ``api_endpoint`` property can be used to override the + default endpoint provided by the client. GOOGLE_API_USE_MTLS_ENDPOINT + environment variable can also be used to override the endpoint: + "always" (always use the default mTLS endpoint), "never" (always + use the default regular endpoint) and "auto" (auto switch to the + default mTLS endpoint if client certificate is present, this is + the default value). However, the ``api_endpoint`` property takes + precedence if provided. + (2) If GOOGLE_API_USE_CLIENT_CERTIFICATE environment variable + is "true", then the ``client_cert_source`` property can be used + to provide client certificate for mutual TLS transport. If + not provided, the default SSL client certificate will be used if + present. If GOOGLE_API_USE_CLIENT_CERTIFICATE is "false" or not + set, no client certificate will be 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. + + Raises: + google.auth.exceptions.MutualTLSChannelError: If mutual TLS transport + creation failed for any reason. + """ + if isinstance(client_options, dict): + client_options = client_options_lib.from_dict(client_options) + if client_options is None: + client_options = client_options_lib.ClientOptions() + + # Create SSL credentials for mutual TLS if needed. + use_client_cert = bool( + util.strtobool(os.getenv("GOOGLE_API_USE_CLIENT_CERTIFICATE", "false")) + ) + + client_cert_source_func = None + is_mtls = False + if use_client_cert: + if client_options.client_cert_source: + is_mtls = True + client_cert_source_func = client_options.client_cert_source + else: + is_mtls = mtls.has_default_client_cert_source() + if is_mtls: + client_cert_source_func = mtls.default_client_cert_source() + else: + client_cert_source_func = None + + # Figure out which api endpoint to use. + if client_options.api_endpoint is not None: + api_endpoint = client_options.api_endpoint + else: + use_mtls_env = os.getenv("GOOGLE_API_USE_MTLS_ENDPOINT", "auto") + if use_mtls_env == "never": + api_endpoint = self.DEFAULT_ENDPOINT + elif use_mtls_env == "always": + api_endpoint = self.DEFAULT_MTLS_ENDPOINT + elif use_mtls_env == "auto": + if is_mtls: + api_endpoint = self.DEFAULT_MTLS_ENDPOINT + else: + api_endpoint = self.DEFAULT_ENDPOINT + else: + raise MutualTLSChannelError( + "Unsupported GOOGLE_API_USE_MTLS_ENDPOINT value. Accepted " + "values: never, auto, always" + ) + + # Save or instantiate the transport. + # Ordinarily, we provide the transport, but allowing a custom transport + # instance provides an extensibility point for unusual situations. + if isinstance(transport, OperationsTransport): + # transport is a OperationsTransport instance. + if credentials or client_options.credentials_file: + raise ValueError( + "When providing a transport instance, " + "provide its credentials directly." + ) + if client_options.scopes: + raise ValueError( + "When providing a transport instance, provide its scopes " + "directly." + ) + self._transport = transport + else: + Transport = type(self).get_transport_class(transport) + self._transport = Transport( + credentials=credentials, + credentials_file=client_options.credentials_file, + host=api_endpoint, + scopes=client_options.scopes, + client_cert_source_for_mtls=client_cert_source_func, + quota_project_id=client_options.quota_project_id, + client_info=client_info, + always_use_jwt_access=True, + ) + + def list_operations( + self, + name: str, + filter_: Optional[str] = None, + *, + page_size: Optional[int] = None, + page_token: Optional[str] = None, + retry: OptionalRetry = gapic_v1.method.DEFAULT, + timeout: Optional[float] = None, + metadata: Sequence[Tuple[str, str]] = (), + ) -> pagers.ListOperationsPager: + r"""Lists operations that match the specified filter in the request. + If the server doesn't support this method, it returns + ``UNIMPLEMENTED``. + + NOTE: the ``name`` binding allows API services to override the + binding to use different resource name schemes, such as + ``users/*/operations``. To override the binding, API services + can add a binding such as ``"/v1/{name=users/*}/operations"`` to + their service configuration. For backwards compatibility, the + default name includes the operations collection id, however + overriding users must ensure the name binding is the parent + resource, without the operations collection id. + + Args: + name (str): + The name of the operation's parent + resource. + filter_ (str): + The standard list filter. + This corresponds to the ``filter`` field + on the ``request`` instance; if ``request`` is provided, this + should not be set. + retry (google.api_core.retry.Retry): Designation of what errors, if any, + should be retried. + timeout (float): The timeout for this request. + metadata (Sequence[Tuple[str, str]]): Strings which should be + sent along with the request as metadata. + + Returns: + google.api_core.operations_v1.pagers.ListOperationsPager: + The response message for + [Operations.ListOperations][google.api_core.operations_v1.Operations.ListOperations]. + + Iterating over this object will yield results and + resolve additional pages automatically. + + """ + # Create a protobuf request object. + request = operations_pb2.ListOperationsRequest(name=name, filter=filter_) + if page_size is not None: + request.page_size = page_size + if page_token is not None: + request.page_token = page_token + + # Wrap the RPC method; this adds retry and timeout information, + # and friendly error handling. + rpc = self._transport._wrapped_methods[self._transport.list_operations] + + # Certain fields should be provided within the metadata header; + # add these here. + metadata = tuple(metadata or ()) + ( + gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)), + ) + + # Send the request. + response = rpc(request, retry=retry, timeout=timeout, metadata=metadata,) + + # This method is paged; wrap the response in a pager, which provides + # an `__iter__` convenience method. + response = pagers.ListOperationsPager( + method=rpc, request=request, response=response, metadata=metadata, + ) + + # Done; return the response. + return response + + def get_operation( + self, + name: str, + *, + retry: OptionalRetry = gapic_v1.method.DEFAULT, + timeout: Optional[float] = None, + metadata: Sequence[Tuple[str, str]] = (), + ) -> operations_pb2.Operation: + r"""Gets the latest state of a long-running operation. + Clients can use this method to poll the operation result + at intervals as recommended by the API service. + + Args: + name (str): + The name of the operation resource. + retry (google.api_core.retry.Retry): Designation of what errors, if any, + should be retried. + timeout (float): The timeout for this request. + metadata (Sequence[Tuple[str, str]]): Strings which should be + sent along with the request as metadata. + + Returns: + google.longrunning.operations_pb2.Operation: + This resource represents a long- + unning operation that is the result of a + network API call. + + """ + + request = operations_pb2.GetOperationRequest(name=name) + + # Wrap the RPC method; this adds retry and timeout information, + # and friendly error handling. + rpc = self._transport._wrapped_methods[self._transport.get_operation] + + # Certain fields should be provided within the metadata header; + # add these here. + metadata = tuple(metadata or ()) + ( + gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)), + ) + + # Send the request. + response = rpc(request, retry=retry, timeout=timeout, metadata=metadata,) + + # Done; return the response. + return response + + def delete_operation( + self, + name: str, + *, + retry: OptionalRetry = gapic_v1.method.DEFAULT, + timeout: Optional[float] = None, + metadata: Sequence[Tuple[str, str]] = (), + ) -> None: + r"""Deletes a long-running operation. This method indicates that the + client is no longer interested in the operation result. It does + not cancel the operation. If the server doesn't support this + method, it returns ``google.rpc.Code.UNIMPLEMENTED``. + + Args: + name (str): + The name of the operation resource to + be deleted. + + This corresponds to the ``name`` field + on the ``request`` instance; if ``request`` is provided, this + should not be set. + retry (google.api_core.retry.Retry): Designation of what errors, if any, + should be retried. + timeout (float): The timeout for this request. + metadata (Sequence[Tuple[str, str]]): Strings which should be + sent along with the request as metadata. + """ + # Create the request object. + request = operations_pb2.DeleteOperationRequest(name=name) + + # Wrap the RPC method; this adds retry and timeout information, + # and friendly error handling. + rpc = self._transport._wrapped_methods[self._transport.delete_operation] + + # Certain fields should be provided within the metadata header; + # add these here. + metadata = tuple(metadata or ()) + ( + gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)), + ) + + # Send the request. + rpc( + request, retry=retry, timeout=timeout, metadata=metadata, + ) + + def cancel_operation( + self, + name: Optional[str] = None, + *, + retry: OptionalRetry = gapic_v1.method.DEFAULT, + timeout: Optional[float] = None, + metadata: Sequence[Tuple[str, str]] = (), + ) -> None: + r"""Starts asynchronous cancellation on a long-running operation. + The server makes a best effort to cancel the operation, but + success is not guaranteed. If the server doesn't support this + method, it returns ``google.rpc.Code.UNIMPLEMENTED``. Clients + can use + [Operations.GetOperation][google.api_core.operations_v1.Operations.GetOperation] + or other methods to check whether the cancellation succeeded or + whether the operation completed despite cancellation. On + successful cancellation, the operation is not deleted; instead, + it becomes an operation with an + [Operation.error][google.api_core.operations_v1.Operation.error] value with + a [google.rpc.Status.code][google.rpc.Status.code] of 1, + corresponding to ``Code.CANCELLED``. + + Args: + name (str): + The name of the operation resource to + be cancelled. + + This corresponds to the ``name`` field + on the ``request`` instance; if ``request`` is provided, this + should not be set. + retry (google.api_core.retry.Retry): Designation of what errors, if any, + should be retried. + timeout (float): The timeout for this request. + metadata (Sequence[Tuple[str, str]]): Strings which should be + sent along with the request as metadata. + """ + # Create the request object. + request = operations_pb2.CancelOperationRequest(name=name) + + # Wrap the RPC method; this adds retry and timeout information, + # and friendly error handling. + rpc = self._transport._wrapped_methods[self._transport.cancel_operation] + + # Certain fields should be provided within the metadata header; + # add these here. + metadata = tuple(metadata or ()) + ( + gapic_v1.routing_header.to_grpc_metadata((("name", request.name),)), + ) + + # Send the request. + rpc( + request, retry=retry, timeout=timeout, metadata=metadata, + ) |