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grpc_asyncio.py
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grpc_asyncio.py
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# -*- 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.
#
import warnings
from typing import Awaitable, Callable, Dict, Optional, Sequence, Tuple, Union
from google.api_core import gapic_v1 # type: ignore
from google.api_core import grpc_helpers_async # type: ignore
from google.auth import credentials as ga_credentials # type: ignore
from google.auth.transport.grpc import SslCredentials # type: ignore
import packaging.version
import grpc # type: ignore
from grpc.experimental import aio # type: ignore
from google.cloud.monitoring_dashboard_v1.types import dashboard
from google.cloud.monitoring_dashboard_v1.types import dashboards_service
from google.protobuf import empty_pb2 # type: ignore
from .base import DashboardsServiceTransport, DEFAULT_CLIENT_INFO
from .grpc import DashboardsServiceGrpcTransport
class DashboardsServiceGrpcAsyncIOTransport(DashboardsServiceTransport):
"""gRPC AsyncIO backend transport for DashboardsService.
Manages Stackdriver dashboards. A dashboard is an arrangement
of data display widgets in a specific layout.
This class defines the same methods as the primary client, so the
primary client can load the underlying transport implementation
and call it.
It sends protocol buffers over the wire using gRPC (which is built on
top of HTTP/2); the ``grpcio`` package must be installed.
"""
_grpc_channel: aio.Channel
_stubs: Dict[str, Callable] = {}
@classmethod
def create_channel(
cls,
host: str = "monitoring.googleapis.com",
credentials: ga_credentials.Credentials = None,
credentials_file: Optional[str] = None,
scopes: Optional[Sequence[str]] = None,
quota_project_id: Optional[str] = None,
**kwargs,
) -> aio.Channel:
"""Create and return a gRPC AsyncIO channel object.
Args:
host (Optional[str]): The host for the channel to use.
credentials (Optional[~.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.
credentials_file (Optional[str]): A file with credentials that can
be loaded with :func:`google.auth.load_credentials_from_file`.
This argument is ignored if ``channel`` is provided.
scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
service. These are only used when credentials are not specified and
are passed to :func:`google.auth.default`.
quota_project_id (Optional[str]): An optional project to use for billing
and quota.
kwargs (Optional[dict]): Keyword arguments, which are passed to the
channel creation.
Returns:
aio.Channel: A gRPC AsyncIO channel object.
"""
return grpc_helpers_async.create_channel(
host,
credentials=credentials,
credentials_file=credentials_file,
quota_project_id=quota_project_id,
default_scopes=cls.AUTH_SCOPES,
scopes=scopes,
default_host=cls.DEFAULT_HOST,
**kwargs,
)
def __init__(
self,
*,
host: str = "monitoring.googleapis.com",
credentials: ga_credentials.Credentials = None,
credentials_file: Optional[str] = None,
scopes: Optional[Sequence[str]] = None,
channel: aio.Channel = None,
api_mtls_endpoint: str = None,
client_cert_source: Callable[[], Tuple[bytes, bytes]] = None,
ssl_channel_credentials: grpc.ChannelCredentials = None,
client_cert_source_for_mtls: Callable[[], Tuple[bytes, bytes]] = None,
quota_project_id=None,
client_info: gapic_v1.client_info.ClientInfo = DEFAULT_CLIENT_INFO,
always_use_jwt_access: Optional[bool] = False,
) -> None:
"""Instantiate the transport.
Args:
host (Optional[str]):
The hostname to connect to.
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.
This argument is ignored if ``channel`` is provided.
credentials_file (Optional[str]): A file with credentials that can
be loaded with :func:`google.auth.load_credentials_from_file`.
This argument is ignored if ``channel`` is provided.
scopes (Optional[Sequence[str]]): A optional list of scopes needed for this
service. These are only used when credentials are not specified and
are passed to :func:`google.auth.default`.
channel (Optional[aio.Channel]): A ``Channel`` instance through
which to make calls.
api_mtls_endpoint (Optional[str]): Deprecated. The mutual TLS endpoint.
If provided, it overrides the ``host`` argument and tries to create
a mutual TLS channel with client SSL credentials from
``client_cert_source`` or applicatin default SSL credentials.
client_cert_source (Optional[Callable[[], Tuple[bytes, bytes]]]):
Deprecated. A callback to provide client SSL certificate bytes and
private key bytes, both in PEM format. It is ignored if
``api_mtls_endpoint`` is None.
ssl_channel_credentials (grpc.ChannelCredentials): SSL credentials
for grpc channel. It is ignored if ``channel`` is provided.
client_cert_source_for_mtls (Optional[Callable[[], Tuple[bytes, bytes]]]):
A callback to provide client certificate bytes and private key bytes,
both in PEM format. It is used to configure mutual TLS channel. It is
ignored if ``channel`` or ``ssl_channel_credentials`` is provided.
quota_project_id (Optional[str]): An optional project to use for billing
and quota.
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.
always_use_jwt_access (Optional[bool]): Whether self signed JWT should
be used for service account credentials.
Raises:
google.auth.exceptions.MutualTlsChannelError: If mutual TLS transport
creation failed for any reason.
google.api_core.exceptions.DuplicateCredentialArgs: If both ``credentials``
and ``credentials_file`` are passed.
"""
self._grpc_channel = None
self._ssl_channel_credentials = ssl_channel_credentials
self._stubs: Dict[str, Callable] = {}
if api_mtls_endpoint:
warnings.warn("api_mtls_endpoint is deprecated", DeprecationWarning)
if client_cert_source:
warnings.warn("client_cert_source is deprecated", DeprecationWarning)
if channel:
# Ignore credentials if a channel was passed.
credentials = False
# If a channel was explicitly provided, set it.
self._grpc_channel = channel
self._ssl_channel_credentials = None
else:
if api_mtls_endpoint:
host = api_mtls_endpoint
# Create SSL credentials with client_cert_source or application
# default SSL credentials.
if client_cert_source:
cert, key = client_cert_source()
self._ssl_channel_credentials = grpc.ssl_channel_credentials(
certificate_chain=cert, private_key=key
)
else:
self._ssl_channel_credentials = SslCredentials().ssl_credentials
else:
if client_cert_source_for_mtls and not ssl_channel_credentials:
cert, key = client_cert_source_for_mtls()
self._ssl_channel_credentials = grpc.ssl_channel_credentials(
certificate_chain=cert, private_key=key
)
# The base transport sets the host, credentials and scopes
super().__init__(
host=host,
credentials=credentials,
credentials_file=credentials_file,
scopes=scopes,
quota_project_id=quota_project_id,
client_info=client_info,
always_use_jwt_access=always_use_jwt_access,
)
if not self._grpc_channel:
self._grpc_channel = type(self).create_channel(
self._host,
credentials=self._credentials,
credentials_file=credentials_file,
scopes=self._scopes,
ssl_credentials=self._ssl_channel_credentials,
quota_project_id=quota_project_id,
options=[
("grpc.max_send_message_length", -1),
("grpc.max_receive_message_length", -1),
],
)
# Wrap messages. This must be done after self._grpc_channel exists
self._prep_wrapped_messages(client_info)
@property
def grpc_channel(self) -> aio.Channel:
"""Create the channel designed to connect to this service.
This property caches on the instance; repeated calls return
the same channel.
"""
# Return the channel from cache.
return self._grpc_channel
@property
def create_dashboard(
self,
) -> Callable[
[dashboards_service.CreateDashboardRequest], Awaitable[dashboard.Dashboard]
]:
r"""Return a callable for the create dashboard method over gRPC.
Creates a new custom dashboard. For examples on how you can use
this API to create dashboards, see `Managing dashboards by
API <https://cloud.google.com/monitoring/dashboards/api-dashboard>`__.
This method requires the ``monitoring.dashboards.create``
permission on the specified project. For more information about
permissions, see `Cloud Identity and Access
Management <https://cloud.google.com/iam>`__.
Returns:
Callable[[~.CreateDashboardRequest],
Awaitable[~.Dashboard]]:
A function that, when called, will call the underlying RPC
on the server.
"""
# Generate a "stub function" on-the-fly which will actually make
# the request.
# gRPC handles serialization and deserialization, so we just need
# to pass in the functions for each.
if "create_dashboard" not in self._stubs:
self._stubs["create_dashboard"] = self.grpc_channel.unary_unary(
"/google.monitoring.dashboard.v1.DashboardsService/CreateDashboard",
request_serializer=dashboards_service.CreateDashboardRequest.serialize,
response_deserializer=dashboard.Dashboard.deserialize,
)
return self._stubs["create_dashboard"]
@property
def list_dashboards(
self,
) -> Callable[
[dashboards_service.ListDashboardsRequest],
Awaitable[dashboards_service.ListDashboardsResponse],
]:
r"""Return a callable for the list dashboards method over gRPC.
Lists the existing dashboards.
This method requires the ``monitoring.dashboards.list``
permission on the specified project. For more information, see
`Cloud Identity and Access
Management <https://cloud.google.com/iam>`__.
Returns:
Callable[[~.ListDashboardsRequest],
Awaitable[~.ListDashboardsResponse]]:
A function that, when called, will call the underlying RPC
on the server.
"""
# Generate a "stub function" on-the-fly which will actually make
# the request.
# gRPC handles serialization and deserialization, so we just need
# to pass in the functions for each.
if "list_dashboards" not in self._stubs:
self._stubs["list_dashboards"] = self.grpc_channel.unary_unary(
"/google.monitoring.dashboard.v1.DashboardsService/ListDashboards",
request_serializer=dashboards_service.ListDashboardsRequest.serialize,
response_deserializer=dashboards_service.ListDashboardsResponse.deserialize,
)
return self._stubs["list_dashboards"]
@property
def get_dashboard(
self,
) -> Callable[
[dashboards_service.GetDashboardRequest], Awaitable[dashboard.Dashboard]
]:
r"""Return a callable for the get dashboard method over gRPC.
Fetches a specific dashboard.
This method requires the ``monitoring.dashboards.get``
permission on the specified dashboard. For more information, see
`Cloud Identity and Access
Management <https://cloud.google.com/iam>`__.
Returns:
Callable[[~.GetDashboardRequest],
Awaitable[~.Dashboard]]:
A function that, when called, will call the underlying RPC
on the server.
"""
# Generate a "stub function" on-the-fly which will actually make
# the request.
# gRPC handles serialization and deserialization, so we just need
# to pass in the functions for each.
if "get_dashboard" not in self._stubs:
self._stubs["get_dashboard"] = self.grpc_channel.unary_unary(
"/google.monitoring.dashboard.v1.DashboardsService/GetDashboard",
request_serializer=dashboards_service.GetDashboardRequest.serialize,
response_deserializer=dashboard.Dashboard.deserialize,
)
return self._stubs["get_dashboard"]
@property
def delete_dashboard(
self,
) -> Callable[
[dashboards_service.DeleteDashboardRequest], Awaitable[empty_pb2.Empty]
]:
r"""Return a callable for the delete dashboard method over gRPC.
Deletes an existing custom dashboard.
This method requires the ``monitoring.dashboards.delete``
permission on the specified dashboard. For more information, see
`Cloud Identity and Access
Management <https://cloud.google.com/iam>`__.
Returns:
Callable[[~.DeleteDashboardRequest],
Awaitable[~.Empty]]:
A function that, when called, will call the underlying RPC
on the server.
"""
# Generate a "stub function" on-the-fly which will actually make
# the request.
# gRPC handles serialization and deserialization, so we just need
# to pass in the functions for each.
if "delete_dashboard" not in self._stubs:
self._stubs["delete_dashboard"] = self.grpc_channel.unary_unary(
"/google.monitoring.dashboard.v1.DashboardsService/DeleteDashboard",
request_serializer=dashboards_service.DeleteDashboardRequest.serialize,
response_deserializer=empty_pb2.Empty.FromString,
)
return self._stubs["delete_dashboard"]
@property
def update_dashboard(
self,
) -> Callable[
[dashboards_service.UpdateDashboardRequest], Awaitable[dashboard.Dashboard]
]:
r"""Return a callable for the update dashboard method over gRPC.
Replaces an existing custom dashboard with a new definition.
This method requires the ``monitoring.dashboards.update``
permission on the specified dashboard. For more information, see
`Cloud Identity and Access
Management <https://cloud.google.com/iam>`__.
Returns:
Callable[[~.UpdateDashboardRequest],
Awaitable[~.Dashboard]]:
A function that, when called, will call the underlying RPC
on the server.
"""
# Generate a "stub function" on-the-fly which will actually make
# the request.
# gRPC handles serialization and deserialization, so we just need
# to pass in the functions for each.
if "update_dashboard" not in self._stubs:
self._stubs["update_dashboard"] = self.grpc_channel.unary_unary(
"/google.monitoring.dashboard.v1.DashboardsService/UpdateDashboard",
request_serializer=dashboards_service.UpdateDashboardRequest.serialize,
response_deserializer=dashboard.Dashboard.deserialize,
)
return self._stubs["update_dashboard"]
__all__ = ("DashboardsServiceGrpcAsyncIOTransport",)