/
database_admin_client.py
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/
database_admin_client.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
#
# https://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.
"""Accesses the google.spanner.admin.database.v1 DatabaseAdmin API."""
import functools
import pkg_resources
import warnings
from google.oauth2 import service_account
import google.api_core.client_options
import google.api_core.gapic_v1.client_info
import google.api_core.gapic_v1.config
import google.api_core.gapic_v1.method
import google.api_core.gapic_v1.routing_header
import google.api_core.grpc_helpers
import google.api_core.operation
import google.api_core.operations_v1
import google.api_core.page_iterator
import google.api_core.path_template
import google.api_core.protobuf_helpers
import grpc
from google.cloud.spanner_admin_database_v1.gapic import database_admin_client_config
from google.cloud.spanner_admin_database_v1.gapic import enums
from google.cloud.spanner_admin_database_v1.gapic.transports import (
database_admin_grpc_transport,
)
from google.cloud.spanner_admin_database_v1.proto import backup_pb2
from google.cloud.spanner_admin_database_v1.proto import spanner_database_admin_pb2
from google.cloud.spanner_admin_database_v1.proto import spanner_database_admin_pb2_grpc
from google.iam.v1 import iam_policy_pb2
from google.iam.v1 import options_pb2
from google.iam.v1 import policy_pb2
from google.longrunning import operations_pb2
from google.protobuf import empty_pb2
from google.protobuf import field_mask_pb2
_GAPIC_LIBRARY_VERSION = pkg_resources.get_distribution("google-cloud-spanner").version
class DatabaseAdminClient(object):
"""
Cloud Spanner Database Admin API
The Cloud Spanner Database Admin API can be used to create, drop, and
list databases. It also enables updating the schema of pre-existing
databases. It can be also used to create, delete and list backups for a
database and to restore from an existing backup.
"""
SERVICE_ADDRESS = "spanner.googleapis.com:443"
"""The default address of the service."""
# The name of the interface for this client. This is the key used to
# find the method configuration in the client_config dictionary.
_INTERFACE_NAME = "google.spanner.admin.database.v1.DatabaseAdmin"
@classmethod
def from_service_account_file(cls, filename, *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:
DatabaseAdminClient: 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
@classmethod
def backup_path(cls, project, instance, backup):
"""Return a fully-qualified backup string."""
return google.api_core.path_template.expand(
"projects/{project}/instances/{instance}/backups/{backup}",
project=project,
instance=instance,
backup=backup,
)
@classmethod
def database_path(cls, project, instance, database):
"""Return a fully-qualified database string."""
return google.api_core.path_template.expand(
"projects/{project}/instances/{instance}/databases/{database}",
project=project,
instance=instance,
database=database,
)
@classmethod
def instance_path(cls, project, instance):
"""Return a fully-qualified instance string."""
return google.api_core.path_template.expand(
"projects/{project}/instances/{instance}",
project=project,
instance=instance,
)
def __init__(
self,
transport=None,
channel=None,
credentials=None,
client_config=None,
client_info=None,
client_options=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.
client_options (Union[dict, google.api_core.client_options.ClientOptions]):
Client options used to set user options on the client. API Endpoint
should be set through client_options.
"""
# 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,
)
api_endpoint = self.SERVICE_ADDRESS
if client_options:
if type(client_options) == dict:
client_options = google.api_core.client_options.from_dict(
client_options
)
if client_options.api_endpoint:
api_endpoint = client_options.api_endpoint
# 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,
address=api_endpoint,
)
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=api_endpoint, 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 = {}
# Service calls
def create_database(
self,
parent,
create_statement,
extra_statements=None,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Creates a new Cloud Spanner database and starts to prepare it for
serving. The returned ``long-running operation`` will have a name of the
format ``<database_name>/operations/<operation_id>`` and can be used to
track preparation of the database. The ``metadata`` field type is
``CreateDatabaseMetadata``. The ``response`` field type is ``Database``,
if successful.
Example:
>>> from google.cloud import spanner_admin_database_v1
>>>
>>> client = spanner_admin_database_v1.DatabaseAdminClient()
>>>
>>> parent = client.instance_path('[PROJECT]', '[INSTANCE]')
>>>
>>> # TODO: Initialize `create_statement`:
>>> create_statement = ''
>>>
>>> response = client.create_database(parent, create_statement)
>>>
>>> def callback(operation_future):
... # Handle result.
... result = operation_future.result()
>>>
>>> response.add_done_callback(callback)
>>>
>>> # Handle metadata.
>>> metadata = response.metadata()
Args:
parent (str): Required. The name of the instance that will serve the new database.
Values are of the form ``projects/<project>/instances/<instance>``.
create_statement (str): Required. A ``CREATE DATABASE`` statement, which specifies the ID of
the new database. The database ID must conform to the regular expression
``[a-z][a-z0-9_\-]*[a-z0-9]`` and be between 2 and 30 characters in
length. If the database ID is a reserved word or if it contains a
hyphen, the database ID must be enclosed in backticks (:literal:`\``).
extra_statements (list[str]): Optional. A list of DDL statements to run inside the newly created
database. Statements can create tables, indexes, etc. These
statements execute atomically with the creation of the database:
if there is an error in any statement, the database is not created.
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.api_core.operation.Operation` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "create_database" not in self._inner_api_calls:
self._inner_api_calls[
"create_database"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.create_database,
default_retry=self._method_configs["CreateDatabase"].retry,
default_timeout=self._method_configs["CreateDatabase"].timeout,
client_info=self._client_info,
)
request = spanner_database_admin_pb2.CreateDatabaseRequest(
parent=parent,
create_statement=create_statement,
extra_statements=extra_statements,
)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("parent", parent)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
operation = self._inner_api_calls["create_database"](
request, retry=retry, timeout=timeout, metadata=metadata
)
return google.api_core.operation.from_gapic(
operation,
self.transport._operations_client,
spanner_database_admin_pb2.Database,
metadata_type=spanner_database_admin_pb2.CreateDatabaseMetadata,
)
def get_database(
self,
name,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Gets the state of a Cloud Spanner database.
Example:
>>> from google.cloud import spanner_admin_database_v1
>>>
>>> client = spanner_admin_database_v1.DatabaseAdminClient()
>>>
>>> name = client.database_path('[PROJECT]', '[INSTANCE]', '[DATABASE]')
>>>
>>> response = client.get_database(name)
Args:
name (str): Required. The name of the requested database. Values are of the form
``projects/<project>/instances/<instance>/databases/<database>``.
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.cloud.spanner_admin_database_v1.types.Database` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "get_database" not in self._inner_api_calls:
self._inner_api_calls[
"get_database"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.get_database,
default_retry=self._method_configs["GetDatabase"].retry,
default_timeout=self._method_configs["GetDatabase"].timeout,
client_info=self._client_info,
)
request = spanner_database_admin_pb2.GetDatabaseRequest(name=name)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("name", name)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
return self._inner_api_calls["get_database"](
request, retry=retry, timeout=timeout, metadata=metadata
)
def update_database_ddl(
self,
database,
statements,
operation_id=None,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Updates the schema of a Cloud Spanner database by
creating/altering/dropping tables, columns, indexes, etc. The returned
``long-running operation`` will have a name of the format
``<database_name>/operations/<operation_id>`` and can be used to track
execution of the schema change(s). The ``metadata`` field type is
``UpdateDatabaseDdlMetadata``. The operation has no response.
Example:
>>> from google.cloud import spanner_admin_database_v1
>>>
>>> client = spanner_admin_database_v1.DatabaseAdminClient()
>>>
>>> database = client.database_path('[PROJECT]', '[INSTANCE]', '[DATABASE]')
>>>
>>> # TODO: Initialize `statements`:
>>> statements = []
>>>
>>> response = client.update_database_ddl(database, statements)
>>>
>>> def callback(operation_future):
... # Handle result.
... result = operation_future.result()
>>>
>>> response.add_done_callback(callback)
>>>
>>> # Handle metadata.
>>> metadata = response.metadata()
Args:
database (str): Required. The database to update.
statements (list[str]): Required. DDL statements to be applied to the database.
operation_id (str): If empty, the new update request is assigned an
automatically-generated operation ID. Otherwise, ``operation_id`` is
used to construct the name of the resulting ``Operation``.
Specifying an explicit operation ID simplifies determining whether the
statements were executed in the event that the ``UpdateDatabaseDdl``
call is replayed, or the return value is otherwise lost: the
``database`` and ``operation_id`` fields can be combined to form the
``name`` of the resulting ``longrunning.Operation``:
``<database>/operations/<operation_id>``.
``operation_id`` should be unique within the database, and must be a
valid identifier: ``[a-z][a-z0-9_]*``. Note that automatically-generated
operation IDs always begin with an underscore. If the named operation
already exists, ``UpdateDatabaseDdl`` returns ``ALREADY_EXISTS``.
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.api_core.operation.Operation` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "update_database_ddl" not in self._inner_api_calls:
self._inner_api_calls[
"update_database_ddl"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.update_database_ddl,
default_retry=self._method_configs["UpdateDatabaseDdl"].retry,
default_timeout=self._method_configs["UpdateDatabaseDdl"].timeout,
client_info=self._client_info,
)
request = spanner_database_admin_pb2.UpdateDatabaseDdlRequest(
database=database, statements=statements, operation_id=operation_id
)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("database", database)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
operation = self._inner_api_calls["update_database_ddl"](
request, retry=retry, timeout=timeout, metadata=metadata
)
return google.api_core.operation.from_gapic(
operation,
self.transport._operations_client,
empty_pb2.Empty,
metadata_type=spanner_database_admin_pb2.UpdateDatabaseDdlMetadata,
)
def drop_database(
self,
database,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Drops (aka deletes) a Cloud Spanner database. Completed backups for
the database will be retained according to their ``expire_time``.
Example:
>>> from google.cloud import spanner_admin_database_v1
>>>
>>> client = spanner_admin_database_v1.DatabaseAdminClient()
>>>
>>> database = client.database_path('[PROJECT]', '[INSTANCE]', '[DATABASE]')
>>>
>>> client.drop_database(database)
Args:
database (str): Required. The database to be dropped.
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "drop_database" not in self._inner_api_calls:
self._inner_api_calls[
"drop_database"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.drop_database,
default_retry=self._method_configs["DropDatabase"].retry,
default_timeout=self._method_configs["DropDatabase"].timeout,
client_info=self._client_info,
)
request = spanner_database_admin_pb2.DropDatabaseRequest(database=database)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("database", database)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
self._inner_api_calls["drop_database"](
request, retry=retry, timeout=timeout, metadata=metadata
)
def get_database_ddl(
self,
database,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Returns the schema of a Cloud Spanner database as a list of
formatted DDL statements. This method does not show pending schema
updates, those may be queried using the ``Operations`` API.
Example:
>>> from google.cloud import spanner_admin_database_v1
>>>
>>> client = spanner_admin_database_v1.DatabaseAdminClient()
>>>
>>> database = client.database_path('[PROJECT]', '[INSTANCE]', '[DATABASE]')
>>>
>>> response = client.get_database_ddl(database)
Args:
database (str): Required. The database whose schema we wish to get.
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.cloud.spanner_admin_database_v1.types.GetDatabaseDdlResponse` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "get_database_ddl" not in self._inner_api_calls:
self._inner_api_calls[
"get_database_ddl"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.get_database_ddl,
default_retry=self._method_configs["GetDatabaseDdl"].retry,
default_timeout=self._method_configs["GetDatabaseDdl"].timeout,
client_info=self._client_info,
)
request = spanner_database_admin_pb2.GetDatabaseDdlRequest(database=database)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("database", database)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
return self._inner_api_calls["get_database_ddl"](
request, retry=retry, timeout=timeout, metadata=metadata
)
def set_iam_policy(
self,
resource,
policy,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Sets the access control policy on a database or backup resource.
Replaces any existing policy.
Authorization requires ``spanner.databases.setIamPolicy`` permission on
``resource``. For backups, authorization requires
``spanner.backups.setIamPolicy`` permission on ``resource``.
Example:
>>> from google.cloud import spanner_admin_database_v1
>>>
>>> client = spanner_admin_database_v1.DatabaseAdminClient()
>>>
>>> # TODO: Initialize `resource`:
>>> resource = ''
>>>
>>> # TODO: Initialize `policy`:
>>> policy = {}
>>>
>>> response = client.set_iam_policy(resource, policy)
Args:
resource (str): REQUIRED: The resource for which the policy is being specified.
See the operation documentation for the appropriate value for this field.
policy (Union[dict, ~google.cloud.spanner_admin_database_v1.types.Policy]): REQUIRED: The complete policy to be applied to the ``resource``. The
size of the policy is limited to a few 10s of KB. An empty policy is a
valid policy but certain Cloud Platform services (such as Projects)
might reject them.
If a dict is provided, it must be of the same form as the protobuf
message :class:`~google.cloud.spanner_admin_database_v1.types.Policy`
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.cloud.spanner_admin_database_v1.types.Policy` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "set_iam_policy" not in self._inner_api_calls:
self._inner_api_calls[
"set_iam_policy"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.set_iam_policy,
default_retry=self._method_configs["SetIamPolicy"].retry,
default_timeout=self._method_configs["SetIamPolicy"].timeout,
client_info=self._client_info,
)
request = iam_policy_pb2.SetIamPolicyRequest(resource=resource, policy=policy)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("resource", resource)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
return self._inner_api_calls["set_iam_policy"](
request, retry=retry, timeout=timeout, metadata=metadata
)
def get_iam_policy(
self,
resource,
options_=None,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Gets the access control policy for a database or backup resource.
Returns an empty policy if a database or backup exists but does not have
a policy set.
Authorization requires ``spanner.databases.getIamPolicy`` permission on
``resource``. For backups, authorization requires
``spanner.backups.getIamPolicy`` permission on ``resource``.
Example:
>>> from google.cloud import spanner_admin_database_v1
>>>
>>> client = spanner_admin_database_v1.DatabaseAdminClient()
>>>
>>> # TODO: Initialize `resource`:
>>> resource = ''
>>>
>>> response = client.get_iam_policy(resource)
Args:
resource (str): REQUIRED: The resource for which the policy is being requested.
See the operation documentation for the appropriate value for this field.
options_ (Union[dict, ~google.cloud.spanner_admin_database_v1.types.GetPolicyOptions]): OPTIONAL: A ``GetPolicyOptions`` object for specifying options to
``GetIamPolicy``. This field is only used by Cloud IAM.
If a dict is provided, it must be of the same form as the protobuf
message :class:`~google.cloud.spanner_admin_database_v1.types.GetPolicyOptions`
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.cloud.spanner_admin_database_v1.types.Policy` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "get_iam_policy" not in self._inner_api_calls:
self._inner_api_calls[
"get_iam_policy"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.get_iam_policy,
default_retry=self._method_configs["GetIamPolicy"].retry,
default_timeout=self._method_configs["GetIamPolicy"].timeout,
client_info=self._client_info,
)
request = iam_policy_pb2.GetIamPolicyRequest(
resource=resource, options=options_
)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("resource", resource)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
return self._inner_api_calls["get_iam_policy"](
request, retry=retry, timeout=timeout, metadata=metadata
)
def test_iam_permissions(
self,
resource,
permissions,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Returns permissions that the caller has on the specified database or
backup resource.
Attempting this RPC on a non-existent Cloud Spanner database will result
in a NOT_FOUND error if the user has ``spanner.databases.list``
permission on the containing Cloud Spanner instance. Otherwise returns
an empty set of permissions. Calling this method on a backup that does
not exist will result in a NOT_FOUND error if the user has
``spanner.backups.list`` permission on the containing instance.
Example:
>>> from google.cloud import spanner_admin_database_v1
>>>
>>> client = spanner_admin_database_v1.DatabaseAdminClient()
>>>
>>> # TODO: Initialize `resource`:
>>> resource = ''
>>>
>>> # TODO: Initialize `permissions`:
>>> permissions = []
>>>
>>> response = client.test_iam_permissions(resource, permissions)
Args:
resource (str): REQUIRED: The resource for which the policy detail is being requested.
See the operation documentation for the appropriate value for this field.
permissions (list[str]): The set of permissions to check for the ``resource``. Permissions
with wildcards (such as '*' or 'storage.*') are not allowed. For more
information see `IAM
Overview <https://cloud.google.com/iam/docs/overview#permissions>`__.
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.cloud.spanner_admin_database_v1.types.TestIamPermissionsResponse` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.
if "test_iam_permissions" not in self._inner_api_calls:
self._inner_api_calls[
"test_iam_permissions"
] = google.api_core.gapic_v1.method.wrap_method(
self.transport.test_iam_permissions,
default_retry=self._method_configs["TestIamPermissions"].retry,
default_timeout=self._method_configs["TestIamPermissions"].timeout,
client_info=self._client_info,
)
request = iam_policy_pb2.TestIamPermissionsRequest(
resource=resource, permissions=permissions
)
if metadata is None:
metadata = []
metadata = list(metadata)
try:
routing_header = [("resource", resource)]
except AttributeError:
pass
else:
routing_metadata = google.api_core.gapic_v1.routing_header.to_grpc_metadata(
routing_header
)
metadata.append(routing_metadata)
return self._inner_api_calls["test_iam_permissions"](
request, retry=retry, timeout=timeout, metadata=metadata
)
def create_backup(
self,
parent,
backup_id,
backup,
retry=google.api_core.gapic_v1.method.DEFAULT,
timeout=google.api_core.gapic_v1.method.DEFAULT,
metadata=None,
):
"""
Starts creating a new Cloud Spanner Backup. The returned backup
``long-running operation`` will have a name of the format
``projects/<project>/instances/<instance>/backups/<backup>/operations/<operation_id>``
and can be used to track creation of the backup. The ``metadata`` field
type is ``CreateBackupMetadata``. The ``response`` field type is
``Backup``, if successful. Cancelling the returned operation will stop
the creation and delete the backup. There can be only one pending backup
creation per database. Backup creation of different databases can run
concurrently.
Example:
>>> from google.cloud import spanner_admin_database_v1
>>>
>>> client = spanner_admin_database_v1.DatabaseAdminClient()
>>>
>>> parent = client.instance_path('[PROJECT]', '[INSTANCE]')
>>>
>>> # TODO: Initialize `backup_id`:
>>> backup_id = ''
>>>
>>> # TODO: Initialize `backup`:
>>> backup = {}
>>>
>>> response = client.create_backup(parent, backup_id, backup)
>>>
>>> def callback(operation_future):
... # Handle result.
... result = operation_future.result()
>>>
>>> response.add_done_callback(callback)
>>>
>>> # Handle metadata.
>>> metadata = response.metadata()
Args:
parent (str): Required. The name of the instance in which the backup will be
created. This must be the same instance that contains the database the
backup will be created from. The backup will be stored in the
location(s) specified in the instance configuration of this instance.
Values are of the form ``projects/<project>/instances/<instance>``.
backup_id (str): Required. The id of the backup to be created. The ``backup_id``
appended to ``parent`` forms the full backup name of the form
``projects/<project>/instances/<instance>/backups/<backup_id>``.
backup (Union[dict, ~google.cloud.spanner_admin_database_v1.types.Backup]): Required. The backup to create.
If a dict is provided, it must be of the same form as the protobuf
message :class:`~google.cloud.spanner_admin_database_v1.types.Backup`
retry (Optional[google.api_core.retry.Retry]): A retry object used
to retry requests. If ``None`` is specified, requests will
be retried using a default configuration.
timeout (Optional[float]): The amount of time, in seconds, to wait
for the request to complete. Note that if ``retry`` is
specified, the timeout applies to each individual attempt.
metadata (Optional[Sequence[Tuple[str, str]]]): Additional metadata
that is provided to the method.
Returns:
A :class:`~google.api_core.operation.Operation` instance.
Raises:
google.api_core.exceptions.GoogleAPICallError: If the request
failed for any reason.
google.api_core.exceptions.RetryError: If the request failed due
to a retryable error and retry attempts failed.
ValueError: If the parameters are invalid.
"""
# Wrap the transport method to add retry and timeout logic.