Class: Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient

Inherits:
Object
  • Object
show all
Defined in:
lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb

Overview

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.

Constant Summary collapse

SERVICE_ADDRESS =

The default address of the service.

"spanner.googleapis.com".freeze
DEFAULT_SERVICE_PORT =

The default port of the service.

443
DEFAULT_TIMEOUT = 
30
ALL_SCOPES =

The scopes needed to make gRPC calls to all of the methods defined in this service.

[
  "https://www.googleapis.com/auth/cloud-platform",
  "https://www.googleapis.com/auth/spanner.admin"
].freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(credentials: nil, scopes: ALL_SCOPES, client_config: {}, timeout: DEFAULT_TIMEOUT, lib_name: nil, lib_version: "") ⇒ DatabaseAdminClient

Returns a new instance of DatabaseAdminClient

Parameters:

  • credentials (Google::Auth::Credentials, String, Hash, GRPC::Core::Channel, GRPC::Core::ChannelCredentials, Proc) —

    Provides the means for authenticating requests made by the client. This parameter can be many types. A Google::Auth::Credentials uses a the properties of its represented keyfile for authenticating requests made by this client. A String will be treated as the path to the keyfile to be used for the construction of credentials for this client. A Hash will be treated as the contents of a keyfile to be used for the construction of credentials for this client. A GRPC::Core::Channel will be used to make calls through. A GRPC::Core::ChannelCredentials for the setting up the RPC client. The channel credentials should already be composed with a GRPC::Core::CallCredentials object. A Proc will be used as an updater_proc for the Grpc channel. The proc transforms the metadata for requests, generally, to give OAuth credentials.

  • scopes (Array<String>) —

    The OAuth scopes for this service. This parameter is ignored if an updater_proc is supplied.

  • client_config (Hash) —

    A Hash for call options for each method. See Google::Gax#construct_settings for the structure of this data. Falls back to the default config if not specified or the specified config is missing data points.

  • timeout (Numeric) —

    The default timeout, in seconds, for calls made through this client.



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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 141

def initialize \
    credentials: nil,
    scopes: ALL_SCOPES,
    client_config: {},
    timeout: DEFAULT_TIMEOUT,
    lib_name: nil,
    lib_version: ""
  # These require statements are intentionally placed here to initialize
  # the gRPC module only when it's required.
  # See https://github.com/googleapis/toolkit/issues/446
  require "google/gax/grpc"
  require "google/spanner/admin/database/v1/spanner_database_admin_services_pb"

  credentials ||= Google::Cloud::Spanner::Admin::Database::Credentials.default

  @operations_client = OperationsClient.new(
    credentials: credentials,
    scopes: scopes,
    client_config: client_config,
    timeout: timeout,
    lib_name: lib_name,
    lib_version: lib_version,
  )

  if credentials.is_a?(String) || credentials.is_a?(Hash)
    updater_proc = Google::Cloud::Spanner::Admin::Database::Credentials.new(credentials).updater_proc
  end
  if credentials.is_a?(GRPC::Core::Channel)
    channel = credentials
  end
  if credentials.is_a?(GRPC::Core::ChannelCredentials)
    chan_creds = credentials
  end
  if credentials.is_a?(Proc)
    updater_proc = credentials
  end
  if credentials.is_a?(Google::Auth::Credentials)
    updater_proc = credentials.updater_proc
  end

  package_version = Gem.loaded_specs['google-cloud-spanner'].version.version

  google_api_client = "gl-ruby/#{RUBY_VERSION}"
  google_api_client << " #{lib_name}/#{lib_version}" if lib_name
  google_api_client << " gapic/#{package_version} gax/#{Google::Gax::VERSION}"
  google_api_client << " grpc/#{GRPC::VERSION}"
  google_api_client.freeze

  headers = { :"x-goog-api-client" => google_api_client }
  client_config_file = Pathname.new(__dir__).join(
    "database_admin_client_config.json"
  )
  defaults = client_config_file.open do |f|
    Google::Gax.construct_settings(
      "google.spanner.admin.database.v1.DatabaseAdmin",
      JSON.parse(f.read),
      client_config,
      Google::Gax::Grpc::STATUS_CODE_NAMES,
      timeout,
      page_descriptors: PAGE_DESCRIPTORS,
      errors: Google::Gax::Grpc::API_ERRORS,
      kwargs: headers
    )
  end

  # Allow overriding the service path/port in subclasses.
  service_path = self.class::SERVICE_ADDRESS
  port = self.class::DEFAULT_SERVICE_PORT
  @database_admin_stub = Google::Gax::Grpc.create_stub(
    service_path,
    port,
    chan_creds: chan_creds,
    channel: channel,
    updater_proc: updater_proc,
    scopes: scopes,
    &Google::Spanner::Admin::Database::V1::DatabaseAdmin::Stub.method(:new)
  )

  @list_databases = Google::Gax.create_api_call(
    @database_admin_stub.method(:list_databases),
    defaults["list_databases"]
  )
  @create_database = Google::Gax.create_api_call(
    @database_admin_stub.method(:create_database),
    defaults["create_database"]
  )
  @get_database = Google::Gax.create_api_call(
    @database_admin_stub.method(:get_database),
    defaults["get_database"]
  )
  @update_database_ddl = Google::Gax.create_api_call(
    @database_admin_stub.method(:update_database_ddl),
    defaults["update_database_ddl"]
  )
  @drop_database = Google::Gax.create_api_call(
    @database_admin_stub.method(:drop_database),
    defaults["drop_database"]
  )
  @get_database_ddl = Google::Gax.create_api_call(
    @database_admin_stub.method(:get_database_ddl),
    defaults["get_database_ddl"]
  )
  @set_iam_policy = Google::Gax.create_api_call(
    @database_admin_stub.method(:set_iam_policy),
    defaults["set_iam_policy"]
  )
  @get_iam_policy = Google::Gax.create_api_call(
    @database_admin_stub.method(:get_iam_policy),
    defaults["get_iam_policy"]
  )
  @test_iam_permissions = Google::Gax.create_api_call(
    @database_admin_stub.method(:test_iam_permissions),
    defaults["test_iam_permissions"]
  )
end

Instance Attribute Details

#database_admin_stub ⇒ Google::Spanner::Admin::Database::V1::DatabaseAdmin::Stub (readonly)

Returns:

  • (Google::Spanner::Admin::Database::V1::DatabaseAdmin::Stub) 


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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 49

class DatabaseAdminClient
  attr_reader :database_admin_stub

  # The default address of the service.
  SERVICE_ADDRESS = "spanner.googleapis.com".freeze

  # The default port of the service.
  DEFAULT_SERVICE_PORT = 443

  DEFAULT_TIMEOUT = 30

  PAGE_DESCRIPTORS = {
    "list_databases" => Google::Gax::PageDescriptor.new(
      "page_token",
      "next_page_token",
      "databases")
  }.freeze

  private_constant :PAGE_DESCRIPTORS

  # The scopes needed to make gRPC calls to all of the methods defined in
  # this service.
  ALL_SCOPES = [
    "https://www.googleapis.com/auth/cloud-platform",
    "https://www.googleapis.com/auth/spanner.admin"
  ].freeze

  # @private
  class OperationsClient < Google::Longrunning::OperationsClient
    SERVICE_ADDRESS = SERVICE_ADDRESS
  end

  INSTANCE_PATH_TEMPLATE = Google::Gax::PathTemplate.new(
    "projects/{project}/instances/{instance}"
  )

  private_constant :INSTANCE_PATH_TEMPLATE

  DATABASE_PATH_TEMPLATE = Google::Gax::PathTemplate.new(
    "projects/{project}/instances/{instance}/databases/{database}"
  )

  private_constant :DATABASE_PATH_TEMPLATE

  # Returns a fully-qualified instance resource name string.
  # @param project [String]
  # @param instance [String]
  # @return [String]
  def self.instance_path project, instance
    INSTANCE_PATH_TEMPLATE.render(
      :"project" => project,
      :"instance" => instance
    )
  end

  # Returns a fully-qualified database resource name string.
  # @param project [String]
  # @param instance [String]
  # @param database [String]
  # @return [String]
  def self.database_path project, instance, database
    DATABASE_PATH_TEMPLATE.render(
      :"project" => project,
      :"instance" => instance,
      :"database" => database
    )
  end

  # @param credentials [Google::Auth::Credentials, String, Hash, GRPC::Core::Channel, GRPC::Core::ChannelCredentials, Proc]
  #   Provides the means for authenticating requests made by the client. This parameter can
  #   be many types.
  #   A `Google::Auth::Credentials` uses a the properties of its represented keyfile for
  #   authenticating requests made by this client.
  #   A `String` will be treated as the path to the keyfile to be used for the construction of
  #   credentials for this client.
  #   A `Hash` will be treated as the contents of a keyfile to be used for the construction of
  #   credentials for this client.
  #   A `GRPC::Core::Channel` will be used to make calls through.
  #   A `GRPC::Core::ChannelCredentials` for the setting up the RPC client. The channel credentials
  #   should already be composed with a `GRPC::Core::CallCredentials` object.
  #   A `Proc` will be used as an updater_proc for the Grpc channel. The proc transforms the
  #   metadata for requests, generally, to give OAuth credentials.
  # @param scopes [Array<String>]
  #   The OAuth scopes for this service. This parameter is ignored if
  #   an updater_proc is supplied.
  # @param client_config [Hash]
  #   A Hash for call options for each method. See
  #   Google::Gax#construct_settings for the structure of
  #   this data. Falls back to the default config if not specified
  #   or the specified config is missing data points.
  # @param timeout [Numeric]
  #   The default timeout, in seconds, for calls made through this client.
  def initialize \
      credentials: nil,
      scopes: ALL_SCOPES,
      client_config: {},
      timeout: DEFAULT_TIMEOUT,
      lib_name: nil,
      lib_version: ""
    # These require statements are intentionally placed here to initialize
    # the gRPC module only when it's required.
    # See https://github.com/googleapis/toolkit/issues/446
    require "google/gax/grpc"
    require "google/spanner/admin/database/v1/spanner_database_admin_services_pb"

    credentials ||= Google::Cloud::Spanner::Admin::Database::Credentials.default

    @operations_client = OperationsClient.new(
      credentials: credentials,
      scopes: scopes,
      client_config: client_config,
      timeout: timeout,
      lib_name: lib_name,
      lib_version: lib_version,
    )

    if credentials.is_a?(String) || credentials.is_a?(Hash)
      updater_proc = Google::Cloud::Spanner::Admin::Database::Credentials.new(credentials).updater_proc
    end
    if credentials.is_a?(GRPC::Core::Channel)
      channel = credentials
    end
    if credentials.is_a?(GRPC::Core::ChannelCredentials)
      chan_creds = credentials
    end
    if credentials.is_a?(Proc)
      updater_proc = credentials
    end
    if credentials.is_a?(Google::Auth::Credentials)
      updater_proc = credentials.updater_proc
    end

    package_version = Gem.loaded_specs['google-cloud-spanner'].version.version

    google_api_client = "gl-ruby/#{RUBY_VERSION}"
    google_api_client << " #{lib_name}/#{lib_version}" if lib_name
    google_api_client << " gapic/#{package_version} gax/#{Google::Gax::VERSION}"
    google_api_client << " grpc/#{GRPC::VERSION}"
    google_api_client.freeze

    headers = { :"x-goog-api-client" => google_api_client }
    client_config_file = Pathname.new(__dir__).join(
      "database_admin_client_config.json"
    )
    defaults = client_config_file.open do |f|
      Google::Gax.construct_settings(
        "google.spanner.admin.database.v1.DatabaseAdmin",
        JSON.parse(f.read),
        client_config,
        Google::Gax::Grpc::STATUS_CODE_NAMES,
        timeout,
        page_descriptors: PAGE_DESCRIPTORS,
        errors: Google::Gax::Grpc::API_ERRORS,
        kwargs: headers
      )
    end

    # Allow overriding the service path/port in subclasses.
    service_path = self.class::SERVICE_ADDRESS
    port = self.class::DEFAULT_SERVICE_PORT
    @database_admin_stub = Google::Gax::Grpc.create_stub(
      service_path,
      port,
      chan_creds: chan_creds,
      channel: channel,
      updater_proc: updater_proc,
      scopes: scopes,
      &Google::Spanner::Admin::Database::V1::DatabaseAdmin::Stub.method(:new)
    )

    @list_databases = Google::Gax.create_api_call(
      @database_admin_stub.method(:list_databases),
      defaults["list_databases"]
    )
    @create_database = Google::Gax.create_api_call(
      @database_admin_stub.method(:create_database),
      defaults["create_database"]
    )
    @get_database = Google::Gax.create_api_call(
      @database_admin_stub.method(:get_database),
      defaults["get_database"]
    )
    @update_database_ddl = Google::Gax.create_api_call(
      @database_admin_stub.method(:update_database_ddl),
      defaults["update_database_ddl"]
    )
    @drop_database = Google::Gax.create_api_call(
      @database_admin_stub.method(:drop_database),
      defaults["drop_database"]
    )
    @get_database_ddl = Google::Gax.create_api_call(
      @database_admin_stub.method(:get_database_ddl),
      defaults["get_database_ddl"]
    )
    @set_iam_policy = Google::Gax.create_api_call(
      @database_admin_stub.method(:set_iam_policy),
      defaults["set_iam_policy"]
    )
    @get_iam_policy = Google::Gax.create_api_call(
      @database_admin_stub.method(:get_iam_policy),
      defaults["get_iam_policy"]
    )
    @test_iam_permissions = Google::Gax.create_api_call(
      @database_admin_stub.method(:test_iam_permissions),
      defaults["test_iam_permissions"]
    )
  end

  # Service calls

  # Lists Cloud Spanner databases.
  #
  # @param parent [String]
  #   Required. The instance whose databases should be listed.
  #   Values are of the form +projects/<project>/instances/<instance>+.
  # @param page_size [Integer]
  #   The maximum number of resources contained in the underlying API
  #   response. If page streaming is performed per-resource, this
  #   parameter does not affect the return value. If page streaming is
  #   performed per-page, this determines the maximum number of
  #   resources in a page.
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @return [Google::Gax::PagedEnumerable<Google::Spanner::Admin::Database::V1::Database>]
  #   An enumerable of Google::Spanner::Admin::Database::V1::Database instances.
  #   See Google::Gax::PagedEnumerable documentation for other
  #   operations such as per-page iteration or access to the response
  #   object.
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/spanner/admin/database/v1"
  #
  #   database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
  #   formatted_parent = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.instance_path("[PROJECT]", "[INSTANCE]")
  #
  #   # Iterate over all results.
  #   database_admin_client.list_databases(formatted_parent).each do |element|
  #     # Process element.
  #   end
  #
  #   # Or iterate over results one page at a time.
  #   database_admin_client.list_databases(formatted_parent).each_page do |page|
  #     # Process each page at a time.
  #     page.each do |element|
  #       # Process element.
  #     end
  #   end

  def list_databases \
      parent,
      page_size: nil,
      options: nil
    req = {
      parent: parent,
      page_size: page_size
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::ListDatabasesRequest)
    @list_databases.call(req, options)
  end

  # Creates a new Cloud Spanner database and starts to prepare it for serving.
  # The returned {Google::Longrunning::Operation 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
  # {Google::Longrunning::Operation#metadata metadata} field type is
  # {Google::Spanner::Admin::Database::V1::CreateDatabaseMetadata CreateDatabaseMetadata}. The
  # {Google::Longrunning::Operation#response response} field type is
  # {Google::Spanner::Admin::Database::V1::Database Database}, if successful.
  #
  # @param parent [String]
  #   Required. The name of the instance that will serve the new database.
  #   Values are of the form +projects/<project>/instances/<instance>+.
  # @param create_statement [String]
  #   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 (+ + +).
  # @param extra_statements [Array<String>]
  #   An optional 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.
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @return [Google::Gax::Operation]
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/spanner/admin/database/v1"
  #
  #   database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
  #   formatted_parent = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.instance_path("[PROJECT]", "[INSTANCE]")
  #   create_statement = ''
  #
  #   # Register a callback during the method call.
  #   operation = database_admin_client.create_database(formatted_parent, create_statement) do |op|
  #     raise op.results.message if op.error?
  #     op_results = op.results
  #     # Process the results.
  #
  #     metadata = op.metadata
  #     # Process the metadata.
  #   end
  #
  #   # Or use the return value to register a callback.
  #   operation.on_done do |op|
  #     raise op.results.message if op.error?
  #     op_results = op.results
  #     # Process the results.
  #
  #     metadata = op.metadata
  #     # Process the metadata.
  #   end
  #
  #   # Manually reload the operation.
  #   operation.reload!
  #
  #   # Or block until the operation completes, triggering callbacks on
  #   # completion.
  #   operation.wait_until_done!

  def create_database \
      parent,
      create_statement,
      extra_statements: nil,
      options: nil
    req = {
      parent: parent,
      create_statement: create_statement,
      extra_statements: extra_statements
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::CreateDatabaseRequest)
    operation = Google::Gax::Operation.new(
      @create_database.call(req, options),
      @operations_client,
      Google::Spanner::Admin::Database::V1::Database,
      Google::Spanner::Admin::Database::V1::CreateDatabaseMetadata,
      call_options: options
    )
    operation.on_done { |operation| yield(operation) } if block_given?
    operation
  end

  # Gets the state of a Cloud Spanner database.
  #
  # @param name [String]
  #   Required. The name of the requested database. Values are of the form
  #   +projects/<project>/instances/<instance>/databases/<database>+.
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @return [Google::Spanner::Admin::Database::V1::Database]
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/spanner/admin/database/v1"
  #
  #   database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
  #   formatted_name = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
  #   response = database_admin_client.get_database(formatted_name)

  def get_database \
      name,
      options: nil
    req = {
      name: name
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::GetDatabaseRequest)
    @get_database.call(req, options)
  end

  # Updates the schema of a Cloud Spanner database by
  # creating/altering/dropping tables, columns, indexes, etc. The returned
  # {Google::Longrunning::Operation 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
  # {Google::Longrunning::Operation#metadata metadata} field type is
  # {Google::Spanner::Admin::Database::V1::UpdateDatabaseDdlMetadata UpdateDatabaseDdlMetadata}.  The operation has no response.
  #
  # @param database [String]
  #   Required. The database to update.
  # @param statements [Array<String>]
  #   DDL statements to be applied to the database.
  # @param operation_id [String]
  #   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
  #   {Google::Longrunning::Operation Operation}.
  #
  #   Specifying an explicit operation ID simplifies determining
  #   whether the statements were executed in the event that the
  #   {Google::Spanner::Admin::Database::V1::DatabaseAdmin::UpdateDatabaseDdl UpdateDatabaseDdl} call is replayed,
  #   or the return value is otherwise lost: the {Google::Spanner::Admin::Database::V1::UpdateDatabaseDdlRequest#database database} and
  #   +operation_id+ fields can be combined to form the
  #   {Google::Longrunning::Operation#name name} of the resulting
  #   {Google::Longrunning::Operation 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,
  #   {Google::Spanner::Admin::Database::V1::DatabaseAdmin::UpdateDatabaseDdl UpdateDatabaseDdl} returns
  #   +ALREADY_EXISTS+.
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @return [Google::Gax::Operation]
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/spanner/admin/database/v1"
  #
  #   database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
  #   formatted_database = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
  #   statements = []
  #
  #   # Register a callback during the method call.
  #   operation = database_admin_client.update_database_ddl(formatted_database, statements) do |op|
  #     raise op.results.message if op.error?
  #     op_results = op.results
  #     # Process the results.
  #
  #     metadata = op.metadata
  #     # Process the metadata.
  #   end
  #
  #   # Or use the return value to register a callback.
  #   operation.on_done do |op|
  #     raise op.results.message if op.error?
  #     op_results = op.results
  #     # Process the results.
  #
  #     metadata = op.metadata
  #     # Process the metadata.
  #   end
  #
  #   # Manually reload the operation.
  #   operation.reload!
  #
  #   # Or block until the operation completes, triggering callbacks on
  #   # completion.
  #   operation.wait_until_done!

  def update_database_ddl \
      database,
      statements,
      operation_id: nil,
      options: nil
    req = {
      database: database,
      statements: statements,
      operation_id: operation_id
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::UpdateDatabaseDdlRequest)
    operation = Google::Gax::Operation.new(
      @update_database_ddl.call(req, options),
      @operations_client,
      Google::Protobuf::Empty,
      Google::Spanner::Admin::Database::V1::UpdateDatabaseDdlMetadata,
      call_options: options
    )
    operation.on_done { |operation| yield(operation) } if block_given?
    operation
  end

  # Drops (aka deletes) a Cloud Spanner database.
  #
  # @param database [String]
  #   Required. The database to be dropped.
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/spanner/admin/database/v1"
  #
  #   database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
  #   formatted_database = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
  #   database_admin_client.drop_database(formatted_database)

  def drop_database \
      database,
      options: nil
    req = {
      database: database
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::DropDatabaseRequest)
    @drop_database.call(req, options)
    nil
  end

  # 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 {Google::Longrunning::Operations Operations} API.
  #
  # @param database [String]
  #   Required. The database whose schema we wish to get.
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @return [Google::Spanner::Admin::Database::V1::GetDatabaseDdlResponse]
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/spanner/admin/database/v1"
  #
  #   database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
  #   formatted_database = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
  #   response = database_admin_client.get_database_ddl(formatted_database)

  def get_database_ddl \
      database,
      options: nil
    req = {
      database: database
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::GetDatabaseDdlRequest)
    @get_database_ddl.call(req, options)
  end

  # Sets the access control policy on a database resource. Replaces any
  # existing policy.
  #
  # Authorization requires +spanner.databases.setIamPolicy+ permission on
  # {Google::Iam::V1::SetIamPolicyRequest#resource resource}.
  #
  # @param resource [String]
  #   REQUIRED: The resource for which the policy is being specified.
  #   +resource+ is usually specified as a path. For example, a Project
  #   resource is specified as +projects/{project}+.
  # @param policy [Google::Iam::V1::Policy | Hash]
  #   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.
  #   A hash of the same form as `Google::Iam::V1::Policy`
  #   can also be provided.
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @return [Google::Iam::V1::Policy]
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/spanner/admin/database/v1"
  #
  #   database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
  #   formatted_resource = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
  #   policy = {}
  #   response = database_admin_client.set_iam_policy(formatted_resource, policy)

  def set_iam_policy \
      resource,
      policy,
      options: nil
    req = {
      resource: resource,
      policy: policy
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Iam::V1::SetIamPolicyRequest)
    @set_iam_policy.call(req, options)
  end

  # Gets the access control policy for a database resource. Returns an empty
  # policy if a database exists but does not have a policy set.
  #
  # Authorization requires +spanner.databases.getIamPolicy+ permission on
  # {Google::Iam::V1::GetIamPolicyRequest#resource resource}.
  #
  # @param resource [String]
  #   REQUIRED: The resource for which the policy is being requested.
  #   +resource+ is usually specified as a path. For example, a Project
  #   resource is specified as +projects/{project}+.
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @return [Google::Iam::V1::Policy]
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/spanner/admin/database/v1"
  #
  #   database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
  #   formatted_resource = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
  #   response = database_admin_client.get_iam_policy(formatted_resource)

  def get_iam_policy \
      resource,
      options: nil
    req = {
      resource: resource
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Iam::V1::GetIamPolicyRequest)
    @get_iam_policy.call(req, options)
  end

  # Returns permissions that the caller has on the specified database 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.
  #
  # @param resource [String]
  #   REQUIRED: The resource for which the policy detail is being requested.
  #   +resource+ is usually specified as a path. For example, a Project
  #   resource is specified as +projects/{project}+.
  # @param permissions [Array<String>]
  #   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).
  # @param options [Google::Gax::CallOptions]
  #   Overrides the default settings for this call, e.g, timeout,
  #   retries, etc.
  # @return [Google::Iam::V1::TestIamPermissionsResponse]
  # @raise [Google::Gax::GaxError] if the RPC is aborted.
  # @example
  #   require "google/cloud/spanner/admin/database/v1"
  #
  #   database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
  #   formatted_resource = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
  #   permissions = []
  #   response = database_admin_client.test_iam_permissions(formatted_resource, permissions)

  def test_iam_permissions \
      resource,
      permissions,
      options: nil
    req = {
      resource: resource,
      permissions: permissions
    }.delete_if { |_, v| v.nil? }
    req = Google::Gax::to_proto(req, Google::Iam::V1::TestIamPermissionsRequest)
    @test_iam_permissions.call(req, options)
  end
end

Class Method Details

.database_path(project, instance, database) ⇒ String

Returns a fully-qualified database resource name string.

Parameters:

  • project (String)
  • instance (String)
  • database (String)

Returns:

  • (String) 


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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 109

def self.database_path project, instance, database
  DATABASE_PATH_TEMPLATE.render(
    :"project" => project,
    :"instance" => instance,
    :"database" => database
  )
end

.instance_path(project, instance) ⇒ String

Returns a fully-qualified instance resource name string.

Parameters:

  • project (String)
  • instance (String)

Returns:

  • (String) 


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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 97

def self.instance_path project, instance
  INSTANCE_PATH_TEMPLATE.render(
    :"project" => project,
    :"instance" => instance
  )
end

Instance Method Details

#create_database(parent, create_statement, extra_statements: nil, options: nil) ⇒ Google::Gax::Operation

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 +/operations/+ and can be used to track preparation of the database. The metadata field type is CreateDatabaseMetadata. The response field type is Database, if successful.

Examples:

require "google/cloud/spanner/admin/database/v1"

database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
formatted_parent = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.instance_path("[PROJECT]", "[INSTANCE]")
create_statement = ''

# Register a callback during the method call.
operation = database_admin_client.create_database(formatted_parent, create_statement) do |op|
  raise op.results.message if op.error?
  op_results = op.results
  # Process the results.

  metadata = op.metadata
  # Process the metadata.
end

# Or use the return value to register a callback.
operation.on_done do |op|
  raise op.results.message if op.error?
  op_results = op.results
  # Process the results.

  metadata = op.metadata
  # Process the metadata.
end

# Manually reload the operation.
operation.reload!

# Or block until the operation completes, triggering callbacks on
# completion.
operation.wait_until_done!

Parameters:

  • parent (String) —

    Required. The name of the instance that will serve the new database. Values are of the form +projects//instances/+.

  • create_statement (String) —

    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 (+ + +).

  • extra_statements (Array<String>) —

    An optional 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.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Returns:

  • (Google::Gax::Operation)

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 372

def create_database \
    parent,
    create_statement,
    extra_statements: nil,
    options: nil
  req = {
    parent: parent,
    create_statement: create_statement,
    extra_statements: extra_statements
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::CreateDatabaseRequest)
  operation = Google::Gax::Operation.new(
    @create_database.call(req, options),
    @operations_client,
    Google::Spanner::Admin::Database::V1::Database,
    Google::Spanner::Admin::Database::V1::CreateDatabaseMetadata,
    call_options: options
  )
  operation.on_done { |operation| yield(operation) } if block_given?
  operation
end

#drop_database(database, options: nil) ⇒ Object

Drops (aka deletes) a Cloud Spanner database.

Examples:

require "google/cloud/spanner/admin/database/v1"

database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
formatted_database = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
database_admin_client.drop_database(formatted_database)

Parameters:

  • database (String) —

    Required. The database to be dropped.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 529

def drop_database \
    database,
    options: nil
  req = {
    database: database
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::DropDatabaseRequest)
  @drop_database.call(req, options)
  nil
end

#get_database(name, options: nil) ⇒ Google::Spanner::Admin::Database::V1::Database

Gets the state of a Cloud Spanner database.

Examples:

require "google/cloud/spanner/admin/database/v1"

database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
formatted_name = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
response = database_admin_client.get_database(formatted_name)

Parameters:

  • name (String) —

    Required. The name of the requested database. Values are of the form +projects//instances//databases/+.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Returns:

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 411

def get_database \
    name,
    options: nil
  req = {
    name: name
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::GetDatabaseRequest)
  @get_database.call(req, options)
end

#get_database_ddl(database, options: nil) ⇒ Google::Spanner::Admin::Database::V1::GetDatabaseDdlResponse

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.

Examples:

require "google/cloud/spanner/admin/database/v1"

database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
formatted_database = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
response = database_admin_client.get_database_ddl(formatted_database)

Parameters:

  • database (String) —

    Required. The database whose schema we wish to get.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Returns:

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 558

def get_database_ddl \
    database,
    options: nil
  req = {
    database: database
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::GetDatabaseDdlRequest)
  @get_database_ddl.call(req, options)
end

#get_iam_policy(resource, options: nil) ⇒ Google::Iam::V1::Policy

Gets the access control policy for a database resource. Returns an empty policy if a database exists but does not have a policy set.

Authorization requires +spanner.databases.getIamPolicy+ permission on resource.

Examples:

require "google/cloud/spanner/admin/database/v1"

database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
formatted_resource = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
response = database_admin_client.get_iam_policy(formatted_resource)

Parameters:

  • resource (String) —

    REQUIRED: The resource for which the policy is being requested. +resource+ is usually specified as a path. For example, a Project resource is specified as +projects/project+.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Returns:

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 632

def get_iam_policy \
    resource,
    options: nil
  req = {
    resource: resource
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Iam::V1::GetIamPolicyRequest)
  @get_iam_policy.call(req, options)
end

#list_databases(parent, page_size: nil, options: nil) ⇒ Google::Gax::PagedEnumerable<Google::Spanner::Admin::Database::V1::Database>

Lists Cloud Spanner databases.

Examples:

require "google/cloud/spanner/admin/database/v1"

database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
formatted_parent = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.instance_path("[PROJECT]", "[INSTANCE]")

# Iterate over all results.
database_admin_client.list_databases(formatted_parent).each do |element|
  # Process element.
end

# Or iterate over results one page at a time.
database_admin_client.list_databases(formatted_parent).each_page do |page|
  # Process each page at a time.
  page.each do |element|
    # Process element.
  end
end

Parameters:

  • parent (String) —

    Required. The instance whose databases should be listed. Values are of the form +projects//instances/+.

  • page_size (Integer) —

    The maximum number of resources contained in the underlying API response. If page streaming is performed per-resource, this parameter does not affect the return value. If page streaming is performed per-page, this determines the maximum number of resources in a page.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Returns:

  • (Google::Gax::PagedEnumerable<Google::Spanner::Admin::Database::V1::Database>) —

    An enumerable of Google::Spanner::Admin::Database::V1::Database instances. See Google::Gax::PagedEnumerable documentation for other operations such as per-page iteration or access to the response object.

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 298

def list_databases \
    parent,
    page_size: nil,
    options: nil
  req = {
    parent: parent,
    page_size: page_size
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::ListDatabasesRequest)
  @list_databases.call(req, options)
end

#set_iam_policy(resource, policy, options: nil) ⇒ Google::Iam::V1::Policy

Sets the access control policy on a database resource. Replaces any existing policy.

Authorization requires +spanner.databases.setIamPolicy+ permission on resource.

Examples:

require "google/cloud/spanner/admin/database/v1"

database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
formatted_resource = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
policy = {}
response = database_admin_client.set_iam_policy(formatted_resource, policy)

Parameters:

  • resource (String) —

    REQUIRED: The resource for which the policy is being specified. +resource+ is usually specified as a path. For example, a Project resource is specified as +projects/project+.

  • policy (Google::Iam::V1::Policy | Hash) —

    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. A hash of the same form as Google::Iam::V1::Policy can also be provided.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Returns:

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 598

def set_iam_policy \
    resource,
    policy,
    options: nil
  req = {
    resource: resource,
    policy: policy
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Iam::V1::SetIamPolicyRequest)
  @set_iam_policy.call(req, options)
end

#test_iam_permissions(resource, permissions, options: nil) ⇒ Google::Iam::V1::TestIamPermissionsResponse

Returns permissions that the caller has on the specified database 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.

Examples:

require "google/cloud/spanner/admin/database/v1"

database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
formatted_resource = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
permissions = []
response = database_admin_client.test_iam_permissions(formatted_resource, permissions)

Parameters:

  • resource (String) —

    REQUIRED: The resource for which the policy detail is being requested. +resource+ is usually specified as a path. For example, a Project resource is specified as +projects/project+.

  • permissions (Array<String>) —

    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.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Returns:

  • (Google::Iam::V1::TestIamPermissionsResponse)

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 671

def test_iam_permissions \
    resource,
    permissions,
    options: nil
  req = {
    resource: resource,
    permissions: permissions
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Iam::V1::TestIamPermissionsRequest)
  @test_iam_permissions.call(req, options)
end

#update_database_ddl(database, statements, operation_id: nil, options: nil) ⇒ Google::Gax::Operation

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 +/operations/+ and can be used to track execution of the schema change(s). The metadata field type is UpdateDatabaseDdlMetadata. The operation has no response.

Examples:

require "google/cloud/spanner/admin/database/v1"

database_admin_client = Google::Cloud::Spanner::Admin::Database::V1.new
formatted_database = Google::Cloud::Spanner::Admin::Database::V1::DatabaseAdminClient.database_path("[PROJECT]", "[INSTANCE]", "[DATABASE]")
statements = []

# Register a callback during the method call.
operation = database_admin_client.update_database_ddl(formatted_database, statements) do |op|
  raise op.results.message if op.error?
  op_results = op.results
  # Process the results.

  metadata = op.metadata
  # Process the metadata.
end

# Or use the return value to register a callback.
operation.on_done do |op|
  raise op.results.message if op.error?
  op_results = op.results
  # Process the results.

  metadata = op.metadata
  # Process the metadata.
end

# Manually reload the operation.
operation.reload!

# Or block until the operation completes, triggering callbacks on
# completion.
operation.wait_until_done!

Parameters:

  • database (String) —

    Required. The database to update.

  • statements (Array<String>) —

    DDL statements to be applied to the database.

  • operation_id (String) —

    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: +/operations/+.

    +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+.

  • options (Google::Gax::CallOptions) —

    Overrides the default settings for this call, e.g, timeout, retries, etc.

Returns:

  • (Google::Gax::Operation)

Raises:

  • (Google::Gax::GaxError) —

    if the RPC is aborted.



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# File 'lib/google/cloud/spanner/admin/database/v1/database_admin_client.rb', line 492

def update_database_ddl \
    database,
    statements,
    operation_id: nil,
    options: nil
  req = {
    database: database,
    statements: statements,
    operation_id: operation_id
  }.delete_if { |_, v| v.nil? }
  req = Google::Gax::to_proto(req, Google::Spanner::Admin::Database::V1::UpdateDatabaseDdlRequest)
  operation = Google::Gax::Operation.new(
    @update_database_ddl.call(req, options),
    @operations_client,
    Google::Protobuf::Empty,
    Google::Spanner::Admin::Database::V1::UpdateDatabaseDdlMetadata,
    call_options: options
  )
  operation.on_done { |operation| yield(operation) } if block_given?
  operation
end