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service.rb
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service.rb
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# Copyright 2016 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.
require "google/cloud/spanner/errors"
require "google/cloud/spanner/credentials"
require "google/cloud/spanner/version"
require "google/cloud/spanner/v1"
require "google/cloud/spanner/admin/instance/v1"
require "google/cloud/spanner/admin/database/v1"
require "google/cloud/spanner/convert"
module Google
module Cloud
module Spanner
##
# @private Represents the gRPC Spanner service, including all the API
# methods.
class Service
attr_accessor :project
attr_accessor :credentials
attr_accessor :timeout
attr_accessor :host
attr_accessor :lib_name
attr_accessor :lib_version
attr_accessor :quota_project
##
# Creates a new Service instance.
def initialize project, credentials, quota_project: nil,
host: nil, timeout: nil, lib_name: nil, lib_version: nil
@project = project
@credentials = credentials
@quota_project = quota_project || (credentials.quota_project_id if credentials.respond_to? :quota_project_id)
@host = host
@timeout = timeout
@lib_name = lib_name
@lib_version = lib_version
end
def channel
require "grpc"
GRPC::Core::Channel.new host, chan_args, chan_creds
end
def chan_args
{ "grpc.service_config_disable_resolution" => 1 }
end
def chan_creds
return credentials if insecure?
require "grpc"
GRPC::Core::ChannelCredentials.new.compose \
GRPC::Core::CallCredentials.new credentials.client.updater_proc
end
def service
return mocked_service if mocked_service
@service ||= \
V1::Spanner::Client.new do |config|
config.credentials = channel
config.quota_project = @quota_project
config.timeout = timeout if timeout
config.endpoint = host if host
config.lib_name = lib_name_with_prefix
config.lib_version = Google::Cloud::Spanner::VERSION
config.metadata = { "google-cloud-resource-prefix" => "projects/#{@project}" }
end
end
attr_accessor :mocked_service
def instances
return mocked_instances if mocked_instances
@instances ||= \
Admin::Instance::V1::InstanceAdmin::Client.new do |config|
config.credentials = channel
config.quota_project = @quota_project
config.timeout = timeout if timeout
config.endpoint = host if host
config.lib_name = lib_name_with_prefix
config.lib_version = Google::Cloud::Spanner::VERSION
config.metadata = { "google-cloud-resource-prefix" => "projects/#{@project}" }
end
end
attr_accessor :mocked_instances
def databases
return mocked_databases if mocked_databases
@databases ||= \
Admin::Database::V1::DatabaseAdmin::Client.new do |config|
config.credentials = channel
config.quota_project = @quota_project
config.timeout = timeout if timeout
config.endpoint = host if host
config.lib_name = lib_name_with_prefix
config.lib_version = Google::Cloud::Spanner::VERSION
config.metadata = { "google-cloud-resource-prefix" => "projects/#{@project}" }
end
end
attr_accessor :mocked_databases
def insecure?
credentials == :this_channel_is_insecure
end
def list_instances token: nil, max: nil, call_options: nil
opts = default_options call_options: call_options
request = {
parent: project_path,
page_size: max,
page_token: token
}
paged_enum = instances.list_instances request, opts
paged_enum.response
end
def get_instance name, call_options: nil
opts = default_options call_options: call_options
request = { name: instance_path(name) }
instances.get_instance request, opts
end
def create_instance instance_id, name: nil, config: nil, nodes: nil,
processing_units: nil, labels: nil,
call_options: nil
opts = default_options call_options: call_options
labels = labels.to_h { |k, v| [String(k), String(v)] } if labels
create_obj = Admin::Instance::V1::Instance.new({
display_name: name, config: instance_config_path(config),
node_count: nodes, processing_units: processing_units,
labels: labels
}.delete_if { |_, v| v.nil? })
request = {
parent: project_path,
instance_id: instance_id,
instance: create_obj
}
instances.create_instance request, opts
end
def update_instance instance, field_mask: nil, call_options: nil
opts = default_options call_options: call_options
if field_mask.nil? || field_mask.empty?
field_mask = %w[display_name node_count labels]
end
request = {
instance: instance,
field_mask: Google::Protobuf::FieldMask.new(paths: field_mask)
}
instances.update_instance request, opts
end
def delete_instance name, call_options: nil
opts = default_options call_options: call_options
request = { name: instance_path(name) }
instances.delete_instance request, opts
end
def get_instance_policy name, call_options: nil
opts = default_options call_options: call_options
request = { resource: instance_path(name) }
instances.get_iam_policy request, opts
end
def set_instance_policy name, new_policy, call_options: nil
opts = default_options call_options: call_options
request = {
resource: instance_path(name),
policy: new_policy
}
instances.set_iam_policy request, opts
end
def test_instance_permissions name, permissions, call_options: nil
opts = default_options call_options: call_options
request = {
resource: instance_path(name),
permissions: permissions
}
instances.test_iam_permissions request, opts
end
def list_instance_configs token: nil, max: nil, call_options: nil
opts = default_options call_options: call_options
request = { parent: project_path, page_size: max, page_token: token }
paged_enum = instances.list_instance_configs request, opts
paged_enum.response
end
def get_instance_config name, call_options: nil
opts = default_options call_options: call_options
request = { name: instance_config_path(name) }
instances.get_instance_config request, opts
end
def list_databases instance_id, token: nil, max: nil, call_options: nil
opts = default_options call_options: call_options
request = {
parent: instance_path(instance_id),
page_size: max,
page_token: token
}
paged_enum = databases.list_databases request, opts
paged_enum.response
end
def get_database instance_id, database_id, call_options: nil
opts = default_options call_options: call_options
request = { name: database_path(instance_id, database_id) }
databases.get_database request, opts
end
def create_database instance_id, database_id, statements: [],
call_options: nil, encryption_config: nil
opts = default_options call_options: call_options
request = {
parent: instance_path(instance_id),
create_statement: "CREATE DATABASE `#{database_id}`",
extra_statements: Array(statements),
encryption_config: encryption_config
}
databases.create_database request, opts
end
def drop_database instance_id, database_id, call_options: nil
opts = default_options call_options: call_options
request = { database: database_path(instance_id, database_id) }
databases.drop_database request, opts
end
def get_database_ddl instance_id, database_id, call_options: nil
opts = default_options call_options: call_options
request = { database: database_path(instance_id, database_id) }
databases.get_database_ddl request, opts
end
def update_database_ddl instance_id, database_id, statements: [],
operation_id: nil, call_options: nil
opts = default_options call_options: call_options
request = {
database: database_path(instance_id, database_id),
statements: Array(statements),
operation_id: operation_id
}
databases.update_database_ddl request, opts
end
def get_database_policy instance_id, database_id, call_options: nil
opts = default_options call_options: call_options
request = { resource: database_path(instance_id, database_id) }
databases.get_iam_policy request, opts
end
def set_database_policy instance_id, database_id, new_policy,
call_options: nil
opts = default_options call_options: call_options
request = {
resource: database_path(instance_id, database_id),
policy: new_policy
}
databases.set_iam_policy request, opts
end
def test_database_permissions instance_id, database_id, permissions,
call_options: nil
opts = default_options call_options: call_options
request = {
resource: database_path(instance_id, database_id),
permissions: permissions
}
databases.test_iam_permissions request, opts
end
def get_session session_name, call_options: nil
opts = default_options session_name: session_name,
call_options: call_options
service.get_session({ name: session_name }, opts)
end
def create_session database_name, labels: nil,
call_options: nil, database_role: nil
opts = default_options session_name: database_name,
call_options: call_options
session = V1::Session.new labels: labels, creator_role: database_role if labels || database_role
service.create_session(
{ database: database_name, session: session }, opts
)
end
def batch_create_sessions database_name, session_count, labels: nil,
call_options: nil, database_role: nil
opts = default_options session_name: database_name,
call_options: call_options
session = V1::Session.new labels: labels, creator_role: database_role if labels || database_role
# The response may have fewer sessions than requested in the RPC.
request = {
database: database_name,
session_count: session_count,
session_template: session
}
service.batch_create_sessions request, opts
end
def delete_session session_name, call_options: nil
opts = default_options session_name: session_name,
call_options: call_options
service.delete_session({ name: session_name }, opts)
end
def execute_streaming_sql session_name, sql, transaction: nil,
params: nil, types: nil, resume_token: nil,
partition_token: nil, seqno: nil,
query_options: nil, request_options: nil,
call_options: nil
opts = default_options session_name: session_name,
call_options: call_options
request = {
session: session_name,
sql: sql,
transaction: transaction,
params: params,
param_types: types,
resume_token: resume_token,
partition_token: partition_token,
seqno: seqno,
query_options: query_options,
request_options: request_options
}
service.execute_streaming_sql request, opts
end
def execute_batch_dml session_name, transaction, statements, seqno,
request_options: nil, call_options: nil
opts = default_options session_name: session_name,
call_options: call_options
statements = statements.map(&:to_grpc)
request = {
session: session_name,
transaction: transaction,
statements: statements,
seqno: seqno,
request_options: request_options
}
results = service.execute_batch_dml request, opts
if results.status.code.zero?
results.result_sets.map { |rs| rs.stats.row_count_exact }
else
begin
raise Google::Cloud::Error.from_error results.status
rescue Google::Cloud::Error
raise Google::Cloud::Spanner::BatchUpdateError.from_grpc results
end
end
end
def streaming_read_table session_name, table_name, columns, keys: nil,
index: nil, transaction: nil, limit: nil,
resume_token: nil, partition_token: nil,
request_options: nil, call_options: nil
opts = default_options session_name: session_name,
call_options: call_options
request = {
session: session_name, table: table_name, columns: columns,
key_set: keys, transaction: transaction, index: index,
limit: limit, resume_token: resume_token,
partition_token: partition_token, request_options: request_options
}
service.streaming_read request, opts
end
def partition_read session_name, table_name, columns, transaction,
keys: nil, index: nil, partition_size_bytes: nil,
max_partitions: nil, call_options: nil
partition_opts = partition_options partition_size_bytes,
max_partitions
opts = default_options session_name: session_name,
call_options: call_options
request = {
session: session_name, table: table_name, key_set: keys,
transaction: transaction, index: index, columns: columns,
partition_options: partition_opts
}
service.partition_read request, opts
end
def partition_query session_name, sql, transaction, params: nil,
types: nil, partition_size_bytes: nil,
max_partitions: nil, call_options: nil
partition_opts = partition_options partition_size_bytes,
max_partitions
opts = default_options session_name: session_name,
call_options: call_options
request = {
session: session_name, sql: sql, transaction: transaction,
params: params, param_types: types,
partition_options: partition_opts
}
service.partition_query request, opts
end
def commit session_name, mutations = [], transaction_id: nil,
commit_options: nil, request_options: nil, call_options: nil
tx_opts = nil
if transaction_id.nil?
tx_opts = V1::TransactionOptions.new(
read_write: V1::TransactionOptions::ReadWrite.new
)
end
opts = default_options session_name: session_name,
call_options: call_options
request = {
session: session_name, transaction_id: transaction_id,
single_use_transaction: tx_opts, mutations: mutations,
request_options: request_options
}
if commit_options
request[:return_commit_stats] = commit_options[:return_commit_stats]
end
service.commit request, opts
end
def rollback session_name, transaction_id, call_options: nil
opts = default_options session_name: session_name,
call_options: call_options
request = { session: session_name, transaction_id: transaction_id }
service.rollback request, opts
end
def begin_transaction session_name, request_options: nil,
call_options: nil
tx_opts = V1::TransactionOptions.new(
read_write: V1::TransactionOptions::ReadWrite.new
)
opts = default_options session_name: session_name,
call_options: call_options
request = {
session: session_name,
options: tx_opts,
request_options: request_options
}
service.begin_transaction request, opts
end
def create_snapshot session_name, strong: nil, timestamp: nil,
staleness: nil, call_options: nil
tx_opts = V1::TransactionOptions.new(
read_only: V1::TransactionOptions::ReadOnly.new(
{
strong: strong,
read_timestamp: Convert.time_to_timestamp(timestamp),
exact_staleness: Convert.number_to_duration(staleness),
return_read_timestamp: true
}.delete_if { |_, v| v.nil? }
)
)
opts = default_options session_name: session_name,
call_options: call_options
request = { session: session_name, options: tx_opts }
service.begin_transaction request, opts
end
def create_pdml session_name, call_options: nil
tx_opts = V1::TransactionOptions.new(
partitioned_dml: V1::TransactionOptions::PartitionedDml.new
)
opts = default_options session_name: session_name,
call_options: call_options
request = { session: session_name, options: tx_opts }
service.begin_transaction request, opts
end
def create_backup instance_id, database_id, backup_id, expire_time,
version_time, call_options: nil,
encryption_config: nil
opts = default_options call_options: call_options
backup = {
database: database_path(instance_id, database_id),
expire_time: expire_time,
version_time: version_time
}
request = {
parent: instance_path(instance_id),
backup_id: backup_id,
backup: backup,
encryption_config: encryption_config
}
databases.create_backup request, opts
end
def get_backup instance_id, backup_id, call_options: nil
opts = default_options call_options: call_options
request = { name: backup_path(instance_id, backup_id) }
databases.get_backup request, opts
end
def update_backup backup, update_mask, call_options: nil
opts = default_options call_options: call_options
request = { backup: backup, update_mask: update_mask }
databases.update_backup request, opts
end
def delete_backup instance_id, backup_id, call_options: nil
opts = default_options call_options: call_options
request = { name: backup_path(instance_id, backup_id) }
databases.delete_backup request, opts
end
def list_backups instance_id,
filter: nil, page_size: nil, page_token: nil,
call_options: nil
opts = default_options call_options: call_options
request = {
parent: instance_path(instance_id),
filter: filter,
page_size: page_size,
page_token: page_token
}
databases.list_backups request, opts
end
def list_database_operations instance_id,
filter: nil,
page_size: nil,
page_token: nil,
call_options: nil
opts = default_options call_options: call_options
request = {
parent: instance_path(instance_id),
filter: filter,
page_size: page_size,
page_token: page_token
}
databases.list_database_operations request, opts
end
def list_backup_operations instance_id,
filter: nil, page_size: nil,
page_token: nil,
call_options: nil
opts = default_options call_options: call_options
request = {
parent: instance_path(instance_id),
filter: filter,
page_size: page_size,
page_token: page_token
}
databases.list_backup_operations request, opts
end
def restore_database backup_instance_id, backup_id,
database_instance_id, database_id,
call_options: nil, encryption_config: nil
opts = default_options call_options: call_options
request = {
parent: instance_path(database_instance_id),
database_id: database_id,
backup: backup_path(backup_instance_id, backup_id),
encryption_config: encryption_config
}
databases.restore_database request, opts
end
def inspect
"#{self.class}(#{@project})"
end
protected
def lib_name_with_prefix
return "gccl" if [nil, "gccl"].include? lib_name
value = lib_name.dup
value << "/#{lib_version}" if lib_version
value << " gccl"
end
def default_options session_name: nil, call_options: nil
opts = {}
if session_name
default_prefix = session_name.split("/sessions/").first
opts[:metadata] = { "google-cloud-resource-prefix" => default_prefix }
end
if call_options
opts[:timeout] = call_options[:timeout] if call_options[:timeout]
opts[:retry_policy] = call_options[:retry_policy] if call_options[:retry_policy]
end
::Gapic::CallOptions.new(**opts)
end
def partition_options partition_size_bytes, max_partitions
return nil unless partition_size_bytes || max_partitions
partition_opts = V1::PartitionOptions.new
if partition_size_bytes
partition_opts.partition_size_bytes = partition_size_bytes
end
partition_opts.max_partitions = max_partitions if max_partitions
partition_opts
end
def project_path
Admin::Instance::V1::InstanceAdmin::Paths.project_path \
project: project
end
def instance_path name
return name if name.to_s.include? "/"
Admin::Instance::V1::InstanceAdmin::Paths.instance_path \
project: project, instance: name
end
def instance_config_path name
return name if name.to_s.include? "/"
Admin::Instance::V1::InstanceAdmin::Paths.instance_config_path \
project: project, instance_config: name
end
def database_path instance_id, database_id
Admin::Database::V1::DatabaseAdmin::Paths.database_path \
project: project, instance: instance_id, database: database_id
end
def session_path instance_id, database_id, session_id
V1::Spanner::Paths.session_path \
project: project, instance: instance_id, database: database_id,
session: session_id
end
def backup_path instance_id, backup_id
Admin::Database::V1::DatabaseAdmin::Paths.backup_path \
project: project, instance: instance_id, backup: backup_id
end
end
end
end
end