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# Copyright 2011-2013 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file 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.
module AWS
class RDS
# @attr_reader [Integer] allocated_storage
#
# @attr_reader [String] availability_zone_name
#
# @attr_reader [String] db_instance_id
#
# @attr_reader [String] engine
#
# @attr_reader [String] engine_version
#
# @attr_reader [String] license_model
#
# @attr_reader [String] master_username
#
# @attr_reader [String] port
#
# @attr_reader [Integer] vpc_id
#
# @attr_reader [String] snapshot_type
#
# @attr_reader [String] status
#
# @attr_reader [Time] created_at
#
# @attr_reader [Time] instance_create_time
#
class DBSnapshot < Core::Resource
# @param [String] db_snapshot_id
# @param [Hash] options
def initialize db_snapshot_id, options = {}
@db_snapshot_identifier = db_snapshot_id
super
end
# @return [String]
attr_reader :db_snapshot_identifier
alias_method :id, :db_snapshot_identifier
alias_method :db_snapshot_id, :db_snapshot_identifier
attribute :allocated_storage, :static => true, :alias => :size
attribute :availability_zone_name,
:from => :availability_zone,
:static => true
attribute :db_instance_id,
:from => :db_instance_identifier,
:static => true,
:alias => :db_instance_identifier
attribute :engine, :static => true
attribute :engine_version, :static => true
attribute :license_model, :static => true
attribute :master_username, :static => true
attribute :port, :static => true
attribute :vpc_id, :static => true
attribute :snapshot_type, :static => true, :alias => :type
attribute :status, :alias => :db_snapshot_status
attribute :created_at,
:from => :snapshot_create_time,
:static => true, :alias => :created_at
attribute :instance_create_time, :static => true
populates_from(:create_db_snapshot, :copy_db_snapshot) do |resp|
resp.data if resp[:db_snapshot_identifier] == id
end
populates_from(:describe_db_snapshots) do |resp|
resp.data[:db_snapshots].find{|s| s[:db_snapshot_identifier] == id }
end
# @return [DBInstance]
def db_instance
DBInstance.new(db_instance_id, :config => config)
end
# Copies this database snapshot.
# @param [String] new_snapshot_id
# @return [DBSnapshot]
def copy new_snapshot_id
options = {}
options[:source_db_snapshot_identifier] = id
options[:target_db_snapshot_identifier] = new_snapshot_id
resp = client.copy_db_snapshot(options)
DBSnapshot.new_from(:copy_db_snapshot, resp,
resp[:db_snapshot_identifier], :config => config)
end
# Deletes this database snapshot.
# @return [nil]
def delete
client.delete_db_snapshot(:db_snapshot_identifier => db_snapshot_identifier)
nil
end
# Restores the database instance from this snapshot. You may optionally
# specify the db instance id if you wish to restore to a different db.
#
# @param (see Client#restore_db_instance_from_db_snapshot)
# @option (see Client#restore_db_instance_from_db_snapshot)
def restore_instance options = {}
options[:db_snapshot_identifier] = db_snapshot_identifier
options[:db_instance_identifier] ||= db_instance_id
client.restore_db_instance_from_db_snapshot(options)
nil
end
# @return [Boolean] Returns `true` if the db snapshot exists.
def exists?
begin
get_resource
true
rescue AWS::RDS::Errors::DBSnapshotNotFound
false
end
end
protected
def resource_identifiers
[[:db_snapshot_identifier, id]]
end
def get_resource attr = nil
options = {}
options[:db_snapshot_identifier] = db_snapshot_identifier
client.describe_db_snapshots(options)
end
end
end
end
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