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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 EC2
class DHCPOptions < Resource
include TaggedItem
# @api private
def initialize dhcp_options_id, options = {}
@dhcp_options_id = dhcp_options_id
super
end
# @return [String]
attr_reader :dhcp_options_id
alias_method :id, :dhcp_options_id
attribute :dhcp_configuration_set, :static => true
protected :dhcp_configuration_set
populates_from(:create_dhcp_options) do |resp|
resp.dhcp_options if resp.dhcp_options.dhcp_options_id == id
end
populates_from(:describe_dhcp_options) do |resp|
resp.dhcp_options_set.find do |dhcp_options|
dhcp_options.dhcp_options_id == dhcp_options_id
end
end
# @return [Hash]
def configuration
dhcp_configuration_set.to_a.inject({}) do |config,opt|
key = opt[:key].gsub(/-/, '_').to_sym
values = opt[:value_set].map{|v| v[:value] }
values = values.first if key == :domain_name
values = values.first.to_i if key == :netbios_node_type
config.merge(key => values)
end
end
# Associates this set of options to the given VPC.
# @param [VPC,String] vpc A {VPC} object or a vpc id string.
# @return [nil]
def associate vpc
client_opts = {}
client_opts[:dhcp_options_id] = dhcp_options_id
client_opts[:vpc_id] = vpc_id_option(vpc)
client.associate_dhcp_options(client_opts)
nil
end
# Deletes these DHCP options. An error will be raised if these
# options are currently associated to a VPC. To disassociate this
# set of options from a VPC, associate a different set of options
# with the VPC.
#
# @return [nil]
#
def delete
client_opts = {}
client_opts[:dhcp_options_id] = dhcp_options_id
client.delete_dhcp_options(client_opts)
nil
end
# @return [VPCCollection] Returns a collection that represents
# all VPCs currently using this dhcp options.
def vpcs
vpcs = VPCCollection.new(:config => config)
vpcs.filter('dhcp-options-id', dhcp_options_id)
end
# @return [Boolean] Returns true if the dhcp options exists.
def exists?
begin
get_resource
true
rescue Errors::InvalidDhcpOptionID::NotFound
false
end
end
protected
def vpc_id_option vpc
vpc.is_a?(VPC) ? vpc.vpc_id : vpc
end
end
end
end
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