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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 ELB
class LoadBalancerPolicy < Core::Resource
# @api private
def initialize load_balancer, name, options = {}
@load_balancer = load_balancer
super(load_balancer, options.merge(:name => name.to_s))
end
# @return [LoadBalancer] Returns the load balancer this policy belongs to.
attr_reader :load_balancer
attribute :name, :static => true, :from => :policy_name
attribute :type, :static => true, :from => :policy_type_name
attribute :policy_attribute_descriptions, :static => true
protected :policy_attribute_descriptions
populates_from(:describe_load_balancer_policies) do |resp|
if resp.request_options[:load_balancer_name] == load_balancer.name
resp.policy_descriptions.find do |desc|
desc.policy_name == name
end
end
end
# @return [Hash] Returns a hash of policy attributes. Keys are
# policy attribute names, and values are arrays one or more policy
# attribute values.
def attributes
attributes = {}
policy_attribute_descriptions.each do |desc|
attributes[desc.attribute_name] ||= []
attributes[desc.attribute_name] << desc.attribute_value
end
attributes
end
# Deletes this load balancer policy.
# @return [nil]
def delete
client.delete_load_balancer_policy(
:load_balancer_name => load_balancer.name,
:policy_name => name)
nil
end
# Useful for determining if a policy with the given name exists:
#
# load_balancer.policies['my-policy-name'].exists? # => true/false
#
# @return [Boolean] Returns true this policy's load balancer has a
# policy with this name.
def exists?
r = get_resource
r.policy_descriptions.find{|d| d.policy_name == name } ? true : false
rescue AWS::ELB::Errors::LoadBalancerNotFound
false
end
protected
def resource_identifiers
[[:load_balancer_name, load_balancer.name],[:policy_name, name]]
end
protected
def get_resource attr_name = nil
client.describe_load_balancer_policies(
:load_balancer_name => load_balancer.name)
end
end
end
end
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