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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 Listener
include Core::Model
# @param [LoadBalancer] load_balancer The load balancer this listener
# belongs to.
#
# @param [Integer] port The external load balancer port number.
#
# @param [Hash] options
#
# @option (see ListenerCollection#create)
#
def initialize load_balancer, port, options = {}
@load_balancer = load_balancer
@port = port.to_i
@protocol = options[:protocol]
@instance_port = options[:instance_port]
@instance_protocol = options[:instance_protocol]
super
end
# @return [LoadBalancer]
attr_reader :load_balancer
# @return [Integer]
attr_reader :port
# @return [Symbol] Returns the protocl for this listener.
def protocol
proto = @protocol ||= _description[:listener][:protocol]
proto.to_s.downcase.to_sym
end
# @return [Integer]
def instance_port
@instance_port ||= _description[:listener][:instance_port]
end
# @return [Symbol]
def instance_protocol
proto = @instance_protocol ||= _description[:listener][:instance_protocol]
proto.to_s.downcase.to_sym
end
# Sets the certificate that terminates the specified listener's SSL
# connections. The specified certificate replaces any prior
# certificate for this listener.
#
# @param [String,IAM::ServerCertificate] server_certificate The ARN
# of an IAM::ServerCertificate or an IAM::ServerCertificate object.
#
# @return [nil]
#
def server_certificate= server_certificate
arn = server_certificate.is_a?(IAM::ServerCertificate) ?
server_certificate.arn : server_certificate
client.set_load_balancer_listener_ssl_certificate(
:load_balancer_name => load_balancer.name,
:load_balancer_port => port,
:ssl_certificate_id => arn)
nil
end
# @return [IAM::ServerCertificate,nil] Returns the IAM::ServerCertificate
# associated with this listener, or nil if there is none.
def server_certificate
desc = _description
if desc[:listener][:ssl_certificate_id]
AWS.memoize do
arn = desc[:listener][:ssl_certificate_id]
iam = IAM.new(:config => config)
iam.server_certificates.find{|cert| cert.arn == arn }
end
else
nil
end
end
# @return [LoadBalancerPolicy,nil] Returns the current policy for this
# listener. Returns nil if no load balancer policy has been
# associated with it.
def policy
policy_name = _description[:policy_names].first
policy_name ? load_balancer.policies[policy_name] : nil
end
# @param [String,LoadBalancerPolicy] policy_or_policy_name Sets
# the policy for this listener.
# @return [LoadBalancerPolicy]
def policy= policy_or_policy_name
policy_name = policy_or_policy_name.is_a?(LoadBalancerPolicy) ?
policy_or_policy_name.name : policy_or_policy_name.to_s
client.set_load_balancer_policies_of_listener(
:load_balancer_name => load_balancer.name,
:load_balancer_port => port,
:policy_names => [policy_name])
LoadBalancerPolicy.new(load_balancer, policy_name, :config => config)
end
# Removes the current policy from this listener.
# @return [nil]
def remove_policy
client.set_load_balancer_policies_of_listener(
:load_balancer_name => load_balancer.name,
:load_balancer_port => port,
:policy_names => [])
nil
end
# Returns true if this listener exists.
#
# load_balancer = ELB.new.load_balancers['my-load-balancer']
# listener = load_balancer.listeners[80] # port 80
# listener.exists?
#
# @return [Boolean] Returns true if the load balancer has a listener
# on this port.
def exists?
!_description.nil?
rescue AWS::Core::Resource::NotFound
false
end
# Deletes the listener from its load balancer.
# @return [nil]
def delete
client.delete_load_balancer_listeners(
:load_balancer_name => load_balancer.name,
:load_balancer_ports => [port])
nil
end
# @api private
def inspect
"#{self.class.name} port:#{port}>"
end
# @api private
def eql? other
other.is_a?(Listener) and
other.load_balancer == load_balancer and
other.port == port
end
alias_method :==, :eql?
protected
def _description
load_balancer.listener_descriptions.find do |desc|
desc[:listener][:load_balancer_port] == port
end
end
end
end
end
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