Class: LambdaQueuer

Inherits:
Object
  • Object
show all
Defined in:
lib/lambda-queuer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ LambdaQueuer

Returns a new instance of LambdaQueuer.



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# File 'lib/lambda-queuer.rb', line 7

def initialize(options = {})
	@host = options[:host] || '127.0.0.1'
	@port = options[:port] || 5672
	@exchange = options[:exchange] || 'default_exchange'
	@request_routing_key = options[:request_routing_key] || 'default_routing_key'
	@response_routing_key = options[:response_routing_key]
end

Instance Attribute Details

#queue ⇒ Object

Returns the value of attribute queue.



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# File 'lib/lambda-queuer.rb', line 6

def queue
  @queue
end

Instance Method Details

#post(&block) ⇒ Object 



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# File 'lib/lambda-queuer.rb', line 15

def post(&block)
	EventMachine.run do
		begin
			connection = AMQP.connect(:host => @host, :port => @port)
		  	channel = AMQP::Channel.new(connection)
		  	exchange = channel.direct(@exchange, :auto_delete => true)
		  	@queue = channel.queue(@request_routing_key, :auto_delete => true)
		  	@queue.bind(exchange, :routing_key => @request_routing_key)
			v = block.to_source
		  	exchange.publish(v, :routing_key => @request_routing_key)
			if (@response_routing_key)
			  	@answer_queue = channel.queue(@response_routing_key, :auto_delete => true)
			  	@answer_queue.bind(exchange, :routing_key => @response_routing_key)
				@answer_queue.subscribe do |message|
					puts "Received: #{message}"
					connection.close { EventMachine.stop }
				end
			else
				EventMachine.add_timer(2) do
					connection.close { EventMachine.stop }
				end
			end
		rescue => e
			puts e
		end
	end
end