Module: DaemonObjects::AmqpSupport

Defined in:
lib/daemon_objects/amqp/runner.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#endpoint ⇒ Object

Returns the value of attribute endpoint.



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# File 'lib/daemon_objects/amqp/runner.rb', line 2

def endpoint
  @endpoint
end

#prefetch ⇒ Object

Returns the value of attribute prefetch.



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# File 'lib/daemon_objects/amqp/runner.rb', line 2

def prefetch
  @prefetch
end

#queue ⇒ Object

Returns the value of attribute queue.



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# File 'lib/daemon_objects/amqp/runner.rb', line 2

def queue
  @queue
end

#retry_wait_time ⇒ Object

Returns the value of attribute retry_wait_time.



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# File 'lib/daemon_objects/amqp/runner.rb', line 2

def retry_wait_time
  @retry_wait_time
end

#worker_class ⇒ Object

Returns the value of attribute worker_class.



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# File 'lib/daemon_objects/amqp/runner.rb', line 2

def worker_class
  @worker_class
end

Instance Method Details

#arguments ⇒ Object 



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# File 'lib/daemon_objects/amqp/runner.rb', line 5

def arguments
  @arguments ||= {}
end

#run ⇒ Object 



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# File 'lib/daemon_objects/amqp/runner.rb', line 13

def run
  logger.info "Preparing to start the AMQP watcher."

  connection = Bunny.new(endpoint) 
  connection.start

  Signal.trap("INT") do
    logger.info "Received signal 'INT'.  Exiting process"
    connection.close { EventMachine.stop } 
    exit
  end

  logger.info "Starting up the AMQP watcher."

  channel  = connection.create_channel
  channel.prefetch(1) if prefetch

  worker   = worker_class.new(
    channel, 
    get_consumer, 
    {
      :queue_name => queue,
      :logger     => logger,
      :arguments  => arguments
    })
  worker.start

  logger.info "AMQP worker started"

rescue Bunny::InternalError, Bunny::TCPConnectionFailed => e
  logger.error(e) && e.backtrace.join("\n")
  wait && retry
end

#wait ⇒ Object 



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# File 'lib/daemon_objects/amqp/runner.rb', line 47

def wait
  retry_message = "* Retrying connection in #{retry_wait_time} seconds .... *"
  sleep(retry_wait_time)
  logger.info("\n")
  logger.info("*" * retry_message.length)
  logger.info(retry_message)
  logger.info("*" * retry_message.length)
  logger.info("\n")
end