Class: Ayl::Beanstalk::Worker

Inherits:
Worker
  • Object
show all
Includes:
Pool, Logging
Defined in:
lib/ayl-beanstalk/worker.rb

Instance Method Summary collapse

Methods included from Pool

#pool

Constructor Details

#initialize(host = 'localhost', port = 11300) ⇒ Worker

Returns a new instance of Worker.



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# File 'lib/ayl-beanstalk/worker.rb', line 9

def initialize(host='localhost', port=11300)
  logger.debug "#{self.class.name}.initialize(#{host.inspect}, #{port})"
  @host = host
  @port = port
end

Instance Method Details

#process_messages ⇒ Object 



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# File 'lib/ayl-beanstalk/worker.rb', line 15

def process_messages
  logger.debug "#{self.class.name} entering process_messages loop watching: #{Ayl::MessageOptions.default_queue_name}"
  # trap('TERM') { puts "## Got the term signal"; @stop = true }
  # trap('INT') { puts "## Got the int signal"; @stop = true }
  # Set the queue that we will be watching
  pool.watch(Ayl::MessageOptions.default_queue_name)
  while true
    break if @stop
    job = pool.reserve
    break if job.nil?
    begin
      process_message(Ayl::Message.from_hash(job.ybody))
      job.delete
    rescue Ayl::UnrecoverableMessageException => ex
      logger.error "#{self.class.name} Unrecoverable exception in process_messages: #{ex}"
      job.delete
    rescue SystemExit
      # This exception is raised when 'Kernel.exit' is called. In this case
      # we want to make sure the job is deleted, then we simply re-raise
      # the exception and we go bye-bye.
      job.delete
      raise
    rescue Exception => ex
      logger.error "#{self.class.name} Exception in process_messages: #{ex}\n#{ex.backtrace.join("\n")}"
      logger.debug "Age of job: #{job.age}"
      if job.age > 60
        logger.debug "Deleting job"
        job.delete
      else
        logger.debug "Decaying job"
        job.decay
      end
    end
  end
end