Class: Vx::Consumer::Subscriber

Inherits:
Bunny::Consumer
  • Object
show all
Includes:
Instrument
Defined in:
lib/vx/consumer/subscriber.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Instrument

#instrument

Constructor Details

#initialize(*args) ⇒ Subscriber

Returns a new instance of Subscriber.



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# File 'lib/vx/consumer/subscriber.rb', line 12

def initialize(*args)
  super(*args)
  @lock = Mutex.new
end

Instance Attribute Details

#queue_name ⇒ Object

Returns the value of attribute queue_name.



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# File 'lib/vx/consumer/subscriber.rb', line 10

def queue_name
  @queue_name
end

#vx_consumer_name ⇒ Object

Returns the value of attribute vx_consumer_name.



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# File 'lib/vx/consumer/subscriber.rb', line 10

def vx_consumer_name
  @vx_consumer_name
end

Instance Method Details

#call(*args) ⇒ Object 



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# File 'lib/vx/consumer/subscriber.rb', line 49

def call(*args)
  in_progress do
    @on_delivery.call(*args) if @on_delivery
    sleep 0
  end
end

#cancel ⇒ Object 



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# File 'lib/vx/consumer/subscriber.rb', line 56

def cancel
  instrument('cancel_consumer', consumer: vx_consumer_name, channel: channel.id)
  unless closed?
    super
    channel.close unless closed?
  end
end

#closed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vx/consumer/subscriber.rb', line 64

def closed?
  channel.closed?
end

#graceful_shutdown ⇒ Object 



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# File 'lib/vx/consumer/subscriber.rb', line 17

def graceful_shutdown
  instrument('try_graceful_shutdown_consumer', consumer: vx_consumer_name)
  in_progress do
    cancel
    instrument('graceful_shutdown_consumer', consumer: vx_consumer_name)
  end
end

#in_progress ⇒ Object 



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# File 'lib/vx/consumer/subscriber.rb', line 39

def in_progress
  @lock.synchronize do
    yield
  end
end

#join ⇒ Object 



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# File 'lib/vx/consumer/subscriber.rb', line 68

def join
  channel.work_pool.join
end

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vx/consumer/subscriber.rb', line 45

def running?
  @lock.locked?
end

#try_graceful_shutdown ⇒ Object 



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# File 'lib/vx/consumer/subscriber.rb', line 25

def try_graceful_shutdown
  if @lock.try_lock
    begin
      instrument('graceful_shutdown_consumer', consumer: vx_consumer_name)
      cancel
    ensure
      @lock.unlock
    end
    true
  else
    false
  end
end

#wait_shutdown ⇒ Object 



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# File 'lib/vx/consumer/subscriber.rb', line 72

def wait_shutdown
  Thread.new do
    Thread.current.abort_on_exception = true
    Consumer.wait_shutdown
    cancel
  end
end