Class: EventQ::Amazon::QueueWorker
- Inherits:
-
Object
- Object
- EventQ::Amazon::QueueWorker
- Includes:
- WorkerId
- Defined in:
- lib/eventq/eventq_aws/aws_queue_worker.rb
Constant Summary collapse
- APPROXIMATE_RECEIVE_COUNT =
'ApproximateReceiveCount'
- MESSAGE =
'Message'
- AWS_MAX_VISIBILITY_TIMEOUT =
12h
43_200
Instance Attribute Summary collapse
-
#context ⇒ Object
Returns the value of attribute context.
Instance Method Summary collapse
-
#acknowledge_message(poller, msg) ⇒ Object
Logic for the RabbitMq adapter when a message is accepted.
- #configure(options = {}) ⇒ Object
- #deserialize_message(payload) ⇒ Object
-
#initialize ⇒ QueueWorker
constructor
A new instance of QueueWorker.
- #pre_process(context, options) ⇒ Object
- #serialize_message(msg) ⇒ Object
- #thread_process_iteration(queue, options, block) ⇒ Object
Methods included from WorkerId
#tag_processing_thread, #untag_processing_thread
Constructor Details
#initialize ⇒ QueueWorker
Returns a new instance of QueueWorker.
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# File 'lib/eventq/eventq_aws/aws_queue_worker.rb', line 17 def initialize @serialization_provider_manager = EventQ::SerializationProviders::Manager.new @signature_provider_manager = EventQ::SignatureProviders::Manager.new @calculate_visibility_timeout = Amazon::CalculateVisibilityTimeout.new( max_timeout: AWS_MAX_VISIBILITY_TIMEOUT ) end |
Instance Attribute Details
#context ⇒ Object
Returns the value of attribute context.
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# File 'lib/eventq/eventq_aws/aws_queue_worker.rb', line 15 def context @context end |
Instance Method Details
#acknowledge_message(poller, msg) ⇒ Object
Logic for the RabbitMq adapter when a message is accepted
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# File 'lib/eventq/eventq_aws/aws_queue_worker.rb', line 77 def (poller, msg) poller.(msg) end |
#configure(options = {}) ⇒ Object
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# File 'lib/eventq/eventq_aws/aws_queue_worker.rb', line 70 def configure( = {}) [:queue_poll_wait] ||= 10 EventQ.logger.info("[#{self.class}] - Configuring. Queue Poll Wait: #{[:queue_poll_wait]}") end |
#deserialize_message(payload) ⇒ Object
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# File 'lib/eventq/eventq_aws/aws_queue_worker.rb', line 60 def (payload) provider = @serialization_provider_manager.get_provider(EventQ::Configuration.serialization_provider) provider.deserialize(payload) end |
#pre_process(context, options) ⇒ Object
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# File 'lib/eventq/eventq_aws/aws_queue_worker.rb', line 25 def pre_process(context, ) # don't do anything specific to set up the process before threads are fired off. end |
#serialize_message(msg) ⇒ Object
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# File 'lib/eventq/eventq_aws/aws_queue_worker.rb', line 65 def (msg) provider = @serialization_provider_manager.get_provider(EventQ::Configuration.serialization_provider) provider.serialize(msg) end |
#thread_process_iteration(queue, options, block) ⇒ Object
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# File 'lib/eventq/eventq_aws/aws_queue_worker.rb', line 29 def thread_process_iteration(queue, , block) client = [:client] manager = [:manager] || EventQ::Amazon::QueueManager.new({ client: client }) # get the queue queue_url = manager.get_queue(queue) poller = Aws::SQS::QueuePoller.new(queue_url, attribute_names: [APPROXIMATE_RECEIVE_COUNT]) # Polling will block indefinitely unless we force it to stop poller.before_request do |stats| unless context.running? EventQ.logger.info("AWS Poller shutting down") throw :stop_polling end end poller.poll(skip_delete: true, wait_time_seconds: [:queue_poll_wait]) do |msg, stats| begin tag_processing_thread (msg, poller, queue, block) rescue => e EventQ.logger.error do "[#{self.class}] - An unhandled error occurred. Error: #{e} | Backtrace: #{e.backtrace}" end context.call_on_error_block(error: e) ensure untag_processing_thread end end end |