Class: LogStash::Inputs::Jsqs

Inherits:
Threadable
  • Object
show all
Defined in:
lib/logstash/inputs/jsqs.rb

Instance Method Summary collapse

Instance Method Details

#register ⇒ Object 



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# File 'lib/logstash/inputs/jsqs.rb', line 37

def register
  @logger.info("Registering SQS input")

  # Client config
  @logger.debug("Creating AWS SQS queue client")
  clientConfig = ClientConfiguration.new.withMaxConnections(@max_connections)
  credentials = ProfileCredentialsProvider.new(@aws_profile)

  # SQS client
  @sqs = AmazonSQSAsyncClient.new(credentials, clientConfig)
  @logger.debug("Amazon SQS Client created")

  # Buffered client config
  queueBufferConfig = QueueBufferConfig.new.withMaxBatchOpenMs(@max_batch_open_ms).withMaxInflightReceiveBatches(@max_inflight_receive_batches).withMaxDoneReceiveBatches(@max_done_receive_batches)

  @bufferedSqs = AmazonSQSBufferedAsyncClient.new(@sqs, queueBufferConfig);
  @logger.info("Connected to AWS SQS queue successfully.", :queue => @queue)

  @receiveRequest = ReceiveMessageRequest.new(@queueUrl).withMaxNumberOfMessages(@max_number_of_messages)

end

#run(output_queue) ⇒ Object 



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# File 'lib/logstash/inputs/jsqs.rb', line 60

def run(output_queue)
  @logger.debug("Polling SQS queue", :queue => @queue)

  while !stop?
    begin
      result = @bufferedSqs.receiveMessage(@receiveRequest)            
      deleteEntries = [] 
      # Process messages (expected 0 - 10 messages)
      result.messages.each_with_index { |message, i|
          @codec.decode(message.body) do |event|
              if event.is_a?(Array)
                  event.each do |msg|
                      decorate(msg)
                      output_queue << msg
                  end
              else
                  decorate(event)
                  output_queue << event
              end
          end # codec.decode
          
          #Add Delete entry for this message
          deleteEntries << DeleteMessageBatchRequestEntry.new.withId(i.to_s).withReceiptHandle(message.getReceiptHandle())
      }
      if deleteEntries.size > 0
          deleteRequest = DeleteMessageBatchRequest.new.withQueueUrl(@queueUrl);
          deleteRequest.setEntries(deleteEntries);
          # Issue delete request
          @bufferedSqs.deleteMessageBatch(deleteRequest);            
      end # end if
    rescue Exception => e
      if (@retry_count -= 1) > 0
        @logger.warn("Unable to access SQS queue. Sleeping before retrying.", :error => e.to_s, :queue => @queue)
        sleep(10)
        retry
      else
       @logger.error("Unable to access SQS queue. Aborting.", :error => e.to_s, :queue => @queue)
       stop
      end # if
    end # begin
  end # polling loop
end

#stop ⇒ Object

def run



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# File 'lib/logstash/inputs/jsqs.rb', line 103

def stop
  @sqs = nil
  @bufferedSqs = nil
end