Class: Shoryuken::Fetcher

Inherits:
Object
  • Object
show all
Includes:
Util
Defined in:
lib/shoryuken/fetcher.rb

Constant Summary collapse

FETCH_LIMIT = 
10

Instance Method Summary collapse

Methods included from Util

#elapsed, #fire_event, #logger, #unparse_queues, #worker_name

Instance Method Details

#fetch(queue, available_processors) ⇒ Object 



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# File 'lib/shoryuken/fetcher.rb', line 7

def fetch(queue, available_processors)
  started_at = Time.now

  logger.debug { "Looking for new messages in '#{queue}'" }

  begin
    limit = available_processors > FETCH_LIMIT ? FETCH_LIMIT : available_processors

    sqs_msgs = Array(receive_messages(queue, limit))
    logger.info { "Found #{sqs_msgs.size} messages for '#{queue.name}'" } unless sqs_msgs.empty?
    logger.debug { "Fetcher for '#{queue}' completed in #{elapsed(started_at)} ms" }
    sqs_msgs
  rescue => ex
    logger.error { "Error fetching message: #{ex}" }
    logger.error { ex.backtrace.first }
    []
  end
end