Class: Huck::Receivers::SQSReceiver

Inherits:
Huck::Receiver show all
Defined in:
lib/huck/receivers/sqs.rb

Overview

A receiver that talks to Amazon Simple Queue Service

Instance Attribute Summary

Attributes inherited from Huck::Receiver

#config

Instance Method Summary collapse

Methods inherited from Huck::Receiver

#accept, factory

Constructor Details

#initialize ⇒ SQSReceiver

Includes all required modules for the SQS receiver



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# File 'lib/huck/receivers/sqs.rb', line 9

def initialize
  Huck::must_load 'aws-sdk'
end

Instance Method Details

#receive ⇒ Object

A long-running poller process which reads messages out of the remote queue and yields them to higher-order logic.



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# File 'lib/huck/receivers/sqs.rb', line 29

def receive
  verify_config

  sqs = AWS::SQS.new(
    :access_key_id => @config['sqs']['access_key_id'],
    :secret_access_key => @config['sqs']['secret_access_key'],
    :region => @config['sqs']['region']
  )

  queue = sqs.queues.create @config['sqs']['queue_name']
  queue.poll do |msg|
    yield msg.body
  end
end

#verify_config ⇒ Object

Ensures that configuration is set properly before trying to use the connection data to talk to AWS



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# File 'lib/huck/receivers/sqs.rb', line 15

def verify_config
  if !@config.has_key? 'sqs'
    raise Huck::Error, 'missing sqs config'
  end
  ['access_key_id', 'secret_access_key', 'region',
   'queue_name'].each do |key|
    if !@config['sqs'].has_key? key
      raise Huck::Error, "missing sqs config: #{key}"
    end
  end
end