Class: Harmony::Service::RpcService

Inherits:
Object
  • Object
show all
Includes:
Sneakers::Worker
Defined in:
lib/harmony/service/rpc_service.rb

Instance Method Summary collapse

Instance Method Details

#create_reply_to_connection ⇒ Object 



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# File 'lib/harmony/service/rpc_service.rb', line 44

def create_reply_to_connection
  opts = Sneakers::CONFIG
  conn = Bunny.new(opts[:amqp], vhost: opts[:vhost], heartbeat: opts[:heartbeat], logger: Sneakers.logger)
  conn.start
  conn
end

#create_reply_to_exchange ⇒ Object 



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# File 'lib/harmony/service/rpc_service.rb', line 55

def create_reply_to_exchange
  ch = reply_to_connection.create_channel
  ch.exchange(AMQ::Protocol::EMPTY_STRING, auto_delete: true)
end

#reply_to_connection ⇒ Object 



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# File 'lib/harmony/service/rpc_service.rb', line 40

def reply_to_connection
  @reply_to_connection ||= create_reply_to_connection
end

#reply_to_exchange ⇒ Object 



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# File 'lib/harmony/service/rpc_service.rb', line 51

def reply_to_exchange
  @reply_to_queue ||= create_reply_to_exchange
end

#stop ⇒ Object 



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# File 'lib/harmony/service/rpc_service.rb', line 34

def stop
  super
  # reply_to_exchange.close # not working
  reply_to_connection.close
end

#work_with_params(message, _delivery_info, metadata) ⇒ Object 



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# File 'lib/harmony/service/rpc_service.rb', line 13

def work_with_params(message, _delivery_info, metadata)
  logger.debug "Request: #{message}"
  request = Oj.load(message)
  request_class = request.class
  response_classes = request_response_mapping[request_class]
  raise "Unacceptable request class: #{request_class}" if response_classes.nil?

  result = new_handler.work_with_request(request)
  raise "Unacceptable response class: #{result.class}" unless response_classes.include?(result.class)

  send_response(result, metadata)
  ack!
rescue StandardError => error
  logger.error error.message
  logger.error error.backtrace.join("\n")

  error_response = ErrorResponse.new message: error.message, exception: error
  send_response(error_response, metadata)
  reject!
end