Class: Combi::InProcess

Inherits:
Bus
  • Object
show all
Defined in:
lib/combi/buses/in_process.rb

Constant Summary

Constants inherited from Bus

Bus::RPC_DEFAULT_TIMEOUT, Bus::RPC_MAX_POLLS

Instance Attribute Summary

Attributes inherited from Bus

#services

Instance Method Summary collapse

Methods inherited from Bus

#add_service, #enable, #initialize, #log, #post_initialize, #restart!, #start!, #stop!

Constructor Details

This class inherits a constructor from Combi::Bus

Instance Method Details

#memory_handlers ⇒ Object 



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# File 'lib/combi/buses/in_process.rb', line 40

def memory_handlers
  @memory_handlers ||= {}
end

#request(handler_name, kind, message, options = {}) ⇒ Object 



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# File 'lib/combi/buses/in_process.rb', line 6

def request(handler_name, kind, message, options = {})
  options[:timeout] ||= RPC_DEFAULT_TIMEOUT
  handler = memory_handlers[handler_name.to_s]
  return if handler.nil?
  service_instance = handler[:service_instance]
  message = JSON.parse(message.to_json)
  return unless service_instance.respond_to?(kind)
  waiter = EventMachine::DefaultDeferrable.new
  waiter.timeout(options[:timeout], RuntimeError.new(Timeout::Error))
  begin
    Timeout.timeout(options[:timeout]) do
      response = service_instance.send(kind, message)
      if response.respond_to? :succeed
        response.callback do |service_response|
          waiter.succeed service_response
        end
      else
        waiter.succeed response
      end
    end
  rescue Timeout::Error => e
    log "ERROR"
    waiter.fail RuntimeError.new(Timeout::Error)
  rescue e
    log "other ERROR"
    log e.inspect
  end
  waiter
end

#respond_to(service_instance, handler, options = {}) ⇒ Object 



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# File 'lib/combi/buses/in_process.rb', line 36

def respond_to(service_instance, handler, options = {})
  memory_handlers[handler.to_s] = {service_instance: service_instance, options: options}
end