Module: Brown::ModuleMethods

Includes:
Logger
Included in:
Brown
Defined in:
lib/brown/module_methods.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Logger

#backtrace, #logger

Instance Attribute Details

#connection ⇒ Object (readonly)

Returns the value of attribute connection.



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# File 'lib/brown/module_methods.rb', line 14

def connection
  @connection
end

#log_level ⇒ Object (readonly)

Returns the value of attribute log_level.



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# File 'lib/brown/module_methods.rb', line 14

def log_level
  @log_level
end

Instance Method Details

#compile_acls ⇒ Object 



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# File 'lib/brown/module_methods.rb', line 16

def compile_acls
end

#config ⇒ Object 



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# File 'lib/brown/module_methods.rb', line 19

def config
  Class.new.tap do |cfg|
    cfg.send(:define_method, :method_missing) do |*_args|
      Class.new.tap do |group|
        group.send(:define_method, :method_missing) do |*_args|
          ""
        end
      end.new
    end
  end.new
end

#running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/brown/module_methods.rb', line 31

def running?
  EM.reactor_running?
end

#shutdown_hook(&block) ⇒ Object 



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# File 'lib/brown/module_methods.rb', line 80

def shutdown_hook(&block)
  EM.add_shutdown_hook(&block)
end

#start(opts = {}) ⇒ Object 



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# File 'lib/brown/module_methods.rb', line 35

def start(opts={})
  @log_level = opts[:log_level] || "info"

  # Why these are not the defaults, I will never know
  EM.epoll if EM.epoll?
  EM.kqueue if EM.kqueue?

  connection_settings = {
    :on_tcp_connection_failure          => method(:tcp_connection_failure_handler),
    :on_possible_authentication_failure => method(:authentication_failure_handler)
  }

  AMQP.start(opts[:server_url], connection_settings) do |connection|
    EM.threadpool_size = 1
    @connection = connection

    connection.on_connection do
      logger.info { "Connected to: AMQP Broker: #{broker_identifier(connection)}" }
    end

    connection.on_tcp_connection_loss do |connection, settings|
      logger.info { "Reconnecting to AMQP Broker: #{broker_identifier(connection)} in 5s" }
      connection.reconnect(false, 5)
    end

    connection.after_recovery do |connection|
      logger.info { "Connection with AMQP Broker restored: #{broker_identifier(connection)}" }
    end

    connection.on_error do |connection, connection_close|
      # If the broker is gracefully shutdown we get a 320. Log a nice message.
      if connection_close.reply_code == 320
        logger.info { "AMQP Broker shutdown: #{broker_identifier(connection)}" }
      else
        logger.warn { connection_close.reply_text }
      end
    end

    # This will be the last thing run by the reactor.
    shutdown_hook { logger.debug { "Reactor Stopped" } }

    yield if block_given?
  end
end

#stop(immediately = false, &blk) ⇒ Object 



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# File 'lib/brown/module_methods.rb', line 84

def stop(immediately=false, &blk)
  shutdown_hook(&blk) if blk

  if running?
    if immediately
      EM.next_tick do
        @connection.close { EM.stop_event_loop }
      end
    else
      EM.add_timer(1) do
        @connection.close { EM.stop_event_loop }
      end
    end
  else
    logger.fatal { "Eventmachine is not running, exiting with prejudice" }
    exit!
  end
end