Class: Fluent::AmqpOutput

Inherits:
BufferedOutput
  • Object
show all
Defined in:
lib/fluent/plugin/out_amqp.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ AmqpOutput

Returns a new instance of AmqpOutput.



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# File 'lib/fluent/plugin/out_amqp.rb', line 20

def initialize(*)
  super
  require "bunny"
  require "yajl"
end

Instance Method Details

#configure(conf) ⇒ Object

This method is called before starting. ‘conf’ is a Hash that includes configuration parameters. If the configuration is invalid, raise Fluent::ConfigError.

Raises:

  • (Fluent::ConfigError) 


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# File 'lib/fluent/plugin/out_amqp.rb', line 29

def configure(conf)
  super

  raise Fluent::ConfigError, "missing host infromation" unless @host
  raise Fluent::ConfigError, "missing exchange" unless @exchange

  @exchange_name = @exchange
end

#format(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_amqp.rb', line 58

def format(tag, time, record)
  [tag, time, record].to_msgpack
end

#shutdown ⇒ Object

This method is called when shutting down. Shutdown the thread and close sockets or files here.



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# File 'lib/fluent/plugin/out_amqp.rb', line 53

def shutdown
  super
  @amqp_conn && @amqp_conn.stop
end

#start ⇒ Object

This method is called when starting. Open sockets or files here.



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# File 'lib/fluent/plugin/out_amqp.rb', line 40

def start
  super

  begin
    get_or_create_exchange
  rescue => e
    $log.error "AMQP error", error: e.to_s
    $log.warn_backtrace e.backtrace
  end
end

#write(chunk) ⇒ Object

This method is called every flush interval. Write the buffer chunk to files or databases here. ‘chunk’ is a buffer chunk that includes multiple formatted events. You can use ‘data = chunk.read’ to get all events and ‘chunk.open {|io| … }’ to get IO objects.



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# File 'lib/fluent/plugin/out_amqp.rb', line 67

def write(chunk)
  chunk.msgpack_each do |(tag, time, record)|
    event = @payload_only ? record : { "key" => tag, "timestamp" => time, "payload" => record }
    puboptions = { routing_key: tag, content_type: @content_type }
    if @priority
      puboptions[:priority] = @priority
    end
    get_or_create_exchange.publish Yajl.dump(event), puboptions
  end
end