Class: Fluent::DdOutput

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

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DdOutput

Returns a new instance of DdOutput.



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# File 'lib/fluent/plugin/out_dd.rb', line 14

def initialize
  super
  require 'dogapi'
  require 'socket'
  require 'thread'
end

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_dd.rb', line 51

def configure(conf)
  super

  unless @dd_api_key
    raise Fluent::ConfigError, '`dd_api_key` is required'
  end

  if !@emit_in_background && @concurrency
    raise Fluent::ConfigError, '`concurrency` should be used with `emit_in_background`'
  end
  @concurrency ||= 1

  unless @host
    @host = %x[hostname -f 2> /dev/null].strip
    @host = Socket.gethostname if @host.empty?
  end

  @dog = Dogapi::Client.new(@dd_api_key, nil, @host)
end

#format(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_dd.rb', line 71

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

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/out_dd.rb', line 38

def shutdown
  super

  if @emit_in_background
    @threads.size.times do
      @queue.push(false)
    end
    @threads.each do |thread|
      thread.join
    end
  end
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/out_dd.rb', line 21

def start
  super

  if @emit_in_background
    @queue = Queue.new

    @threads = @concurrency.times.map do
      Thread.start do
        while (job = @queue.pop)
          emit_points(*job)
          Thread.pass
        end
      end
    end
  end
end

#write(chunk) ⇒ Object 



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# File 'lib/fluent/plugin/out_dd.rb', line 75

def write(chunk)
  jobs = chunk_to_jobs(chunk)

  jobs.each do |job|
    if @emit_in_background
      @queue.push(job)
    else
      emit_points(*job)
    end
  end
end