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 12

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

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_dd.rb', line 26

def configure(conf)
  super

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

  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 41

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 22

def shutdown
  super
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/out_dd.rb', line 18

def start
  super
end

#write(chunk) ⇒ Object 



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# File 'lib/fluent/plugin/out_dd.rb', line 45

def write(chunk)
  enum = chunk.to_enum(:msgpack_each)

  enum.select {|tag, time, record|
    unless record['metric']
      log.warn("`metric` key does not exist: #{[tag, time, record].inspect}")
    end

    record['metric']
  }.chunk {|tag, time, record|
    dd_tag = record['tag']

    if not dd_tag and @use_fluentd_tag_for_datadog_tag
      dd_tag = tag
    end

    [dd_tag] + record.values_at('metric', 'host', 'type')
  }.each {|i, records|
    tag, metric, host, type = i

    points = records.map do |tag, time, record|
      time = Time.at(time)
      value = record['value']
      [time, value]
    end

    options = {}
    options[:tags] = tag.split(',').map {|i| i.strip } if tag
    options[:host] = host if host
    options[:type] = type if type

    @dog.emit_points(metric, points, options)
  }
end