Class: Fluent::ScribeInput

Inherits:
Input
  • Object
show all
Defined in:
lib/fluent/plugin/in_scribe.rb

Defined Under Namespace

Classes: FluentScribeHandler

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ScribeInput

Returns a new instance of ScribeInput.



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# File 'lib/fluent/plugin/in_scribe.rb', line 31

def initialize
  require 'cgi'
  require 'thrift'
  $:.unshift File.join(File.dirname(__FILE__), 'thrift')
  require 'fb303_types'
  require 'fb303_constants'
  require 'facebook_service'
  require 'scribe_types'
  require 'scribe_constants'
  require 'scribe'
  super
end

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/in_scribe.rb', line 44

def configure(conf)
  super
end

#run ⇒ Object 



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# File 'lib/fluent/plugin/in_scribe.rb', line 101

def run
  @server.serve
rescue
  $log.error "unexpected error", :error=>$!.to_s
  $log.error_backtrace
end

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/in_scribe.rb', line 96

def shutdown
  @transport.close unless @transport.closed?
  #@thread.join # TODO
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/in_scribe.rb', line 48

def start
  $log.debug "listening scribe on #{@bind}:#{@port}"

  handler = FluentScribeHandler.new
  handler.add_prefix = @add_prefix
  handler.remove_newline = @remove_newline
  handler.msg_format = @msg_format
  processor = Scribe::Processor.new handler

  @transport = Thrift::ServerSocket.new @bind, @port
  if @is_framed
    transport_factory = Thrift::FramedTransportFactory.new
  else
    transport_factory = Thrift::BufferedTransportFactory.new
  end

  unless ['text', 'json', 'url_param'].include? @msg_format
    raise 'Unknown format: msg_format=#{@msg_format}'
  end

  # 2011/09/29 Kazuki Ohta <[email protected]>
  # This section is a workaround to set strict_read and strict_write option.
  # Ruby-Thrift 0.7 set them both 'true' in default, but Scribe protocol set
  # them both 'false'.
  protocol_factory = Thrift::BinaryProtocolFactory.new
  protocol_factory.instance_eval {|obj|
    def get_protocol(trans) # override
      return Thrift::BinaryProtocol.new(trans,
        strict_read=false,
        strict_write=false)
    end
  }

  case @server_type
  when 'simple'
    @server = Thrift::SimpleServer.new processor, @transport, transport_factory, protocol_factory
  when 'threaded'
    @server = Thrift::ThreadedServer.new processor, @transport, transport_factory, protocol_factory
  when 'thread_pool'
    @server = Thrift::ThreadPoolServer.new processor, @transport, transport_factory, protocol_factory
  when 'nonblocking'
    @server = Thrift::NonblockingServer.new processor, @transport, transport_factory, protocol_factory
  else
    raise ConfigError, "in_scribe: unsupported server_type '#{@server_type}'"
  end
  @thread = Thread.new(&method(:run))
end