Class: LogStash::Inputs::Log4j

Inherits:
Base show all
Defined in:
lib/logstash/inputs/log4j.rb

Overview

Read events over a TCP socket from Log4j SocketAppender.

Can either accept connections from clients or connect to a server, depending on ‘mode`. Depending on mode, you need a matching SocketAppender or SocketHubAppender on the remote side

Constant Summary

Constants included from Config::Mixin

Config::Mixin::CONFIGSORT

Instance Attribute Summary

Attributes inherited from Base

#params, #threadable

Attributes included from Config::Mixin

#config, #original_params

Attributes inherited from Plugin

#logger, #params

Instance Method Summary collapse

Methods inherited from Base

#tag

Methods included from Config::Mixin

#config_init, included

Methods inherited from Plugin

#eql?, #finished, #finished?, #hash, #inspect, lookup, #reload, #running?, #shutdown, #teardown, #terminating?, #to_s

Constructor Details

#initialize(*args) ⇒ Log4j

Returns a new instance of Log4j.



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# File 'lib/logstash/inputs/log4j.rb', line 35

def initialize(*args)
  super(*args)
end

Instance Method Details

#register ⇒ Object 



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# File 'lib/logstash/inputs/log4j.rb', line 40

def register
  require "java"
  require "jruby/serialization"

  if __FILE__ !~ /^(jar:)?file:\/\//
    if File.exists?("vendor/jar/elasticsearch-0.90.3/lib/log4j-1.2.17.jar")
      require "vendor/jar/elasticsearch-0.90.3/lib/log4j-1.2.17.jar"
    end
  end

  if server?
    @logger.info("Starting Log4j input listener", :address => "#{@host}:#{@port}")
    @server_socket = TCPServer.new(@host, @port)
  end
  @logger.info("Log4j input")
end

#run(output_queue) ⇒ Object 



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# File 'lib/logstash/inputs/log4j.rb', line 113

def run(output_queue)
  if server?
    loop do
      # Start a new thread for each connection.
      Thread.start(@server_socket.accept) do |s|
        # TODO(sissel): put this block in its own method.

        # monkeypatch a 'peer' method onto the socket.
        s.instance_eval { class << self; include ::LogStash::Util::SocketPeer end }
        @logger.debug("Accepted connection", :client => s.peer,
                      :server => "#{@host}:#{@port}")
        handle_socket(s, output_queue)
      end # Thread.start
    end # loop
  else
    loop do
      client_socket = TCPSocket.new(@host, @port)
      client_socket.instance_eval { class << self; include ::LogStash::Util::SocketPeer end }
      @logger.debug("Opened connection", :client => "#{client_socket.peer}")
      handle_socket(client_socket, output_queue)
    end # loop
  end
end