Class: LogStash::Inputs::Stdin

Inherits:
Base
  • Object
show all
Defined in:
lib/logstash/inputs/stdin.rb

Overview

Read events from standard input.

By default, each event is assumed to be one line. If you want to join lines, you’ll want to use the multiline filter.

Instance Method Summary collapse

Instance Method Details

#register ⇒ Object 



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# File 'lib/logstash/inputs/stdin.rb', line 16

def register
  @host = Socket.gethostname
  fix_streaming_codecs
end

#run(queue) ⇒ Object 



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# File 'lib/logstash/inputs/stdin.rb', line 21

def run(queue)
  while !stop?
    begin
      # Based on some testing, there is no way to interrupt an IO.sysread nor
      # IO.select call in JRuby. Bummer :(
      data = $stdin.sysread(16384)
      @codec.decode(data) do |event|
        decorate(event)
        event.set("host", @host) if !event.include?("host")
        queue << event
      end
    rescue IOError, EOFError # stdin closed
      break
    rescue => e
      # ignore any exception in the shutdown process
      break if stop?
      raise(e)
    end
  end
end

#stop ⇒ Object 



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# File 'lib/logstash/inputs/stdin.rb', line 42

def stop
  $stdin.close rescue nil
end