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.

Constant Summary collapse

READ_SIZE = 
16384

Instance Method Summary collapse

Instance Method Details

#register ⇒ Object 



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# File 'lib/logstash/inputs/stdin.rb', line 19

def register
  begin
    @stdin = StdinChannel::Reader.new
    self.class.module_exec { alias_method :stdin_read, :channel_read }
    self.class.module_exec { alias_method :stop, :channel_stop}
  rescue => e
    @logger.debug("fallback to reading from regular $stdin", :exception => e)
    self.class.module_exec { alias_method :stdin_read, :default_read }
    self.class.module_exec { alias_method :stop, :default_stop }
  end

  @host = Socket.gethostname
  fix_streaming_codecs
end

#run(queue) ⇒ Object 



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# File 'lib/logstash/inputs/stdin.rb', line 34

def run(queue)
  while !stop?
    if data = stdin_read
      @codec.decode(data) do |event|
        decorate(event)
        event.set("host", @host) if !event.include?("host")
        queue << event
      end
    end
  end
end