Class: Fluent::Plugin::RemoteSyslogOutput

Inherits:
Output
  • Object
show all
Defined in:
lib/fluent/plugin/out_remote_syslog.rb

Defined Under Namespace

Modules: SeverityMapper

Instance Method Summary collapse

Constructor Details

#initialize ⇒ RemoteSyslogOutput

Returns a new instance of RemoteSyslogOutput.



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

def initialize
  super
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/fluent/plugin/out_remote_syslog.rb', line 68

def close
  super
  @senders.each { |s| s.close if s }
  @senders.clear
end

#configure(conf) ⇒ Object 



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

def configure(conf)
  super
  if @host.nil? && @host_with_port.nil?
    raise ConfigError, "host or host_with_port is required"
  end

  @formatter = formatter_create
  unless @formatter.formatter_type == :text_per_line
    raise ConfigError, "formatter_type must be text_per_line formatter"
  end

  validate_target = "host=#{@host}/host_with_port=#{@host_with_port}/hostname=#{@hostname}/facility=#{@facility}/severity=#{@severity}/program=#{@program}"
  placeholder_validate!(:remote_syslog, validate_target)
  @senders = []
end

#format(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/out_remote_syslog.rb', line 74

def format(tag, time, record)
  r = inject_values_to_record(tag, time, record)
  @formatter.format(tag, time, r)
end

#multi_workers_ready? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fluent/plugin/out_remote_syslog.rb', line 64

def multi_workers_ready?
  true
end

#write(chunk) ⇒ Object 



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# File 'lib/fluent/plugin/out_remote_syslog.rb', line 79

def write(chunk)
  return if chunk.empty?

  host = extract_placeholders(@host, chunk.metadata)
  port = @port

  if @host_with_port
    host, port = extract_placeholders(@host_with_port, chunk.metadata).split(":")
  end

  host_with_port = "#{host}:#{port}"

  Thread.current[host_with_port] ||= create_sender(host, port)
  sender = Thread.current[host_with_port]

  facility = extract_placeholders(@facility, chunk.metadata)
  severity = extract_placeholders(@severity, chunk.metadata)
  program = extract_placeholders(@program, chunk.metadata)
  hostname = extract_placeholders(@hostname, chunk.metadata)

  severity = SeverityMapper.map(severity)

  packet_options = {facility: facility, severity: severity, program: program}
  packet_options[:hostname] = hostname unless hostname.empty?

  begin
    chunk.open do |io|
      io.each_line do |msg|
        sender.transmit(msg.chomp!, packet_options)
      end
    end
  rescue
    if Thread.current[host_with_port]
      Thread.current[host_with_port].close
      @senders.delete(Thread.current[host_with_port])
      Thread.current[host_with_port] = nil
    end
    raise
  end
end