Class: Vx::Lib::Logger::LogstashDevice

Inherits:
Object
  • Object
show all
Defined in:
lib/vx/lib/logger/logstash_device.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ LogstashDevice

Returns a new instance of LogstashDevice.



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# File 'lib/vx/lib/logger/logstash_device.rb', line 9

def initialize
  @mutex = Mutex.new
  @queue = Queue.new
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/vx/lib/logger/logstash_device.rb', line 30

def close
  @mutex.synchronize do
    begin
      @io && @io.close
    rescue Exception => e
      warn "#{self.class} - #{e.class} - #{e.message}"
    ensure
      @io = nil
    end
  end
end

#connected? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vx/lib/logger/logstash_device.rb', line 26

def connected?
  !!@io
end

#enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vx/lib/logger/logstash_device.rb', line 22

def enabled?
  !!uri
end

#flush ⇒ Object 



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# File 'lib/vx/lib/logger/logstash_device.rb', line 49

def flush
  @mutex.synchronize do
    @io && @io.flush
  end
end

#logger_thread ⇒ Object 



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# File 'lib/vx/lib/logger/logstash_device.rb', line 61

def logger_thread
  @logger_loop ||= Thread.new do
    loop do
      m = @queue.pop
      with_connection do
        @io.write m
      end
    end
  end
end

#uri ⇒ Object 



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# File 'lib/vx/lib/logger/logstash_device.rb', line 14

def uri
  @uri ||=
    begin
      h = ENV['LOGSTASH_HOST']
      URI("logstash://#{h}") if h
    end
end

#wait ⇒ Object 



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# File 'lib/vx/lib/logger/logstash_device.rb', line 55

def wait
  while !@queue.empty?
    sleep 0.1
  end
end

#write(message) ⇒ Object 



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# File 'lib/vx/lib/logger/logstash_device.rb', line 42

def write(message)
  if enabled?
    logger_thread
    @queue.push message
  end
end