Class: LogStash::Logger

Inherits:
Object
  • Object
show all
Defined in:
lib/logstash/logging.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) ⇒ Logger

Returns a new instance of Logger.



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# File 'lib/logstash/logging.rb', line 10

def initialize(*args)
  super()

  #self[:program] = File.basename($0)
  #subscribe(::Logger.new(*args))
  @target = args[0]
  @channel = Cabin::Channel.get(LogStash)

  # lame hack until cabin's smart enough not to doubley-subscribe something.
  # without this subscription count check, running the test suite
  # causes Cabin to subscribe to STDOUT maaaaaany times.
  subscriptions = @channel.instance_eval { @subscribers.count }
  @channel.subscribe(@target) unless subscriptions > 0

  # Set default loglevel to WARN unless $DEBUG is set (run with 'ruby -d')
  @level = $DEBUG ? :debug : :warn
  if ENV["LOGSTASH_DEBUG"]
    @level = :debug
  end

  # Direct metrics elsewhere.
  @channel.metrics.channel = Cabin::Channel.new
end

Instance Attribute Details

#target ⇒ Object

Returns the value of attribute target.



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# File 'lib/logstash/logging.rb', line 7

def target
  @target
end

Class Method Details

.setup_log4j(logger) ⇒ Object 



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# File 'lib/logstash/logging.rb', line 47

def self.setup_log4j(logger)
  require "java"

  properties = java.util.Properties.new
  log4j_level = "WARN"
  case logger.level
    when :debug
      log4j_level = "DEBUG"
    when :info
      log4j_level = "INFO"
    when :warn
      log4j_level = "WARN"
  end # case level
  properties.setProperty("log4j.rootLogger", "#{log4j_level},logstash")

  # TODO(sissel): This is a shitty hack to work around the fact that
  # LogStash::Logger isn't used anymore. We should fix that.
  target = logger.instance_eval { @subscribers }.values.first.instance_eval { @io }
  case target
    when STDOUT
      properties.setProperty("log4j.appender.logstash",
                    "org.apache.log4j.ConsoleAppender")
      properties.setProperty("log4j.appender.logstash.Target", "System.out")
    when STDERR
      properties.setProperty("log4j.appender.logstash",
                    "org.apache.log4j.ConsoleAppender")
      properties.setProperty("log4j.appender.logstash.Target", "System.err")
    when target.is_a?(File)
      properties.setProperty("log4j.appender.logstash",
                    "org.apache.log4j.FileAppender")
      properties.setProperty("log4j.appender.logstash.File", target.path)
    else
      properties.setProperty("log4j.appender.logstash", "org.apache.log4j.varia.NullAppender")
  end # case target

  properties.setProperty("log4j.appender.logstash.layout",
                "org.apache.log4j.PatternLayout")
  properties.setProperty("log4j.appender.logstash.layout.conversionPattern",
                "log4j, [%d{yyyy-MM-dd}T%d{HH:mm:ss.SSS}] %5p: %c: %m%n")

  org.apache.log4j.LogManager.resetConfiguration
  org.apache.log4j.PropertyConfigurator.configure(properties)
  logger.debug("log4j java properties setup", :log4j_level => log4j_level)
end

Instance Method Details

#debug(*args) ⇒ Object 



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# File 'lib/logstash/logging.rb', line 36

def debug(*args); @channel.debug(*args); end

#debug?(*args) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/logstash/logging.rb', line 37

def debug?(*args); @channel.debug?(*args); end

#error(*args) ⇒ Object 



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# File 'lib/logstash/logging.rb', line 42

def error(*args); @channel.error(*args); end

#error?(*args) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/logstash/logging.rb', line 43

def error?(*args); @channel.error?(*args); end

#fatal(*args) ⇒ Object 



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# File 'lib/logstash/logging.rb', line 44

def fatal(*args); @channel.fatal(*args); end

#fatal?(*args) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/logstash/logging.rb', line 45

def fatal?(*args); @channel.fatal?(*args); end

#info(*args) ⇒ Object 



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# File 'lib/logstash/logging.rb', line 38

def info(*args); @channel.info(*args); end

#info?(*args) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/logstash/logging.rb', line 39

def info?(*args); @channel.info?(*args); end

#level=(value) ⇒ Object

Delegation



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# File 'lib/logstash/logging.rb', line 35

def level=(value) @channel.level = value; end

#warn(*args) ⇒ Object 



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# File 'lib/logstash/logging.rb', line 40

def warn(*args); @channel.warn(*args); end

#warn?(*args) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/logstash/logging.rb', line 41

def warn?(*args); @channel.warn?(*args); end