Package org.apache.log4j.helpers

Class LogLog

  • public class LogLog
extends java.lang.Object
    Logs statements from within Log4j.

    Log4j components cannot make Log4j logging calls. However, it is sometimes useful for the user to learn about what Log4j is doing. You can enable Log4j internal logging by defining the log4j.configDebug variable.

    All Log4j internal debug calls go to System.out where as internal error messages are sent to System.err. All internal messages are prepended with the string "log4j: ".

    Since:
    0.8.2

    • Field Summary

      Fields 
      Modifier and Type Field Description
      static java.lang.String CONFIG_DEBUG_KEY
      Deprecated.
      Use DEBUG_KEY instead.
      static java.lang.String DEBUG_KEY
      Makes Log4j print log4j-internal debug statements to System.out.
      protected static boolean debugEnabled
      Debug enabled Enable or disable.
      private static StatusLogger LOGGER  
      private static boolean quietMode
      In quietMode not even errors generate any output.

    • Constructor Summary

      Constructors 
      Constructor Description
      LogLog()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static void debug​(java.lang.String message)
      Logs Log4j internal debug statements.
      static void debug​(java.lang.String message, java.lang.Throwable throwable)
      Logs Log4j internal debug statements.
      static void error​(java.lang.String message)
      Logs Log4j internal error statements.
      static void error​(java.lang.String message, java.lang.Throwable throwable)
      Logs Log4j internal error statements.
      static void setInternalDebugging​(boolean enabled)
      Enables and disables Log4j internal logging.
      static void setQuietMode​(boolean quietMode)
      In quite mode no LogLog generates strictly no output, not even for errors.
      static void warn​(java.lang.String message)
      Logs Log4j internal warning statements.
      static void warn​(java.lang.String message, java.lang.Throwable throwable)
      Logs Log4j internal warnings.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • DEBUG_KEY

        public static final java.lang.String DEBUG_KEY
        Makes Log4j print log4j-internal debug statements to System.out.

        The value of this string is "log4j.debug"

        Note that the search for all option names is case sensitive.

        See Also:
        Constant Field Values

      • CONFIG_DEBUG_KEY

        @Deprecated
public static final java.lang.String CONFIG_DEBUG_KEY
        Deprecated.
        Use DEBUG_KEY instead.
        Makes Log4j components print log4j-internal debug statements to System.out.

        The value of this string is "log4j.configDebug".

        Note that the search for all option names is case sensitive.

        See Also:
        Constant Field Values

      • debugEnabled

        protected static boolean debugEnabled
        Debug enabled Enable or disable.

      • quietMode

        private static boolean quietMode
        In quietMode not even errors generate any output.

    • Constructor Detail

      • LogLog

        public LogLog()

    • Method Detail

      • debug

        public static void debug​(java.lang.String message)
        Logs Log4j internal debug statements.
        Parameters:
        message - the message object to log.

      • debug

        public static void debug​(java.lang.String message,
                         java.lang.Throwable throwable)
        Logs Log4j internal debug statements.
        Parameters:
        message - the message object to log.
        throwable - the Throwable to log, including its stack trace.

      • error

        public static void error​(java.lang.String message)
        Logs Log4j internal error statements.
        Parameters:
        message - the message object to log.

      • error

        public static void error​(java.lang.String message,
                         java.lang.Throwable throwable)
        Logs Log4j internal error statements.
        Parameters:
        message - the message object to log.
        throwable - the Throwable to log, including its stack trace.

      • setInternalDebugging

        public static void setInternalDebugging​(boolean enabled)
        Enables and disables Log4j internal logging.
        Parameters:
        enabled - Enable or disable.

      • setQuietMode

        public static void setQuietMode​(boolean quietMode)
        In quite mode no LogLog generates strictly no output, not even for errors.
        Parameters:
        quietMode - A true for not

      • warn

        public static void warn​(java.lang.String message)
        Logs Log4j internal warning statements.
        Parameters:
        message - the message object to log.

      • warn

        public static void warn​(java.lang.String message,
                        java.lang.Throwable throwable)
        Logs Log4j internal warnings.
        Parameters:
        message - the message object to log.
        throwable - the Throwable to log, including its stack trace.