Class LogLog

java.lang.Object
org.apache.log4j.helpers.LogLog

public class LogLog extends Object
This class used to output log statements from within the log4j package.

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
Author:
Ceki Gülcü
  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static String
    Deprecated.
    Use DEBUG_KEY instead.
    static String
    Defining this value makes log4j print log4j-internal debug statements to System.out.
    protected static boolean
     
  • Constructor Summary

    Constructors
    Constructor
    Description
     
  • Method Summary

    Modifier and Type
    Method
    Description
    static void
    debug​(String msg)
    This method is used to output log4j internal debug statements.
    static void
    debug​(String msg, Throwable t)
    This method is used to output log4j internal debug statements.
    static void
    error​(String msg)
    This method is used to output log4j internal error statements.
    static void
    error​(String msg, Throwable t)
    This method is used to output log4j internal error statements.
    static void
    setInternalDebugging​(boolean enabled)
    Allows to enable/disable log4j internal logging.
    static void
    setQuietMode​(boolean quietMode)
    In quite mode no LogLog generates strictly no output, not even for errors.
    static void
    warn​(String msg)
    This method is used to output log4j internal warning statements.
    static void
    warn​(String msg, Throwable t)
    This method is used to output log4j internal warnings.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Field Details

    • DEBUG_KEY

      public static final String DEBUG_KEY
      Defining this value 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

      public static final String CONFIG_DEBUG_KEY
      Deprecated.
      Use DEBUG_KEY instead.
      Defining this value 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
  • Constructor Details

  • Method Details

    • setInternalDebugging

      public static void setInternalDebugging(boolean enabled)
      Allows to enable/disable log4j internal logging.
    • debug

      public static void debug(String msg)
      This method is used to output log4j internal debug statements. Output goes to System.out.
    • debug

      public static void debug(String msg, Throwable t)
      This method is used to output log4j internal debug statements. Output goes to System.out.
    • error

      public static void error(String msg)
      This method is used to output log4j internal error statements. There is no way to disable error statements. Output goes to System.err.
    • error

      public static void error(String msg, Throwable t)
      This method is used to output log4j internal error statements. There is no way to disable error statements. Output goes to System.err.
    • 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(String msg)
      This method is used to output log4j internal warning statements. There is no way to disable warning statements. Output goes to System.err.
    • warn

      public static void warn(String msg, Throwable t)
      This method is used to output log4j internal warnings. There is no way to disable warning statements. Output goes to System.err.