Package org.apache.avalon.framework.logger

Interface Logger

  • public interface Logger
    This is a facade for the different logging subsystems. It offers a simplified interface that follows IOC patterns and a simplified priority/level/severity abstraction.
    Version:
    $Id: Logger.java 30977 2004-07-30 03:57:54 -0500 (Fri, 30 Jul 2004) niclas $
    Author:
    Avalon Development Team

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      void debug​(java.lang.String message)
      Log a debug message.
      void debug​(java.lang.String message, java.lang.Throwable throwable)
      Log a debug message.
      void error​(java.lang.String message)
      Log a error message.
      void error​(java.lang.String message, java.lang.Throwable throwable)
      Log a error message.
      void fatalError​(java.lang.String message)
      Log a fatalError message.
      void fatalError​(java.lang.String message, java.lang.Throwable throwable)
      Log a fatalError message.
      Logger getChildLogger​(java.lang.String name)
      Create a new child logger.
      void info​(java.lang.String message)
      Log a info message.
      void info​(java.lang.String message, java.lang.Throwable throwable)
      Log a info message.
      boolean isDebugEnabled()
      Determine if messages of priority "debug" will be logged.
      boolean isErrorEnabled()
      Determine if messages of priority "error" will be logged.
      boolean isFatalErrorEnabled()
      Determine if messages of priority "fatalError" will be logged.
      boolean isInfoEnabled()
      Determine if messages of priority "info" will be logged.
      boolean isWarnEnabled()
      Determine if messages of priority "warn" will be logged.
      void warn​(java.lang.String message)
      Log a warn message.
      void warn​(java.lang.String message, java.lang.Throwable throwable)
      Log a warn message.

    • Method Detail

      • debug

        void debug​(java.lang.String message)
        Log a debug message.
        Parameters:
        message - the message

      • debug

        void debug​(java.lang.String message,
           java.lang.Throwable throwable)
        Log a debug message.
        Parameters:
        message - the message
        throwable - the throwable

      • isDebugEnabled

        boolean isDebugEnabled()
        Determine if messages of priority "debug" will be logged.
        Returns:
        true if "debug" messages will be logged

      • info

        void info​(java.lang.String message)
        Log a info message.
        Parameters:
        message - the message

      • info

        void info​(java.lang.String message,
          java.lang.Throwable throwable)
        Log a info message.
        Parameters:
        message - the message
        throwable - the throwable

      • isInfoEnabled

        boolean isInfoEnabled()
        Determine if messages of priority "info" will be logged.
        Returns:
        true if "info" messages will be logged

      • warn

        void warn​(java.lang.String message)
        Log a warn message.
        Parameters:
        message - the message

      • warn

        void warn​(java.lang.String message,
          java.lang.Throwable throwable)
        Log a warn message.
        Parameters:
        message - the message
        throwable - the throwable

      • isWarnEnabled

        boolean isWarnEnabled()
        Determine if messages of priority "warn" will be logged.
        Returns:
        true if "warn" messages will be logged

      • error

        void error​(java.lang.String message)
        Log a error message.
        Parameters:
        message - the message

      • error

        void error​(java.lang.String message,
           java.lang.Throwable throwable)
        Log a error message.
        Parameters:
        message - the message
        throwable - the throwable

      • isErrorEnabled

        boolean isErrorEnabled()
        Determine if messages of priority "error" will be logged.
        Returns:
        true if "error" messages will be logged

      • fatalError

        void fatalError​(java.lang.String message)
        Log a fatalError message.
        Parameters:
        message - the message

      • fatalError

        void fatalError​(java.lang.String message,
                java.lang.Throwable throwable)
        Log a fatalError message.
        Parameters:
        message - the message
        throwable - the throwable

      • isFatalErrorEnabled

        boolean isFatalErrorEnabled()
        Determine if messages of priority "fatalError" will be logged.
        Returns:
        true if "fatalError" messages will be logged

      • getChildLogger

        Logger getChildLogger​(java.lang.String name)
        Create a new child logger. The name of the child logger is [current-loggers-name].[passed-in-name] Throws IllegalArgumentException if name has an empty element name
        Parameters:
        name - the subname of this logger
        Returns:
        the new logger