/*
    * This file is part of Domingo
    * an Open Source Java-API to Lotus Notes/Domino
    * hosted at http://domingo.sourceforge.net
    *
    * Copyright (c) 2003-2007 Beck et al. projects GmbH Munich, Germany (http://www.bea.de)
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
   */
  
  package de.bea.domingo.monitor;
  
  import org.apache.log4j.Logger;
  import org.apache.log4j.Priority;
  
  import de.bea.domingo.DNotesMonitor;
  
  /***
   * Adapter from Apache Log4j to the domingo monitor interface.
   *
   * <p>Use an instance of this class as argument to
   * DNotesFactory.getInstance(DNotesMonitor theMonitor).</p>
   *
   * <p>If Log4j should be used for logging, the log4j.jar file must be available
   * in the classpath. Log4h can be downloaded at
   * <a target="_blank" href="http://logging.apache.org/log4j/"></a>.</p>
   *
   * @since domingo 1.1
   */
  public final class Log4jMonitor implements DNotesMonitor {
  
      /*** Reference to the log4j log that will receive all log messages from Domingo. */
      private Logger logger;
  
      /***
       * Constructor.
       *
       * <p>Creates a monitor with a default Logj log.</p>
       */
      public Log4jMonitor() {
          this(Logger.getLogger(Log4jMonitor.class));
      }
  
      /***
       * Constructor.
       *
       * @param log a Log4j log instance
       */
      public Log4jMonitor(final Logger log) {
          logger = log;
      }
  
      /***
       * Returns the current Log4j log.
       *
       * @return current Log4j log
       */
      public Logger getLogger() {
          return logger;
      }
  
      /***
       * Sets a new Log4j log.
       *
       * @param log the new Log4j log
       */
      public void setLogger(final Logger log) {
          this.logger = log;
      }
  
      /***
       * {@inheritDoc}
       * @see de.bea.domingo.DNotesMonitor#debug(java.lang.String, java.lang.Throwable)
       */
      public void debug(final String message, final Throwable throwable) {
          logger.debug(message, throwable);
      }
  
      /***
       * {@inheritDoc}
       * @see de.bea.domingo.DNotesMonitor#debug(java.lang.String)
       */
      public void debug(final String message) {
          logger.debug(message);
      }
  
      /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#info(java.lang.String, java.lang.Throwable)
      */
     public void info(final String message, final Throwable throwable) {
         logger.info(message, throwable);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#info(java.lang.String)
      */
     public void info(final String message) {
         logger.info(message);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#warn(java.lang.String, java.lang.Throwable)
      */
     public void warn(final String message, final Throwable throwable) {
         logger.warn(message, throwable);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#warn(java.lang.String)
      */
     public void warn(final String message) {
         logger.warn(message);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#error(java.lang.String, java.lang.Throwable)
      */
     public void error(final String message, final Throwable throwable) {
         logger.error(message, throwable);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#error(java.lang.String)
      */
     public void error(final String message) {
         logger.error(message);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#fatalError(java.lang.String, java.lang.Throwable)
      */
     public void fatalError(final String message, final Throwable throwable) {
         logger.fatal(message, throwable);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#fatalError(java.lang.String)
      */
     public void fatalError(final String message) {
         logger.fatal(message);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#isDebugEnabled()
      */
     public boolean isDebugEnabled() {
         return logger.isEnabledFor(Priority.DEBUG);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#isInfoEnabled()
      */
     public boolean isInfoEnabled() {
         return logger.isEnabledFor(Priority.INFO);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#isWarnEnabled()
      */
     public boolean isWarnEnabled() {
         return logger.isEnabledFor(Priority.WARN);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#isErrorEnabled()
      */
     public boolean isErrorEnabled() {
         return logger.isEnabledFor(Priority.ERROR);
     }
 
     /***
      * {@inheritDoc}
      * @see de.bea.domingo.DNotesMonitor#isFatalErrorEnabled()
      */
     public boolean isFatalErrorEnabled() {
         return logger.isEnabledFor(Priority.FATAL);
     }
 }