LogFilterBase.java

/*
 * $Id$
 *
 * Copyright 2006, The jCoderZ.org Project. All rights reserved.
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 *
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 *      copyright notice, this list of conditions and the following
 *      disclaimer in the documentation and/or other materials
 *      provided with the distribution.
 *    * Neither the name of the jCoderZ.org Project nor the names of
 *      its contributors may be used to endorse or promote products
 *      derived from this software without specific prior written
 *      permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS
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package org.jcoderz.commons.logging;

import java.util.logging.Filter;
import java.util.logging.LogRecord;

import org.jcoderz.commons.Loggable;


/**
 * Base class for filters that filter on commons loggables.
 * @author Albrecht Messner
 */
public abstract class LogFilterBase
      implements Filter
{
   protected Loggable getLoggable (LogRecord record)
   {
      final Loggable result;
      if ((record.getParameters() != null)
            && record.getParameters().length > 0)
      {
         final Object param = record.getParameters()[0];

         if (param instanceof Loggable)
         {
            result = (Loggable) param;
         }
         else
         {
            result = null;
         }
      }
      else
      {
         result = null;
      }
      return result;
   }

}