org.gatein.common.logging.SLF4JLocationAwareLogger Maven / Gradle / Ivy

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/**
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This 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 software 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 software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */
package org.gatein.common.logging;

import org.slf4j.spi.LocationAwareLogger;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.UndeclaredThrowableException;

/**
 * @author Julien Viet
 * @version $Revision$
 */
class SLF4JLocationAwareLogger extends Logger
{

  /** . */
   private static final String FQCN = SLF4JLocationAwareLogger.class.getName();

   /** . */
   private final LocationAwareLogger delegate;

   public SLF4JLocationAwareLogger(LocationAwareLogger delegate)
   {
      this.delegate = delegate;
   }

   @Override
   protected void doLog(LogLevel level, Object msg, Object[] argArray, Throwable throwable)
   {
      try
      {
         switch (LOGGER)
         {
            case SLF_1_5:
               // 1.5 : log(Marker marker, String fqcn, int level, String message, Throwable t);
               log.invoke(delegate, null, FQCN, level.getSLF4Jlevel(), String.valueOf(msg), throwable);
               break;
            case SLF_1_6:
               // 1.6 : log(Marker marker, String fqcn, int level, String message, Object[] argArray, Throwable t);
               log.invoke(delegate, null, FQCN, level.getSLF4Jlevel(), String.valueOf(msg), argArray, throwable);
               break;
         }
      }
      catch (IllegalAccessException e)
      {
         AssertionError ae = new AssertionError("Unexpected issue when using SLF4J location aware logger");
         ae.initCause(e);
         throw ae;
      }
      catch (InvocationTargetException e)
      {
         Throwable cause = e.getCause();
         if (cause instanceof RuntimeException)
         {
            throw (RuntimeException)cause;
         }
         else if (cause instanceof Error)
         {
            throw (Error)cause;
         }
         else
         {
            throw new UndeclaredThrowableException(cause);
         }
      }
   }

   @Override
   protected org.slf4j.Logger getDelegate()
   {
      return delegate;
   }
}