//
   //  ========================================================================
   //  Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
   //  ------------------------------------------------------------------------
   //  All rights reserved. This program and the accompanying materials
   //  are made available under the terms of the Eclipse Public License v1.0
   //  and Apache License v2.0 which accompanies this distribution.
   //
   //      The Eclipse Public License is available at
  //      http://www.eclipse.org/legal/epl-v10.html
  //
  //      The Apache License v2.0 is available at
  //      http://www.opensource.org/licenses/apache2.0.php
  //
  //  You may elect to redistribute this code under either of these licenses.
  //  ========================================================================
  //
  
  package org.eclipse.jetty.util.log;
  
  import java.lang.reflect.Method;
  
  /**
   *
   */
  public class LoggerLog extends AbstractLogger
  {
      private final Object _logger;
      private final Method _debugMT;
      private final Method _debugMAA;
      private final Method _infoMT;
      private final Method _infoMAA;
      private final Method _warnMT;
      private final Method _warnMAA;
      private final Method _setDebugEnabledE;
      private final Method _getLoggerN;
      private final Method _getName;
      private volatile boolean _debug;
  
      public LoggerLog(Object logger)
      {
          try
          {
              _logger = logger;
              Class<?> lc = logger.getClass();
              _debugMT = lc.getMethod("debug", new Class[]{String.class, Throwable.class});
              _debugMAA = lc.getMethod("debug", new Class[]{String.class, Object[].class});
              _infoMT = lc.getMethod("info", new Class[]{String.class, Throwable.class});
              _infoMAA = lc.getMethod("info", new Class[]{String.class, Object[].class});
              _warnMT = lc.getMethod("warn", new Class[]{String.class, Throwable.class});
              _warnMAA = lc.getMethod("warn", new Class[]{String.class, Object[].class});
              Method _isDebugEnabled = lc.getMethod("isDebugEnabled");
              _setDebugEnabledE = lc.getMethod("setDebugEnabled", new Class[]{Boolean.TYPE});
              _getLoggerN = lc.getMethod("getLogger", new Class[]{String.class});
              _getName = lc.getMethod("getName");
  
              _debug = (Boolean)_isDebugEnabled.invoke(_logger);
          }
          catch(Exception x)
          {
              throw new IllegalStateException(x);
          }
      }
  
      public String getName()
      {
          try
          {
              return (String)_getName.invoke(_logger);
          }
          catch (Exception e)
          {
              e.printStackTrace();
              return null;
          }
      }
  
      public void warn(String msg, Object... args)
      {
          try
          {
              _warnMAA.invoke(_logger, args);
          }
          catch (Exception e)
          {
              e.printStackTrace();
          }
      }
  
      public void warn(Throwable thrown)
      {
          warn("", thrown);
      }
  
      public void warn(String msg, Throwable thrown)
      {
          try
          {
              _warnMT.invoke(_logger, msg, thrown);
         }
         catch (Exception e)
         {
             e.printStackTrace();
         }
     }
 
     public void info(String msg, Object... args)
     {
         try
         {
             _infoMAA.invoke(_logger, args);
         }
         catch (Exception e)
         {
             e.printStackTrace();
         }
     }
 
     public void info(Throwable thrown)
     {
         info("", thrown);
     }
 
     public void info(String msg, Throwable thrown)
     {
         try
         {
             _infoMT.invoke(_logger, msg, thrown);
         }
         catch (Exception e)
         {
             e.printStackTrace();
         }
     }
 
     public boolean isDebugEnabled()
     {
         return _debug;
     }
 
     public void setDebugEnabled(boolean enabled)
     {
         try
         {
             _setDebugEnabledE.invoke(_logger, enabled);
             _debug = enabled;
         }
         catch (Exception e)
         {
             e.printStackTrace();
         }
     }
 
     public void debug(String msg, Object... args)
     {
         if (!_debug)
             return;
 
         try
         {
             _debugMAA.invoke(_logger, args);
         }
         catch (Exception e)
         {
             e.printStackTrace();
         }
     }
 
     public void debug(Throwable thrown)
     {
         debug("", thrown);
     }
 
     public void debug(String msg, Throwable th)
     {
         if (!_debug)
             return;
 
         try
         {
             _debugMT.invoke(_logger, msg, th);
         }
         catch (Exception e)
         {
             e.printStackTrace();
         }
     }
 
     public void ignore(Throwable ignored)
     {
         if (Log.isIgnored())
         {
             warn(Log.IGNORED, ignored);
         }
     }
 
     /**
      * Create a Child Logger of this Logger.
      */
     protected Logger newLogger(String fullname)
     {
         try
         {
             Object logger=_getLoggerN.invoke(_logger, fullname);
             return new LoggerLog(logger);
         }
         catch (Exception e)
         {
             e.printStackTrace();
             return this;
         }
     }
 }