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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

// Contributors:  Kitching Simon 
//                Nicholas Wolff

package org.apache.log4j;
import java.io.Serializable;

/**
   Defines the minimum set of levels recognized by the system, that is
   OFF, FATAL, ERROR,
   WARN, INFODEBUG and
   ALL.

   The Level class may be subclassed to define a larger
   level set.

   @author Ceki Gülcü

 */
public class Level extends Priority implements Serializable {

   /**
    * TRACE level integer value.
    * @since 1.2.12
    */
  public static final int TRACE_INT = 5000;

  /**
     The OFF has the highest possible rank and is
     intended to turn off logging.  */
  final static public Level OFF = null;

  /**
     The FATAL level designates very severe error
     events that will presumably lead the application to abort.
   */
  final static public Level FATAL = null;

  /**
     The ERROR level designates error events that
     might still allow the application to continue running.  */
  final static public Level ERROR = null;

  /**
     The WARN level designates potentially harmful situations.
  */
  final static public Level WARN  = null;

  /**
     The INFO level designates informational messages
     that highlight the progress of the application at coarse-grained
     level.  */
  final static public Level INFO  = null;

  /**
     The DEBUG Level designates fine-grained
     informational events that are most useful to debug an
     application.  */
  final static public Level DEBUG = null;

  /**
    * The TRACE Level designates finer-grained
    * informational events than the DEBUGALL has the lowest possible rank and is intended to
     turn on all logging.  */
  final static public Level ALL = null;

  /**
   *     Instantiate a Level object.
   */
  protected Level(int level, String levelStr, int syslogEquivalent)
  {
      super();
  }

  /**
     Convert the string passed as argument to a level. If the
     conversion fails, then this method returns {@link #DEBUG}. 
  */
  public
  static
  Level toLevel(String sArg) {
    return null;
  }

  /**
    Convert an integer passed as argument to a level. If the
    conversion fails, then this method returns {@link #DEBUG}.

  */
  public
  static
  Level toLevel(int val) {
    return null;
  }

  /**
    Convert an integer passed as argument to a level. If the
    conversion fails, then this method returns the specified default.
  */
  public
  static
  Level toLevel(int val, Level defaultLevel) {
    return null;
  }

  /**
     Convert the string passed as argument to a level. If the
     conversion fails, then this method returns the value of
     defaultLevel.  
  */
  public
  static
  Level toLevel(String sArg, Level defaultLevel) {                  
    return null;
    }
}