001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 * 
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 * 
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package org.apache.log4j.spi;
019
020import org.apache.log4j.Level;
021import org.apache.log4j.Logger;
022import org.apache.log4j.helpers.LogLog;
023
024// Contibutors: Mathias Bogaert
025
026/**
027 * @deprecated Replaced by {@link RootLogger}.  
028 */
029final public class RootCategory extends Logger {
030
031  /**
032     The root category names itself as "root". However, the root
033     category cannot be retrieved by name.  
034  */
035  public
036  RootCategory(Level level) {
037    super("root");
038    setLevel(level);
039  }
040
041  
042  /**
043     Return the assigned level value without walking the category
044     hierarchy.
045  */
046  final
047  public 
048  Level getChainedLevel() {
049    return level;
050  }
051
052  /**
053     Setting a null value to the level of the root category may have catastrophic
054     results. We prevent this here.
055
056     @since 0.8.3 */
057  final  
058  public
059  void setLevel(Level level) {
060    if(level == null) {
061      LogLog.error("You have tried to set a null level to root.",
062                   new Throwable());
063    }
064    else {
065      this.level = level;
066    }
067  }
068
069  final  
070  public
071  void setPriority(Level level) {
072    setLevel(level);
073  }
074
075  
076}