/* * Copyright 1999-2005 The Apache Software Foundation. *  * Licensed 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. */package org.apache.log4j.spi;import  org.apache.log4j.*;import  org.apache.log4j.helpers.LogLog;// Contibutors: Mathias Bogaert/** * @deprecated Replaced by {@link RootLogger}.   */final public class RootCategory extends Logger {  /**     The root category names itself as "root". However, the root     category cannot be retrieved by name.    */  public  RootCategory(Level level) {    super("root");    setLevel(level);  }    /**     Return the assigned level value without walking the category     hierarchy.  */  final  public   Level getChainedLevel() {    return level;  }  /**     Setting a null value to the level of the root category may have catastrophic     results. We prevent this here.     @since 0.8.3 */  final    public  void setLevel(Level level) {    if(level == null) {      LogLog.error("You have tried to set a null level to root.",		   new Throwable());    }    else {      this.level = level;    }  }  final    public  void setPriority(Level level) {    setLevel(level);  }  }