/* * 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. */package org.apache.log4j.xml;import org.apache.log4j.Level;/**   This class introduces a new level level called TRACE. TRACE has   lower level than DEBUG. */public class XLevel extends Level {  private static final long serialVersionUID = 7288304330257085144L;  static public final int  TRACE_INT   = Level.DEBUG_INT - 1;  static public final int  LETHAL_INT  = Level.FATAL_INT + 1;  private static String TRACE_STR  = "TRACE";  private static String LETHAL_STR  = "LETHAL";  public static final XLevel TRACE = new XLevel(TRACE_INT, TRACE_STR, 7);  public static final XLevel LETHAL = new XLevel(LETHAL_INT, LETHAL_STR, 						       0);  protected  XLevel(int level, String strLevel, int syslogEquiv) {    super(level, strLevel, syslogEquiv);  }  /**     Convert the string passed as argument to a level. If the     conversion fails, then this method returns {@link #TRACE}.   */  public  static  Level toLevel(String sArg) {    return (Level) toLevel(sArg, XLevel.TRACE);  }  public  static  Level toLevel(String sArg, Level defaultValue) {    if(sArg == null) {      return defaultValue;    }    String stringVal = sArg.toUpperCase();        if(stringVal.equals(TRACE_STR)) {      return XLevel.TRACE;    } else if(stringVal.equals(LETHAL_STR)) {      return XLevel.LETHAL;    }          return Level.toLevel(sArg, (Level) defaultValue);      }  public  static  Level toLevel(int i) throws  IllegalArgumentException {    switch(i) {    case TRACE_INT: return XLevel.TRACE;    case LETHAL_INT: return XLevel.LETHAL;    }    return Level.toLevel(i);  }}