/* * 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.lf5.util;import org.apache.log4j.lf5.LogLevel;import org.apache.log4j.lf5.LogRecord;import java.io.PrintWriter;import java.io.StringWriter;/** * <p>A LogRecord to be used with the LogMonitorAdapter</p> * * @author Richard Hurst */// Contributed by ThoughtWorks Inc.public class AdapterLogRecord extends LogRecord {  //--------------------------------------------------------------------------  //   Constants:  //--------------------------------------------------------------------------  //--------------------------------------------------------------------------  //   Protected Variables:  //--------------------------------------------------------------------------  //--------------------------------------------------------------------------  //   Private Variables:  //--------------------------------------------------------------------------  private static LogLevel severeLevel = null;  private static StringWriter sw = new StringWriter();  private static PrintWriter pw = new PrintWriter(sw);  //--------------------------------------------------------------------------  //   Constructors:  //--------------------------------------------------------------------------  public AdapterLogRecord() {    super();  }  //--------------------------------------------------------------------------  //   Public Methods:  //--------------------------------------------------------------------------  public void setCategory(String category) {    super.setCategory(category);    super.setLocation(getLocationInfo(category));  }  public boolean isSevereLevel() {    if (severeLevel == null) return false;    return severeLevel.equals(getLevel());  }  public static void setSevereLevel(LogLevel level) {    severeLevel = level;  }  public static LogLevel getSevereLevel() {    return severeLevel;  }  //--------------------------------------------------------------------------  //   Protected Methods:  //--------------------------------------------------------------------------  protected String getLocationInfo(String category) {    String stackTrace = stackTraceToString(new Throwable());    String line = parseLine(stackTrace, category);    return line;  }  protected String stackTraceToString(Throwable t) {    String s = null;    synchronized (sw) {      t.printStackTrace(pw);      s = sw.toString();      sw.getBuffer().setLength(0);    }    return s;  }  protected String parseLine(String trace, String category) {    int index = trace.indexOf(category);    if (index == -1) return null;    trace = trace.substring(index);    trace = trace.substring(0, trace.indexOf(")") + 1);    return trace;  }  //--------------------------------------------------------------------------  //   Private Methods:  //--------------------------------------------------------------------------  //--------------------------------------------------------------------------  //   Nested Top-Level Classes or Interfaces  //--------------------------------------------------------------------------}