org.apache.log4j.or.ThreadGroupRenderer Maven / Gradle / Ivy
/*
* 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.or;
import org.apache.log4j.Layout;
/**
*/
public class ThreadGroupRenderer implements ObjectRenderer {
@Override
public
String doRender(Object obj) {
if(obj instanceof ThreadGroup) {
StringBuilder sb = new StringBuilder();
ThreadGroup threadGroup = (ThreadGroup) obj;
sb.append("java.lang.ThreadGroup[name=");
sb.append(threadGroup.getName());
sb.append(", maxpri=");
sb.append(threadGroup.getMaxPriority());
sb.append("]");
Thread[] threads = new Thread[threadGroup.activeCount()];
threadGroup.enumerate(threads);
for (Thread thread : threads) {
sb.append(Layout.LINE_SEP);
sb.append(" Thread=[");
sb.append(thread.getName());
sb.append(",");
sb.append(thread.getPriority());
sb.append(",");
sb.append(thread.isDaemon());
sb.append("]");
}
return sb.toString();
}
try {
// this is the best we can do
return obj.toString();
} catch(Exception ex) {
return ex.toString();
}
}
}