/*
 * 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.jmeter.engine;

import java.rmi.RemoteException;
import java.util.Iterator;

import org.apache.jmeter.samplers.RemoteListenerWrapper;
import org.apache.jmeter.samplers.RemoteSampleListener;
import org.apache.jmeter.samplers.RemoteSampleListenerImpl;
import org.apache.jmeter.samplers.RemoteSampleListenerWrapper;
import org.apache.jmeter.samplers.RemoteTestListenerWrapper;
import org.apache.jmeter.samplers.Remoteable;
import org.apache.jmeter.samplers.SampleListener;
import org.apache.jmeter.testelement.TestListener;
import org.apache.jmeter.threads.ThreadGroup;
import org.apache.jorphan.collections.HashTree;
import org.apache.jorphan.collections.HashTreeTraverser;
import org.apache.jorphan.logging.LoggingManager;
import org.apache.log.Logger;

/**
 * @author mstover
 */
public class ConvertListeners implements HashTreeTraverser {
	private static final Logger log = LoggingManager.getLoggerForClass();

	/*
	 * (non-Javadoc)
	 * 
	 * @see HashTreeTraverser#addNode(Object, HashTree)
	 */
	public void addNode(Object node, HashTree subTree) {
		Iterator iter = subTree.list().iterator();
		while (iter.hasNext()) {
			Object item = iter.next();
			if (item instanceof ThreadGroup) {
				log.info("num threads = " + ((ThreadGroup) item).getNumThreads());
			}
			if (item instanceof Remoteable 
					&& (item instanceof TestListener || item instanceof SampleListener)) {
				try {
					RemoteSampleListener rtl = new RemoteSampleListenerImpl(item);
					if (item instanceof TestListener && item instanceof SampleListener) {
						RemoteListenerWrapper wrap = new RemoteListenerWrapper(rtl);
						subTree.replace(item, wrap);
					} else if (item instanceof TestListener) {
						RemoteTestListenerWrapper wrap = new RemoteTestListenerWrapper(rtl);
						subTree.replace(item, wrap);
					} else {
						RemoteSampleListenerWrapper wrap = new RemoteSampleListenerWrapper(rtl);
						subTree.replace(item, wrap);
					}
				} catch (RemoteException e) {
					log.error("", e); // $NON-NLS-1$
				}
			}
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see HashTreeTraverser#subtractNode()
	 */
	public void subtractNode() {
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see HashTreeTraverser#processPath()
	 */
	public void processPath() {
	}

}
