// Licensed to the Apache Software Foundation (ASF) under one or more contributor
// license agreements. See the NOTICE.txt 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.oodt.commons.util;
import java.beans.PropertyChangeEvent;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.oodt.commons.io.LogEvent;
import org.apache.oodt.commons.io.LogListener;
/** Multiplexer for logging events.
*
* @author Kelly
*/
public class LogEventMultiplexer implements LogListener {
/** Add an event listener.
*
* @param listener Listener to add.
*/
public void addListener(LogListener listener) {
listeners.add(listener);
}
/** Remove an event listener.
*
* @param listener Listener to remove.
*/
public void removeListener(LogListener listener) {
listeners.remove(listener);
}
public void messageLogged(LogEvent event) {
for (Iterator i = listeners.iterator(); i.hasNext();) {
LogListener listener = (LogListener) i.next();
listener.messageLogged(event);
}
}
public void streamStarted(LogEvent event) {
for (Iterator i = listeners.iterator(); i.hasNext();) {
LogListener listener = (LogListener) i.next();
listener.streamStarted(event);
}
}
public void streamStopped(LogEvent event) {
for (Iterator i = listeners.iterator(); i.hasNext();) {
LogListener listener = (LogListener) i.next();
listener.streamStopped(event);
}
}
public void propertyChange(PropertyChangeEvent event) {
for (Iterator i = listeners.iterator(); i.hasNext();) {
LogListener listener = (LogListener) i.next();
listener.propertyChange(event);
}
}
/** List of listeners to which I multiplex events. */
private List listeners = new ArrayList();
}