/*
* Copyright 2004-2014 SmartBear Software
*
* Licensed under the EUPL, Version 1.1 or - as soon as they will be approved by the European Commission - subsequent
* versions of the EUPL (the "Licence");
* You may not use this work except in compliance with the Licence.
* You may obtain a copy of the Licence at:
*
* http://ec.europa.eu/idabc/eupl
*
* Unless required by applicable law or agreed to in writing, software distributed under the Licence is
* distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the Licence for the specific language governing permissions and limitations
* under the Licence.
*/
package com.eviware.soapui.support;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.lang.ref.WeakReference;
import java.lang.reflect.Method;
public class WeakPropertyChangeListener implements PropertyChangeListener {
WeakReference<?> listenerRef;
Object src;
@SuppressWarnings("unchecked")
public WeakPropertyChangeListener(PropertyChangeListener listener, Object src) {
listenerRef = new WeakReference(listener);
this.src = src;
}
public void propertyChange(PropertyChangeEvent evt) {
PropertyChangeListener listener = (PropertyChangeListener) listenerRef.get();
if (listener == null) {
removeListener();
} else {
listener.propertyChange(evt);
}
}
private void removeListener() {
try {
Method method = src.getClass().getMethod("removePropertyChangeListener",
new Class[]{PropertyChangeListener.class});
method.invoke(src, new Object[]{this});
} catch (Exception e) {
e.printStackTrace();
}
}
}