| /* |
| * 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 freemarker.ext.beans; |
| |
| import java.lang.ref.WeakReference; |
| |
| import org.zeroturnaround.javarebel.ClassEventListener; |
| import org.zeroturnaround.javarebel.ReloaderFactory; |
| |
| class JRebelClassChangeNotifier implements ClassChangeNotifier { |
| |
| static void testAvailability() { |
| ReloaderFactory.getInstance(); |
| } |
| |
| @Override |
| public void subscribe(ClassIntrospector classIntrospector) { |
| ReloaderFactory.getInstance().addClassReloadListener( |
| new ClassIntrospectorCacheInvalidator(classIntrospector)); |
| } |
| |
| private static class ClassIntrospectorCacheInvalidator |
| implements ClassEventListener { |
| private final WeakReference ref; |
| |
| ClassIntrospectorCacheInvalidator(ClassIntrospector w) { |
| ref = new WeakReference(w); |
| } |
| |
| @Override |
| public void onClassEvent(int eventType, Class pClass) { |
| ClassIntrospector ci = (ClassIntrospector) ref.get(); |
| if (ci == null) { |
| ReloaderFactory.getInstance().removeClassReloadListener(this); |
| } else if (eventType == ClassEventListener.EVENT_RELOADED) { |
| ci.remove(pClass); |
| } |
| } |
| } |
| |
| } |