/*
* 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();
}
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);
}
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);
}
}
}
}