/*
* Copyright 2003-2011 JetBrains s.r.o.
*
* Licensed 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 jetbrains.mps.cleanup;
import jetbrains.mps.classloading.MPSClassesListener;
import jetbrains.mps.classloading.MPSClassesListenerAdapter;
import jetbrains.mps.components.CoreComponent;
import jetbrains.mps.classloading.ClassLoaderManager;
import jetbrains.mps.module.ReloadableModuleBase;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
/**
* FIXME what the hell is that? Any contract? Project/global? read/write access to model? What to clear?
*/
@Deprecated
public class CleanupManager implements CoreComponent {
private static CleanupManager INSTANCE;
private ClassLoaderManager myManager;
private MPSClassesListener myClassesListener;
private final Object myLock = new Object();
private List<CleanupListener> myCleanupListeners = new ArrayList<CleanupListener>();
public static CleanupManager getInstance() {
return INSTANCE;
}
@Override
public void init() {
if (INSTANCE != null) {
throw new IllegalStateException("CleanupManager is already initialized");
}
myClassesListener = new MPSClassesListenerAdapter() {
@Override
public void beforeClassesUnloaded(Set<? extends ReloadableModuleBase> modules) {
cleanup();
}
};
INSTANCE = this;
myManager.addClassesHandler(myClassesListener);
}
@Override
public void dispose() {
myManager.removeClassesHandler(myClassesListener);
INSTANCE = null;
}
public CleanupManager(ClassLoaderManager manager) {
myManager = manager;
}
public void addCleanupListener(CleanupListener l) {
synchronized (myLock) {
myCleanupListeners.add(l);
}
}
public void removeCleanupListener(CleanupListener l) {
synchronized (myLock) {
myCleanupListeners.remove(l);
}
}
public void cleanup() {
List<CleanupListener> listenersToInvoke = new ArrayList<CleanupListener>();
synchronized (myLock) {
listenersToInvoke.addAll(myCleanupListeners);
}
for (CleanupListener l : listenersToInvoke) {
l.performCleanup();
}
}
}