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/*******************************************************************************
* Copyright (c) 2011 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.ote.core.model;
import java.rmi.RemoteException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.logging.Level;
import org.eclipse.osee.framework.jdk.core.type.MutableInteger;
import org.eclipse.osee.framework.logging.OseeLog;
import org.eclipse.osee.ote.core.environment.TestEnvironment;
/**
* @author Michael P. Masterson
*/
public class ModelReference {
private final IModel model;
private final MutableInteger referenceCount;
private final List<IModelListener> listeners;
public ModelReference(IModel model) {
this.model = model;
this.referenceCount = new MutableInteger(1);
this.listeners = new ArrayList<IModelListener>();
}
public IModel getModel() {
return model;
}
public Integer getReferenceCount() {
return referenceCount.getValue();
}
public void incrementReferenceCount() {
referenceCount.setValue(referenceCount.getValue() + 1);
}
public void decrementReferenceCount() {
referenceCount.setValue(referenceCount.getValue() - 1);
}
public void addModelActivityListener(IModelListener listener) {
if (listener == null) {
Exception e = new NullPointerException();
OseeLog.log(TestEnvironment.class, Level.SEVERE, e.getMessage(), e);
return;
}
if (!collectionContainsListener(listener)) {
listeners.add(listener);
}
}
public void removeModelActivityListener(IModelListener listener) throws RemoteException {
Iterator<IModelListener> iter = listeners.iterator();
while (iter.hasNext()) {
if (iter.next().getHashCode() == listener.getHashCode()) {
iter.remove();
}
}
}
/**
* Can not just use equals because of remote references.
*
* @param listener
* @return
*/
private boolean collectionContainsListener(IModelListener listener) {
try {
for (IModelListener current : listeners) {
if (current.getHashCode() == listener.getHashCode()) {
return true;
}
}
}
catch (RemoteException e) {
OseeLog.log(TestEnvironment.class, Level.SEVERE, e.getMessage(), e);
}
return false;
}
public <CLASSTYPE extends IModel> void notifyModelPreCreate() throws RemoteException {
for (IModelListener listener : listeners) {
listener.onModelPreCreate(model.getKey());
}
}
public <CLASSTYPE extends IModel> void notifyModelPostCreate() throws RemoteException {
for (IModelListener listener : listeners) {
listener.onModelPostCreate(model.getKey());
}
}
public void notifyModelStateListener() throws RemoteException {
for (IModelListener listener : listeners) {
listener.onModelStateChange(model.getKey(), model.getState());
}
}
public <CLASSTYPE extends IModel> void notifyModelDispose() throws RemoteException {
for (IModelListener listener : listeners) {
listener.onModelDispose(model.getKey());
}
}
}
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