/**
* Copyright 2004-2016 Riccardo Solmi. All rights reserved.
* This file is part of the Whole Platform.
*
* The Whole Platform is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Whole Platform is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whole.lang.events;
import java.io.IOException;
import java.util.Date;
import org.whole.lang.model.EnumValue;
import org.whole.lang.model.IEntity;
import org.whole.lang.reflect.FeatureDescriptor;
/**
* @author Riccardo Solmi
*/
public class CompositeChangeEventHandler implements IChangeEventHandler {
private static final long serialVersionUID = 1L;
transient private IChangeEventHandler[] handlers = new IChangeEventHandler[0];
private void readObject(java.io.ObjectInputStream in) throws IOException, ClassNotFoundException {
in.defaultReadObject();
handlers = new IChangeEventHandler[0];
}
public CompositeChangeEventHandler() {
handlers = new IChangeEventHandler[0];
}
public CompositeChangeEventHandler(IChangeEventHandler... eventHandlers) {
handlers = eventHandlers;
}
public boolean hasSharingEventHandler() {
for (int i=0; i<handlers.length; i++)
if (handlers[i].hasSharingEventHandler())
return true;
return false;
}
public SharingChangeEventHandler getSharingEventHandler(IEntity entity) {
if (handlers[0].hasSharingEventHandler())
return (SharingChangeEventHandler) handlers[0];
SharingChangeEventHandler handler;
for (int i=1; i<handlers.length; i++)
if (handlers[i].hasSharingEventHandler()) {
handler = (SharingChangeEventHandler) handlers[i];
handlers[i] = handlers[0];
handlers[0] = handler;
return handler;
}
IChangeEventHandler[] result = new IChangeEventHandler[handlers.length+1];
result[0] = handler = new SharingChangeEventHandler(entity);
for (int i=0; i<handlers.length; i++)
result[i+1] = handlers[i];
handlers = result;
return handler;
}
public void setChangeEventHandler(int index, IChangeEventHandler eventHandler) {
handlers[index] = eventHandler;
}
public IChangeEventHandler cloneChangeEventHandler(IChangeEventHandler parentEventHandler) {
for (int i=0; i<handlers.length; i++)
parentEventHandler = parentEventHandler.addChangeEventHandler(
handlers[i].cloneChangeEventHandler(IdentityChangeEventHandler.instance));
return parentEventHandler;
}
public IChangeEventHandler addChangeEventHandler(IChangeEventHandler eventHandler) {
if (handlers == null)
handlers = new IChangeEventHandler[0]; //FIXME hotfix for standard serialization
for (int i=0; i<handlers.length; i++)
if (handlers[i] == eventHandler)
return this;
IChangeEventHandler[] result = new IChangeEventHandler[handlers.length+1];
for (int i=0; i<handlers.length; i++)
result[i] = handlers[i];
result[handlers.length] = eventHandler;
handlers = result;
return this;
}
public IChangeEventHandler removeChangeEventHandler(IChangeEventHandler eventHandler) {
for (int i=0; i<handlers.length; i++) {
if (handlers[i] == eventHandler) {
IChangeEventHandler[] result = new IChangeEventHandler[handlers.length-1];
for (int j=0; j<i; j++)
result[j] = handlers[j];
for (int j=i; j<handlers.length-1; j++)
result[j] = handlers[j+1];
handlers = result;
return this;
}
}
for (int i=0; i<handlers.length; i++)
handlers[i] = handlers[i].removeChangeEventHandler(eventHandler);
return this;
}
public void notifyAdded(IEntity source, FeatureDescriptor fd, int index, IEntity newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyAdded(source, fd, index, newValue);
}
public void notifyRemoved(IEntity source, FeatureDescriptor fd, int index, IEntity oldValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyRemoved(source, fd, index, oldValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, int index, IEntity oldValue, IEntity newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, index, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, IEntity oldValue, IEntity newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, boolean oldValue, boolean newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, byte oldValue, byte newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, char oldValue, char newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, double oldValue, double newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, float oldValue, float newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, int oldValue, int newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, long oldValue, long newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, short oldValue, short newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, String oldValue, String newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, Date oldValue, Date newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, EnumValue oldValue, EnumValue newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
public void notifyChanged(IEntity source, FeatureDescriptor fd, Object oldValue, Object newValue) {
for (int i=0; i<handlers.length; i++)
getActualEventHandler(handlers[i], source).notifyChanged(source, fd, oldValue, newValue);
}
}