/*
* 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 org.apache.cocoon.portal.profile.impl;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.apache.cocoon.portal.coplet.CopletData;
import org.apache.cocoon.portal.util.DeltaApplicableReferencesAdjustable;
/**
* Holds instances of CopletData.
*
* @author <a href="mailto:bluetkemeier@s-und-n.de">Björn Lütkemeier</a>
*
* @version CVS $Id: CopletDataManager.java 433543 2006-08-22 06:22:54Z crossley $
*/
public class CopletDataManager
implements DeltaApplicableReferencesAdjustable {
/**
* The coplet data instances.
*/
private Map copletData = new HashMap();
/**
* Signals whether a delta has been applied.
*/
private boolean deltaApplied = false;
/**
* Gets all coplet data.
*/
public Map getCopletData() {
return this.copletData;
}
/**
* Gets the specified coplet data.
*/
public CopletData getCopletData(String name) {
return (CopletData)this.copletData.get(name);
}
/**
* Puts the specified coplet data to the manager.
*/
public void putCopletData(CopletData data) {
this.copletData.put(data.getId(), data);
}
/**
* Applies the specified delta.
* @throws ClassCastException If the object is not of the expected type.
*/
public boolean applyDelta(Object object) {
CopletDataManager manager = (CopletDataManager)object;
this.deltaApplied = true;
Iterator iterator = manager.getCopletData().values().iterator();
CopletData data, delta;
while (iterator.hasNext()) {
delta = (CopletData)iterator.next();
data = this.getCopletData(delta.getId());
if (data == null) {
this.putCopletData(delta);
} else {
data.applyDelta(delta);
}
}
return true;
}
/**
* Checks if a delta has been applied.
*/
public boolean deltaApplied() {
return this.deltaApplied;
}
/**
* Updates the references to contained DeltaApplicable objects
* if no delta has been applied to them.
* @throws ClassCastException If the object is not of the expected type.
*/
public void adjustReferences(Object object) {
CopletDataManager manager = (CopletDataManager)object;
Iterator iterator = this.copletData.values().iterator();
CopletData data, other;
while (iterator.hasNext()) {
data = (CopletData)iterator.next();
if (!data.deltaApplied()) {
other = manager.getCopletData(data.getId());
if (other != null) {
this.putCopletData(other);
}
}
}
}
}