/*
* Copyright 2000-2007 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 com.intellij.pom.event;
import com.intellij.pom.PomModel;
import com.intellij.pom.PomModelAspect;
import java.util.*;
public class PomModelEvent extends EventObject {
private Map<PomModelAspect, PomChangeSet> myChangeSets;
public PomModelEvent(PomModel source) {
super(source);
}
public Set<PomModelAspect> getChangedAspects(){
if (myChangeSets != null) {
return myChangeSets.keySet();
} else {
return Collections.emptySet();
}
}
public void registerChangeSet(PomModelAspect aspect, PomChangeSet set) {
if (myChangeSets == null) {
myChangeSets = new HashMap<PomModelAspect, PomChangeSet>();
}
if (set != null) {
myChangeSets.put(aspect, set);
}
else {
myChangeSets.remove(aspect);
}
}
public PomChangeSet getChangeSet(PomModelAspect aspect) {
if (myChangeSets == null) return null;
return myChangeSets.get(aspect);
}
public void merge(final PomModelEvent event) {
if(event.myChangeSets == null) return;
if(myChangeSets == null){
myChangeSets = new HashMap<PomModelAspect, PomChangeSet>(event.myChangeSets);
return;
}
for (final Map.Entry<PomModelAspect, PomChangeSet> entry : event.myChangeSets.entrySet()) {
final PomModelAspect aspect = entry.getKey();
final PomChangeSet pomChangeSet = myChangeSets.get(aspect);
if (pomChangeSet != null) {
pomChangeSet.merge(entry.getValue());
}
else {
myChangeSets.put(aspect, (PomChangeSet)entry.getValue());
}
}
}
public PomModel getSource() {
return (PomModel)super.getSource();
}
}