/*
* Copyright 2010 JBoss Inc
*
* 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 org.drools.xml.changeset;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import org.drools.io.impl.ChangeSetImpl;
import org.drools.xml.BaseAbstractHandler;
import org.drools.xml.ExtensibleXmlParser;
import org.drools.xml.Handler;
import org.kie.ChangeSet;
import org.kie.io.Resource;
import org.w3c.dom.Element;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
public class RemoveHandler extends BaseAbstractHandler
implements
Handler {
public RemoveHandler() {
if ( (this.validParents == null) && (this.validPeers == null) ) {
this.validParents = new HashSet(1);
this.validParents.add( ChangeSet.class );
this.validPeers = new HashSet(2);
this.validPeers.add( null );
this.validPeers.add( Collection.class );
this.allowNesting = true;
}
}
public Object start(String uri,
String localName,
Attributes attrs,
ExtensibleXmlParser parser) throws SAXException {
parser.startElementBuilder( localName,
attrs );
final ChangeSet changeSet = (ChangeSet) parser.getParent();
return new ArrayList();
}
public Object end(String uri,
String localName,
ExtensibleXmlParser parser) throws SAXException {
final Element element = parser.endElementBuilder();
final ChangeSetImpl changeSet = (ChangeSetImpl) parser.getParent();
Collection<Resource> removedResources = new ArrayList<Resource>();
Collection<String> removedDefinitions = new ArrayList<String>();
for (Object object : ( Collection ) parser.getCurrent()) {
if (object instanceof DefinitionHandler.DefinitionHandlerData){
DefinitionHandler.DefinitionHandlerData data = (DefinitionHandler.DefinitionHandlerData)object;
String fullName = data.getPackageName();
if (fullName == null || fullName.equals("")){
fullName = data.getName();
}else{
fullName += "."+data.getName();
}
removedDefinitions.add(fullName);
}else if (object instanceof Resource){
removedResources.add((Resource)object);
}
}
changeSet.setResourcesRemoved( removedResources );
changeSet.setKnowledgeDefinitionsRemoved( removedDefinitions );
return ( Collection ) parser.getCurrent();
}
public Class< ? > generateNodeFor() {
return Collection.class;
}
}