/**
* 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.jbpm.bpmn2.xml;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import org.drools.definition.process.WorkflowProcess;
import org.drools.xml.BaseAbstractHandler;
import org.drools.xml.ExtensibleXmlParser;
import org.drools.xml.Handler;
import org.jbpm.bpmn2.core.Association;
import org.jbpm.bpmn2.core.Lane;
import org.jbpm.bpmn2.core.SequenceFlow;
import org.jbpm.process.core.context.variable.Variable;
import org.jbpm.ruleflow.core.RuleFlowProcess;
import org.jbpm.workflow.core.Node;
import org.w3c.dom.Element;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
public class LaneHandler extends BaseAbstractHandler implements Handler {
public static final String LANES = "BPMN.Lanes";
@SuppressWarnings("unchecked")
public LaneHandler() {
if ((this.validParents == null) && (this.validPeers == null)) {
this.validParents = new HashSet();
this.validParents.add(RuleFlowProcess.class);
this.validPeers = new HashSet();
this.validPeers.add(null);
this.validPeers.add(Lane.class);
this.validPeers.add(Variable.class);
this.validPeers.add(Node.class);
this.validPeers.add(SequenceFlow.class);
this.validPeers.add(Lane.class);
this.validPeers.add(Association.class);
this.allowNesting = false;
}
}
@SuppressWarnings("unchecked")
public Object start(final String uri, final String localName,
final Attributes attrs, final ExtensibleXmlParser parser)
throws SAXException {
parser.startElementBuilder(localName, attrs);
String id = attrs.getValue("id");
String name = attrs.getValue("name");
WorkflowProcess process = (WorkflowProcess) parser.getParent();
List<Lane> lanes = (List<Lane>)
((RuleFlowProcess) process).getMetaData(LaneHandler.LANES);
if (lanes == null) {
lanes = new ArrayList<Lane>();
((RuleFlowProcess) process).setMetaData(LaneHandler.LANES, lanes);
}
Lane lane = new Lane(id);
lane.setName(name);
lanes.add(lane);
return lane;
}
public Object end(final String uri, final String localName,
final ExtensibleXmlParser parser) throws SAXException {
final Element element = parser.endElementBuilder();
Lane lane = (Lane) parser.getCurrent();
org.w3c.dom.Node xmlNode = element.getFirstChild();
while (xmlNode != null) {
String nodeName = xmlNode.getNodeName();
if ("flowNodeRef".equals(nodeName)) {
String flowElementRef = xmlNode.getTextContent();
lane.addFlowElement(flowElementRef);
}
xmlNode = xmlNode.getNextSibling();
}
return lane;
}
public Class<?> generateNodeFor() {
return Lane.class;
}
}