/**
* 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.bpmn2.legacy.beta1;
import java.util.List;
import org.drools.bpmn2.core.SequenceFlow;
import org.drools.definition.process.Connection;
import org.drools.process.core.context.variable.VariableScope;
import org.drools.workflow.core.Node;
import org.drools.workflow.core.node.DynamicNode;
import org.drools.xml.ExtensibleXmlParser;
import org.w3c.dom.Element;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
public class AdHocSubProcessHandler extends CompositeContextNodeHandler {
protected Node createNode(Attributes attrs) {
DynamicNode result = new DynamicNode();
VariableScope variableScope = new VariableScope();
result.addContext(variableScope);
result.setDefaultContext(variableScope);
return result;
}
@SuppressWarnings("unchecked")
public Class generateNodeFor() {
return DynamicNode.class;
}
@SuppressWarnings("unchecked")
protected void handleNode(final Node node, final Element element, final String uri,
final String localName, final ExtensibleXmlParser parser) throws SAXException {
super.handleNode(node, element, uri, localName, parser);
DynamicNode dynamicNode = (DynamicNode) node;
String cancelRemainingInstances = element.getAttribute("cancelRemainingInstances");
if ("false".equals(cancelRemainingInstances)) {
dynamicNode.setCancelRemainingInstances(false);
}
org.w3c.dom.Node xmlNode = element.getFirstChild();
while (xmlNode != null) {
String nodeName = xmlNode.getNodeName();
if ("completionCondition".equals(nodeName)) {
String expression = xmlNode.getTextContent();
if ("getActivityInstanceAttribute(\"numberOfActiveInstances\") == 0".equals(expression)) {
dynamicNode.setAutoComplete(true);
}
}
xmlNode = xmlNode.getNextSibling();
}
List<SequenceFlow> connections = (List<SequenceFlow>)
dynamicNode.getMetaData(ProcessHandler.CONNECTIONS);
ProcessHandler.linkConnections(dynamicNode, connections);
ProcessHandler.linkBoundaryEvents(dynamicNode);
}
public void writeNode(Node node, StringBuilder xmlDump, boolean includeMeta) {
DynamicNode dynamicNode = (DynamicNode) node;
writeNode("adHocSubProcess", dynamicNode, xmlDump, includeMeta);
if (!dynamicNode.isCancelRemainingInstances()) {
xmlDump.append(" cancelRemainingInstances=\"false\"");
}
xmlDump.append(" ordering=\"parallel\" >" + EOL);
// nodes
List<Node> subNodes = getSubNodes(dynamicNode);
xmlDump.append(" <!-- nodes -->" + EOL);
for (Node subNode: subNodes) {
XmlBPMNProcessDumper.INSTANCE.visitNode(subNode, xmlDump, includeMeta);
}
// connections
List<Connection> connections = getSubConnections(dynamicNode);
xmlDump.append(" <!-- connections -->" + EOL);
for (Connection connection: connections) {
XmlBPMNProcessDumper.INSTANCE.visitConnection(connection, xmlDump, includeMeta);
}
if (dynamicNode.isAutoComplete()) {
xmlDump.append(" <completionCondition xs:type=\"tFormalExpression\">getActivityInstanceAttribute(\"numberOfActiveInstances\") == 0</completionCondition>" + EOL);
}
endNode("adHocSubProcess", xmlDump);
}
}