protected void handleLinkNode(
Element element, Node node, org.w3c.dom.Node xmlLinkNode, ExtensibleXmlParser parser) {
NodeContainer nodeContainer = (NodeContainer) parser.getParent();
node.setName(element.getAttribute("name"));
NamedNodeMap linkAttr = xmlLinkNode.getAttributes();
String name = linkAttr.getNamedItem("name").getNodeValue();
String id = element.getAttribute("id");
node.setMetaData("UniqueId", id);
node.setMetaData(LINK_NAME, name);
org.w3c.dom.Node xmlNode = xmlLinkNode.getFirstChild();
IntermediateLink aLink = new IntermediateLink();
aLink.setName(name);
aLink.setUniqueId(id);
while (null != xmlNode) {
String nodeName = xmlNode.getNodeName();
if ("target".equals(nodeName)) {
String target = xmlNode.getTextContent();
node.setMetaData("target", target);
aLink.setTarget(target);
}
if ("source".equals(nodeName)) {
String source = xmlNode.getTextContent();
node.setMetaData("source", source);
aLink.addSource(source);
}
xmlNode = xmlNode.getNextSibling();
}
if (nodeContainer instanceof RuleFlowProcess) {
RuleFlowProcess process = (RuleFlowProcess) nodeContainer;
List<IntermediateLink> links =
(List<IntermediateLink>) process.getMetaData().get(ProcessHandler.LINKS);
if (null == links) {
links = new ArrayList<IntermediateLink>();
}
links.add(aLink);
process.setMetaData(ProcessHandler.LINKS, links);
} else if (nodeContainer instanceof CompositeNode) {
CompositeNode subprocess = (CompositeNode) nodeContainer;
List<IntermediateLink> links =
(List<IntermediateLink>) subprocess.getMetaData().get(ProcessHandler.LINKS);
if (null == links) {
links = new ArrayList<IntermediateLink>();
}
links.add(aLink);
subprocess.setMetaData(ProcessHandler.LINKS, links);
}
}
public void testEvent5() {
RuleFlowProcess process = new RuleFlowProcess();
process.setId("org.drools.process.event");
process.setName("Event Process");
List<Variable> variables = new ArrayList<Variable>();
Variable variable = new Variable();
variable.setName("event");
ObjectDataType personDataType = new ObjectDataType();
personDataType.setClassName("org.drools.Person");
variable.setType(personDataType);
variables.add(variable);
process.getVariableScope().setVariables(variables);
StartNode startNode = new StartNode();
startNode.setName("Start");
startNode.setId(1);
process.addNode(startNode);
CompositeNode compositeNode = new CompositeNode();
compositeNode.setName("CompositeNode");
compositeNode.setId(2);
process.addNode(compositeNode);
new ConnectionImpl(
startNode, Node.CONNECTION_DEFAULT_TYPE,
compositeNode, Node.CONNECTION_DEFAULT_TYPE);
MilestoneNode milestoneNode = new MilestoneNode();
milestoneNode.setName("Milestone");
milestoneNode.setConstraint("eval(false)");
compositeNode.addNode(milestoneNode);
compositeNode.linkIncomingConnections(
Node.CONNECTION_DEFAULT_TYPE, milestoneNode.getId(), Node.CONNECTION_DEFAULT_TYPE);
EventNode eventNode = new EventNode();
EventTypeFilter eventFilter = new EventTypeFilter();
eventFilter.setType("myEvent");
eventNode.addEventFilter(eventFilter);
eventNode.setVariableName("event");
compositeNode.addNode(eventNode);
final List<String> myList = new ArrayList<String>();
ActionNode actionNode = new ActionNode();
actionNode.setName("Print");
DroolsAction action = new DroolsConsequenceAction("java", null);
action.setMetaData(
"Action",
new Action() {
public void execute(ProcessContext context) throws Exception {
System.out.println(
"Detected event for person " + ((Person) context.getVariable("event")).getName());
myList.add("Executed action");
}
});
actionNode.setAction(action);
compositeNode.addNode(actionNode);
new ConnectionImpl(
eventNode, Node.CONNECTION_DEFAULT_TYPE,
actionNode, Node.CONNECTION_DEFAULT_TYPE);
Join join = new Join();
join.setName("XOR Join");
join.setType(Join.TYPE_XOR);
compositeNode.addNode(join);
new ConnectionImpl(
milestoneNode, Node.CONNECTION_DEFAULT_TYPE,
join, Node.CONNECTION_DEFAULT_TYPE);
new ConnectionImpl(
actionNode, Node.CONNECTION_DEFAULT_TYPE,
join, Node.CONNECTION_DEFAULT_TYPE);
compositeNode.linkOutgoingConnections(
join.getId(), Node.CONNECTION_DEFAULT_TYPE, Node.CONNECTION_DEFAULT_TYPE);
EndNode endNode = new EndNode();
endNode.setName("EndNode");
endNode.setId(3);
process.addNode(endNode);
new ConnectionImpl(
compositeNode, Node.CONNECTION_DEFAULT_TYPE,
endNode, Node.CONNECTION_DEFAULT_TYPE);
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
((AbstractRuleBase) ((InternalKnowledgeBase) kbase).getRuleBase()).addProcess(process);
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ProcessInstance processInstance = ksession.startProcess("org.drools.process.event");
assertEquals(0, myList.size());
Person jack = new Person();
jack.setName("Jack");
processInstance.signalEvent("myEvent", jack);
assertEquals(1, myList.size());
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
}
