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);
    }
  }
Exemple #2
0
  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());
  }