Package org.drools.workflow.core.node

Examples of org.drools.workflow.core.node.StateNode

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import org.xml.sax.SAXException;

public class StateNodeHandler extends AbstractNodeHandler {

    protected Node createNode() {
        return new StateNode();
    }
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    public 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);
        StateNode stateNode = (StateNode) node;
        for (String eventType: stateNode.getActionTypes()) {
          handleAction(stateNode, element, eventType);
        }
    }
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          handleAction(stateNode, element, eventType);
        }
    }
   
    public void writeNode(Node node, StringBuilder xmlDump, boolean includeMeta) {
    StateNode stateNode = (StateNode) node;
    writeNode("state", stateNode, xmlDump, includeMeta);
        xmlDump.append(">\n");
      for (String eventType: stateNode.getActionTypes()) {
          writeActions(eventType, stateNode.getActions(eventType), xmlDump);
        }
        writeTimers(stateNode.getTimers(), xmlDump);
        if (!stateNode.getConstraints().isEmpty()) {
          xmlDump.append("      <constraints>" + EOL);
          for (Map.Entry<ConnectionRef, Constraint> entry: stateNode.getConstraints().entrySet()) {
              ConnectionRef connection = entry.getKey();
              Constraint constraint = entry.getValue();
              xmlDump.append("        <constraint "
                  + "toNodeId=\"" + connection.getNodeId() + "\" ");
              String name = constraint.getName();
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  public Class generateNodeFor() {
        return StateNode.class;
    }

  public void writeNode(Node node, StringBuilder xmlDump, boolean includeMeta) {
      StateNode stateNode = (StateNode) node;
    String condition = (String) stateNode.getMetaData("Condition");
    writeNode("intermediateCatchEvent", stateNode, xmlDump, includeMeta);
    xmlDump.append(">" + EOL);
        xmlDump.append("      <conditionalEventDefinition>" + EOL);
        xmlDump.append("        <condition xs:type=\"tFormalExpression\" language=\"" + XmlBPMNProcessDumper.RULE_LANGUAGE + "\">" + XmlDumper.replaceIllegalChars(condition) + "</condition>" + EOL);
        xmlDump.append("      </conditionalEventDefinition>" + EOL);
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  }
 
    private void postProcessNodes(NodeContainer container) {
        for (Node node: container.getNodes()) {
            if (node instanceof StateNode) {
                StateNode stateNode = (StateNode) node;
                String condition = (String) stateNode.getMetaData().get("Condition");
                Constraint constraint = new ConstraintImpl();
                constraint.setConstraint(condition);
                constraint.setType("rule");
                for (org.drools.definition.process.Connection connection: stateNode.getDefaultOutgoingConnections()) {
                    stateNode.setConstraint(connection, constraint);
                }
            } else if (node instanceof NodeContainer) {
                postProcessNodes((NodeContainer) node);
            }
        }
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                node = timerNode;
                handleTimerNode(node, element, uri, localName, parser);
                break;
            } else if ("conditionalEventDefinition".equals(nodeName)) {
                // create new stateNode
                StateNode stateNode = new StateNode();
                stateNode.setId(node.getId());
                stateNode.setName(node.getName());
                stateNode.setMetaData("UniqueId", node.getMetaData().get("UniqueId"));
                node = stateNode;
                handleStateNode(node, element, uri, localName, parser);
                break;
            }
            xmlNode = xmlNode.getNextSibling();
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    }
   
    protected void handleStateNode(final Node node, final Element element, final String uri,
            final String localName, final ExtensibleXmlParser parser) throws SAXException {
        super.handleNode(node, element, uri, localName, parser);
        StateNode stateNode = (StateNode) node;
        org.w3c.dom.Node xmlNode = element.getFirstChild();
        while (xmlNode != null) {
            String nodeName = xmlNode.getNodeName();
            if ("conditionalEventDefinition".equals(nodeName)) {
                org.w3c.dom.Node subNode = xmlNode.getFirstChild();
                while (subNode != null) {
                    String subnodeName = subNode.getNodeName();
                    if ("condition".equals(subnodeName)) {
                        stateNode.setMetaData("Condition", xmlNode.getTextContent());
                        break;
                    }
                    subNode = subNode.getNextSibling();
                }
            }
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    }
   
  public void internalTrigger(NodeInstance from, String type) {
    super.internalTrigger(from, type);
        // TODO: composite states trigger
        StateNode stateNode = getStateNode();
        Connection selected = null;
        int priority = Integer.MAX_VALUE;
        for (Connection connection: stateNode.getOutgoingConnections(NodeImpl.CONNECTION_DEFAULT_TYPE)) {
            Constraint constraint = stateNode.getConstraint(connection);
            if (constraint != null && constraint.getPriority() < priority) {
              String rule = "RuleFlowStateNode-" + getProcessInstance().getProcessId() + "-" +
                getStateNode().getUniqueId() + "-" +
                connection.getTo().getId() + "-" +
                connection.getToType();
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                  for (Timer timer: milestone.getTimers().keySet()) {
                    validateTimer(timer, node, process, errors);
                  }
                }
            } else if (node instanceof StateNode) {
                final StateNode stateNode = (StateNode) node;
                if (stateNode.getDefaultIncomingConnections().size() == 0 && !acceptsNoIncomingConnections(node)) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "State node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection"));
                }
            }
            else if (node instanceof SubProcessNode) {
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                node = timerNode;
                handleTimerNode(node, element, uri, localName, parser);
                break;
            } else if ("conditionalEventDefinition".equals(nodeName)) {
                // create new stateNode
                StateNode stateNode = new StateNode();
                stateNode.setId(node.getId());
                stateNode.setName(node.getName());
                stateNode.setMetaData("UniqueId", node.getMetaData().get("UniqueId"));
                node = stateNode;
                handleStateNode(node, element, uri, localName, parser);
                break;
            }
            xmlNode = xmlNode.getNextSibling();
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Related Classes of org.drools.workflow.core.node.StateNode

  • org.drools.bpmn2.legacy.beta1.IntermediateCatchEventHandler
  • org.drools.bpmn2.legacy.beta1.ProcessHandler
  • org.drools.bpmn2.legacy.beta1.StateNodeHandler
  • org.drools.bpmn2.xml.IntermediateCatchEventHandler
  • org.drools.bpmn2.xml.ProcessHandler
  • org.drools.bpmn2.xml.StateNodeHandler
  • org.drools.compiler.ProcessBuilder
  • org.drools.compiler.xml.processes.StateNodeHandler
  • org.drools.compiler.xml.processes.XMLPersistenceTest
  • org.drools.ruleflow.core.validation.RuleFlowProcessValidator
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