Package org.drools.workflow.core.node

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


import org.xml.sax.SAXException;

public class IntermediateThrowEventHandler extends AbstractNodeHandler {
   
    protected Node createNode(Attributes attrs) {
        return new ActionNode();
    }
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    }

    public Object end(final String uri, final String localName,
                      final ExtensibleXmlParser parser) throws SAXException {
        final Element element = parser.endElementBuilder();
        ActionNode node = (ActionNode) parser.getCurrent();
        // determine type of event definition, so the correct type of node
        // can be generated
        org.w3c.dom.Node xmlNode = element.getFirstChild();
        while (xmlNode != null) {
            String nodeName = xmlNode.getNodeName();
            if ("signalEventDefinition".equals(nodeName)) {
                // reuse already created ActionNode
                handleSignalNode(node, element, uri, localName, parser);
                break;
            } else if ("messageEventDefinition".equals(nodeName)) {
                // reuse already created ActionNode
                handleMessageNode(node, element, uri, localName, parser);
                break;
            } else if ("escalationEventDefinition".equals(nodeName)) {
                // reuse already created ActionNode
                handleEscalationNode(node, element, uri, localName, parser);
                break;
            } else if ("compensateEventDefinition".equals(nodeName)) {
                // reuse already created ActionNode
                handleCompensationNode(node, element, uri, localName, parser);
                break;
            }
            xmlNode = xmlNode.getNextSibling();
        }
        // none event definition
        if (node.getAction() == null) {
            node.setAction(new DroolsConsequenceAction("mvel", ""));
            node.setMetaData("NodeType", "IntermediateThrowEvent-None");
        }
        NodeContainer nodeContainer = (NodeContainer) parser.getParent();
        nodeContainer.addNode(node);
        return node;
    }
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        return node;
    }
   
    public void handleSignalNode(final Node node, final Element element, final String uri,
            final String localName, final ExtensibleXmlParser parser) throws SAXException {
        ActionNode actionNode = (ActionNode) node;
        org.w3c.dom.Node xmlNode = element.getFirstChild();
        while (xmlNode != null) {
            String nodeName = xmlNode.getNodeName();
            if ("dataInputAssociation".equals(nodeName)) {
                readDataInputAssociation(xmlNode, actionNode);
            } else if ("signalEventDefinition".equals(nodeName)) {
                String signalName = ((Element) xmlNode).getAttribute("signalRef");
                String variable = (String) actionNode.getMetaData("MappingVariable");
                actionNode.setAction(new DroolsConsequenceAction("mvel",
                    "kcontext.getKnowledgeRuntime().signalEvent(\""
                        + signalName + "\", " + (variable == null ? "null" : variable) + ")"));
            }
            xmlNode = xmlNode.getNextSibling();
        }
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    }
   
    @SuppressWarnings("unchecked")
    public void handleMessageNode(final Node node, final Element element, final String uri,
            final String localName, final ExtensibleXmlParser parser) throws SAXException {
        ActionNode actionNode = (ActionNode) node;
        org.w3c.dom.Node xmlNode = element.getFirstChild();
        while (xmlNode != null) {
            String nodeName = xmlNode.getNodeName();
            if ("dataInputAssociation".equals(nodeName)) {
                readDataInputAssociation(xmlNode, actionNode);
            } else if ("messageEventDefinition".equals(nodeName)) {
                String messageRef = ((Element) xmlNode).getAttribute("messageRef");
                Map<String, Message> messages = (Map<String, Message>)
                    ((ProcessBuildData) parser.getData()).getMetaData("Messages");
                if (messages == null) {
                    throw new IllegalArgumentException("No messages found");
                }
                Message message = messages.get(messageRef);
                if (message == null) {
                    throw new IllegalArgumentException("Could not find message " + messageRef);
                }
                String variable = (String) actionNode.getMetaData("MappingVariable");
                actionNode.setMetaData("MessageType", message.getType());
                actionNode.setAction(new DroolsConsequenceAction("java",
                    "org.drools.process.instance.impl.WorkItemImpl workItem = new org.drools.process.instance.impl.WorkItemImpl();" + EOL +
                    "workItem.setName(\"Send Task\");" + EOL +
                    "workItem.setParameter(\"MessageType\", \"" + message.getType() + "\");" + EOL +
                    (variable == null ? "" : "workItem.setParameter(\"Message\", " + variable + ");" + EOL) +
                    "((org.drools.process.instance.WorkItemManager) kcontext.getKnowledgeRuntime().getWorkItemManager()).internalExecuteWorkItem(workItem);"));
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    }
   
    @SuppressWarnings("unchecked")
  public void handleEscalationNode(final Node node, final Element element, final String uri,
            final String localName, final ExtensibleXmlParser parser) throws SAXException {
        ActionNode actionNode = (ActionNode) node;
        org.w3c.dom.Node xmlNode = element.getFirstChild();
        while (xmlNode != null) {
            String nodeName = xmlNode.getNodeName();
            if ("dataInputAssociation".equals(nodeName)) {
                readDataInputAssociation(xmlNode, actionNode);
            } else if ("escalationEventDefinition".equals(nodeName)) {
              String escalationRef = ((Element) xmlNode).getAttribute("escalationRef");
                if (escalationRef != null && escalationRef.trim().length() > 0) {
                    Map<String, Escalation> escalations = (Map<String, Escalation>)
                    ((ProcessBuildData) parser.getData()).getMetaData("Escalations");
                if (escalations == null) {
                    throw new IllegalArgumentException("No escalations found");
                }
                Escalation escalation = escalations.get(escalationRef);
                if (escalation == null) {
                    throw new IllegalArgumentException("Could not find escalation " + escalationRef);
                }
                String faultName = escalation.getEscalationCode();
                    actionNode.setAction(new DroolsConsequenceAction("java",
                        "org.drools.process.instance.context.exception.ExceptionScopeInstance scopeInstance = (org.drools.process.instance.context.exception.ExceptionScopeInstance) ((org.drools.workflow.instance.NodeInstance) kcontext.getNodeInstance()).resolveContextInstance(org.drools.process.core.context.exception.ExceptionScope.EXCEPTION_SCOPE, \"" + faultName + "\");" + EOL +
                        "if (scopeInstance != null) {" + EOL +
                        "  scopeInstance.handleException(\"" + faultName + "\", null);" + EOL +
                        "} else {" + EOL +
                        "    ((org.drools.process.instance.ProcessInstance) kcontext.getProcessInstance()).setState(org.drools.process.instance.ProcessInstance.STATE_ABORTED);" + EOL +
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        }
    }
   
    public void handleCompensationNode(final Node node, final Element element, final String uri,
            final String localName, final ExtensibleXmlParser parser) throws SAXException {
        ActionNode actionNode = (ActionNode) node;
        org.w3c.dom.Node xmlNode = element.getFirstChild();
        while (xmlNode != null) {
            String nodeName = xmlNode.getNodeName();
            if ("compensateEventDefinition".equals(nodeName)) {
                String activityRef = ((Element) xmlNode).getAttribute("activityRef");
                if (activityRef != null && activityRef.trim().length() > 0) {
                  actionNode.setMetaData("Compensate", activityRef);
                  actionNode.setAction(new DroolsConsequenceAction("java",
                  "kcontext.getProcessInstance().signalEvent(\"Compensate-" + activityRef + "\", null);"));
                }
//                boolean waitForCompletion = true;
//                String waitForCompletionString = ((Element) xmlNode).getAttribute("waitForCompletion");
//                if ("false".equals(waitForCompletionString)) {
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import org.xml.sax.SAXException;

public class ScriptTaskHandler extends AbstractNodeHandler {
   
    protected Node createNode(Attributes attrs) {
        ActionNode result = new ActionNode();
        result.setAction(new DroolsConsequenceAction());
        return result;
    }
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    }

    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);
        ActionNode actionNode = (ActionNode) node;
        DroolsConsequenceAction action = (DroolsConsequenceAction) actionNode.getAction();
        if (action == null) {
          action = new DroolsConsequenceAction();
          actionNode.setAction(action);
        }
    String language = element.getAttribute("scriptFormat");
    if (XmlBPMNProcessDumper.JAVA_LANGUAGE.equals(language)) {
      action.setDialect(JavaDialect.ID);
    }
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                if (subProcess.getProcessId() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "SubProcess node '" + node.getName() + "' [" + node.getId() + "] has no process id."));
                }
            } else if (node instanceof ActionNode) {
                final ActionNode actionNode = (ActionNode) node;
                if (actionNode.getFrom() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Action node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection."));
                }
                if (actionNode.getTo() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Action node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection."));
                }
                if (actionNode.getAction() == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "Action node '" + node.getName() + "' [" + node.getId() + "] has no action."));
                } else {
                    if (actionNode.getAction() instanceof DroolsConsequenceAction) {
                        DroolsConsequenceAction droolsAction = (DroolsConsequenceAction) actionNode.getAction();
                        String actionString = droolsAction.getConsequence();
                        if (actionString == null) {
                            errors.add(new ProcessValidationErrorImpl(process,
                                "Action node '" + node.getName() + "' [" + node.getId() + "] has empty action."));
                        } else {
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        process.setPackageName( "org.drools.test" );
        StartNode start = new StartNode();
        start.setId( 1 );
        start.setName( "Start" );
        process.addNode( start );
        ActionNode actionNode = new ActionNode();
        actionNode.setId( 2 );
        actionNode.setName( "Action" );
        DroolsConsequenceAction action = new DroolsConsequenceAction();
        action.setDialect( "java" );
        action.setConsequence( "System.out.println(\"Executed action\");" );
        actionNode.setAction( action );
        process.addNode( actionNode );
        new ConnectionImpl( start,
                            Node.CONNECTION_DEFAULT_TYPE,
                            actionNode,
                            Node.CONNECTION_DEFAULT_TYPE );
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