Package org.drools.workflow.core.node

Examples of org.drools.workflow.core.node.ForEachNode$ForEachSplitNode

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        process.addNode(startNode);
        EndNode endNode = new EndNode();
        endNode.setName("EndNode");
        endNode.setId(2);
        process.addNode(endNode);
        ForEachNode forEachNode = new ForEachNode();
        forEachNode.setName("ForEach");
        forEachNode.setId(3);
        forEachNode.setCollectionExpression("persons");
        personDataType = new ObjectDataType();
        personDataType.setClassName("org.drools.Person");
        process.addNode(forEachNode);
        new ConnectionImpl(
            startNode, Node.CONNECTION_DEFAULT_TYPE,
            forEachNode, Node.CONNECTION_DEFAULT_TYPE
        );
        new ConnectionImpl(
            forEachNode, Node.CONNECTION_DEFAULT_TYPE,
            endNode, Node.CONNECTION_DEFAULT_TYPE
        );
       
        final List<String> myList = new ArrayList<String>();
        ActionNode actionNode = new ActionNode();
        actionNode.setName("Print child");
        DroolsAction action = new DroolsConsequenceAction("java", null);
        action.setMetaData("Action", new Action() {
            public void execute(KnowledgeHelper knowledgeHelper, WorkingMemory workingMemory, ProcessContext context) throws Exception {
              System.out.println("Executed action for child " + ((Person) context.getVariable("child")).getName());
                myList.add("Executed action");
            }
        });
        actionNode.setAction(action);
        forEachNode.addNode(actionNode);
        forEachNode.linkIncomingConnections(
            Node.CONNECTION_DEFAULT_TYPE,
            actionNode.getId(), Node.CONNECTION_DEFAULT_TYPE);
        forEachNode.linkOutgoingConnections(
            actionNode.getId(), Node.CONNECTION_DEFAULT_TYPE,
            Node.CONNECTION_DEFAULT_TYPE);
        forEachNode.setVariable("child", personDataType);
       
        AbstractRuleBase ruleBase = (AbstractRuleBase) RuleBaseFactory.newRuleBase();
        ruleBase.addProcess(process);
        InternalWorkingMemory workingMemory = new ReteooWorkingMemory(1, ruleBase);
        Map<String, Object> parameters = new HashMap<String, Object>();
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                        errors.add(new ProcessValidationErrorImpl(process,
                            "WorkItem node '" + node.getName() + "' [" + node.getId() + "] has no work name."));
                    }
                }
            } else if (node instanceof ForEachNode) {
                final ForEachNode forEachNode = (ForEachNode) node;
                String variableName = forEachNode.getVariableName();
                if (variableName == null || "".equals(variableName)) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no variable name"));
                }
                String collectionExpression = forEachNode.getCollectionExpression();
                if (collectionExpression == null || "".equals(collectionExpression)) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no collection expression"));
                }
                if (forEachNode.getIncomingConnections(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE).size() == 0) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no incoming connection"));
                }
                if (forEachNode.getOutgoingConnections(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE).size() == 0) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no outgoing connection"));
                }
                if (forEachNode.getLinkedIncomingNode(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE) == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no linked start node"));
                }
                if (forEachNode.getLinkedOutgoingNode(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE) == null) {
                    errors.add(new ProcessValidationErrorImpl(process,
                        "ForEach node '" + node.getName() + "' [" + node.getId() + "] has no linked end node"));
                }
                validateNodes(forEachNode.getNodes(), errors, process);
            } else if (node instanceof CompositeNode) {
                final CompositeNode compositeNode = (CompositeNode) node;
                for (Map.Entry<String, NodeAndType> inType: compositeNode.getLinkedIncomingNodes().entrySet()) {
                    if (compositeNode.getIncomingConnections(inType.getKey()).size() == 0) {
                        errors.add(new ProcessValidationErrorImpl(process,
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  private long linkedOutgoingNodeId = -1;

    public ForEachNodeFactory(RuleFlowNodeContainerFactory nodeContainerFactory, NodeContainer nodeContainer, long id) {
      this.nodeContainerFactory = nodeContainerFactory;
      this.nodeContainer = nodeContainer;
      ForEachNode forEachNode = new ForEachNode();
        forEachNode.setId(id);
        setNodeContainer(forEachNode);
    }
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        process.addNode(new RuleSetNode());
        process.addNode(new SubProcessNode());
        process.addNode(new WorkItemNode());
        process.addNode(new TimerNode());
        process.addNode(new HumanTaskNode());
        process.addNode(new ForEachNode());
        process.addNode(new CompositeContextNode());
        process.addNode(new EventNode());
        process.addNode(new FaultNode());
       
        String xml = XmlRuleFlowProcessDumper.INSTANCE.dump(process, false);
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        timer.setPeriod(1000);
        timerNode.setTimer(timer);
        process.addNode(timerNode);
        new ConnectionImpl(humanTaskNode, Node.CONNECTION_DEFAULT_TYPE, timerNode, Node.CONNECTION_DEFAULT_TYPE);
       
        ForEachNode forEachNode = new ForEachNode();
        forEachNode.setName("ForEach");
        forEachNode.setCollectionExpression("collection");
        forEachNode.setVariable("variableName", new ObjectDataType());
        forEachNode.setWaitForCompletion(false);
        ActionNode subActionNode1 = new ActionNode();
        forEachNode.getCompositeNode().addNode(subActionNode1);
        ActionNode subActionNode2 = new ActionNode();
        forEachNode.getCompositeNode().addNode(subActionNode2);
        new ConnectionImpl(subActionNode1, Node.CONNECTION_DEFAULT_TYPE, subActionNode2, Node.CONNECTION_DEFAULT_TYPE);
        forEachNode.getCompositeNode().linkIncomingConnections(Node.CONNECTION_DEFAULT_TYPE, subActionNode1.getId(), Node.CONNECTION_DEFAULT_TYPE);
        forEachNode.getCompositeNode().linkOutgoingConnections(subActionNode2.getId(), Node.CONNECTION_DEFAULT_TYPE, Node.CONNECTION_DEFAULT_TYPE);
        process.addNode(forEachNode);
        new ConnectionImpl(timerNode, Node.CONNECTION_DEFAULT_TYPE, forEachNode, Node.CONNECTION_DEFAULT_TYPE);
       
        CompositeContextNode compositeNode = new CompositeContextNode();
        compositeNode.setName("Composite");
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  public Class generateNodeFor() {
        return ForEachNode.class;
    }

    public void writeNode(Node node, StringBuilder xmlDump, boolean includeMeta) {
      ForEachNode forEachNode = (ForEachNode) node;
      writeNode("subProcess", forEachNode, xmlDump, includeMeta);
    xmlDump.append(" >" + EOL);
    // ioSpecification and dataInputAssociation
        xmlDump.append(
            "      <ioSpecification>" + EOL +
            "        <dataInput id=\"" + XmlBPMNProcessDumper.getUniqueNodeId(forEachNode) + "_input\" name=\"MultiInstanceInput\" />" + EOL +
            "        <inputSet>" + EOL +
            "          <dataInputRefs>" + XmlBPMNProcessDumper.getUniqueNodeId(forEachNode) + "_input</dataInputRefs>" + EOL +
            "        </inputSet>" + EOL +
            "        <outputSet/>" + EOL +
            "      </ioSpecification>" + EOL);
        String collectionExpression = forEachNode.getCollectionExpression();
        if (collectionExpression != null) {
            xmlDump.append(
                "      <dataInputAssociation>" + EOL +
                "        <sourceRef>" + XmlDumper.replaceIllegalChars(collectionExpression) + "</sourceRef>" + EOL +
                "        <targetRef>" + XmlBPMNProcessDumper.getUniqueNodeId(forEachNode) + "_input</targetRef>" + EOL +
                "      </dataInputAssociation>" + EOL);
        }
        // multiInstanceLoopCharacteristics
        xmlDump.append(
        "      <multiInstanceLoopCharacteristics>" + EOL +
            "        <loopDataInputRef>" + XmlBPMNProcessDumper.getUniqueNodeId(forEachNode) + "_input</loopDataInputRef>" + EOL);
        String parameterName = forEachNode.getVariableName();
        if (parameterName != null) {
          xmlDump.append("        <inputDataItem id=\"" + XmlDumper.replaceIllegalChars(parameterName) + "\" itemSubjectRef=\"" + XmlBPMNProcessDumper.getUniqueNodeId(forEachNode) + "_multiInstanceItemType\"/>" + EOL);
        }
        xmlDump.append("      </multiInstanceLoopCharacteristics>" + EOL);
    // nodes
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                                "  <message id=\"" + XmlDumper.replaceIllegalChars(eventType) + "\" structureRef=\"" + XmlDumper.replaceIllegalChars(eventType) + "Type\" />" + EOL + EOL);
                        }
                    }
                }
            } else if (node instanceof ForEachNode) {
              ForEachNode forEachNode = (ForEachNode) node;
                xmlDump.append(
                    "  <itemDefinition id=\"" + XmlBPMNProcessDumper.getUniqueNodeId(forEachNode) + "_multiInstanceItemType\" structureRef=\"" + XmlDumper.replaceIllegalChars(((ObjectDataType) forEachNode.getVariableType()).getClassName()) + "\"/>" + EOL + EOL);
            }
        }
    }
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    org.w3c.dom.Node xmlNode = element.getFirstChild();
    while (xmlNode != null) {
      String nodeName = xmlNode.getNodeName();
      if ("multiInstanceLoopCharacteristics".equals(nodeName)) {
        // create new timerNode
        ForEachNode forEachNode = new ForEachNode();
        forEachNode.setId(node.getId());
        forEachNode.setName(node.getName());
        for (org.drools.definition.process.Node subNode: ((CompositeContextNode) node).getNodes()) {
          forEachNode.addNode(subNode);
        }
        forEachNode.setMetaData(ProcessHandler.CONNECTIONS, ((CompositeContextNode) node).getMetaData(ProcessHandler.CONNECTIONS));
        node = forEachNode;
        handleForEachNode(node, element, uri, localName, parser);
        found = true;
        break;
      }
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    @SuppressWarnings("unchecked")
  protected void handleForEachNode(final Node node, final Element element, final String uri,
            final String localName, final ExtensibleXmlParser parser) throws SAXException {
      super.handleNode(node, element, uri, localName, parser);
      ForEachNode forEachNode = (ForEachNode) node;
      org.w3c.dom.Node xmlNode = element.getFirstChild();
        while (xmlNode != null) {
            String nodeName = xmlNode.getNodeName();
            if ("dataInputAssociation".equals(nodeName)) {
                readDataInputAssociation(xmlNode, forEachNode);
            } else if ("multiInstanceLoopCharacteristics".equals(nodeName)) {
              readMultiInstanceLoopCharacteristics(xmlNode, forEachNode, parser);
            }
            xmlNode = xmlNode.getNextSibling();
        }
      List<SequenceFlow> connections = (List<SequenceFlow>)
      forEachNode.getMetaData(ProcessHandler.CONNECTIONS);
      ProcessHandler.linkConnections(forEachNode, connections);
      ProcessHandler.linkBoundaryEvents(forEachNode);
    }
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  private long linkedOutgoingNodeId = -1;

    public ForEachNodeFactory(RuleFlowNodeContainerFactory nodeContainerFactory, NodeContainer nodeContainer, long id) {
      this.nodeContainerFactory = nodeContainerFactory;
      this.nodeContainer = nodeContainer;
      ForEachNode forEachNode = new ForEachNode();
        forEachNode.setId(id);
        setNodeContainer(forEachNode);
    }
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Related Classes of org.drools.workflow.core.node.ForEachNode$ForEachSplitNode

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  • org.drools.compiler.xml.processes.ForEachNodeHandler
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  • org.drools.process.core.context.variable.Variable
  • org.drools.process.core.context.variable.VariableScope
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