Examples with Node org.kie.api.definition.process.Node used on opensource projects

Example 16 with Node

use of org.kie.api.definition.process.Node in project jbpm by kiegroup.

the class RuleFlowProcessValidator method validateCompensationIntermediateOrEndEvent.

protected void validateCompensationIntermediateOrEndEvent(Node node, RuleFlowProcess process, List<ProcessValidationError> errors) {
    if (node.getMetaData().containsKey("Compensation")) {
        // Validate that activityRef in throw/end compensation event refers to "visible" compensation
        String activityRef = (String) node.getMetaData().get("Compensation");
        Node refNode = null;
        if (activityRef != null) {
            Queue<Node> nodeQueue = new LinkedList<Node>();
            nodeQueue.addAll(Arrays.asList(process.getNodes()));
            while (!nodeQueue.isEmpty()) {
                Node polledNode = nodeQueue.poll();
                if (activityRef.equals(polledNode.getMetaData().get("UniqueId"))) {
                    refNode = polledNode;
                    break;
                }
                if (node instanceof NodeContainer) {
                    nodeQueue.addAll(Arrays.asList(((NodeContainer) node).getNodes()));
                }
            }
        }
        if (refNode == null) {
            addErrorMessage(process, node, errors, "Does not reference an activity that exists (" + activityRef + ") in its compensation event definition.");
        }
        CompensationScope compensationScope = (CompensationScope) ((NodeImpl) node).resolveContext(CompensationScope.COMPENSATION_SCOPE, activityRef);
        if (compensationScope == null) {
            addErrorMessage(process, node, errors, "References an activity (" + activityRef + ") in its compensation event definition that is not visible to it.");
        }
    }
}

Example 17 with Node

use of org.kie.api.definition.process.Node in project jbpm by kiegroup.

the class RuleFlowProcessValidator method validateNodes.

private void validateNodes(Node[] nodes, List<ProcessValidationError> errors, RuleFlowProcess process) {
    String isForCompensation = "isForCompensation";
    for (int i = 0; i < nodes.length; i++) {
        final Node node = nodes[i];
        if (node instanceof StartNode) {
            final StartNode startNode = (StartNode) node;
            if (startNode.getTo() == null) {
                addErrorMessage(process, node, errors, "Start has no outgoing connection.");
            }
            if (startNode.getTimer() != null) {
                validateTimer(startNode.getTimer(), node, process, errors);
            }
        } else if (node instanceof EndNode) {
            final EndNode endNode = (EndNode) node;
            if (endNode.getFrom() == null) {
                addErrorMessage(process, node, errors, "End has no incoming connection.");
            }
            validateCompensationIntermediateOrEndEvent(endNode, process, errors);
        } else if (node instanceof RuleSetNode) {
            final RuleSetNode ruleSetNode = (RuleSetNode) node;
            if (ruleSetNode.getFrom() == null && !acceptsNoIncomingConnections(node)) {
                addErrorMessage(process, node, errors, "RuleSet has no incoming connection.");
            }
            if (ruleSetNode.getTo() == null && !acceptsNoOutgoingConnections(node)) {
                addErrorMessage(process, node, errors, "RuleSet has no outgoing connection.");
            }
            final String language = ruleSetNode.getLanguage();
            if (RuleSetNode.DRL_LANG.equals(language)) {
                final String ruleFlowGroup = ruleSetNode.getRuleFlowGroup();
                if (ruleFlowGroup == null || "".equals(ruleFlowGroup)) {
                    addErrorMessage(process, node, errors, "RuleSet (DRL) has no ruleflow-group.");
                }
            } else if (RuleSetNode.DMN_LANG.equals(language)) {
                final String namespace = ruleSetNode.getNamespace();
                if (namespace == null || "".equals(namespace)) {
                    addErrorMessage(process, node, errors, "RuleSet (DMN) has no namespace.");
                }
                final String model = ruleSetNode.getModel();
                if (model == null || "".equals(model)) {
                    addErrorMessage(process, node, errors, "RuleSet (DMN) has no model.");
                }
            } else {
                addErrorMessage(process, node, errors, "Unsupported rule language '" + language + "'");
            }
            if (ruleSetNode.getTimers() != null) {
                for (Timer timer : ruleSetNode.getTimers().keySet()) {
                    validateTimer(timer, node, process, errors);
                }
            }
        } else if (node instanceof Split) {
            final Split split = (Split) node;
            if (split.getType() == Split.TYPE_UNDEFINED) {
                addErrorMessage(process, node, errors, "Split has no type.");
            }
            if (split.getFrom() == null && !acceptsNoIncomingConnections(node)) {
                addErrorMessage(process, node, errors, "Split has no incoming connection.");
            }
            if (split.getDefaultOutgoingConnections().size() < 2) {
                addErrorMessage(process, node, errors, "Split does not have more than one outgoing connection: " + split.getOutgoingConnections().size() + ".");
            }
            if (split.getType() == Split.TYPE_XOR || split.getType() == Split.TYPE_OR) {
                for (final Iterator<Connection> it = split.getDefaultOutgoingConnections().iterator(); it.hasNext(); ) {
                    final Connection connection = it.next();
                    if (split.getConstraint(connection) == null && !split.isDefault(connection) || (!split.isDefault(connection) && (split.getConstraint(connection).getConstraint() == null || split.getConstraint(connection).getConstraint().trim().length() == 0))) {
                        addErrorMessage(process, node, errors, "Split does not have a constraint for " + connection.toString() + ".");
                    }
                }
            }
        } else if (node instanceof Join) {
            final Join join = (Join) node;
            if (join.getType() == Join.TYPE_UNDEFINED) {
                addErrorMessage(process, node, errors, "Join has no type.");
            }
            if (join.getDefaultIncomingConnections().size() < 2) {
                addErrorMessage(process, node, errors, "Join does not have more than one incoming connection: " + join.getIncomingConnections().size() + ".");
            }
            if (join.getTo() == null && !acceptsNoOutgoingConnections(node)) {
                addErrorMessage(process, node, errors, "Join has no outgoing connection.");
            }
            if (join.getType() == Join.TYPE_N_OF_M) {
                String n = join.getN();
                if (!n.startsWith("#{") || !n.endsWith("}")) {
                    try {
                        new Integer(n);
                    } catch (NumberFormatException e) {
                        addErrorMessage(process, node, errors, "Join has illegal n value: " + n);
                    }
                }
            }
        } else if (node instanceof MilestoneNode) {
            final MilestoneNode milestone = (MilestoneNode) node;
            if (milestone.getFrom() == null && !acceptsNoIncomingConnections(node)) {
                addErrorMessage(process, node, errors, "Milestone has no incoming connection.");
            }
            if (milestone.getTo() == null && !acceptsNoOutgoingConnections(node)) {
                addErrorMessage(process, node, errors, "Milestone has no outgoing connection.");
            }
            if (milestone.getConstraint() == null) {
                addErrorMessage(process, node, errors, "Milestone has no constraint.");
            }
            if (milestone.getTimers() != null) {
                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)) {
                addErrorMessage(process, node, errors, "State has no incoming connection");
            }
        } else if (node instanceof SubProcessNode) {
            final SubProcessNode subProcess = (SubProcessNode) node;
            if (subProcess.getFrom() == null && !acceptsNoIncomingConnections(node)) {
                addErrorMessage(process, node, errors, "SubProcess has no incoming connection.");
            }
            if (subProcess.getTo() == null && !acceptsNoOutgoingConnections(node)) {
                Object compensationObj = subProcess.getMetaData(isForCompensation);
                if (compensationObj == null || !((Boolean) compensationObj)) {
                    addErrorMessage(process, node, errors, "SubProcess has no outgoing connection.");
                }
            }
            if (subProcess.getProcessId() == null && subProcess.getProcessName() == null) {
                addErrorMessage(process, node, errors, "SubProcess has no process id.");
            }
            if (subProcess.getTimers() != null) {
                for (Timer timer : subProcess.getTimers().keySet()) {
                    validateTimer(timer, node, process, errors);
                }
            }
            if (!subProcess.isIndependent() && !subProcess.isWaitForCompletion()) {
                addErrorMessage(process, node, errors, "SubProcess you can only set " + "independent to 'false' only when 'Wait for completion' is set to true.");
            }
        } else if (node instanceof ActionNode) {
            final ActionNode actionNode = (ActionNode) node;
            if (actionNode.getFrom() == null && !acceptsNoIncomingConnections(node)) {
                addErrorMessage(process, node, errors, "Action has no incoming connection.");
            }
            if (actionNode.getTo() == null && !acceptsNoOutgoingConnections(node)) {
                Object compensationObj = actionNode.getMetaData(isForCompensation);
                if (compensationObj == null || !((Boolean) compensationObj)) {
                    addErrorMessage(process, node, errors, "Action has no outgoing connection.");
                }
            }
            if (actionNode.getAction() == null) {
                addErrorMessage(process, node, errors, "Action has no action.");
            } else if (actionNode.getAction() instanceof DroolsConsequenceAction) {
                DroolsConsequenceAction droolsAction = (DroolsConsequenceAction) actionNode.getAction();
                String actionString = droolsAction.getConsequence();
                if (actionString == null) {
                    addErrorMessage(process, node, errors, "Action has empty action.");
                } else if ("mvel".equals(droolsAction.getDialect())) {
                    try {
                        ParserContext parserContext = new ParserContext();
                        // parserContext.setStrictTypeEnforcement(true);
                        ExpressionCompiler compiler = new ExpressionCompiler(actionString, parserContext);
                        compiler.setVerifying(true);
                        compiler.compile();
                        List<ErrorDetail> mvelErrors = parserContext.getErrorList();
                        if (mvelErrors != null) {
                            for (Iterator<ErrorDetail> iterator = mvelErrors.iterator(); iterator.hasNext(); ) {
                                ErrorDetail error = iterator.next();
                                addErrorMessage(process, node, errors, "Action has invalid action: " + error.getMessage() + ".");
                            }
                        }
                    } catch (Throwable t) {
                        addErrorMessage(process, node, errors, "Action has invalid action: " + t.getMessage() + ".");
                    }
                }
                // TODO: validation for "java" and "drools" scripts!
                validateCompensationIntermediateOrEndEvent(actionNode, process, errors);
            }
        } else if (node instanceof WorkItemNode) {
            final WorkItemNode workItemNode = (WorkItemNode) node;
            if (workItemNode.getFrom() == null && !acceptsNoIncomingConnections(node)) {
                addErrorMessage(process, node, errors, "Task has no incoming connection.");
            }
            if (workItemNode.getTo() == null && !acceptsNoOutgoingConnections(node)) {
                Object compensationObj = workItemNode.getMetaData(isForCompensation);
                if (compensationObj == null || !((Boolean) compensationObj)) {
                    addErrorMessage(process, node, errors, "Task has no outgoing connection.");
                }
            }
            if (workItemNode.getWork() == null) {
                addErrorMessage(process, node, errors, "Task has no work specified.");
            } else {
                Work work = workItemNode.getWork();
                if (work.getName() == null || work.getName().trim().length() == 0) {
                    addErrorMessage(process, node, errors, "Task has no task type.");
                }
            }
            if (workItemNode.getTimers() != null) {
                for (Timer timer : workItemNode.getTimers().keySet()) {
                    validateTimer(timer, node, process, errors);
                }
            }
        } else if (node instanceof ForEachNode) {
            final ForEachNode forEachNode = (ForEachNode) node;
            String variableName = forEachNode.getVariableName();
            if (variableName == null || "".equals(variableName)) {
                addErrorMessage(process, node, errors, "ForEach has no variable name");
            }
            String collectionExpression = forEachNode.getCollectionExpression();
            if (collectionExpression == null || "".equals(collectionExpression)) {
                addErrorMessage(process, node, errors, "ForEach has no collection expression");
            }
            if (forEachNode.getDefaultIncomingConnections().size() == 0 && !acceptsNoIncomingConnections(node)) {
                addErrorMessage(process, node, errors, "ForEach has no incoming connection");
            }
            if (forEachNode.getDefaultOutgoingConnections().size() == 0 && !acceptsNoOutgoingConnections(node)) {
                addErrorMessage(process, node, errors, "ForEach has no outgoing connection");
            }
            // TODO: check, if no linked connections, for start and end node(s)
            // if (forEachNode.getLinkedIncomingNode(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE) == null) {
            // errors.add(new ProcessValidationErrorImpl(process,
            // "ForEach node '%s' [%d] has no linked start node"));
            // }
            // if (forEachNode.getLinkedOutgoingNode(org.drools.workflow.core.Node.CONNECTION_DEFAULT_TYPE) == null) {
            // errors.add(new ProcessValidationErrorImpl(process,
            // "ForEach node '%s' [%d] has no linked end node"));
            // }
            validateNodes(forEachNode.getNodes(), errors, process);
        } else if (node instanceof DynamicNode) {
            final DynamicNode dynamicNode = (DynamicNode) node;
            if (dynamicNode.getDefaultIncomingConnections().size() == 0 && !acceptsNoIncomingConnections(dynamicNode)) {
                addErrorMessage(process, node, errors, "Dynamic has no incoming connection");
            }
            if (dynamicNode.getDefaultOutgoingConnections().size() == 0 && !acceptsNoOutgoingConnections(dynamicNode)) {
                addErrorMessage(process, node, errors, "Dynamic has no outgoing connection");
            }
            if ("".equals(dynamicNode.getCompletionExpression()) && !dynamicNode.isAutoComplete()) {
                addErrorMessage(process, node, errors, "Dynamic has no completion condition set");
            }
            validateNodes(dynamicNode.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 && !acceptsNoIncomingConnections(node)) {
                    addErrorMessage(process, node, errors, "Composite has no incoming connection for type " + inType.getKey());
                }
                if (inType.getValue().getNode() == null && !acceptsNoOutgoingConnections(node)) {
                    addErrorMessage(process, node, errors, "Composite has invalid linked incoming node for type " + inType.getKey());
                }
            }
            for (Map.Entry<String, NodeAndType> outType : compositeNode.getLinkedOutgoingNodes().entrySet()) {
                if (compositeNode.getOutgoingConnections(outType.getKey()).size() == 0) {
                    addErrorMessage(process, node, errors, "Composite has no outgoing connection for type " + outType.getKey());
                }
                if (outType.getValue().getNode() == null) {
                    addErrorMessage(process, node, errors, "Composite has invalid linked outgoing node for type " + outType.getKey());
                }
            }
            if (compositeNode instanceof EventSubProcessNode) {
                if (compositeNode.getIncomingConnections().size() > 0) {
                    addErrorMessage(process, node, errors, "Event subprocess is not allowed to have any incoming connections.");
                }
                if (compositeNode.getOutgoingConnections().size() > 0) {
                    addErrorMessage(process, node, errors, "Event subprocess is not allowed to have any outgoing connections.");
                }
                Node[] eventSubProcessNodes = compositeNode.getNodes();
                int startEventCount = 0;
                for (int j = 0; j < eventSubProcessNodes.length; ++j) {
                    if (eventSubProcessNodes[j] instanceof StartNode) {
                        StartNode startNode = (StartNode) eventSubProcessNodes[j];
                        if (++startEventCount == 2) {
                            addErrorMessage(process, compositeNode, errors, "Event subprocess is not allowed to have more than one start node.");
                        }
                        if (startNode.getTriggers() == null || startNode.getTriggers().isEmpty()) {
                            addErrorMessage(process, startNode, errors, "Start in Event SubProcess '" + compositeNode.getName() + "' [" + compositeNode.getId() + "] must contain a trigger (event definition).");
                        }
                    }
                }
            } else {
                Boolean isForCompensationObject = (Boolean) compositeNode.getMetaData("isForCompensation");
                if (compositeNode.getIncomingConnections().size() == 0 && !Boolean.TRUE.equals(isForCompensationObject)) {
                    addErrorMessage(process, node, errors, "Embedded subprocess does not have incoming connection.");
                }
                if (compositeNode.getOutgoingConnections().size() == 0 && !Boolean.TRUE.equals(isForCompensationObject)) {
                    addErrorMessage(process, node, errors, "Embedded subprocess does not have outgoing connection.");
                }
            }
            if (compositeNode.getTimers() != null) {
                for (Timer timer : compositeNode.getTimers().keySet()) {
                    validateTimer(timer, node, process, errors);
                }
            }
            validateNodes(compositeNode.getNodes(), errors, process);
        } else if (node instanceof EventNode) {
            final EventNode eventNode = (EventNode) node;
            if (eventNode.getEventFilters().size() == 0) {
                addErrorMessage(process, node, errors, "Event should specify an event type");
            }
            if (eventNode.getDefaultOutgoingConnections().size() == 0) {
                addErrorMessage(process, node, errors, "Event has no outgoing connection");
            } else {
                List<EventFilter> eventFilters = eventNode.getEventFilters();
                boolean compensationHandler = false;
                for (EventFilter eventFilter : eventFilters) {
                    if (((EventTypeFilter) eventFilter).getType().startsWith("Compensation")) {
                        compensationHandler = true;
                        break;
                    }
                }
                if (compensationHandler && eventNode instanceof BoundaryEventNode) {
                    Connection connection = eventNode.getDefaultOutgoingConnections().get(0);
                    Boolean isAssociation = (Boolean) connection.getMetaData().get("association");
                    if (isAssociation == null) {
                        isAssociation = false;
                    }
                    if (!(eventNode.getDefaultOutgoingConnections().size() == 1 && connection != null && isAssociation)) {
                        addErrorMessage(process, node, errors, "Compensation Boundary Event is only allowed to have 1 association to 1 compensation activity.");
                    }
                }
            }
        } else if (node instanceof FaultNode) {
            final FaultNode faultNode = (FaultNode) node;
            if (faultNode.getFrom() == null && !acceptsNoIncomingConnections(node)) {
                addErrorMessage(process, node, errors, "Fault has no incoming connection.");
            }
            if (faultNode.getFaultName() == null) {
                addErrorMessage(process, node, errors, "Fault has no fault name.");
            }
        } else if (node instanceof TimerNode) {
            TimerNode timerNode = (TimerNode) node;
            if (timerNode.getFrom() == null && !acceptsNoIncomingConnections(node)) {
                addErrorMessage(process, node, errors, "Timer has no incoming connection.");
            }
            if (timerNode.getTo() == null && !acceptsNoOutgoingConnections(node)) {
                addErrorMessage(process, node, errors, "Timer has no outgoing connection.");
            }
            if (timerNode.getTimer() == null) {
                addErrorMessage(process, node, errors, "Timer has no timer specified.");
            } else {
                validateTimer(timerNode.getTimer(), node, process, errors);
            }
        } else if (node instanceof CatchLinkNode) {
        // catchlink validation here, there also are validations in
        // ProcessHandler regarding connection issues
        } else if (node instanceof ThrowLinkNode) {
        // throw validation here, there also are validations in
        // ProcessHandler regarding connection issues
        } else {
            errors.add(new ProcessValidationErrorImpl(process, "Unknown node type '" + node.getClass().getName() + "'"));
        }
    }
}

Example 18 with Node

use of org.kie.api.definition.process.Node in project jbpm by kiegroup.

the class RuleFlowProcessInstance method internalStart.

public void internalStart(String trigger) {
    StartNode startNode = getRuleFlowProcess().getStart(trigger);
    if (startNode != null) {
        ((NodeInstance) getNodeInstance(startNode)).trigger(null, null);
    }
    // activate ad hoc fragments if they are marked as such
    List<Node> autoStartNodes = getRuleFlowProcess().getAutoStartNodes();
    autoStartNodes.forEach(austoStartNode -> signalEvent(austoStartNode.getName(), null));
}

Example 19 with Node

use of org.kie.api.definition.process.Node in project jbpm by kiegroup.

the class WorkItemNodeInstance method getNodeName.

public String getNodeName() {
    Node node = getNode();
    if (node == null) {
        String nodeName = "[Dynamic]";
        WorkItem workItem = getWorkItem();
        if (workItem != null) {
            nodeName += " " + workItem.getParameter("TaskName");
        }
        return nodeName;
    }
    return super.getNodeName();
}

Example 20 with Node

use of org.kie.api.definition.process.Node in project jbpm by kiegroup.

the class JoinInstance method checkNodes.

private boolean checkNodes(Set<Long> vistedNodes, Node startAt, Node currentNode, Node lookFor) {
    if (currentNode == null) {
        // for dynamic/ad hoc task there is no node
        return false;
    }
    List<Connection> connections = currentNode.getOutgoingConnections(org.jbpm.workflow.core.Node.CONNECTION_DEFAULT_TYPE);
    // special handling for XOR split as it usually is used for arbitrary loops
    if (currentNode instanceof Split && ((Split) currentNode).getType() == Split.TYPE_XOR) {
        if (vistedNodes.contains(startAt.getId())) {
            return false;
        }
        for (Connection conn : connections) {
            Set<Long> xorCopy = new HashSet<Long>(vistedNodes);
            Node nextNode = conn.getTo();
            if (nextNode == null) {
                continue;
            } else {
                xorCopy.add(nextNode.getId());
                if (nextNode.getId() != lookFor.getId()) {
                    checkNodes(xorCopy, currentNode, nextNode, lookFor);
                }
            }
            if (xorCopy.contains(lookFor.getId())) {
                vistedNodes.addAll(xorCopy);
                return true;
            }
        }
    } else {
        for (Connection conn : connections) {
            Node nextNode = conn.getTo();
            if (nextNode == null) {
                continue;
            } else {
                if (vistedNodes.contains(nextNode.getId())) {
                    // we have already been here so let's continue
                    continue;
                }
                if (nextNode.getId() == lookFor.getId()) {
                    // we found the node that we are looking for, add it and continue to find out other parts
                    // as it could be part of a loop
                    vistedNodes.add(nextNode.getId());
                    continue;
                }
                vistedNodes.add(nextNode.getId());
                if (startAt.getId() == nextNode.getId()) {
                    return true;
                } else {
                    boolean nestedCheck = checkNodes(vistedNodes, startAt, nextNode, lookFor);
                    if (nestedCheck) {
                        return true;
                    }
                }
            }
        }
    }
    return false;
}