Examples with NodeAndType io.automatiko.engine.workflow.process.core.node.CompositeNode.NodeAndType used on opensource projects

Example 1 with NodeAndType

use of io.automatiko.engine.workflow.process.core.node.CompositeNode.NodeAndType in project automatiko-engine by automatiko-io.

the class ExecutableProcessValidator method validateNodes.

private void validateNodes(Node[] nodes, List<ProcessValidationError> errors, ExecutableProcess 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();
            RuleSetNode.RuleType ruleType = ruleSetNode.getRuleType();
            if (RuleSetNode.DMN_LANG.equals(language) || RuleSetNode.CMMN_DMN_LANG.equals(language)) {
                RuleSetNode.RuleType.Decision decision = (RuleSetNode.RuleType.Decision) ruleType;
                final String namespace = decision.getNamespace();
                if (namespace == null || "".equals(namespace)) {
                    addErrorMessage(process, node, errors, "RuleSet (DMN) has no namespace.");
                }
                final String model = decision.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.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.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 {
                        Integer.parseInt(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.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().isEmpty() && !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.");
                }
            }
            // but not in Kogito)
            if (actionNode.getAction() instanceof ConsequenceAction) {
                ConsequenceAction processAction = (ConsequenceAction) actionNode.getAction();
                String actionString = processAction.getConsequence();
                if (actionString == null) {
                    addErrorMessage(process, node, errors, "Action has empty action.");
                } else if ("mvel".equals(processAction.getDialect())) {
                    try {
                        ParserContext parserContext = new ParserContext();
                        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() + ".");
                    }
                }
                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().isEmpty() && !acceptsNoIncomingConnections(node)) {
                addErrorMessage(process, node, errors, "ForEach has no incoming connection");
            }
            if (forEachNode.getDefaultOutgoingConnections().isEmpty() && !acceptsNoOutgoingConnections(node)) {
                addErrorMessage(process, node, errors, "ForEach has no outgoing connection");
            }
            final List<Node> start = ExecutableProcess.getStartNodes(forEachNode.getNodes());
            if (start != null) {
                for (Node s : start) {
                    if (((StartNode) s).getTriggers() != null && !((StartNode) s).getTriggers().isEmpty() || ((StartNode) s).getTimer() != null) {
                        addErrorMessage(process, node, errors, "MultiInstance subprocess can only have none start event.");
                    }
                }
            }
            validateNodes(forEachNode.getNodes(), errors, process);
        } else if (node instanceof DynamicNode) {
            final DynamicNode dynamicNode = (DynamicNode) node;
            if (dynamicNode.getDefaultIncomingConnections().isEmpty() && !acceptsNoIncomingConnections(dynamicNode)) {
                addErrorMessage(process, node, errors, "Dynamic has no incoming connection");
            }
            if (dynamicNode.getDefaultOutgoingConnections().isEmpty() && !acceptsNoOutgoingConnections(dynamicNode)) {
                addErrorMessage(process, node, errors, "Dynamic has no outgoing connection");
            }
            if (!dynamicNode.hasCompletionCondition() && !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()).isEmpty() && !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()).isEmpty()) {
                    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.getLinkedIncomingNodes().values().isEmpty()) {
                boolean foundStartNode = false;
                for (Node internalNode : compositeNode.getNodes()) {
                    if (internalNode instanceof StartNode) {
                        foundStartNode = true;
                    }
                }
                if (!foundStartNode) {
                    addErrorMessage(process, node, errors, "Composite has no start node defined.");
                }
            }
            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.getTimer() == null && (startNode.getTriggers() == null || startNode.getTriggers().isEmpty()) && !startNode.hasCondition()) {
                            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.");
                }
                final List<Node> start = ExecutableProcess.getStartNodes(compositeNode.getNodes());
                if (start != null) {
                    for (Node s : start) {
                        if (((StartNode) s).getTriggers() != null && !((StartNode) s).getTriggers().isEmpty() || ((StartNode) s).getTimer() != null) {
                            addErrorMessage(process, node, errors, "Embedded subprocess can only have none start event.");
                        }
                    }
                }
            }
            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().isEmpty()) {
                addErrorMessage(process, node, errors, "Event should specify an event type");
            }
            if (eventNode.getDefaultOutgoingConnections().isEmpty()) {
                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() + "'"));
        }
    }
}