Examples with Signal org.activiti.bpmn.model.Signal used on opensource projects

Example 1 with Signal

use of org.activiti.bpmn.model.Signal in project Activiti by Activiti.

the class SignalEventDefinitionParseHandler method executeParse.

protected void executeParse(BpmnParse bpmnParse, SignalEventDefinition signalDefinition) {
    Signal signal = null;
    if (bpmnParse.getBpmnModel().containsSignalId(signalDefinition.getSignalRef())) {
        signal = bpmnParse.getBpmnModel().getSignal(signalDefinition.getSignalRef());
        String signalName = signal.getName();
        signalDefinition.setSignalRef(signalName);
    }
    if (signal == null) {
        return;
    }
    ActivityImpl activity = bpmnParse.getCurrentActivity();
    if (bpmnParse.getCurrentFlowElement() instanceof StartEvent) {
        activity.setProperty("type", "signalStartEvent");
        EventSubscriptionDeclaration eventSubscriptionDeclaration = new EventSubscriptionDeclaration(signalDefinition.getSignalRef(), "signal");
        eventSubscriptionDeclaration.setActivityId(activity.getId());
        eventSubscriptionDeclaration.setStartEvent(true);
        addEventSubscriptionDeclaration(bpmnParse, eventSubscriptionDeclaration, signalDefinition, bpmnParse.getCurrentScope());
    } else if (bpmnParse.getCurrentFlowElement() instanceof IntermediateCatchEvent) {
        activity.setProperty("type", "intermediateSignalCatch");
        EventSubscriptionDeclaration eventSubscriptionDeclaration = new EventSubscriptionDeclaration(signalDefinition.getSignalRef(), "signal");
        if (signal.getScope() != null) {
            eventSubscriptionDeclaration.setConfiguration(signal.getScope());
        }
        if (getPrecedingEventBasedGateway(bpmnParse, (IntermediateCatchEvent) bpmnParse.getCurrentFlowElement()) != null) {
            eventSubscriptionDeclaration.setActivityId(activity.getId());
            addEventSubscriptionDeclaration(bpmnParse, eventSubscriptionDeclaration, signalDefinition, activity.getParent());
        } else {
            activity.setScope(true);
            addEventSubscriptionDeclaration(bpmnParse, eventSubscriptionDeclaration, signalDefinition, activity);
        }
    } else if (bpmnParse.getCurrentFlowElement() instanceof ThrowEvent) {
        ThrowEvent throwEvent = (ThrowEvent) bpmnParse.getCurrentFlowElement();
        activity.setProperty("type", "intermediateSignalThrow");
        EventSubscriptionDeclaration eventSubscriptionDeclaration = new EventSubscriptionDeclaration(signalDefinition.getSignalRef(), "signal");
        eventSubscriptionDeclaration.setAsync(signalDefinition.isAsync());
        activity.setActivityBehavior(bpmnParse.getActivityBehaviorFactory().createIntermediateThrowSignalEventActivityBehavior(throwEvent, signal, eventSubscriptionDeclaration));
    } else if (bpmnParse.getCurrentFlowElement() instanceof BoundaryEvent) {
        BoundaryEvent boundaryEvent = (BoundaryEvent) bpmnParse.getCurrentFlowElement();
        boolean interrupting = boundaryEvent.isCancelActivity();
        activity.setActivityBehavior(bpmnParse.getActivityBehaviorFactory().createBoundaryEventActivityBehavior(boundaryEvent, interrupting, activity));
        activity.setProperty("type", "boundarySignal");
        EventSubscriptionDeclaration eventSubscriptionDeclaration = new EventSubscriptionDeclaration(signalDefinition.getSignalRef(), "signal");
        eventSubscriptionDeclaration.setActivityId(activity.getId());
        if (signal.getScope() != null) {
            eventSubscriptionDeclaration.setConfiguration(signal.getScope());
        }
        addEventSubscriptionDeclaration(bpmnParse, eventSubscriptionDeclaration, signalDefinition, activity.getParent());
        if (activity.getParent() instanceof ActivityImpl) {
            ((ActivityImpl) activity.getParent()).setScope(true);
        }
    }
}

Example 2 with Signal

use of org.activiti.bpmn.model.Signal in project Activiti by Activiti.

the class FeedbackStepDefinitionConverter method createProcessArtifact.

@Override
protected Map<String, BaseElement> createProcessArtifact(FeedbackStepDefinition feedbackStepDefinition, WorkflowDefinitionConversion conversion) {
    // See feedback-step.png in the resource folder to get a graphical understanding of the conversion below
    Map<String, BaseElement> processElements = new HashMap<String, BaseElement>();
    // The first user task, responsible for configuring the feedback
    UserTask selectPeopleUserTask = createSelectPeopleUserTask(feedbackStepDefinition, conversion, processElements);
    // Parallel gateways (forking/joining)
    ParallelGateway fork = createForkParallelGateway(conversion, processElements);
    addSequenceFlow(conversion, selectPeopleUserTask, fork);
    // Gather feedback user task for the initiator of the feedback step
    UserTask gatherFeedbackUserTask = createGatherFeedbackUserTask(feedbackStepDefinition, conversion, processElements);
    addSequenceFlow(conversion, fork, gatherFeedbackUserTask);
    // Global signal event
    Signal signal = createSignalDeclaration(conversion);
    // Signal throw event after the gather feedback task
    ThrowEvent signalThrowEvent = createSignalThrow(conversion, signal);
    addSequenceFlow(conversion, gatherFeedbackUserTask, signalThrowEvent);
    // Povide feedback step
    UserTask feedbackTask = createFeedbackUserTask(feedbackStepDefinition, conversion, processElements);
    addSequenceFlow(conversion, fork, feedbackTask);
    // Boundary signal catch to shut down all tasks if the 'gather feedback' task is completed
    BoundaryEvent boundarySignalCatch = createBoundarySignalCatch(conversion, signal, feedbackTask);
    // Exclusive gateway after the feedback task, needed to correctly merge the sequence flow
    // such that the joining parallel gateway has exactly two incoming sequence flow
    ExclusiveGateway mergingExclusiveGateway = createMergingExclusiveGateway(conversion);
    addSequenceFlow(conversion, feedbackTask, mergingExclusiveGateway);
    addSequenceFlow(conversion, boundarySignalCatch, mergingExclusiveGateway);
    // Parallel gateway that will join  it all together
    ParallelGateway join = createJoinParallelGateway(conversion, processElements);
    addSequenceFlow(conversion, signalThrowEvent, join);
    addSequenceFlow(conversion, mergingExclusiveGateway, join);
    // Set the last activity id, such that next steps can connect correctly
    conversion.setLastActivityId(join.getId());
    return processElements;
}

Example 3 with Signal

use of org.activiti.bpmn.model.Signal in project Activiti by Activiti.

the class FeedbackStepDefinitionConverter method createSignalDeclaration.

protected Signal createSignalDeclaration(WorkflowDefinitionConversion conversion) {
    Signal signal = new Signal();
    String uniqueSignalId = "signal-" + UUID.randomUUID().toString();
    signal.setId(uniqueSignalId);
    signal.setName(uniqueSignalId);
    signal.setScope(Signal.SCOPE_PROCESS_INSTANCE);
    conversion.getBpmnModel().addSignal(signal);
    return signal;
}

Example 4 with Signal

use of org.activiti.bpmn.model.Signal in project Activiti by Activiti.

the class SignalAndMessageDefinitionExport method writeSignalsAndMessages.

public static void writeSignalsAndMessages(BpmnModel model, XMLStreamWriter xtw) throws Exception {
    for (Process process : model.getProcesses()) {
        for (FlowElement flowElement : process.findFlowElementsOfType(Event.class)) {
            Event event = (Event) flowElement;
            if (!event.getEventDefinitions().isEmpty()) {
                EventDefinition eventDefinition = event.getEventDefinitions().get(0);
                if (eventDefinition instanceof SignalEventDefinition) {
                    SignalEventDefinition signalEvent = (SignalEventDefinition) eventDefinition;
                    if (StringUtils.isNotEmpty(signalEvent.getSignalRef())) {
                        if (model.containsSignalId(signalEvent.getSignalRef()) == false) {
                            Signal signal = new Signal(signalEvent.getSignalRef(), signalEvent.getSignalRef());
                            model.addSignal(signal);
                        }
                    }
                } else if (eventDefinition instanceof MessageEventDefinition) {
                    MessageEventDefinition messageEvent = (MessageEventDefinition) eventDefinition;
                    if (StringUtils.isNotEmpty(messageEvent.getMessageRef())) {
                        if (model.containsMessageId(messageEvent.getMessageRef()) == false) {
                            Message message = new Message(messageEvent.getMessageRef(), messageEvent.getMessageRef(), null);
                            model.addMessage(message);
                        }
                    }
                }
            }
        }
    }
    for (Signal signal : model.getSignals()) {
        xtw.writeStartElement(ELEMENT_SIGNAL);
        xtw.writeAttribute(ATTRIBUTE_ID, signal.getId());
        xtw.writeAttribute(ATTRIBUTE_NAME, signal.getName());
        if (signal.getScope() != null) {
            xtw.writeAttribute(ACTIVITI_EXTENSIONS_NAMESPACE, ATTRIBUTE_SCOPE, signal.getScope());
        }
        xtw.writeEndElement();
    }
    for (Message message : model.getMessages()) {
        xtw.writeStartElement(ELEMENT_MESSAGE);
        String messageId = message.getId();
        // remove the namespace from the message id if set
        if (model.getTargetNamespace() != null && messageId.startsWith(model.getTargetNamespace())) {
            messageId = messageId.replace(model.getTargetNamespace(), "");
            messageId = messageId.replaceFirst(":", "");
        } else {
            for (String prefix : model.getNamespaces().keySet()) {
                String namespace = model.getNamespace(prefix);
                if (messageId.startsWith(namespace)) {
                    messageId = messageId.replace(model.getTargetNamespace(), "");
                    messageId = prefix + messageId;
                }
            }
        }
        xtw.writeAttribute(ATTRIBUTE_ID, messageId);
        if (StringUtils.isNotEmpty(message.getName())) {
            xtw.writeAttribute(ATTRIBUTE_NAME, message.getName());
        }
        if (StringUtils.isNotEmpty(message.getItemRef())) {
            // replace the namespace by the right prefix
            String itemRef = message.getItemRef();
            for (String prefix : model.getNamespaces().keySet()) {
                String namespace = model.getNamespace(prefix);
                if (itemRef.startsWith(namespace)) {
                    if (prefix.isEmpty()) {
                        itemRef = itemRef.replace(namespace + ":", "");
                    } else {
                        itemRef = itemRef.replace(namespace, prefix);
                    }
                    break;
                }
            }
            xtw.writeAttribute(ATTRIBUTE_ITEM_REF, itemRef);
        }
        xtw.writeEndElement();
    }
}

Example 5 with Signal

use of org.activiti.bpmn.model.Signal in project Activiti by Activiti.

the class BpmnJsonConverter method convertToBpmnModel.

public BpmnModel convertToBpmnModel(JsonNode modelNode) {
    BpmnModel bpmnModel = new BpmnModel();
    bpmnModel.setTargetNamespace("http://activiti.org/test");
    Map<String, JsonNode> shapeMap = new HashMap<String, JsonNode>();
    Map<String, JsonNode> sourceRefMap = new HashMap<String, JsonNode>();
    Map<String, JsonNode> edgeMap = new HashMap<String, JsonNode>();
    Map<String, List<JsonNode>> sourceAndTargetMap = new HashMap<String, List<JsonNode>>();
    readShapeDI(modelNode, 0, 0, shapeMap, sourceRefMap, bpmnModel);
    filterAllEdges(modelNode, edgeMap, sourceAndTargetMap, shapeMap, sourceRefMap);
    readEdgeDI(edgeMap, sourceAndTargetMap, bpmnModel);
    ArrayNode shapesArrayNode = (ArrayNode) modelNode.get(EDITOR_CHILD_SHAPES);
    if (shapesArrayNode == null || shapesArrayNode.size() == 0)
        return bpmnModel;
    boolean nonEmptyPoolFound = false;
    Map<String, Lane> elementInLaneMap = new HashMap<String, Lane>();
    // first create the pool structure
    for (JsonNode shapeNode : shapesArrayNode) {
        String stencilId = BpmnJsonConverterUtil.getStencilId(shapeNode);
        if (STENCIL_POOL.equals(stencilId)) {
            Pool pool = new Pool();
            pool.setId(BpmnJsonConverterUtil.getElementId(shapeNode));
            pool.setName(JsonConverterUtil.getPropertyValueAsString(PROPERTY_NAME, shapeNode));
            pool.setProcessRef(JsonConverterUtil.getPropertyValueAsString(PROPERTY_PROCESS_ID, shapeNode));
            pool.setExecutable(JsonConverterUtil.getPropertyValueAsBoolean(PROPERTY_PROCESS_EXECUTABLE, shapeNode, true));
            bpmnModel.getPools().add(pool);
            Process process = new Process();
            process.setId(pool.getProcessRef());
            process.setName(pool.getName());
            process.setExecutable(pool.isExecutable());
            bpmnModel.addProcess(process);
            ArrayNode laneArrayNode = (ArrayNode) shapeNode.get(EDITOR_CHILD_SHAPES);
            for (JsonNode laneNode : laneArrayNode) {
                // should be a lane, but just check to be certain
                String laneStencilId = BpmnJsonConverterUtil.getStencilId(laneNode);
                if (STENCIL_LANE.equals(laneStencilId)) {
                    nonEmptyPoolFound = true;
                    Lane lane = new Lane();
                    lane.setId(BpmnJsonConverterUtil.getElementId(laneNode));
                    lane.setName(JsonConverterUtil.getPropertyValueAsString(PROPERTY_NAME, laneNode));
                    lane.setParentProcess(process);
                    process.getLanes().add(lane);
                    processJsonElements(laneNode.get(EDITOR_CHILD_SHAPES), modelNode, lane, shapeMap, bpmnModel);
                    if (CollectionUtils.isNotEmpty(lane.getFlowReferences())) {
                        for (String elementRef : lane.getFlowReferences()) {
                            elementInLaneMap.put(elementRef, lane);
                        }
                    }
                }
            }
        }
    }
    // Signal Definitions exist on the root level
    JsonNode signalDefinitionNode = BpmnJsonConverterUtil.getProperty(PROPERTY_SIGNAL_DEFINITIONS, modelNode);
    signalDefinitionNode = BpmnJsonConverterUtil.validateIfNodeIsTextual(signalDefinitionNode);
    // no idea why this needs to be done twice ..
    signalDefinitionNode = BpmnJsonConverterUtil.validateIfNodeIsTextual(signalDefinitionNode);
    if (signalDefinitionNode != null) {
        if (signalDefinitionNode instanceof ArrayNode) {
            ArrayNode signalDefinitionArrayNode = (ArrayNode) signalDefinitionNode;
            Iterator<JsonNode> signalDefinitionIterator = signalDefinitionArrayNode.iterator();
            while (signalDefinitionIterator.hasNext()) {
                JsonNode signalDefinitionJsonNode = signalDefinitionIterator.next();
                String signalId = signalDefinitionJsonNode.get(PROPERTY_SIGNAL_DEFINITION_ID).asText();
                String signalName = signalDefinitionJsonNode.get(PROPERTY_SIGNAL_DEFINITION_NAME).asText();
                String signalScope = signalDefinitionJsonNode.get(PROPERTY_SIGNAL_DEFINITION_SCOPE).asText();
                Signal signal = new Signal();
                signal.setId(signalId);
                signal.setName(signalName);
                signal.setScope((signalScope.toLowerCase().equals("processinstance")) ? Signal.SCOPE_PROCESS_INSTANCE : Signal.SCOPE_GLOBAL);
                bpmnModel.addSignal(signal);
            }
        }
    }
    if (nonEmptyPoolFound == false) {
        Process process = new Process();
        bpmnModel.getProcesses().add(process);
        process.setId(BpmnJsonConverterUtil.getPropertyValueAsString(PROPERTY_PROCESS_ID, modelNode));
        process.setName(BpmnJsonConverterUtil.getPropertyValueAsString(PROPERTY_NAME, modelNode));
        String namespace = BpmnJsonConverterUtil.getPropertyValueAsString(PROPERTY_PROCESS_NAMESPACE, modelNode);
        if (StringUtils.isNotEmpty(namespace)) {
            bpmnModel.setTargetNamespace(namespace);
        }
        process.setDocumentation(BpmnJsonConverterUtil.getPropertyValueAsString(PROPERTY_DOCUMENTATION, modelNode));
        JsonNode processExecutableNode = JsonConverterUtil.getProperty(PROPERTY_PROCESS_EXECUTABLE, modelNode);
        if (processExecutableNode != null && StringUtils.isNotEmpty(processExecutableNode.asText())) {
            process.setExecutable(JsonConverterUtil.getPropertyValueAsBoolean(PROPERTY_PROCESS_EXECUTABLE, modelNode));
        }
        BpmnJsonConverterUtil.convertJsonToMessages(modelNode, bpmnModel);
        BpmnJsonConverterUtil.convertJsonToListeners(modelNode, process);
        JsonNode eventListenersNode = BpmnJsonConverterUtil.getProperty(PROPERTY_EVENT_LISTENERS, modelNode);
        if (eventListenersNode != null) {
            eventListenersNode = BpmnJsonConverterUtil.validateIfNodeIsTextual(eventListenersNode);
            BpmnJsonConverterUtil.parseEventListeners(eventListenersNode.get(PROPERTY_EVENTLISTENER_VALUE), process);
        }
        JsonNode processDataPropertiesNode = modelNode.get(EDITOR_SHAPE_PROPERTIES).get(PROPERTY_DATA_PROPERTIES);
        if (processDataPropertiesNode != null) {
            List<ValuedDataObject> dataObjects = BpmnJsonConverterUtil.convertJsonToDataProperties(processDataPropertiesNode, process);
            process.setDataObjects(dataObjects);
            process.getFlowElements().addAll(dataObjects);
        }
        processJsonElements(shapesArrayNode, modelNode, process, shapeMap, bpmnModel);
    } else {
        // sequence flows are on root level so need additional parsing for pools
        for (JsonNode shapeNode : shapesArrayNode) {
            if (STENCIL_SEQUENCE_FLOW.equalsIgnoreCase(BpmnJsonConverterUtil.getStencilId(shapeNode)) || STENCIL_ASSOCIATION.equalsIgnoreCase(BpmnJsonConverterUtil.getStencilId(shapeNode))) {
                String sourceRef = BpmnJsonConverterUtil.lookForSourceRef(shapeNode.get(EDITOR_SHAPE_ID).asText(), modelNode.get(EDITOR_CHILD_SHAPES));
                if (sourceRef != null) {
                    Lane lane = elementInLaneMap.get(sourceRef);
                    SequenceFlowJsonConverter flowConverter = new SequenceFlowJsonConverter();
                    if (lane != null) {
                        flowConverter.convertToBpmnModel(shapeNode, modelNode, this, lane, shapeMap, bpmnModel);
                    } else {
                        flowConverter.convertToBpmnModel(shapeNode, modelNode, this, bpmnModel.getProcesses().get(0), shapeMap, bpmnModel);
                    }
                }
            }
        }
    }
    // sequence flows are now all on root level
    Map<String, SubProcess> subShapesMap = new HashMap<String, SubProcess>();
    for (Process process : bpmnModel.getProcesses()) {
        for (FlowElement flowElement : process.findFlowElementsOfType(SubProcess.class)) {
            SubProcess subProcess = (SubProcess) flowElement;
            fillSubShapes(subShapesMap, subProcess);
        }
        if (subShapesMap.size() > 0) {
            List<String> removeSubFlowsList = new ArrayList<String>();
            for (FlowElement flowElement : process.findFlowElementsOfType(SequenceFlow.class)) {
                SequenceFlow sequenceFlow = (SequenceFlow) flowElement;
                if (subShapesMap.containsKey(sequenceFlow.getSourceRef())) {
                    SubProcess subProcess = subShapesMap.get(sequenceFlow.getSourceRef());
                    if (subProcess.getFlowElement(sequenceFlow.getId()) == null) {
                        subProcess.addFlowElement(sequenceFlow);
                        removeSubFlowsList.add(sequenceFlow.getId());
                    }
                }
            }
            for (String flowId : removeSubFlowsList) {
                process.removeFlowElement(flowId);
            }
        }
    }
    Map<String, FlowWithContainer> allFlowMap = new HashMap<String, FlowWithContainer>();
    List<Gateway> gatewayWithOrderList = new ArrayList<Gateway>();
    // post handling of process elements
    for (Process process : bpmnModel.getProcesses()) {
        postProcessElements(process, process.getFlowElements(), edgeMap, bpmnModel, allFlowMap, gatewayWithOrderList);
    }
    // sort the sequence flows
    for (Gateway gateway : gatewayWithOrderList) {
        List<ExtensionElement> orderList = gateway.getExtensionElements().get("EDITOR_FLOW_ORDER");
        if (CollectionUtils.isNotEmpty(orderList)) {
            for (ExtensionElement orderElement : orderList) {
                String flowValue = orderElement.getElementText();
                if (StringUtils.isNotEmpty(flowValue)) {
                    if (allFlowMap.containsKey(flowValue)) {
                        FlowWithContainer flowWithContainer = allFlowMap.get(flowValue);
                        flowWithContainer.getFlowContainer().removeFlowElement(flowWithContainer.getSequenceFlow().getId());
                        flowWithContainer.getFlowContainer().addFlowElement(flowWithContainer.getSequenceFlow());
                    }
                }
            }
        }
        gateway.getExtensionElements().remove("EDITOR_FLOW_ORDER");
    }
    return bpmnModel;
}