Examples with MessageFlow de.hpi.bpt.scylla.model.process.node.MessageFlow used on opensource projects

Example 1 with MessageFlow

use of de.hpi.bpt.scylla.model.process.node.MessageFlow in project scylla by bptlab.

the class ProcessModelParser method parse.

@Override
public ProcessModel parse(Element rootElement) throws ScyllaValidationException {
    Namespace bpmnNamespace = rootElement.getNamespace();
    List<Element> processElements = rootElement.getChildren("process", bpmnNamespace);
    if (processElements.isEmpty()) {
        throw new ScyllaValidationException("No process in file.");
    }
    // pool references to process models
    Map<String, String> processIdToPoolName = new HashMap<String, String>();
    Map<String, MessageFlow> messageFlows = new HashMap<String, MessageFlow>();
    Element collaboration = rootElement.getChild("collaboration", bpmnNamespace);
    if (collaboration != null) {
        for (Element el : collaboration.getChildren()) {
            String elementName = el.getName();
            if (elementName.equals("participant")) {
                if (el.getAttributeValue("processRef") != null) {
                    String participantName = el.getAttributeValue("name");
                    String processId = el.getAttributeValue("processRef");
                    processIdToPoolName.put(processId, participantName);
                }
            } else if (elementName.equals("messageFlow")) {
                String id = el.getAttributeValue("id");
                String sourceRef = el.getAttributeValue("sourceRef");
                String targetRef = el.getAttributeValue("targetRef");
                MessageFlow messageFlow = new MessageFlow(id, sourceRef, targetRef);
                messageFlows.put(id, messageFlow);
            } else {
                DebugLogger.log("Element " + el.getName() + " of collaboration not supported.");
            }
        }
    }
    Map<String, ProcessModel> processModels = new HashMap<String, ProcessModel>();
    for (Element process : processElements) {
        ProcessModel processModel = parseProcess(process, bpmnNamespace, false, commonProcessElements);
        String processId = processModel.getId();
        if (processIdToPoolName.containsKey(processId)) {
            String participant = processIdToPoolName.get(processId);
            processModel.setParticipant(participant);
        }
        processModels.put(processId, processModel);
    }
    if (processModels.size() == 1) {
        return processModels.values().iterator().next();
    } else {
        try {
            Set<ProcessModel> processModelsTriggeredInCollaboration = new HashSet<ProcessModel>();
            ProcessModel processModelTriggeredExternally = null;
            for (String processId : processModels.keySet()) {
                ProcessModel pm = processModels.get(processId);
                int startNodeId = pm.getStartNode();
                String identifierOfStartNode = pm.getIdentifiers().get(startNodeId);
                boolean isTriggeredInCollaboration = false;
                for (MessageFlow mf : messageFlows.values()) {
                    if (mf.getTargetRef().equals(identifierOfStartNode)) {
                        isTriggeredInCollaboration = true;
                        break;
                    }
                }
                if (isTriggeredInCollaboration) {
                    processModelsTriggeredInCollaboration.add(pm);
                } else {
                    if (processModelTriggeredExternally != null) {
                        throw new ScyllaValidationException("BPMN file contains multiple process models that are triggered externally.");
                    }
                    processModelTriggeredExternally = pm;
                }
            }
            processModelTriggeredExternally.setProcessModelsInCollaboration(processModelsTriggeredInCollaboration);
            return processModelTriggeredExternally;
        } catch (NodeNotFoundException | MultipleStartNodesException | NoStartNodeException e) {
            e.printStackTrace();
            throw new ScyllaValidationException(e.getMessage());
        }
    }
}