Examples of org.camunda.bpm.engine.impl.util.xml.Element

Package org.camunda.bpm.engine.impl.util.xml

Examples of org.camunda.bpm.engine.impl.util.xml.Element

org.camunda.bpm.engine.impl.util.xml.Element
Represents one XML element. @author Tom Baeyens @author Joram Barrez




  public List<FieldDeclaration> parseFieldDeclarations(Element element) {
    List<FieldDeclaration> fieldDeclarations = new ArrayList<FieldDeclaration>();


    Element elementWithFieldInjections = element.element("extensionElements");
    if (elementWithFieldInjections == null) { // Custom extensions will just
                                              // have the <field.. as a
                                              // subelement
      elementWithFieldInjections = element;
    }
    List<Element> fieldDeclarationElements = elementWithFieldInjections.elementsNS(BpmnParser.ACTIVITI_BPMN_EXTENSIONS_NS, "field");
    if (fieldDeclarationElements != null && !fieldDeclarationElements.isEmpty()) {


      for (Element fieldDeclarationElement : fieldDeclarationElements) {
        FieldDeclaration fieldDeclaration = parseFieldDeclaration(element, fieldDeclarationElement);
        if (fieldDeclaration != null) {

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  protected String getStringValueFromAttributeOrElement(String attributeName, String elementName, Element element) {
    String value = null;


    String attributeValue = element.attribute(attributeName);
    Element childElement = element.elementNS(BpmnParser.ACTIVITI_BPMN_EXTENSIONS_NS, elementName);
    String stringElementText = null;


    if (attributeValue != null && childElement != null) {
      addError("Can't use attribute '" + attributeName + "' and element '" + elementName + "' together, only use one", element);
    } else if (childElement != null) {
      stringElementText = childElement.getText();
      if (stringElementText == null || stringElementText.length() == 0) {
        addError("No valid value found in attribute '" + attributeName + "' nor element '" + elementName + "'", element);
      } else {
        // Use text of element
        value = stringElementText;

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    List<Element> humanPerformerElements = taskElement.elements(HUMAN_PERFORMER);


    if (humanPerformerElements.size() > 1) {
      addError("Invalid task definition: multiple " + HUMAN_PERFORMER + " sub elements defined for " + taskDefinition.getNameExpression(), taskElement);
    } else if (humanPerformerElements.size() == 1) {
      Element humanPerformerElement = humanPerformerElements.get(0);
      if (humanPerformerElement != null) {
        parseHumanPerformerResourceAssignment(humanPerformerElement, taskDefinition);
      }
    }
  }

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      parsePotentialOwnerResourceAssignment(potentialOwnerElement, taskDefinition);
    }
  }


  protected void parseHumanPerformerResourceAssignment(Element performerElement, TaskDefinition taskDefinition) {
    Element raeElement = performerElement.element(RESOURCE_ASSIGNMENT_EXPR);
    if (raeElement != null) {
      Element feElement = raeElement.element(FORMAL_EXPRESSION);
      if (feElement != null) {
        taskDefinition.setAssigneeExpression(expressionManager.createExpression(feElement.getText()));
      }
    }
  }

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      }
    }
  }


  protected void parsePotentialOwnerResourceAssignment(Element performerElement, TaskDefinition taskDefinition) {
    Element raeElement = performerElement.element(RESOURCE_ASSIGNMENT_EXPR);
    if (raeElement != null) {
      Element feElement = raeElement.element(FORMAL_EXPRESSION);
      if (feElement != null) {
        List<String> assignmentExpressions = parseCommaSeparatedList(feElement.getText());
        for (String assignmentExpression : assignmentExpressions) {
          assignmentExpression = assignmentExpression.trim();
          if (assignmentExpression.startsWith(USER_PREFIX)) {
            String userAssignementId = getAssignmentId(assignmentExpression, USER_PREFIX);
            taskDefinition.addCandidateUserIdExpression(expressionManager.createExpression(userAssignementId));

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    }
    return result;
  }


  protected void parseTaskListeners(Element userTaskElement, TaskDefinition taskDefinition) {
    Element extentionsElement = userTaskElement.element("extensionElements");
    if (extentionsElement != null) {
      List<Element> taskListenerElements = extentionsElement.elementsNS(BpmnParser.ACTIVITI_BPMN_EXTENSIONS_NS, "taskListener");
      for (Element taskListenerElement : taskListenerElements) {
        String eventName = taskListenerElement.attribute("event");
        if (eventName != null) {
          if (TaskListener.EVENTNAME_CREATE.equals(eventName) || TaskListener.EVENTNAME_ASSIGNMENT.equals(eventName)
                  || TaskListener.EVENTNAME_COMPLETE.equals(eventName) || TaskListener.EVENTNAME_DELETE.equals(eventName)) {

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    TaskListener taskListener = null;


    String className = taskListenerElement.attribute("class");
    String expression = taskListenerElement.attribute("expression");
    String delegateExpression = taskListenerElement.attribute("delegateExpression");
    Element scriptElement = taskListenerElement.elementNS(BpmnParser.ACTIVITI_BPMN_EXTENSIONS_NS, "script");


    if (className != null) {
      taskListener = new ClassDelegateTaskListener(className, parseFieldDeclarations(taskListenerElement));
    } else if (expression != null) {
      taskListener = new ExpressionTaskListener(expressionManager.createExpression(expression));

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   */
  public void parseEndEvents(Element parentElement, ScopeImpl scope) {
    for (Element endEventElement : parentElement.elements("endEvent")) {
      ActivityImpl activity = createActivityOnScope(endEventElement, scope);


      Element errorEventDefinition = endEventElement.element("errorEventDefinition");
      Element cancelEventDefinition = endEventElement.element("cancelEventDefinition");
      Element terminateEventDefinition = endEventElement.element("terminateEventDefinition");
      Element messageEventDefinitionElement = endEventElement.element("messageEventDefinition");
      Element signalEventDefinition = endEventElement.element("signalEventDefinition");
      if (errorEventDefinition != null) { // error end event
        String errorRef = errorEventDefinition.attribute("errorRef");
        if (errorRef == null || "".equals(errorRef)) {
          addError("'errorRef' attribute is mandatory on error end event", errorEventDefinition);
        } else {

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      // Catch event behavior is the same for most types
      ActivityBehavior behavior = null;


      // Depending on the sub-element definition, the correct activityBehavior
      // parsing is selected
      Element timerEventDefinition = boundaryEventElement.element("timerEventDefinition");
      Element errorEventDefinition = boundaryEventElement.element("errorEventDefinition");
      Element signalEventDefinition = boundaryEventElement.element("signalEventDefinition");
      Element cancelEventDefinition = boundaryEventElement.element("cancelEventDefinition");
      Element compensateEventDefinition = boundaryEventElement.element("compensateEventDefinition");
      Element messageEventDefinition = boundaryEventElement.element("messageEventDefinition");


      behavior = new BoundaryEventActivityBehavior();
      if (timerEventDefinition != null) {
        parseBoundaryTimerEventDefinition(timerEventDefinition, interrupting, nestedActivity);

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    return timerDeclaration;
  }


  protected Expression parseExpression(Element parent, String name) {
    Element value = parent.element(name);
    if (value != null) {
      String expressionText = value.getText().trim();
      return expressionManager.createExpression(expressionText);
    }
    return null;
  }

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