Examples of org.activiti.engine.delegate.ExecutionListener

org.activiti.engine.delegate.ExecutionListener
Callback interface to be notified of execution events like starting a process instance, ending an activity instance or taking a transition. @author Tom Baeyens @author Joram Barrez

      transition.addExecutionListener(createExecutionListener(bpmnParse, activitiListener));
    }
  }
  
  protected ExecutionListener createExecutionListener(BpmnParse bpmnParse, ActivitiListener activitiListener) {
    ExecutionListener executionListener = null;
  
    if (ImplementationType.IMPLEMENTATION_TYPE_CLASS.equalsIgnoreCase(activitiListener.getImplementationType())) {
      executionListener = bpmnParse.getListenerFactory().createClassDelegateExecutionListener(activitiListener);  
    } else if (ImplementationType.IMPLEMENTATION_TYPE_EXPRESSION.equalsIgnoreCase(activitiListener.getImplementationType())) {
      executionListener = bpmnParse.getListenerFactory().createExpressionExecutionListener(activitiListener);

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    int executionListenerIndex = execution.getExecutionListenerIndex();
    
    if (executionListeners.size()>executionListenerIndex) {
      execution.setEventName(org.activiti.engine.impl.pvm.PvmEvent.EVENTNAME_TAKE);
      execution.setEventSource(transition);
      ExecutionListener listener = executionListeners.get(executionListenerIndex);
      try {
        listener.notify(execution);
      } catch (RuntimeException e) {
        throw e;
      } catch (Exception e) {
        throw new PvmException("couldn't execute event listener : "+e.getMessage(), e);
      }

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    int executionListenerIndex = execution.getExecutionListenerIndex();
    
    if (exectionListeners.size()>executionListenerIndex) {
      execution.setEventName(getEventName());
      execution.setEventSource(scope);
      ExecutionListener listener = exectionListeners.get(executionListenerIndex);
      try {
        listener.notify(execution);
      } catch (RuntimeException e) {
        throw e;
      } catch (Exception e) {
        throw new PvmException("couldn't execute event listener : "+e.getMessage(), e);
      }

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    int executionListenerIndex = execution.getExecutionListenerIndex();
    
    if (executionListeners.size()>executionListenerIndex) {
      execution.setEventName(org.activiti.engine.impl.pvm.PvmEvent.EVENTNAME_TAKE);
      execution.setEventSource(transition);
      ExecutionListener listener = executionListeners.get(executionListenerIndex);
      try {
        listener.notify(execution);
      } catch (RuntimeException e) {
        throw e;
      } catch (Exception e) {
        throw new PvmException("couldn't execute event listener : "+e.getMessage(), e);
      }

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    if (extentionsElement != null) {
      List<Element> listenerElements = extentionsElement.elementsNS(BpmnParser.ACTIVITI_BPMN_EXTENSIONS_NS, "executionListener");
      for (Element listenerElement : listenerElements) {
        String eventName = listenerElement.attribute("event");
        if (isValidEventNameForScope(eventName, listenerElement)) {
          ExecutionListener listener = parseExecutionListener(listenerElement);
          if (listener != null) {
            scope.addExecutionListener(eventName, listener);
          }
        }
      }

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  public void parseExecutionListenersOnTransition(Element activitiElement, TransitionImpl activity) {
    Element extentionsElement = activitiElement.element("extensionElements");
    if (extentionsElement != null) {
      List<Element> listenerElements = extentionsElement.elementsNS(BpmnParser.ACTIVITI_BPMN_EXTENSIONS_NS, "executionListener");
      for (Element listenerElement : listenerElements) {
        ExecutionListener listener = parseExecutionListener(listenerElement);
        if (listener != null) {
          // Since a transition only fires event 'take', we don't parse the
          // eventName, it is ignored
          activity.addExecutionListener(listener);
        }

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   * 
   * @param executionListenerElement
   *          the XML element containing the executionListener definition.
   */
  public ExecutionListener parseExecutionListener(Element executionListenerElement) {
    ExecutionListener executionListener = null;


    String className = executionListenerElement.attribute("class");
    String expression = executionListenerElement.attribute("expression");
    String delegateExpression = executionListenerElement.attribute("delegateExpression");

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        return taskListeners.get(id);
    }


    @Override
    public void registerExecutionListener(@Nonnull String id, @Nonnull ExecutionListener executionListener) {
        final ExecutionListener existing = executionListeners.put(id, executionListener);
        if (existing != null) {
            throw new IllegalStateException(String.format("overwrite of existing execution listener using id <%s>", id));
        }
    }

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 */
public class DelegateExecutionListener extends AbstractDelegate implements ExecutionListener {
    @Override
    public void notify(DelegateExecution execution) throws Exception {
        final String componentId = getComponentId(execution);
        final ExecutionListener listener = getWorkflowTaskRegistry().findExecutionListener(componentId);


        Assert.notNull(listener, String.format("No ExecutionListener found for componentId %s.", componentId));


        listener.notify(execution);
    }

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