@Override
public Void execute(CommandContext commandContext) {
if (currentTaskEntity != null) {
ExecutionEntity execution =
commandContext
.getExecutionEntityManager()
.findExecutionById(currentTaskEntity.getExecutionId());
execution.setActivity(activity);
execution.performOperation(AtomicOperation.TRANSITION_CREATE_SCOPE);
if (variables != null) {
if (currentTaskEntity.getExecutionId() != null) {
currentTaskEntity.setExecutionVariables(variables);
} else {
currentTaskEntity.setVariables(variables);
}
}
// 删除当前的任务，不能删除当前正在执行的任务，所以要先清除掉关联
Context.getCommandContext()
.getTaskEntityManager()
.deleteTask(currentTaskEntity, TaskEntity.DELETE_REASON_DELETED, false);
}
return null;
}
public void handleEvent(
EventSubscriptionEntity eventSubscription, Object payload, CommandContext commandContext) {
String configuration = eventSubscription.getConfiguration();
if (configuration == null) {
throw new ActivitiException(
"Compensating execution not set for compensate event subscription with id "
+ eventSubscription.getId());
}
ExecutionEntity compensatingExecution =
commandContext.getExecutionEntityManager().findExecutionById(configuration);
ActivityImpl compensationHandler = eventSubscription.getActivity();
if ((compensationHandler.getProperty(BpmnParse.PROPERTYNAME_IS_FOR_COMPENSATION) == null
|| !(Boolean)
compensationHandler.getProperty(BpmnParse.PROPERTYNAME_IS_FOR_COMPENSATION))
&& compensationHandler.isScope()) {
// descend into scope:
List<CompensateEventSubscriptionEntity> eventsForThisScope =
compensatingExecution.getCompensateEventSubscriptions();
ScopeUtil.throwCompensationEvent(eventsForThisScope, compensatingExecution, false);
} else {
try {
if (commandContext.getProcessEngineConfiguration().getEventDispatcher().isEnabled()) {
commandContext
.getProcessEngineConfiguration()
.getEventDispatcher()
.dispatchEvent(
ActivitiEventBuilder.createActivityEvent(
ActivitiEventType.ACTIVITY_COMPENSATE,
compensationHandler.getId(),
compensatingExecution.getId(),
compensatingExecution.getProcessInstanceId(),
compensatingExecution.getProcessDefinitionId()));
}
compensatingExecution.setActivity(compensationHandler);
// executing the atomic operation makes sure activity start events are fired
compensatingExecution.performOperation(AtomicOperation.ACTIVITY_START);
} catch (Exception e) {
throw new ActivitiException(
"Error while handling compensation event " + eventSubscription, e);
}
}
}