public virtual object Execute(ICommandContext commandContext)
{
IEventSubscriptionEntityManager eventSubscriptionEntityManager = commandContext.EventSubscriptionEntityManager;
IList <ISignalEventSubscriptionEntity> signalEvents;
if (executionId is null)
{
signalEvents = eventSubscriptionEntityManager.FindSignalEventSubscriptionsByEventName(eventName, tenantId);
}
else
{
IExecutionEntity execution = commandContext.ExecutionEntityManager.FindById <IExecutionEntity>(executionId);
if (execution == null)
{
throw new ActivitiObjectNotFoundException("Cannot find execution with id '" + executionId + "'", typeof(IExecution));
}
if (execution.Suspended)
{
throw new ActivitiException("Cannot throw signal event '" + eventName + "' because execution '" + executionId + "' is suspended");
}
signalEvents = eventSubscriptionEntityManager.FindSignalEventSubscriptionsByNameAndExecution(eventName, executionId);
if (signalEvents.Count == 0)
{
throw new ActivitiException("Execution '" + executionId + "' has not subscribed to a signal event with name '" + eventName + "'.");
}
}
foreach (ISignalEventSubscriptionEntity signalEventSubscriptionEntity in signalEvents)
{
// We only throw the event to globally scoped signals.
// Process instance scoped signals must be thrown within the process itself
if (signalEventSubscriptionEntity.GlobalScoped)
{
Context.ProcessEngineConfiguration.EventDispatcher.DispatchEvent(ActivitiEventBuilder.CreateSignalEvent(ActivitiEventType.ACTIVITY_SIGNALED, signalEventSubscriptionEntity.ActivityId, eventName, payload, signalEventSubscriptionEntity.ExecutionId, signalEventSubscriptionEntity.ProcessInstanceId, signalEventSubscriptionEntity.ProcessDefinitionId));
eventSubscriptionEntityManager.EventReceived(signalEventSubscriptionEntity, payload, async);
}
}
return(null);
}
