protected void removeExistingSignalEventSubScription(
ProcessDefinitionEntity processDefinition, ProcessDefinitionEntity latestProcessDefinition) {
if (latestProcessDefinition != null) {
CommandContext commandContext = Context.getCommandContext();
List<EventSubscriptionEntity> subscriptionsToDisable =
commandContext
.getEventSubscriptionEntityManager()
.findEventSubscriptionsByTypeAndProcessDefinitionId(
SignalEventHandler.EVENT_HANDLER_TYPE,
latestProcessDefinition.getId(),
latestProcessDefinition.getTenantId());
for (EventSubscriptionEntity eventSubscriptionEntity : subscriptionsToDisable) {
eventSubscriptionEntity.delete();
}
}
}
@SuppressWarnings("unchecked")
protected void addMessageEventSubscriptions(ProcessDefinitionEntity processDefinition) {
CommandContext commandContext = Context.getCommandContext();
List<EventSubscriptionDeclaration> eventDefinitions =
(List<EventSubscriptionDeclaration>)
processDefinition.getProperty(BpmnParse.PROPERTYNAME_EVENT_SUBSCRIPTION_DECLARATION);
if (eventDefinitions != null) {
Set<String> messageNames = new HashSet<String>();
for (EventSubscriptionDeclaration eventDefinition : eventDefinitions) {
if (eventDefinition.getEventType().equals("message") && eventDefinition.isStartEvent()) {
if (!messageNames.contains(eventDefinition.getEventName())) {
messageNames.add(eventDefinition.getEventName());
} else {
throw new ActivitiException(
"Cannot deploy process definition '"
+ processDefinition.getResourceName()
+ "': there are multiple message event subscriptions for the message with name '"
+ eventDefinition.getEventName()
+ "'.");
}
// look for subscriptions for the same name in db:
List<EventSubscriptionEntity> subscriptionsForSameMessageName =
commandContext
.getEventSubscriptionEntityManager()
.findEventSubscriptionsByName(
MessageEventHandler.EVENT_HANDLER_TYPE,
eventDefinition.getEventName(),
processDefinition.getTenantId());
// also look for subscriptions created in the session:
List<MessageEventSubscriptionEntity> cachedSubscriptions =
commandContext.getDbSqlSession().findInCache(MessageEventSubscriptionEntity.class);
for (MessageEventSubscriptionEntity cachedSubscription : cachedSubscriptions) {
if (eventDefinition.getEventName().equals(cachedSubscription.getEventName())
&& !subscriptionsForSameMessageName.contains(cachedSubscription)) {
subscriptionsForSameMessageName.add(cachedSubscription);
}
}
// remove subscriptions deleted in the same command
subscriptionsForSameMessageName =
commandContext
.getDbSqlSession()
.pruneDeletedEntities(subscriptionsForSameMessageName);
for (EventSubscriptionEntity eventSubscriptionEntity : subscriptionsForSameMessageName) {
// throw exception only if there's already a subscription as start event
// no process instance-id = it's a message start event
if (StringUtils.isEmpty(eventSubscriptionEntity.getProcessInstanceId())) {
throw new ActivitiException(
"Cannot deploy process definition '"
+ processDefinition.getResourceName()
+ "': there already is a message event subscription for the message with name '"
+ eventDefinition.getEventName()
+ "'.");
}
}
MessageEventSubscriptionEntity newSubscription = new MessageEventSubscriptionEntity();
newSubscription.setEventName(eventDefinition.getEventName());
newSubscription.setActivityId(eventDefinition.getActivityId());
newSubscription.setConfiguration(processDefinition.getId());
newSubscription.setProcessDefinitionId(processDefinition.getId());
if (processDefinition.getTenantId() != null) {
newSubscription.setTenantId(processDefinition.getTenantId());
}
newSubscription.insert();
}
}
}
}