How Can I solve this problem related to init workflow instances?

geekonspace — Fri, 19 Jul 2013 22:36:29 GMT

Hi, I have designed a workflow in my nuxeo studio : wTest, this workflow has first user task and the assignee property in this task has this value: @{WorkflowVariables["user_assigned"] == "" ? "user_group" : WorkflowVariables["user_assigned"]}, with this configuration, first time the task is assigned to default group "user_group" and if there is a reject, the task is assgined to last user assigned.

I want to create instance but without start it automatically, then I use your method createNewInstance with startInstance parameter in false:

createNewInstance(final String routeModelId,
            final List<String> docIds, final Map<String, Serializable> map,
            CoreSession session, final boolean startInstance)

With the parameter returned, I search documentRoute and using my custom method I want to start the instance, in my method I did this:

protected void startInstance(final DocumentRoute route,
		final Map<String, Serializable> map, CoreSession session) {
	try {
		new UnrestrictedSessionRunner(session) {
			@Override
			public void run() throws ClientException {
				fireEvent(
						DocumentRoutingConstants.Events.beforeRouteStart
								.name(),
						new HashMap<String, Serializable>());
				DocumentRoutingEngineService routingEngine = Framework
						.getLocalService(DocumentRoutingEngineService.class);
				routingEngine.start(route, map, session);
			}

			protected void fireEvent(String eventName,
					Map<String, Serializable> eventProperties) {
				eventProperties
						.put(DocumentRoutingConstants.DOCUMENT_ELEMENT_EVENT_CONTEXT_KEY,
								route);
				eventProperties.put(
						DocumentEventContext.CATEGORY_PROPERTY_KEY,
						DocumentRoutingConstants.ROUTING_CATEGORY);
				DocumentEventContext envContext = new DocumentEventContext(
						session, session.getPrincipal(),
						route.getDocument());
				envContext.setProperties(eventProperties);
				EventProducer eventProducer = Framework
						.getLocalService(EventProducer.class);
				try {
					eventProducer.fireEvent(envContext.newEvent(eventName));
				} catch (ClientException e) {
					throw new ClientRuntimeException(e);
				}
			}

		}.runUnrestricted();
	} catch (ClientException e) {
		throw new RuntimeException(e);
	}
}

I believe this is the same thing but in two parts, what happens is that I want create the instance, set a value into map variable before start automatically. Now when I create and start instance automatically with your method createNewInstance, this works perfectly but when I want to create the instance, set value to map and after start it with my method, this error is throws in server log:

Caused by: org.nuxeo.ecm.platform.routing.api.exception.DocumentRouteException: Can not evaluate task assignees from WorkflowVariables["user_assigned"] == "" ? "user_group" : WorkflowVariables["user_assigned"]
	at org.nuxeo.ecm.platform.routing.core.impl.GraphNodeImpl.evaluateTaskAssignees(GraphNodeImpl.java:584)
	at org.nuxeo.ecm.platform.routing.core.impl.GraphRunner.createTask(GraphRunner.java:345)
	at org.nuxeo.ecm.platform.routing.core.impl.GraphRunner.runGraph(GraphRunner.java:228)
	at org.nuxeo.ecm.platform.routing.core.impl.GraphRunner.run(GraphRunner.java:75)

How can I do that?, Create instance, set a value inside of map, start instance and to prevent this error. In another workflows, it works perfectly but the assignes values are statics and not expresions.

Re: How Can I solve this problem related to init workflow instances?

geekonspace — Mon, 22 Jul 2013 23:13:53 GMT

Hi, we have replaced our ternary expresion

1-@{WorkflowVariables["user_assigned"] == "" ? "user_group" : WorkflowVariables["user_assigned"]}

with

2-@{WorkflowVariables["user_assigned"] == empty ? "user_group" : WorkflowVariables["user_assigned"]}

Why my old expresion (1) worked perfectly and now with my custom changes, we have to use expression (2)? Resp: We dont know :S

topic Re: How Can I solve this problem related to init workflow instances? in Nuxeo Forum

How Can I solve this problem related to init workflow instances?

Re: How Can I solve this problem related to init workflow instances?