topic Re: Does REST call task throw BPMNError? in Alfresco Forum

Does REST call task throw BPMNError?

esakilpi — Wed, 10 Feb 2021 08:12:54 GMT

If REST call task receives http status 400, for example, does it throw a BPMNError so that a boundary error event can catch it? It does not seem to happen.

Re: Does REST call task throw BPMNError?

cristinamr — Thu, 11 Feb 2021 10:07:49 GMT

Hi!

I am not so sure about your question but for example, If I take a look into this ActivitiWorkflowEngine java file I can see the errors are controlled like this:

 private static final String ERR_DEPLOY_WORKFLOW = "activiti.engine.deploy.workflow.error";

So, i can make the trace to this activiti-engine-messages properties file where is defined the translation of this error:

activiti.engine.deploy.workflow.error=Failed to deploy workflow definition.

Is this helping you? If not, could you please give us more details about exactly what do you need to know?

Cheers,

Cris.

Re: Does REST call task throw BPMNError?

esakilpi — Thu, 11 Feb 2021 10:25:14 GMT

Actually not. ERR_DEPLOY_WORKFLOW seems to be just a constant holding an error message for a failed deployment.

I mean that, in runtime, if a REST call task submits a request and reveices any other http status than OK it just hangs forever (if you don't attach a timer boundary event). Instead, it should throw a BPMNError so that the process could catch it and do something. My question is why it does not do it?

Re: Does REST call task throw BPMNError?

esakilpi — Thu, 11 Feb 2021 11:37:24 GMT

And exceptions like this are just logged and the execution hangs:

org.activiti.engine.ActivitiException: error while converting: 897 to long
	at com.activiti.runtime.activiti.BaseRestCallDelegate.getFormattedLongValue(BaseRestCallDelegate.java:760)
	at com.activiti.runtime.activiti.BaseRestCallDelegate.createJSONRequestObject(BaseRestCallDelegate.java:307)

It would be nice to know why numbers cannot be converted to long...

Re: Does REST call task throw BPMNError?

esakilpi — Thu, 11 Feb 2021 17:54:24 GMT

https://alfresco.atlassian.net/browse/MNT-18756

Seems no work has been logged...

Re: Does REST call task throw BPMNError?

abbask01 — Fri, 12 Feb 2021 11:24:31 GMT

No, it does not. create your custom service (fo a service task) that does the rest call and throws appropriate errors as you may need.

Re: Does REST call task throw BPMNError?

wojtekb — Wed, 17 Feb 2021 12:14:12 GMT

Hi, do you have any example of custom service task that does rest call?

Re: Does REST call task throw BPMNError?

abbask01 — Thu, 18 Feb 2021 05:23:30 GMT

you can use rest template to call rest apis from code. if you have stored your URLS in admin endpoint, use APS' endpointService to access them

Re: Does REST call task throw BPMNError?

esakilpi — Thu, 18 Feb 2021 14:11:07 GMT

Do you have an exaple of how to use EndpointService?

Re: Does REST call task throw BPMNError?

abbask01 — Mon, 22 Feb 2021 04:34:43 GMT

AFAIK EndpointService belongs to enterprise apis (of APS). contact alfresco for APS javadocs to kown usage and other details,