Answers to: How to get the URL of a process start within a JAX-RS class

Comment by Alex Suter on Emmanuel Comba's answer

Alex Suter — Thu, 19 Apr 2018 09:51:29 -0400

Hello everybody.

Thanks for the additional info. We think that this is a bug and we will fix that. But some api like ivy.repo.get(), will still fail, because they relates to a case. And in the rest context, there is no case set. There you must use ivy.repo.find(): XIVY-2504

Comment by Emmanuel Comba on Emmanuel Comba's answer

Emmanuel Comba — Thu, 19 Apr 2018 08:37:03 -0400

Hi @trungdv and @Alex Suter Thanks for your help. Calling a subcallable that compute, the given processName url, from the rest Resource is working fine. It is a little bit more complex but it is acceptable ;) It would be great to have access to the Ivy Context within a jax rs resource. Thanks and cheers Emmanuel

Comment by trungdv on Emmanuel Comba's answer

trungdv — Thu, 19 Apr 2018 07:12:12 -0400

hi @Emmanuel Comba I think you're right about in RestAPI we're outside of 'real' ivy context. I also can't use some api like ivy.repo or ivy.rule but i can use ivy.log or ivy.cms.

Normally i need to create callablesub just to execute Ivy.html().startref() then trigger it from RestApi.

I'm looking forward for another solution. :)

Answer by Emmanuel Comba

Emmanuel Comba — Thu, 19 Apr 2018 01:55:56 -0400

Hi Alex,

Thanks for your answer. This is unfortunately not exactly my use-case. What I want to achieve is:

A Rest Client calls the Rest Resource located in Ivy Process Model A. This Process Model has a bunch of process Starts (not SubCallable),
The Rest Resource provides a response Object (JSON) with several properties, among them the url of one of the process Start.
So I just want there to compute the Process Call url dynamically and "easily" ;)

Normally

Ivy.html().startref("Functional Processes/dis/videoIdentification/start.ivp")

is the easiest way to perform that. But in the case of a jax-rs Rest Resource, I suppose that the we are outside any "real" Ivy context. That could explain why I get the Error I have posted in my first post.

Do you know another way to perform that?

Thanks in advance Emmanuel

Answer by Alex Suter

Alex Suter — Thu, 19 Apr 2018 01:39:11 -0400

Hi @Emmanuel Comba

This bug has been fixed with Ivy 7.0.5 and Ivy 7.2. For other versions consider the workaround via a sub process call.

Have a look at ConnectivityDemos:

com.axonivy.connectivity.rest.provider.ApprovalService

Does this code snippet fit you rneeds?

ITask task = SubProcessCall.withPath("rest/createApproval")
                .withParam("title", title)
                .withParam("description", description)
                .call()
                .get("approvalTask", ITask.class);