slreq.find error searching requirements with a specific stereotype property.

CONTEXT OF THE PROBLEM:

I have created a requirement set called "reqset.slreqx", a profile called "prof.xml" in the same folder. The profile contains a first stereotype called "stereo1" applicable to Requirements with 2 properties called "prop1" enumeration type (Red, Green, Blue) and "prop2" type int8. I have created a second stereotype "stereo2" with similar properties. Requirement set and profile have been linked:

In the Requirements Editor,I have created 2 container requirements in the "reqset.slreqx" with 3 and 2 children requirement as it follows:

PROBLEM DESCRIPTION:

I want to retrieve/find which requirements in "reqset.slreqx" have the stereotype property "prop1" set to "Green".

Using the programmatic function slreq.find in the MATLAB command window as it follows:

slreq.find("Type","Requirement","prof.stereo1.prop1","Green")

The following error is shown:

Error using slreq.datamodel.RequirementData/find

No such attribute.

Error in slreq.data.ReqData/query

Error in slreq.find

Error in slreq.find

WHAT I HAVE DONE:

I have read https://es.mathworks.com/help/slrequirements/ref/slreq.find.html, and different chapters of the user guide and reference pdf.

• slreq.find works well with custom attributes of the requirement set.
• slreq.find("Type","Requirement","ReqType","prof.stereo1"); finds correctly the 3 "stereo1" requirements.
• getAttribute of a "green" "prop1" requirement

SET UP:

MATLAB, SIMULINK, Requirements Toolbox versions 2023a.

Answer 1

[Josh Kahn]

Hi @Alberto Estrada,

This is a known limitation in 23a.

Here's a workaround for you:

reqs = slreq.find(Type='Requirement', ReqType='prof.stereo1');
matchLogIdx = arrayfun(@(req) isequal(getAttribute(req, 'prof.stereo1.prop1'), enumeration_class.Green), reqs);
matchReqs = reqs(matchLogIdx);

Hope this helps,

Josh

[Alberto Estrada]

Thank you very much @Josh Kahn for the quick reply. I have applied your solution and it is quite accurate.

Anyway, it could be good that MATLAB implement this functionality directly in the SLREQ library, so code is easier.

[Josh Kahn]

Glad to help and thank you for the feedback!

Josh