It's all about the answers!

Ask a question
QuestionsTagsUsersBadges
Guidelines | FAQ
Follow this question
Question details

×12,010
×5,945
×1,442

question asked: Mar 04 '22, 1:39 p.m.
question was seen: 1,429 times
last updated: Mar 08 '22, 4:18 a.m.

Related questions

How do I create a configuration in DNG via OSLC API

0
Arthur Kleer (30●4) | asked Mar 04 '22, 1:39 p.m.
edited Mar 04 '22, 1:41 p.m.

Hi,


I am trying to create configurations (streams, baselines, changesets) via the OSLC API.
I successfully can create components.

I implemented it according to:
(or at least I tried, not sure if the problem is on my side)

The steps

I am sending (POST) the following data 
<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
    xmlns:ldp="http://www.w3.org/ns/ldp#"
    xmlns:oslc="http://open-services.net/ns/core#"
    xmlns:oslc_config="http://open-services.net/ns/config#"
    xmlns:acc="http://open-services.net/ns/core/acc#"
    xmlns:process="http://jazz.net/ns/process#">
    <oslc_config:Baseline>
        <dcterms:title rdf:parseType="Literal">Baseline new baseline via API</dcterms:title>
        <dcterms:subject rdf:parseType="Literal">Tag</dcterms:subject>
        <dcterms:description rdf:parseType="Literal">Description Baseline new baseline via API</dcterms:description>
        <oslc:shortTitle>Baseline</oslc:shortTitle>
    </oslc_config:Baseline>
</rdf:RDF>
to the following URI

this URI is read from the stream properties. A GET on this URI, pulls existing baselines. So it seems to be correct.

The Problem

The POST returns a 202, which I try to handle, by reading the URI in the Location header. This indicates that the configuration could not be created (and it is not).  

https://xyz-dng-server/taskTracker/15647728-61ce-46a9-8d1e-4a1391150dc0


<rdf:RDF
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:jfs="http://jazz.net/xmlns/foundation/1.0/"
    xmlns:acp="http://jazz.net/ns/acp#"
    xmlns:calm="http://jazz.net/xmlns/prod/jazz/calm/1.0/"
    xmlns:jazz_rm="http://jazz.net/ns/rm#"
    xmlns:acc="http://open-services.net/ns/core/acc#"
    xmlns:rmTypes="http://www.ibm.com/xmlns/rdm/types/"
    xmlns:process="http://jazz.net/ns/process#"
    xmlns:rmWorkflow="http://www.ibm.com/xmlns/rdm/workflow/"
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:dc="http://purl.org/dc/elements/1.1/"
    xmlns:h="http://www.w3.org/TR/REC-html40"
    xmlns:xs="http://schema.w3.org/xs/"
    xmlns:oslc="http://open-services.net/ns/core#"
    xmlns:nav="http://jazz.net/ns/rm/navigation#"
    xmlns:oslc_config="http://open-services.net/ns/config#"
    xmlns:oslc_rm="http://open-services.net/ns/rm#"
    xmlns:dng_task="http://jazz.net/ns/rm/dng/task#"
    xmlns:rm="http://www.ibm.com/xmlns/rdm/rdf/"
    xmlns:oslc_auto="http://open-services.net/ns/auto#">
  <oslc_config:Activity rdf:about="https://xyz-dng-server/taskTracker/15647728-61ce-46a9-8d1e-4a1391150dc0">
    <dcterms:title rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
    >Create Child Configuration Task</dcterms:title>
    <oslc_auto:state rdf:resource="http://open-services.net/ns/auto#complete"/>
    <dcterms:references>
      <oslc:Error>
        <oslc:statusCode>0</oslc:statusCode>
        <oslc:message>Unexpected exception while executing task</oslc:message>
      </oslc:Error>
    </dcterms:references>
    <oslc_auto:verdict rdf:resource="http://open-services.net/ns/auto#error"/>
  </oslc_config:Activity>
</rdf:RDF>

Any idea if I am doing something wrong here? Especially I am not sure about the data to be sent.
I used a similar structure as for the component creation, except the oslc_config:Baseline instead of the oslc_config:Component

Accepted answer

1
permanent link
Ian Barnard (2.3k●7●14) | answered Mar 07 '22, 9:52 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER
edited Mar 08 '22, 4:18 a.m.

202 is the expected response - the Location header in the response is the TaskTracker, you have to poll this until it indicates completion. When it indicates completion, for a success the result is a URL of the new baseline, or for failure there might be some sort of error indication like you have.


When I've tried this the minimal content in the POST was:

<rdf:RDF
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:oslc_config="http://open-services.net/ns/config#">
      <oslc_config:Configuration rdf:about="https://jazz.ibm.com:9443/rm/cm/changeset/something">
        <dcterms:title rdf:parseType="Literal">Title of the Baseline</dcterms:title>
        <dcterms:description rdf:parseType="Literal">Some Description of Baseline</dcterms:description>      
        <oslc_config:component rdf:resource="https://jazz.ibm.com:9443/rm/cm/component/_4KRMENcKEeqXpuBdEolY7w"/>
      </oslc_config:Configuration>
</rdf:RDF>

So maybe try removing the tag and short title, and adding the oslc_config:component. The description is I believe optional as well. Most likely the real problem is the missing oslc_config:component.

HTH
Ian

Arthur Kleer selected this answer as the correct answer
Comments
Ralph Schoon commented Mar 07 '22, 9:54 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER

See API Landing page: https://jazz.net/wiki/bin/view/Deployment/CLMProductAPILanding


See https://jazz.net/wiki/bin/view/Main/DNGServerAPI for the task tracker API. 

Arthur Kleer commented Mar 07 '22, 12:27 p.m.

Thanks,

the combination of adding oslc_config:component and the rdf:about in the oslc_config:Configuration (or oslc_config:Baseline, both work) did the trick.

One other answer

Most liked answers ↑|Newest answers|Oldest answers

0
permanent link
Ralph Schoon (63.6k●3●36●46) | answered Mar 07 '22, 2:11 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER

 I have found https://jazz.net/forum/questions/249582/is-there-a-rest-api-for-dng-to-create-a-local-streamcomponent-and-baseline, maybe that helps. I used https://www.google.com/search?q=dng+create+stream+API+site%3Ajazz.net 


I ran into a strange issue when creating change sets with the API, where the POST caused a null pointer exception in the server, unless you sent a valid URI (rdf:about). Consider GETting a configuration and see if there are properties missing. 

Comments
Arthur Kleer commented Mar 07 '22, 12:32 p.m.

without rdf:about, neither Baseline, Stream nor Changeset work for me. the TaskTracker always responds with "Unexpected exception while executing task", same when omitting the oslc_config:component. Cannot tell if that also caused a null pointer on server side.


With about and component, it works perfectly!

Your answer

Register or to post your answer.


Dashboards and work items are no longer publicly available, so some links may be invalid. We now provide similar information through other means. Learn more here.