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question asked: Sep 15 '15, 12:49 a.m.
question was seen: 3,051 times
last updated: Sep 23 '15, 4:09 a.m.

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DNG 6.0 : List of requiremnts in a folder

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Naveen Tyagi (197●78●152) | asked Sep 15 '15, 12:49 a.m.
i am able to get the folder list and URI from a DNG project. Now, i want to get the list of requirements in a folder.
After going trough few thread i got to know that the url would be for this: 

&oslc.prefix=oslc=<http://open-services.net/ns/core%23>,dcterms=<http://purl.org/dc/terms/>,
nav=<http://com.ibm.rdm/navigation%23>&oslc.select=dcterms:title,dcterms:description,
oslc:instanceShape&oslc.where=nav:parent=<https://grarrc.ibm.com:9443/rm/folders
/_RHCJYN5jEeGb6IIbvOh9Dw>

but not able to understand whether to use "query capability" for this url or need to do a get on this url.
I am using OSLC,Eclipse and Java.Thanking in advance.

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Donald Nong (14.5k●6●14) | answered Sep 15 '15, 10:51 p.m.
You need to do both. You should append the search parameters to the "queryBase" URL within "Query Capability" and do  a GET against the complete URL. Remember to add HTTP request headers "OSLC-Core-Version: 2.0" and "Accept: application/rdf+xml".
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Naveen Tyagi commented Sep 23 '15, 12:11 a.m.

Thanks Donald,
I managed to this without GET.

 i am able to get the requirements from a folder. I was using wrong prefix that only reason i was not getting value.
Here is the correct syntex to retrieve the URI of the artifacts inside a  folder :

OslcQueryParameters queryParams = new OslcQueryParameters();
queryParams = new OslcQueryParameters();
queryParams.setPrefix("nav=<http://com.ibm.rdm/navigation#>");
queryParams.setWhere("nav:parent=<"+ folderUri +">");
OslcQuery query =new OslcQuery(client, queryCapability, 100, queryParams);
OslcQueryResult result = query.submit();
System.out.println("Result value : " + result.getMembersUrls().length);

Now, one more challenge i am facing, if i have all the requiremnts inside folder then it is working fine but if there one or more than collection in folder then i am getting exception and it is obvious since i am treating every artifact as requirement. so Collection object assignment in Requirements will be incompatible. now, i am wondering how do retrieve requirements but not other artifacts ?

Donald Nong commented Sep 23 '15, 4:09 a.m.

Use an extra filter in the query. The candidates are oslc:instanceShape and rmTypes:ArtifactFormat.

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