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question asked: Jul 12 '17, 8:49 a.m.
question was seen: 2,329 times
last updated: Jun 13 '22, 10:24 a.m.

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Querybase of Folder Query Capability URI change in the latest DOORS Next Generation

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Velmurugan Muthu (11●1●3) | asked Jul 12 '17, 8:49 a.m.
edited Jul 12 '17, 8:52 a.m.

Previous version DNG response:

Query: https://rb-alm-02-t4.de.aaa.com/rm/oslc_rm/_lcBw0GC6Eee-NfIX3gcLkA/services.xml

          <oslc:QueryCapability>
            <dcterms:title rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Folder Query Capability</dcterms:title>

            <oslc:queryBase rdf:resource="https://rb-alm-02-t4.de.aaa.com/rm/folders?oslc.where=public_rm:parent=https://rb-alm-02-t4.de.aaa.com/rm/folders/_lcBw0GC6Eee-NfIX3gcLkA"/>

          </oslc:QueryCapability>

Latest version of DNG project response:

 <oslc:queryCapability>
          <oslc:QueryCapability>
            <dcterms:title rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
            >Folder Query Capability</dcterms:title>
            <oslc:queryBase rdf:resource="https://rb-ubk-clm-02.de.aaa.com:9443/rm/folders?oslc.where=public_rm:parent=https%3A%2F%2Frb-ubk-clm-02.de.aaa.com%3A9443%2Frm%2Fprocess%2Fproject-areas%2F_lcBw0GC6Eee-NfIX3gcLkA"/>

          </oslc:QueryCapability>
        </oslc:queryCapability>

So "oslc.where=public_rm:parent " in the resource attribute of querybase points to project root url instead of folder url. Why is this change ? Any background reasons.

Comments
Ian Barnard commented Jun 13 '22, 10:09 a.m. | edited Jun 13 '22, 10:24 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER
The query (oslc.where query parameter) is for previous:


and for latest:


As David points out this isn't correct syntactically for OSLC Query because URLs should be surounded by < >

What version+ifix are your "previous" and "latest" versions?

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Ian Barnard (2.3k●7●14) | answered Jun 10 '22, 10:23 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER

 You're seeing that we changed something about the query capability URLs between versions. As long as you use discovery to find the Folder query capability (i.e. don't hard-code it into your code), then query will continue to work across versions.

Comments
David Honey commented Jun 10 '22, 10:37 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER

I'd also argue that the older query base URL include an oslc.where parameter is confusing. While OSLC discovery doesn't place any restrictions on the query base URL, including an oslc.where parameter seems bizarre. A user would expect to use their own oslc.where parameter value without expecting to preserve what was provided in the base URL. So a DNG change to avoid that confusion is a change for the better.

Ian Barnard commented Jun 13 '22, 10:09 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER

AFAICT both query capability URLs include oslc.where - it's the value in the query that has changed.
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David Honey (1.8k●1●7) | answered Jun 10 '22, 11:05 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER
I also notice that the use of oslc.where encoded into the base URL is not conformant with the OSLC Query specification - see https://docs.oasis-open-projects.org/oslc-op/query/v3.0/os/oslc-query.html#oslc.where.

URIs values should be enclosed in angle brackets. For example instead of:
    public_rm:parent=https%3A%2F%2Frb-ubk-clm-02.de.aaa.com%3A9443%2Frm%2Fprocess%2Fproject-areas%2F_lcBw0GC6Eee-NfIX3gcLkA
it should be:
    public_rm:parent=<https%3A%2F%2Frb-ubk-clm-02.de.aaa.com%3A9443%2Frm%2Fprocess%2Fproject-areas%2F_lcBw0GC6Eee-NfIX3gcLkA>

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