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question asked: May 17 '13, 12:26 p.m.
question was seen: 9,476 times
last updated: May 17 '13, 12:40 p.m.

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How to add external link to DOORS requirement via OSLC using HTTP PUT

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Itai Shimron (16●1●2●1) | asked May 17 '13, 12:26 p.m.
JAZZ DEVELOPER
Hi All,
I've got the following question on how to add external link to existing doors requirement using OSLC:

According to the OSLC specification, I can do a PUT request on this same URL, adding a header “If-Match” with the value from the ETag header, and in the body of the request put the modified XML representation of the DOORS requirement (I added a dcterms:reference that points to google.com):
<?xml version="1.0"?>
<rdf:RDF
xmlns:dcterms="http://purl.org/dc/terms/"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:rm_property="https://sdm02.wv.mentorg.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-M-00000025/types/"
xmlns:rm="http://jazz.net/ns/rm#"
xmlns:acp="http://jazz.net/ns/acp#"
xmlns:oslc="http://open-services.net/ns/core#"
xmlns:foaf="http://xmlns.com/foaf/0.1/"
xmlns:doorsInternalLinks1="https://sdm02.wv.mentorg.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-M-00000026/linkTypes/"
xmlns:oslc_rm="http://open-services.net/ns/rm#">
<oslc_rm:Requirement rdf:about="https://sdm02.wv.mentorg.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-O-21-00000025">
<doorsInternalLinks1:references rdf:resource="https://sdm02.wv.mentorg.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-O-18-00000025"/>
<oslc:instanceShape rdf:resource="https://sdm02.wv.mentorg.com:8443/dwa/rm/oslc/shape/requirement/urn:rational::1-50d3587940151bf2-M-00000025"/>
<rm_property:attrDef-9 rdf:datatype="http://www.w3.org/2001/XMLSchema#integer"
>21</rm_property:attrDef-9>
<dcterms:description rdf:parseType="Literal">send-receive i/f</dcterms:description>
<oslc:serviceProvider rdf:resource="https://sdm02.wv.mentorg.com:8443/dwa/rm/discovery/service/urn:rational::1-50d3587940151bf2-M-00000025"/>
<dcterms:contributor>
<foaf:Person>
<foaf:name>sdmbuild</foaf:name>
</foaf:Person>
</dcterms:contributor>
<rm_property:attrDef-12 rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
>All control interfaces must use send-receive protocol</rm_property:attrDef-12>
<rm_property:attrDef-0 rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
></rm_property:attrDef-0>
<rm_property:attrDef-4 rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
>bchown</rm_property:attrDef-4>
<dcterms:title rdf:parseType="Literal">21: All control interfaces must use send-receive protocol</dcterms:title>
<dcterms:identifier rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
>21</dcterms:identifier>
<rm_property:attrDef-7 rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime"
>2013-04-18</rm_property:attrDef-7>
<rm:primaryText rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
>Standard send-receive for all control data interfaces</rm:primaryText>
<acp:accessControl rdf:resource="https://sdm02.wv.mentorg.com:8443/dwa/rm/acp/urn:rational::1-50d3587940151bf2-F-00000000/MkEKX%252BxTtVyE1DPpEXgEzQ5Vv2g%253D%250A"/>
<dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime"
>2013-04-18T20:46:13Z</dcterms:modified>
<dcterms:references rdf:resource="http://sdm-staging.wv.mentorg.com/report/where-Used-Instantiated-Attribute-With-Gui?url=http%3A%2F%2Fsdm02.wv.mentorg.com%3A8080%2Fdwa%2Frm%2Furn%3Arational%3A%3A1-50d3587940151bf2-O-21-00000025"/>
<dcterms:references rdf:resource="http://www.google.com"/>
<rm_property:attrDef-6 rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
>sdmbuild</rm_property:attrDef-6>
<rm_property:attrDef-13 rdf:datatype="http://www.w3.org/2001/XMLSchema#string"
>send-receive i/f</rm_property:attrDef-13>
<rm_property:attrDef-10 rdf:resource="https://sdm02.wv.mentorg.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-M-00000025/types/attrDef-10#1"/>
<rm_property:attrDef-1006 rdf:resource="https://sdm02.wv.mentorg.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-M-00000025/types/attrDef-1006#3"/>
<rm_property:attrDef-8 rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime"
>2013-04-18T20:46:13Z</rm_property:attrDef-8>
<oslc:shortTitle rdf:parseType="Literal">21: All control interfaces must use send-receiv...</oslc:shortTitle>
<rm_property:attrDef-5 rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime"
>2013-01-14</rm_property:attrDef-5>
<dcterms:creator>
<foaf:Person>
<foaf:name>bchown</foaf:name>
</foaf:Person>
</dcterms:creator>
<dcterms:created rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime"
>2013-01-14</dcterms:created>
</oslc_rm:Requirement>
</rdf:RDF>

However, when I run this command from the RESTClient in Firefox, I get an error 401: HTTP Status 401 - Invalid signature for signature method HMAC-SHA1.

If I try this from a Java program instead, using the “signpost” library to assist with signing the OAuth request, I get an error 500 – Internal Server Error.

Here is the part of the OSLC specification that talks about updating resources using a PUT request:
http://open-services.net/bin/view/Main/OslcCoreSpecification?sortcol=table;up=#Resource_Operations

Here is the page in the DOORS specifications that says it supports this OSLC/REST HTTP PUT request (this applies to DOORS 9.3 and later – I am using 9.4.0.1):
http://pic.dhe.ibm.com/infocenter/doorshlp/v9/index.jsp?topic=%2Fcom.ibm.doors.install.doc%2Ftopics%2Fr_oslc_services.html

Lastly, here is a Jazz.net support page where this HTTP error 401 is discussed, but they never describe in detail how they solved the problem:
https://jazz.net/forum/questions/94750/oauth-access-programatically-to-doorsdwa

Do you have any ideas of what might be wrong here, or who I might be able to talk with to get this resolved? Perhaps this is something we can look at in our meeting this morning?

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Itai Shimron (16●1●2●1) | answered May 17 '13, 12:40 p.m.
JAZZ DEVELOPER
Here is the answer. First as Jena and then as rdf/xml
Thanks to Clyde Icuspit who provided the answer.

To add an external reference to a requirement you need to add a reified statement so that a dc:title could be associated with the new link. The dc:title shows up as the name of the link displayed in the GUI. The code snippet below uses Jena to handle the rdf+xml to create the reified statement expressing the external link and adding it into the rdf model

// theNewValue is the http://www.google.com
Resource aNewResource = m.createResource(theNewValue);

// m is the rdf model
// aResource is the requirement resource


Property refProp = m.createProperty"(http://purl.org/dc/terms/references") ;
Property titleProp = m.createProperty("http://purl.org/dc/terms/title");



Statement link = m.createStatement(aResource, refProp, aNewResource);

ReifiedStatement reBackLinkStatement = m.createReifiedStatement(link);
reBackLinkStatement.addProperty(titleProp, "J2");

m.add(reBackLinkStatement);

--------------------------------------------------------------------------------------
Answer in rdf/xml format:

<rdf:RDF

    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#";

    xmlns:acp="http://jazz.net/ns/acp#";

    xmlns:oslc_rm="http://open-services.net/ns/rm#";

    xmlns:oslc="http://open-services.net/ns/core#";

    xmlns:rm_property="https://mydomain.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-M-00000025/types/";

    xmlns:foaf="http://xmlns.com/foaf/0.1/";

    xmlns:dcterms="http://purl.org/dc/terms/";

    xmlns:doorsInternalLinks1="https://mydomain.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-M-00000026/linkTypes/";

    xmlns:rm="http://jazz.net/ns/rm#"; >

  <rdf:Description rdf:about="https://mydomain.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-O-21-00000025">;

    <oslc:instanceShape rdf:resource="https://mydomain.com:8443/dwa/rm/oslc/shape/requirement/urn:rational::1-50d3587940151bf2-M-00000025"/>;

    <oslc:serviceProvider rdf:resource="https://mydomain.com:8443/dwa/rm/discovery/service/urn:rational::1-50d3587940151bf2-M-00000025"/>;

    <doorsInternalLinks1:references rdf:resource="https://mydomain.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-O-18-00000025"/>;

    <rm_property:attrDef-9 rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">21</rm_property:attrDef-9>;

    <dcterms:description rdf:parseType="Literal">send-receive i/f</dcterms:description>

    <rm_property:attrDef-12 rdf:datatype="http://www.w3.org/2001/XMLSchema#string">All control interfaces must use send-receive protocol</rm_property:attrDef-12>

    <rm_property:attrDef-0 rdf:datatype="http://www.w3.org/2001/XMLSchema#string"></rm_property:attrDef-0>;

    <rdf:type rdf:resource="http://open-services.net/ns/rm#Requirement"/>;

    <rm_property:attrDef-4 rdf:datatype="http://www.w3.org/2001/XMLSchema#string">bchown</rm_property:attrDef-4>;

    <dcterms:title rdf:parseType="Literal">21: All control interfaces must use send-receive protocol</dcterms:title>

    <dcterms:identifier rdf:datatype="http://www.w3.org/2001/XMLSchema#string">21</dcterms:identifier>;

    <dcterms:creator rdf:nodeID="A0"/>

    <rm_property:attrDef-7 rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-04-18</rm_property:attrDef-7>;

    <dcterms:references rdf:resource="http://www.google.com"/>;

    <rm:primaryText rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Standard send-receive for all control data interfaces</rm:primaryText>

    <acp:accessControl rdf:resource="https://mydomain.com:8443/dwa/rm/acp/urn:rational::1-50d3587940151bf2-F-00000000/MkEKX%252BxTtVyE1DPpEXgEzQ5Vv2g%253D%250A"/>;

    <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-04-18T20:46:13Z</dcterms:modified>;

    <rm_property:attrDef-13 rdf:datatype="http://www.w3.org/2001/XMLSchema#string">send-receive i/f</rm_property:attrDef-13>

    <rm_property:attrDef-6 rdf:datatype="http://www.w3.org/2001/XMLSchema#string">sdmbuild</rm_property:attrDef-6>;

    <dcterms:references rdf:resource="http://sdm-staging.wv.mentorg.com/report/where-Used-Instantiated-Attribute-With-Gui?url=http%3A%2F%2Fmydomain.com%3A8080%2Fdwa%2Frm%2Furn%3Arational%3A%3A1-50d3587940151bf2-O-21-00000025"/>;

    <rm_property:attrDef-10 rdf:resource="https://mydomain.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-M-00000025/types/attrDef-10#1"/>;

    <rm_property:attrDef-8 rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-04-18T20:46:13Z</rm_property:attrDef-8>;

    <rm_property:attrDef-1006 rdf:resource="https://mydomain.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-M-00000025/types/attrDef-1006#3"/>;

    <oslc:shortTitle rdf:parseType="Literal">21: All control interfaces must use send-receiv...</oslc:shortTitle>

    <rm_property:attrDef-5 rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-01-14</rm_property:attrDef-5>;

    <dcterms:contributor rdf:nodeID="A1"/>

    <dcterms:created rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2013-01-14</dcterms:created>;

  </rdf:Description>

  <rdf:Description rdf:nodeID="A0">

    <foaf:name>bchown</foaf:name>

    <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Person"/>;

  </rdf:Description>

  <rdf:Description rdf:nodeID="A1">

    <foaf:name>sdmbuild</foaf:name>

    <rdf:type rdf:resource="http://xmlns.com/foaf/0.1/Person"/>;

  </rdf:Description>

  <rdf:Description rdf:nodeID="A2">

    <dcterms:title>J2</dcterms:title>

    <rdf:object rdf:resource="http://www.google.com"/>;

    <rdf:predicate rdf:resource="http://purl.org/dc/terms/references"/>;

    <rdf:subject rdf:resource="https://mydomain.com:8443/dwa/rm/urn:rational::1-50d3587940151bf2-O-21-00000025"/>;

    <rdf:type rdf:resource="http://www.w3.org/1999/02/22-rdf-syntax-ns#Statement"/>;

  </rdf:Description>

</rdf:RDF>


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