Error [... is not a literal node]: Modyfing artifact properties when artifact has "link to"

Philipp Thomann

Aug 09 '21, 1:44 p.m.

Hello Community, I have following Issue:

Problem description

I am able to modify the the attributes of an artifact without any issues as long as the attribute hasn't any link to a requirement. When the attribute has a link to an requirement following error occurs:

>https://jazz.XXX.com/rm/resources/TX_CVfu-lDmEeuWbbdnw2HZow is not a literal node</err:detailedMessage>

I linked the Evidence --> a requirement.

Source: https://jazz.net/library/article/1197

Used Programming language: C# VS

API: OSLC-Core-Version=2.0

Code

//Request: Get Artifact

                    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(milestones.EvidenceResource);
                    request = createRequest(request, context);
                    IWebProxy proxy = WebRequest.DefaultWebProxy;
                    // Uri proxyUri = proxy.GetProxy(request.RequestUri);
                    bool isBypassed = proxy.IsBypassed(request.RequestUri);
                    if (!isBypassed)
                        proxy.Credentials = context.ProxyCredential;
                    HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                    var reader = new StreamReader(response.GetResponseStream());
                    var etag = response.Headers.Get("ETag");
                    var Replace = reader.ReadToEnd();

**Response I get [WHEN Artefact has a link to a requirement:]

[Received Body --> and I send the same body PUT without any modification]

<rdf:RDF

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

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

xmlns:public_rm_10="http://www.ibm.com/xmlns/rm/public/1.0/"

xmlns:calm="http://jazz.net/xmlns/prod/jazz/calm/1.0/"

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

xmlns:rm_property="https://jazz.XXX.com/rm/types/"

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

xmlns:process="http://jazz.net/ns/process#"

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

xmlns:dc="http://purl.org/dc/elements/1.1/"

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#" >

<rdf:Description rdf:nodeID="A0">

<rdf:subject rdf:resource="https://jazz.XXX.com/rm/resources/MD_lqu3QY14EeucUNeS-GXy8w"/>

<rdf:predicate rdf:resource="https://jazz.XXX.com/rm/types/LT_4_CfI_XnEeumDc79C12NdA"/>

<rdf:object rdf:resource="https://jazz.XXX.com/rm/resources/TX_CVfu-lDmEeuWbbdnw2HZow"/>

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

<dcterms:title>1228377</dcterms:title>

</rdf:Description>

<rdf:Description rdf:about="https://jazz.XXX.com/rm/resources/MD_lqu3QY14EeucUNeS-GXy8w">

<oslc_config:component rdf:resource="https://jazz.XXX.com/rm/cm/component/V1TCoPQ4Eequ_bWtpv6_DQ"/>

    <dcterms:created rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-03-25T14:44:22.836Z</dcterms:created>

    <rm_property:AD_cWfn1m-UEeuSlb86Gyd1dg rdf:resource="https://jazz.XXX.com/rm/types/AT_XItUWW-UEeuSlb86Gyd1dg#_dvQgOb1pGAq2_cUQUlcMmg"/>

    <dcterms:contributor rdf:resource="https://jazz.XXX.com/jts/users/thophi"/>

    <process:projectArea rdf:resource="https://jazz.XXX.com/rm/process/project-areas/_VmiN4PQ4Eequ_bWtpv6_DQ"/>

    <rm_property:AD_vUgxAG-UEeuSlb86Gyd1dg rdf:datatype="http://www.w3.org/2001/XMLSchema#string">XX_4235676</rm_property:AD_vUgxAG-UEeuSlb86Gyd1dg>

    <dcterms:identifier rdf:datatype="http://www.w3.org/2001/XMLSchema#string">1283914</dcterms:identifier>

    <rm_property:AD_ffc7oJ3dEeuPP9F2fpUvLw rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Antenne Position</rm_property:AD_ffc7oJ3dEeuPP9F2fpUvLw>

    <oslc:instanceShape rdf:resource="https://jazz.XXX.com/rm/types/OT_kXZjO2-UEeuSlb86Gyd1dg"/>

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

    <acp:accessControl rdf:resource="https://jazz.XXX.com/rm/accessControl/_VmiN4PQ4Eequ_bWtpv6_DQ"/>

    <rm_property:AD_IR_i041QEeucUNeS-GXy8w rdf:datatype="http://www.w3.org/2001/XMLSchema#date">2021-02-26</rm_property:AD_IR_i041QEeucUNeS-GXy8w>

    <dcterms:description rdf:parseType="Literal"></dcterms:description>

    <nav:parent rdf:resource="https://jazz.XXX.com/rm/folders/FR_7b-SEm-UEeuSlb86Gyd1dg"/>

    <dcterms:title rdf:parseType="Literal">Req4</dcterms:title>

    <dcterms:modified rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2021-08-06T10:26:42.826Z</dcterms:modified>

    <rdf:type rdf:resource="http://jazz.net/ns/rm#Module"/>

    <dcterms:creator rdf:resource="https://jazz.XXX.com/jts/users/thophi"/>

    <oslc:serviceProvider rdf:resource="https://jazz.XXX.com/rm/oslc_rm/_VmiN4PQ4Eequ_bWtpv6_DQ/services.xml"/>

    <rm_property:AD_I12-IIM6EeuSlb86Gyd1dg rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Freigegeben</rm_property:AD_I12-IIM6EeuSlb86Gyd1dg>

    <rm_property:LT_4_CfI_XnEeumDc79C12NdA rdf:resource="https://jazz.XXX.com/rm/resources/TX_CVfu-lDmEeuWbbdnw2HZow"/>

<rm_property:AD_3SNIoIi0EeucUNeS-GXy8w rdf:datatype="http://www.w3.org/2001/XMLSchema#string"></rm_property:AD_3SNIoIi0EeucUNeS-GXy8w>

</rdf:Description>

</rdf:RDF>

//Request PUT Arrtifact [In between I usually do some Meta data manipulation, for debugging reasons I left this part complet out. and send exactly the same body back as i receive: ]

request = (HttpWebRequest)WebRequest.Create(milestones.EvidenceResource);
                    request.Headers.Add("If-Match", etag);
                    request = createRequest(request, context);
                    request.Method = "PUT";
                    using (var requestStream = request.GetRequestStream())
                    {
                        using (var streamWriter = new StreamWriter(requestStream))
                        { streamWriter.Write(Replace); }
                    }

                    var response_ = request.GetResponse();
                    var responseStream = response_.GetResponseStream();
                    var streamReader = new StreamReader(responseStream);
                    var data = streamReader.ReadToEnd();

Error Message:

<rdf:RDF

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

xmlns:err="http://jazz.net/xmlns/prod/jazz/foundation/1.0/">

<rdf:Description>

<err:detailedMessage rdf:datatype="http://www.w3.org/2001/XMLSchema#string"

>https://jazz.XXX.com/rm/resources/TX_CVfu-lDmEeuWbbdnw2HZow is not a literal node</err:detailedMessage>

<err:errorMessage rdf:datatype="http://www.w3.org/2001/XMLSchema#string"

>Falsche Anforderung</err:errorMessage>

<err:errorStatus rdf:datatype="http://www.w3.org/2001/XMLSchema#long"

>400</err:errorStatus>

</rdf:Description>

</rdf:RDF>

--> System.Net.WebException: 'The remote server has returned an error: (400) Invalid request.'

Many thanks for any input/suggestion/hint

//Philipp

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Accepted answer

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Philipp Thomann

(30●6) edited

Feb 23 '22, 3:12 a.m.

Update and answer to this question:

The problem could be narrowed down to when an artifact is linked with a custom link (without predefined URI) to a requirement. (Standard Links defined by DOORS worked fine)

Solution: Each custom link needs to have a URI (Link types setting) defined when updates via OSLC are done.

Headers PUT and GET request [Source: IBM Ian]

GET https://jazz.ibm.com:9443/rm/resources/MD_CEpgWNd8EeqV5_5cfWW9rw?oslc_config.context=https%3A%2F%2Fjazz.ibm.com%3A9443%2Frm%2Fcm%2Fstream%2F_B5n79td8EeqV5_5cfWW9rw HTTP/1.1
Host: jazz.ibm.com:9443
Accept-Encoding: gzip, deflate, br
Accept: application/rdf+xml
Connection: keep-alive
X-Requested-With: XMLHttpRequest
Referer: https://jazz.ibm.com:9443/rm/web
OSLC-Core-Version: 2.0
Configuration-Context: https://jazz.ibm.com:9443/rm/cm/stream/_B5n79td8EeqV5_5cfWW9rw
vvc.configuration: https://jazz.ibm.com:9443/rm/cm/stream/_B5n79td8EeqV5_5cfWW9rw
Cache-Control: no-store, max-age=0
Cookie: JAZZ_AUTH_TOKEN=""; jfs-oauth-access_token-secret0=""; JSESSIONID=""; LtpaToken2=""

PUT

PUT https://jazz.ibm.com:9443/rm/resources/MD_CEpgWNd8EeqV5_5cfWW9rw?oslc_config.context=https%3A%2F%2Fjazz.ibm.com%3A9443%2Frm%2Fcm%2Fstream%2F_B5n79td8EeqV5_5cfWW9rw HTTP/1.1
Host: jazz.ibm.com:9443
Accept-Encoding: gzip, deflate, br
Accept: application/xml
Connection: keep-alive
X-Requested-With: XMLHttpRequest
Referer: https://jazz.ibm.com:9443/rm/web
OSLC-Core-Version: 2.0
Configuration-Context: https://jazz.ibm.com:9443/rm/cm/stream/_B5n79td8EeqV5_5cfWW9rw
Content-Type: application/rdf+xml
vvc.configuration: https://jazz.ibm.com:9443/rm/cm/stream/_B5n79td8EeqV5_5cfWW9rw
If-Match: "%220%22&_XKN8YI9LEeyEDflBVqwSHg"
Cookie: JAZZ_AUTH_TOKEN=""; jfs-oauth-access_token-secret0=""; JSESSIONID=""; LtpaToken2=""

Ralph Schoon selected this answer as the correct answer

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Ralph Schoon

FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER Feb 23 '22, 3:27 a.m.

Thanks for sharing Philip.

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Question asked: Aug 09 '21, 10:42 a.m.

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Last updated: Feb 23 '22, 3:27 a.m.

Error [... is not a literal node]: Modyfing artifact properties when artifact has "link to"

Philipp Thomann

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Philipp Thomann

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Ralph Schoon

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