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Retrieve Artifact Template Information in OSLC


Stephen Valliere (231116) | asked Aug 06 '13, 3:16 p.m.
 I am trying to get the template definition information from an artifact type in my project using the following URI:


The URI was pulled directly from the discovery request on my project.

When I run this request through Poster in Firefox, I get the correct response and all of the template information. However when I run it through my web application I get an error. Other requests against the same server appear to work fine. I am using the same credentials in Poster and my web application. Here is the error message I retrieved from the server:

2013-08-05 13:39:45,490 [      http-bio-9080-exec-13732] ERROR ibm.rdm.fronting.server.services.types.TypeService  - Server Error: Entry [fa6ae3dac9835862] 
java.lang.NullPointerException
 
       at com.ibm.rdm.fronting.server.services.types.internal.ResourceShapeService.doGetInternal(ResourceShapeService.java:71)
 
       at com.ibm.rdm.fronting.server.core.internal.RRSRestServiceBase.runInternalMethod(RRSRestServiceBase.java:683)
 
       at com.ibm.rdm.fronting.server.core.internal.RRSRestServiceBase.handleMethod(RRSRestServiceBase.java:611)
 
       at com.ibm.rdm.fronting.server.core.internal.RRSRestServiceBase.doGet(RRSRestServiceBase.java:123)
 
       at com.ibm.rdm.fronting.server.core.internal.RRSRestServiceBase.performService(RRSRestServiceBase.java:330)
 
       at com.ibm.rdm.fronting.server.core.internal.RRSRestServiceBase.service(RRSRestServiceBase.java:214)
 
       at com.ibm.team.jfs.app.servlet.AppContainerServlet.dispatchRequest(AppContainerServlet.java:155)
 
       at com.ibm.team.jfs.app.servlet.AppContainerServlet.service(AppContainerServlet.java:281)
 
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
 
       at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)
 
       at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:126)
 
       at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:76)
 
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
 
       at org.eclipse.equinox.servletbridge.BridgeServlet.service(BridgeServlet.java:120)
 
       at com.ibm.team.repository.server.servletbridge.JazzServlet.service(JazzServlet.java:68)
 
       at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
 
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
 
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
 
       at com.ibm.team.repository.server.servletbridge.BridgeFilter.processDelegate(BridgeFilter.java:133)
 
       at com.ibm.team.repository.server.servletbridge.BridgeFilter.doFilter(BridgeFilter.java:154)
 
       at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
 
       at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
 
       at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
 
       at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
 
       at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
 
       at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
 
       at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
 
       at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:309)
 
       at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
 
       at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
 
       at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
 
       at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
 
       at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
 
       at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:897)
 
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:919)
 
       at java.lang.Thread.run(Thread.java:738)
 

Thank you!

2 answers



permanent link
Rosa Naranjo (2.8k11419) | answered Aug 06 '13, 5:35 p.m.
FORUM MODERATOR / JAZZ DEVELOPER
Hello
Please open a workitem in Jazz.net against RRC and list the above information as well as what version of RRC and what other OSLC calls you used prior to this one in order to get to this point.

Also, I am not sure what you mean by this statement exactly "...The URI was pulled directly from the discovery request on my project." Could you elaborate that?

Please put the link to the workitem as a reply to this post when complete/

Comments
Stephen Valliere commented Aug 07 '13, 7:49 a.m.

What I mean is that I am making a call to http://MYSERVER:9080/rm/discovery/PROJECTID/services.xml and in the returned XML there are 10 artifact templates listed in the Creation Factory. I get the same error when I try to call any of them in my web application, but no error when I call them from Poster.

Since it works on Poster, I don't think there is anything wrong with RRC. Most likely I have something configured incorrectly in my application. I was hoping that someone might have an idea what I am doing wrong based on the server log information I have provided. I didn't want to submit a defect when most likely this is not a defect.

I am using version 4.0.2 of the JTS and DNG is installed instead of RRC if that makes a difference.


Rosa Naranjo commented Aug 09 '13, 10:20 a.m.
FORUM MODERATOR / JAZZ DEVELOPER

what version of RRC are you using? What code are you using for the OAuth? Is it the same as what is in the OSLC workshop? I assume that if you have successfully made a call to retrieve the creation factory URL that you have no OAUth issue.

I do have a sample in the OSLC workshop of making a call to create a requirement using the first artifact template in the list. Have you compared your code to what is in Example04 in the OSLC workshop?


permanent link
Rosa Naranjo (2.8k11419) | answered Aug 09 '13, 11:12 a.m.
FORUM MODERATOR / JAZZ DEVELOPER
Here is the output of when I run Example04 from the OSLC workshop which uses the first resource shape returned to create a requirement with primary text. Also, please note that the GET to the services URI is not the first GET to a protected resource. Before you do the GET to the services URI, have you also tried to retrieve the service catalog URI? Have you tried to do a GET on any of the other artifact template URIs? Does it fail with same exception?
 >> GET(1) https://clm.process.ws/rm/discovery/_meCLkP_LEeKxkogx-RK4jA/services.xml
>> Response Headers:
	- Server: Apache-Coyote/1.1
	- OSLC-Core-Version: 2.0
	- Content-Type: application/rdf+xml
	- Transfer-Encoding: chunked
	- Date: Fri, 09 Aug 2013 14:50:25 GMT
Creation Factory URI->> https://clm.process.ws/rm/requirementFactory?projectURL=https%3A%2F%2Fclm.process.ws%2Fjts%2Fprocess%2Fproject-areas%2F_meCLkP_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_ok1gAf_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_oobmk__LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_oroEgf_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_otTfgf_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_ouYdkf_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_owSiEf_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_oxvTkf_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_oy6YQf_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_o0TfY__LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_o1X2Y__LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_o2i7Ef_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_o33wwf_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_o46Skv_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_o7V7gv_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_o8o8Af_LEeKxkogx-RK4jA
Resource Shape URI->> https://clm.process.ws/rm/types/_o-adof_LEeKxkogx-RK4jA
>> GET(1) https://clm.process.ws/rm/types/_ok1gAf_LEeKxkogx-RK4jA
>> Response Headers:
	- Server: Apache-Coyote/1.1
	- Content-Type: application/rdf+xml
	- Transfer-Encoding: chunked
	- Date: Fri, 09 Aug 2013 14:50:25 GMT
http://jazz.net/ns/rm#primaryText
New Requirement Content ->>
<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF
		xmlns:oslc_rm="http://open-services.net/ns/rm#"
		xmlns:dc="http://purl.org/dc/terms/"
		xmlns:oslc="http://open-services.net/ns/core#"
		xmlns:nav="http://jazz.net/ns/rm/navigation#"
		xmlns:rm_property="https://clm.process.ws/rm/types/"
		xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
	<oslc_rm:Requirement
		xmlns:rm_jazz="http://jazz.net/ns/rm#"
		rdf:about="">
	<dc:title>MyDocument</dc:title>
	<dc:description>This is a test document</dc:description>
	<oslc:instanceShape rdf:resource="https://clm.process.ws/rm/types/_ok1gAf_LEeKxkogx-RK4jA"/>
	<nav:parent rdf:resource="https://clm.process.ws/rm/folders/_BdsToQEDEeO47Z4cL0DozA"/>
	<rm_jazz:primaryText rdf:parseType="Literal"><div xmlns="http://www.w3.org/1999/xhtml" id="_Nf2cQJKNEd25PMUBGiN3Dw"><h1 id="_DwpWsMueEd28xKN9fhQheA">Test Document</h1></div></rm_jazz:primaryText>
	</oslc_rm:Requirement>
</rdf:RDF>

>> POST(1) https://clm.process.ws/rm/requirementFactory?projectURL=https://clm.process.ws/jts/process/project-areas/_meCLkP_LEeKxkogx-RK4jA
>> Response Headers:
	- Server: Apache-Coyote/1.1
	- Location: https://clm.process.ws/rm/resources/_BuqH0QEDEeO47Z4cL0DozA
	- X-Last-Modified-XSD: 2013-08-09T14:50:26.387Z
	- Last-Modified: Fri, 09 Aug 2013 14:50:26 GMT
	- X-Last-Modified-User: https://clm.process.ws/jts/users/pewadmin
	- X-Jazz-Owning-Context: https://clm.process.ws/jts/process/project-areas/_meCLkP_LEeKxkogx-RK4jA
	- ETag: "%220%22&%22_ButyMQEDEeO47Z4cL0DozA%22"
	- Content-Length: 0
	- Date: Fri, 09 Aug 2013 14:50:26 GMT
>> Created Requirement [https://clm.process.ws/rm/resources/_BuqH0QEDEeO47Z4cL0DozA]

Comments
Stephen Valliere commented Aug 09 '13, 11:19 a.m.

Those are essentially the same GET requests I am running, the first one works and the second gives me the error posted above.


Rosa Naranjo commented Aug 09 '13, 11:32 a.m.
FORUM MODERATOR / JAZZ DEVELOPER

Stephen, does every GET on each of the artifact template types give you the same error? or just the one that you chose? 


Rosa Naranjo commented Aug 09 '13, 12:57 p.m.
FORUM MODERATOR / JAZZ DEVELOPER

 Stephen

The exception seems to be related to a deleted artifact type. Can you check if the artifact type exists in the RM project?

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