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question asked: Oct 16 '12, 2:45 a.m.
question was seen: 7,138 times
last updated: May 25 '13, 4:19 p.m.

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How to fetch artifacts from RRC server?

1
1
Ankit Jain (21●1●3●7) | asked Oct 16 '12, 2:45 a.m.
retagged May 25 '13, 4:19 p.m. by Scott Rich (571●3●6)

I have a requirement in which I have to fetch artifacts of type "Use case" from "Use case diagram". I am using the below query to acheive this:

String oslcSearchForUseCaseDiagramQuery = queryCapabilityURI + "&oslc.prefix="

+ URLEncoder.encode("dcterms=<http://purl.org/dc/terms/>", "UTF8") + "," +

"&oslc.select=" + URLEncoder.encode("dcterms:title", "UTF8")+

"&oslc.where=" + URLEncoder.encode("dcterms:type=\"*\"", "UTF8");

But I think I have missed out something in the above query as am not able to get any artifacts by using "dcterms:type=use case".

Please provide your valuable inputs on the above issue.

Thanks in advance.

Regards,

Ankit

5 answers

Most liked answers ↑|Newest answers|Oldest answers

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Gabriel Ruelas (1.1k●1●3) | answered Oct 16 '12, 10:59 a.m.
Hi,
Try by using following query :
oslc.prefix=rm=<http://www.ibm.com/xmlns/rdm/rdf/>
&oslc.where=rm:ofType=<YOUR_TYPE_URL>

where YOUR_TYPE_URL is the URL of the Use Case type.
This value can be obtained from:
- The services document of the project in the Requirement Creation factory section
- The "oslc:instanceShape" entry of a returned RDF requirement representation.


Comments
Ankit Jain commented Oct 23 '12, 4:55 a.m.

Hi Gabriel,

I am not aware of how to get service document in the Requirement Creation factory section. Please provide me your suggestion.

Thanks in advance.

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Gabriel Ruelas (1.1k●1●3) | answered Oct 23 '12, 9:00 a.m.
Hi, the steps to get the creation Factory information : 

Request the server's services:

    GET : https://grarrc.ibm.com:9443/rm/rootservices


    

From Response, get the Catalog entry: <oslc_rm:rmServiceProviders rdf:resource="https://grarrc.ibm.com:9443/rm/discovery/RMCatalog" />

    GET : https://grarrc.ibm.com:9443/rm/discovery/RMCatalog



The Catalog exposes the server project areas as an oslc:serviceProvider: 


    <oslc:ServiceProvider rdf:about="https://grarrc.ibm.com:9443/rm/discovery/_zpWqELrZEeG3OKR6fZ1svQ/services.xml">

        <dcterms:title rdf:parseType="Literal">CML_Project (Requirements)</dcterms:title>

        <jp:consumerRegistry rdf:resource="https://grarrc.ibm.com:9443/jts/process/project-areas/_zpWqELrZEeG3OKR6fZ1svQ/links"/>

        <oslc:details rdf:resource="https://grarrc.ibm.com:9443/jts/process/project-areas/_zpWqELrZEeG3OKR6fZ1svQ"/>

    </oslc:ServiceProvider>



 From the response, get the services offered for a specific project area: 

    GET https://grarrc.ibm.com:9443/rm/discovery/_zpWqELrZEeG3OKR6fZ1svQ/services.xml




The response contains information about the project. This document describes the usage of:

    - Requirements Creation Factory and Requirements Collections Creation Factory


<oslc:CreationFactory>

        <dcterms:title rdf:parseType="Literal">Requirement Creation Factory</dcterms:title>

        <oslc:creation rdf:resource="https://grarrc.ibm.com:9443/rm/requirementFactory?projectURL=https://grarrc.ibm.com:9443/jts/process/project-areas/_zpWqELrZEeG3OKR6fZ1svQ" />

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

        <oslc:resourceShape rdf:resource="https://grarrc.ibm.com:9443/rm/types/_0Z8ZgrrZEeG3OKR6fZ1svQ" />

        <oslc:resourceShape rdf:resource="https://grarrc.ibm.com:9443/rm/types/_0aWpMrrZEeG3OKR6fZ1svQ" />

        <oslc:resourceShape rdf:resource="https://grarrc.ibm.com:9443/rm/types/_0cxEALrZEeG3OKR6fZ1svQ" />

        <oslc:usage rdf:resource="http://open-services.net/ns/core#default" />

    </oslc:CreationFactory>

   
Comments
Ankit Jain commented Oct 23 '12, 10:20 a.m.

Hi Gabriel,

I am getting the specific project area as:

Project Area [JKE Banking (Requirements)]: https://vblrqtools-22:9443/rm/discovery/_-HElgsdjEeG8IPPrR9AlEQ/services.xml

Service Providers Catalog: https://vblrqtools-22:9443/rm/discovery/RMCatalog

Root services: https://vblrqtools-22:9443/rm/rootservices

The information on these are available as some samples present in "net.jazz.oslc.consumer.examples"

Now I am getting the specific project area, am still not able to find how to get the services offered for a specific project area.

Please provide me your suggestion.

Thanks in advance.

abhishek gour commented Mar 22 '13, 4:12 a.m.

u have to add 
Accept: application/rdf+xml
OSLC-Core-Version: 2.0

these two headers then it works

1
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Gabriel Ruelas (1.1k●1●3) | answered Oct 23 '12, 12:47 p.m.
Hi,
Did you check the code samples provided at the OSLC Workshop :

https://jazz.net/library/article/635

sample 4 and sample 5 shows hot to get data from the Services document of a project.
Comments
Ankit Jain commented Oct 29 '12, 1:42 a.m.

Hi Gabriel,

I am using the below query:

String oslcSearchForUseCaseDiagramQuery = "oslc.prefix=rm=<http://www.ibm.com=\"\"" +

" xmlns=\"\" rdm=\"\" rdf=\"\"/>" +"&oslc.where=rm:ofType=<https://vblrqtools-22:9443=\"\" rdm=\"\" types=_LGIc9sdkEeG8IPPrR9AlEQ=>";

Am getting error with the above query. Please suggest me if there is something wrong that I am trying?

Gabriel Ruelas commented Oct 29 '12, 10:59 a.m.

Is "rdm" is the name of your application ? or is it "rm" ?

Ankit Jain commented Oct 30 '12, 9:50 a.m.

It is "rm" type.

Gabriel Ruelas commented Oct 30 '12, 11:02 a.m.

is your query using rdm or RM ( based on your post above it looks like rdm is being used )

Ankit Jain commented Oct 31 '12, 12:45 a.m.

Thanks for pointing out the mistake. But now I have changed my query to "rm". I have attached the error log from RM server in the below post. Please suggest me where I need to correct my query?

Ankit Jain commented Nov 02 '12, 1:25 a.m.

Hi Gabriel,

Below is the snippet of the log from the RM Server:

Error when converting:
oslc.prefix=rm=<http://www.ibm.com="" xmlns="" rm="" rdf=""/>&
oslc.where=rm:ofType=<https://vblrqtools-22:9443="" rm="" types=_LGIc9sdkEeG8IPPrR9AlEQ=>
com.ibm.oslc.query.parser.select.ParseException: Invalid prefix definition: rm=<http://www.ibm.com="" xmlns="" rm="" rdf=""/>

Please advise me where I need to correct my query?

showing 5 of 6 show 1 more comments
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Ankit Jain (21●1●3●7) | answered Oct 29 '12, 1:42 a.m.

Hi Gabriel,

Am getting the below error:

java.lang.Exception: Error occured while posting

HTTP/1.1 500 Internal Server Error

at net.jazz.oslc.utils.HttpUtils.sendPostForSecureDocument(HttpUtils.java:313)

at net.jazz.oslc.consumer.examples.Example07.performQuery(Example07.java:113)

Please suggest me if there is something wrong that I am trying?

Comments
Gabriel Ruelas commented Oct 29 '12, 11:01 a.m.

Can not determine from current information which could be the problem, I suggest to check the RM Server log for more information about the problem.

Ankit Jain commented Oct 30 '12, 9:54 a.m.

Error when converting:
oslc.prefix=rm=<http://www.ibm.com="" xmlns="" rm="" rdf=""/>&
oslc.where=rm:ofType=<https://vblrqtools-22:9443="" rm="" types=_LGIc9sdkEeG8IPPrR9AlEQ=>
com.ibm.oslc.query.parser.select.ParseException: Invalid prefix definition: rm=<http://www.ibm.com="" xmlns="" rm="" rdf=""/>

Ankit Jain commented Oct 30 '12, 10:02 a.m.

Please tell me where I have to make correction in my query? Is it "quotes" that I have not used properly?

Gabriel Ruelas commented Nov 06 '12, 5:02 p.m.

Hi,
Sorry I was out on vacations, Any look with the query?

Ankit Jain commented Nov 08 '12, 7:13 a.m.

Hi Gabriel,

I am getting the error while running the query. Not sure where i went wrong.
The error log from the RM server is:
Error when converting:
oslc.prefix=rm=<http://www.ibm.com="" xmlns="" rm="" rdf=""/>&
oslc.where=rm:ofType=<https://vblrqtools-22:9443="" rm="" types=_LGIc9sdkEeG8IPPrR9AlEQ=>
com.ibm.oslc.query.parser.select.ParseException: Invalid prefix definition: rm=<http://www.ibm.com="" xmlns="" rm="" rdf=""/>

0
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Ankit Jain (21●1●3●7) | answered Nov 12 '12, 4:09 a.m.
Hi Gabriel,

I am getting the error while running the query. Not sure where i went wrong.
The error log from the RM server is:
Error when converting:
oslc.prefix=rm=<http://www.ibm.com="" xmlns="" rm="" rdf=""/>&
oslc.where=rm:ofType=<https://vblrqtools-22:9443="" rm="" types=_LGIc9sdkEeG8IPPrR9AlEQ=>
com.ibm.oslc.query.parser.select.ParseException: Invalid prefix definition: rm=<http://www.ibm.com="" xmlns="" rm="" rdf=""/>


--------------------------------------------------------------------------------
Please advise me where I need to correct my query?

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