[jira] [Resolved] (JENA-183) Different outputs when using Stmt.createReifiedStatement()

["Andy Seaborne (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/JENA-183?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andy Seaborne resolved JENA-183.
--------------------------------

    Resolution: Won't Fix

See http://jena.apache.org/documentation/io/iohowto.html#advanced-rdfxml-output for controlling output (you may be able to turn of using rdf:ID on properties for compact reification)

Consider using  "RDF/XML" for simpler output of RDF.

                
> Different outputs when using Stmt.createReifiedStatement()
> ----------------------------------------------------------
>
>                 Key: JENA-183
>                 URL: https://issues.apache.org/jira/browse/JENA-183
>             Project: Apache Jena
>          Issue Type: Wish
>          Components: RDF/XML
>         Environment: Jena 2.6.4
>            Reporter: Srimanth
>            Priority: Minor
>
> I have a model which contains a reified statement. Depending on what URLs I use for the resources, I get different valid outputs - which is inconsistent. 
> I need to consistently generate one format as I have to document in our specification how it will be. There could be simple XML parsers which consume it.
> Code:
> ===================================================
> public class JenaReifiedProblem {
>        private static final String someBase = "http://someserver/myapp";
>        public static void main(String[] args) {
>                generate1("http://localhost:8080");
>                System.out.println("---------");
>                generate1("http://localhost:8080/app");
>                System.out.println("---------");
>        }
>        public static void generate1(String serverURL) {
>                Model model = ModelFactory.createDefaultModel();
>                model.setNsPrefix("dcterms", DCTerms.NS);
>                Resource agent = model.createResource(serverURL+"/agent1", DCTerms.Agent);
>                Resource fileFormat = model.createResource("http://formatsite.org/fileformat", DCTerms.FileFormat);
>                fileFormat.addProperty(DCTerms.title, "TXT");
>                agent.addProperty(DCTerms.format, fileFormat);
>                agent.addProperty(DCTerms.relation, model.createResource(serverURL+"/agent2"));
>                ReifiedStatement rs = agent.getProperty(DCTerms.relation).createReifiedStatement(someBase+"#relationship");
>                rs.addProperty(DCTerms.title, "My releationship");
>                model.write(System.out, "RDF/XML-ABBREV", someBase);
>        }
> }
> ===================================================
> Output:
> ===================================================
> <rdf:RDF
>    xmlns:dcterms="http://purl.org/dc/terms/"
>    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
>  <dcterms:Agent rdf:about="http://localhost:8080/agent1">
>    <dcterms:relation rdf:ID="relationship" rdf:resource="http://localhost:8080/agent2"/>
>    <dcterms:format>
>      <dcterms:FileFormat rdf:about="http://formatsite.org/fileformat">
>        <dcterms:title>TXT</dcterms:title>
>      </dcterms:FileFormat>
>    </dcterms:format>
>  </dcterms:Agent>
>  <rdf:Statement rdf:about="#relationship">
>    <dcterms:title>My releationship</dcterms:title>
>  </rdf:Statement>
> </rdf:RDF>
> ---------
> <rdf:RDF
>    xmlns:dcterms="http://purl.org/dc/terms/"
>    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
>  <dcterms:FileFormat rdf:about="http://formatsite.org/fileformat">
>    <dcterms:title>TXT</dcterms:title>
>  </dcterms:FileFormat>
>  <rdf:Statement rdf:ID="relationship">
>    <rdf:subject>
>      <dcterms:Agent rdf:about="http://localhost:8080/app/agent1">
>        <dcterms:relation rdf:resource="http://localhost:8080/app/agent2"/>
>        <dcterms:format rdf:resource="http://formatsite.org/fileformat"/>
>      </dcterms:Agent>
>    </rdf:subject>
>    <rdf:predicate rdf:resource="http://purl.org/dc/terms/relation"/>
>    <rdf:object rdf:resource="http://localhost:8080/app/agent2"/>
>    <dcterms:title>My releationship</dcterms:title>
>  </rdf:Statement>
> </rdf:RDF>
> ---------
> ===================================================

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