CODEWITHSUNDEEP
javardfjenaapache-jena
rathod151
rathod151

Reputation: 97

Convert Java Object to RDF XML

I want to convert Java object to RDF XML. I am using Jena API. I don't want to call any REST call.

On REST method, we can write: 

@Produces(OslcMediaType.APPLICATION_RDF_XML)

So it sends the response in RDF XML format.

I can't use this, because I am already in one REST method. I can call another REST call to convert an object to RDF. But I don't want to call another REST call.

Does anyone has another solution to convert Java object to RDF XML?

Upvotes: 1

Views: 1294

Answers (1)

Noor
Noor

Reputation: 20140

You can create your own RDF Serializer for you class and you can use Jena API. Here is a very naive example: 

public class Person {
    String name;
    int age;
    Person(String name){
        this.name = name;
    }
    String getIRI(){
        return "http://example.com/"+name;
    }
    String serialize(String syntax){
        Model model = ModelFactory.createDefaultModel();
        Resource resource = model.createResource(getIRI());
        // add the property
        resource.addProperty(FOAF.name, name);
        StringWriter out = new StringWriter();
        model.write(out, syntax);
        return out.toString();
    }
}

To serialize the class, call Person p1 = new Person("Noor");. p1.serialize("RDF/XML-ABBREV")

Upvotes: 2

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