/**
 * A very simple example that shows how to create a Dublin Core
 * description of papers with authors (creators).
 */

//Import every class and interface by name.
import java.io.PrintWriter;
import java.io.OutputStream;
import java.io.FileOutputStream;

//The Dublin Core
import com.hp.hpl.mesa.rdf.jena.vocabulary.DC;

//Use the memory model implementation
import com.hp.hpl.mesa.rdf.jena.mem.ModelMem;

//Model package imports
import com.hp.hpl.mesa.rdf.jena.model.Model;
import com.hp.hpl.mesa.rdf.jena.model.Resource;
import com.hp.hpl.mesa.rdf.jena.model.Property; 
import com.hp.hpl.mesa.rdf.jena.model.Statement; 
import com.hp.hpl.mesa.rdf.jena.model.StmtIterator;
import com.hp.hpl.mesa.rdf.jena.model.RDFNode;
import com.hp.hpl.mesa.rdf.jena.model.RDFException;
 
public class DublinCoreEx6{
  String subjectUri="http://.../CMCS/Entries/X";
  String space=" ";
  
  Model model=null;
  Resource publication=null;

  public DublinCoreEx6() throws RDFException {
    //Create a new model
    model=new ModelMem();
    publication=model.createResource(subjectUri);
  }
  
  public void addCreator(String creatorUri) throws RDFException{
    publication.addProperty(DC.creator,creatorUri);
  }

  public void addTitle(String title) throws RDFException{
    publication.addProperty(DC.title,title);
  }
  
  /**
   * Prints the model out as RDF XML
   */
  public void printRDFXML(OutputStream out) throws RDFException {
    model.write(new PrintWriter(out),"RDF/XML-ABBREV");
  }
  
  /**
   * Prints the model as a set of triples
   */
  public void printTriples() throws RDFException{
    StmtIterator iter=model.listStatements();
    while (iter.hasNext()){
      Statement stmt=iter.next();
      Resource subject=stmt.getSubject();
      Property predicate=stmt.getPredicate();
        RDFNode obj=stmt.getObject();
        
        String thing=subject.toString()+space+predicate+space;
        if(obj instanceof Resource) {
          thing+=obj.toString();
        }
        else {
          thing+=obj.toString();
        }
        System.out.println(thing);
      }  
  }
  
  public static void main(String[] args) throws Exception{

    String creatorUri1="http://cgl.indiana.edu/people/GCF";
    String creatorUri2="http://cgl.indiana.edu/people/MEP";
    
    DublinCoreEx6 dc=new DublinCoreEx6();
    dc.addCreator(creatorUri2);
    dc.addTitle("H2O");
    dc.printRDFXML(new FileOutputStream("junk.out"));
  }
}