import com.hp.hpl.jena.rdf.model.*;
import java.io.*;

public class example1 extends Object {
    
    public static void main (String args[]) {

	Model model = ModelFactory.createDefaultModel();

	// use the class loader to find the input file
	InputStream in = example1.class
	    .getClassLoader()
	    .getResourceAsStream("foaf.rdf");
	if (in == null) {
	    throw new IllegalArgumentException(
		    "File: not found");
	}

	// read the RDF/XML file - the URI is used to turn relative URLS
	// into absolute URLs
	model.read(new InputStreamReader(in), "http://www.cs.usfca.edu/");

	//print out the model as a set of triples
	StmtIterator iter = model.listStatements();

	// print out the predicate, subject and object of each statement
	while (iter.hasNext()) {
	    Statement stmt      = iter.nextStatement();  // get next statement
	    Resource  subject   = stmt.getSubject();     // get the subject
	    Property  predicate = stmt.getPredicate();   // get the predicate
	    RDFNode   object    = stmt.getObject();      // get the object

	    System.out.print(subject.toString());
	    System.out.print(" " + predicate.toString() + " ");
	    if (object instanceof Resource) {
		System.out.print(object.toString());
	    } else {
		// object is a literal
		System.out.print(" \"" + object.toString() + "\"");
	    }
	}	
	// Now let's find all the 'knows' nodes

	Property knows = model.getProperty(FOAF.getURI(), "knows");
        NodeIterator niter = model.listObjectsOfProperty(knows);
        while(niter.hasNext()){
            RDFNode node = niter.nextNode();

	    

        }

	// write it to standard out
	model.write(System.out);

    }
}