/*
 * (c) Copyright 2008 Hewlett-Packard Development Company, LP
 * All rights reserved.
 * [See end of file]
 */

package dev;

import org.jrdf.graph.Node;
import org.jrdf.graph.ObjectNode;
import org.jrdf.graph.PredicateNode;
import org.jrdf.graph.SubjectNode;
import org.mulgara.itql.ItqlInterpreterBean;
import org.mulgara.query.Answer;
import org.mulgara.query.ConstraintExpression;
import org.mulgara.query.Query;
import org.mulgara.query.Variable;
import org.mulgara.query.rdf.BlankNodeImpl;
import org.mulgara.server.Session;

import com.hp.hpl.jena.mulgara.JenaMulgara;

public class Dev
{
    public static void main(String ...args) throws Exception
    {
        String server = "rmi://localhost/server1" ;
        String graphURI = server+"#model1" ;
        Session session = JenaMulgara.createSession(server) ;
        
        ItqlInterpreterBean interpreter = new ItqlInterpreterBean() ;
        String qs = "select $s $p  from <rmi://localhost/server1#model1> where $s $p 'M_BLANK'" ;
        Query query = interpreter.buildQuery(qs) ;
        Answer answer = session.query(query) ;
        answer.beforeFirst() ;
        System.out.printf("Count = %d\n", answer.getRowCount()) ;
        
        Node b = null ;
        while(answer.next())
        {
            Node s = (SubjectNode)answer.getObject("s") ;
            b = s ;
            
            
            Node p = (PredicateNode)answer.getObject("p") ;
            System.out.printf("s = %s\n", s) ;
            
            //Node o = (ObjectNode)answer.getObject("o") ;
            //System.out.printf("%s %s %s\n", s, p, o) ;
        }
        System.out.printf("End answer\n") ;
        
        Variable v = new Variable("s") ;
        
        Query query2 = interpreter.buildQuery("select $s $p $o from <rmi://localhost/server1#model1> where $s $p $o" ) ;
        
        ConstraintExpression e = new org.mulgara.query.ConstraintIs(v, (BlankNodeImpl)b);
        e = new org.mulgara.query.ConstraintConjunction(query2.getConstraintExpression(), e) ;
        query2 = new Query(query2, e) ;
        answer = session.query(query2) ;
        answer.beforeFirst() ;
        System.out.printf("Count = %d\n", answer.getRowCount()) ;
        
        while(answer.next())
        {
            Node s = (SubjectNode)answer.getObject("s") ;
            Node p = (PredicateNode)answer.getObject("p") ;
            Node o = (ObjectNode)answer.getObject("o") ;
            System.out.printf("%s %s %s\n", s, p, o) ;
        }
        System.out.printf("End answer\n") ;
        
        
    }
}

/*
 * (c) Copyright 2008 Hewlett-Packard Development Company, LP
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */