leveldb.test.Test Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of SWBTripleStoreLevelDB Show documentation
TripleStore implementation for SemanticWebBuilder using LevelDB
The newest version!
package leveldb.test;

import java.io.IOException;
import java.util.HashMap;
import org.semanticwb.store.Graph;
import org.semanticwb.store.Triple;
import org.semanticwb.store.TripleIterator;
import org.semanticwb.store.leveldb.GraphImp;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author javier.solis.g
 */
public class Test
{
    public static void main(String[] args) throws IOException
    {
        System.out.println("Init...");
        long time = System.currentTimeMillis();
        
        HashMap params=new HashMap();
        params.put("path", "/data/leveldb");
                
        Graph graph = new GraphImp("swb",params);
        graph.setTransactionEnabled(false);
        //graph.setEncodeURIs(false);

        System.out.println("time db:" + (System.currentTimeMillis() - time));
        time = System.currentTimeMillis();
        
        try
        {
            System.out.println("size:" + graph.count());

            System.out.println("time size:" + (System.currentTimeMillis() - time));
            time = System.currentTimeMillis();

    //************* TEST  

            if (graph.count() < 5000000)
            {
                try
                {
                    graph.load("/data/bench/infoboxes-fixed.nt", graph.count(), graph.count() + 5000000);
                } catch (Exception e)
                {
                    e.printStackTrace();
                }

                System.out.println("time insert:" + (System.currentTimeMillis() - time));
                time = System.currentTimeMillis();
            }

            System.out.println(graph.count());          
            System.out.println("time size:" + (System.currentTimeMillis() - time));
            time = System.currentTimeMillis();
            
            int z=1;            
            long x=0;
            
            x=0;
            for (z = 0; z < 1000; z++)
            {               
                TripleIterator it=graph.findTriples(new Triple("", "", ""));                            
                x=it.count();
//                while (it.hasNext())
//                {
//                    Triple triple = it.next();
//                    //System.out.println(triple);
//                    x++;
//                }
            }

            System.out.println("time find 1:" + x+" "+(System.currentTimeMillis() - time));
            time = System.currentTimeMillis();
            
            x=0; 
//            for (z = 0; z < 1000; z++)
            {
                TripleIterator it=graph.findTriples(new Triple("", null,null),true);            
//                x=it.count();
                while (it.hasNext())
                {
                    Triple triple = it.next();
                    System.out.println(triple);
                    x++;
                }
            }

            System.out.println("time find 2:" + x+" "+ (System.currentTimeMillis() - time));
            time = System.currentTimeMillis();

            x=0; 
//            for (z = 0; z < 1000; z++)
            {
                TripleIterator it=graph.findTriples(new Triple(null, "", "\"richer\""),null,100L,0L,true);            
//                x=it.count();
                while (it.hasNext())
                {
                    Triple triple = it.next();
                    System.out.println(triple);
                    x++;
                }
            }

            System.out.println("time find 3:" + x+" "+ (System.currentTimeMillis() - time));
            time = System.currentTimeMillis();

//*
            //Test remove
            if (false)
            {
                graph.removeTriples(new Triple(null, "", "\"richer\""));

                System.out.println("time remove:" + (System.currentTimeMillis() - time));
                time = System.currentTimeMillis();

                x=0; 
                //for (z = 0; z < 1000; z++)
                {
                    TripleIterator it=graph.findTriples(new Triple(null, "", "\"richer\""));            
                    x=it.count();
                }

                System.out.println("time find remove:" + x+" "+ (System.currentTimeMillis() - time));
                time = System.currentTimeMillis();

            }
            
            //Thread.sleep(20000L);
            
    //*/
            
            
            
        }catch(Exception e)
        {
            e.printStackTrace();
        }finally
        {
            time = System.currentTimeMillis();
            graph.close();
            System.out.println("time fin:" + (System.currentTimeMillis() - time));
        }

    }
}