fake data for sesame bug

App.java

package fd;

import java.io.Console;
import java.util.ArrayList;
import java.util.Calendar;
import org.openrdf.model.impl.StatementImpl;
import org.openrdf.model.impl.URIImpl;
import org.openrdf.query.QueryLanguage;
import org.openrdf.repository.RepositoryConnection;
import org.openrdf.repository.http.HTTPRepository;

public class App {
    public static class LOG {
        static Console console = System.console();
        static long old_time = 0;

        public static void print(String fmt, Object... args) {
            String msg = String.format(fmt, args);
            Calendar cal = Calendar.getInstance();
            long now = cal.getTimeInMillis();
            if (old_time == 0) {
                console.printf("[%s] (first call) %s\n", cal.getTime(), msg);
            } else {
                console.printf("[%s] (%d msec) %s\n", cal.getTime(), now - old_time, msg);
            }
            old_time = now;
        }
    }

    public static void main(String[] args) throws Exception {
        HTTPRepository repo = new HTTPRepository("http://localhost:8080/openrdf-sesame/", "tests");
        RepositoryConnection conn = repo.getConnection();
        fake3(conn, 1, 1000, false);
        fake3(conn, 1, 1000, true);
        fake3(conn, 100, 1000, false);
        LOG.print("Finished.");
    }

    private static void fake3(RepositoryConnection conn, int NPRED, int NSTMT, boolean move) throws Exception {
        String q;
        int stmt = 1;
        LOG.print("fake3: %d / %d, using move: %s", NPRED, NSTMT, move);
        LOG.print("clear");
        conn.clear();
        LOG.print("begin");
        conn.begin();
        ArrayList<StatementImpl> stmts = new ArrayList<StatementImpl>();
        URIImpl ctx = new URIImpl("urn:dataset:new");
        for (int j = 1; j <= NPRED; j++) {
            URIImpl pred = new URIImpl("urn:pred:" + j);
            for (int i = 1; i <= NSTMT; i++) {
                stmts.add(new StatementImpl(new URIImpl("urn:subj:" + stmt), pred, new URIImpl("urn:obj:" + i)));
                stmt += 1;
            }
        }
        LOG.print("add");
        conn.add(stmts, ctx);
        LOG.print("commit");
        conn.commit();
        LOG.print("Repo size: %d", conn.size());

        if (move) {
            LOG.print("begin");
            conn.begin();
            q = "MOVE <urn:dataset:new> TO <urn:dataset:1>";
            LOG.print("exec: %s", q);
            conn.prepareUpdate(QueryLanguage.SPARQL, q).execute();
            conn.commit();
            LOG.print("commit");
        } else {
            LOG.print("begin");
            conn.begin();
            q = "COPY <urn:dataset:new> TO <urn:dataset:1>";
            LOG.print("exec: %s", q);
            conn.prepareUpdate(QueryLanguage.SPARQL, q).execute();
            q = "DROP GRAPH <urn:dataset:new>";
            LOG.print("exec: %s", q);
            conn.prepareUpdate(QueryLanguage.SPARQL, q).execute();
            conn.commit();
            LOG.print("commit");
        }
    }
}