1/*
2 * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 *
26 */
27
28package bench.rmi;
29
30import bench.Benchmark;
31import java.rmi.server.RMIClassLoader;
32import java.security.CodeSource;
33
34/**
35 * Benchmark for testing speed of repeated loading of a class not found in
36 * classpath.
37 */
38public class ClassLoading implements Benchmark {
39
40    static final String ALTROOT = "!/bench/rmi/altroot/";
41    static final String CLASSNAME = "Node";
42
43    /**
44     * Repeatedly load a class not found in classpath through RMIClassLoader.
45     * Arguments: <# reps>
46     */
47    public long run(String[] args) throws Exception {
48        int reps = Integer.parseInt(args[0]);
49        CodeSource csrc = getClass().getProtectionDomain().getCodeSource();
50        String url = "jar:" + csrc.getLocation().toString() + ALTROOT;
51
52        long start = System.currentTimeMillis();
53        for (int i = 0; i < reps; i++)
54            RMIClassLoader.loadClass(url, CLASSNAME);
55        long time = System.currentTimeMillis() - start;
56
57        return time;
58    }
59}
60