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.io.Serializable;
32import java.rmi.Remote;
33import java.rmi.RemoteException;
34import java.rmi.server.UnicastRemoteObject;
35
36/**
37 * Benchmark for testing speed of calls with object tree parameters and return
38 * values.
39 */
40public class ObjTreeCalls implements Benchmark {
41
42    static class Node implements Serializable {
43        boolean z;
44        byte b;
45        char c;
46        short s;
47        int i;
48        float f;
49        long j;
50        double d;
51        String str = "bodega";
52        Object parent, left, right;
53
54        Node(Object parent, int depth) {
55            this.parent = parent;
56            if (depth > 0) {
57                left = new Node(this, depth - 1);
58                right = new Node(this, depth - 1);
59            }
60        }
61    }
62
63    interface Server extends Remote {
64        public Node call(Node val) throws RemoteException;
65    }
66
67    static class ServerImpl extends UnicastRemoteObject implements Server {
68        public ServerImpl() throws RemoteException {
69        }
70
71        public Node call(Node val) throws RemoteException {
72            return val;
73        }
74    }
75
76    static class ServerFactory implements BenchServer.RemoteObjectFactory {
77        public Remote create() throws RemoteException {
78            return new ServerImpl();
79        }
80    }
81
82    /**
83     * Issue calls using trees of objects as parameters/return values.
84     * Arguments: <tree depth> <# calls>
85     */
86    public long run(String[] args) throws Exception {
87        int depth = Integer.parseInt(args[0]);
88        int reps = Integer.parseInt(args[1]);
89        BenchServer bsrv = Main.getBenchServer();
90        Server stub = (Server) bsrv.create(new ServerFactory());
91        Node node = new Node(null, depth);
92
93        long start = System.currentTimeMillis();
94        for (int i = 0; i < reps; i++)
95            stub.call(node);
96        long time = System.currentTimeMillis() - start;
97
98        bsrv.unexport(stub, true);
99        return time;
100    }
101}
102