J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @test |
| 26 | * @run main/manual TestVetoableChangeSupport |
| 27 | * @summary Tests just a benchmark of VetoableChangeSupport performance |
| 28 | * @author Sergey Malenkov |
| 29 | */ |
| 30 | |
| 31 | import java.beans.PropertyChangeEvent; |
| 32 | import java.beans.PropertyVetoException; |
| 33 | import java.beans.VetoableChangeListener; |
| 34 | import java.beans.VetoableChangeSupport; |
| 35 | |
| 36 | public class TestVetoableChangeSupport implements VetoableChangeListener { |
| 37 | private static final String NAME = "property"; |
| 38 | |
| 39 | public static void main(String[] args) throws PropertyVetoException { |
| 40 | for (int i = 1; i <= 3; i++) { |
| 41 | test(i, 1, 10000000); |
| 42 | test(i, 10, 1000000); |
| 43 | test(i, 100, 100000); |
| 44 | test(i, 1000, 10000); |
| 45 | test(i, 10000, 1000); |
| 46 | test(i, 20000, 1000); |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | private static void test(int step, int listeners, int attempts) throws PropertyVetoException { |
| 51 | TestVetoableChangeSupport test = new TestVetoableChangeSupport(); |
| 52 | VetoableChangeSupport vcs = new VetoableChangeSupport(test); |
| 53 | PropertyChangeEvent eventNull = new PropertyChangeEvent(test, null, null, null); |
| 54 | PropertyChangeEvent eventName = new PropertyChangeEvent(test, NAME, null, null); |
| 55 | long time1 = System.currentTimeMillis(); |
| 56 | for (int i = 0; i < listeners; i++) { |
| 57 | vcs.addVetoableChangeListener(test); |
| 58 | vcs.addVetoableChangeListener(NAME, test); |
| 59 | } |
| 60 | long time2 = System.currentTimeMillis(); |
| 61 | for (int i = 0; i < attempts; i++) { |
| 62 | vcs.fireVetoableChange(eventNull); |
| 63 | vcs.fireVetoableChange(eventName); |
| 64 | } |
| 65 | long time3 = System.currentTimeMillis(); |
| 66 | time1 = time2 - time1; // time of adding the listeners |
| 67 | time2 = time3 - time2; // time of firing the events |
| 68 | System.out.println("Step: " + step |
| 69 | + "; Listeners: " + listeners |
| 70 | + "; Attempts: " + attempts |
| 71 | + "; Time (ms): " + time1 + "/" + time2); |
| 72 | } |
| 73 | |
| 74 | public void vetoableChange(PropertyChangeEvent event) { |
| 75 | } |
| 76 | } |