/*
* Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* questions.
*/
/*
* @test
* @summary Tests just a benchmark of introspector performance
* @author Mark Davidson
* @run main/manual TestIntrospector
*/
import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
/**
* This test is just a benchmark of introspector performance.
*/
public class TestIntrospector {
private static final Class[] TYPES = {
javax.swing.Box.class,
javax.swing.DefaultComboBoxModel.class,
javax.swing.DefaultCellEditor.class,
javax.swing.DefaultComboBoxModel.class,
javax.swing.DefaultListModel.class,
javax.swing.ImageIcon.class,
javax.swing.JApplet.class,
javax.swing.JButton.class,
javax.swing.JCheckBox.class,
javax.swing.JColorChooser.class,
javax.swing.JComboBox.class,
javax.swing.JDesktopPane.class,
javax.swing.JDialog.class,
javax.swing.JEditorPane.class,
javax.swing.JFileChooser.class,
javax.swing.JFrame.class,
javax.swing.JInternalFrame.class,
javax.swing.JLabel.class,
javax.swing.JList.class,
javax.swing.JMenu.class,
javax.swing.JMenuBar.class,
javax.swing.JMenuItem.class,
javax.swing.JOptionPane.class,
javax.swing.JPanel.class,
javax.swing.JPasswordField.class,
javax.swing.JPopupMenu.class,
javax.swing.JProgressBar.class,
javax.swing.JRadioButton.class,
javax.swing.JRadioButtonMenuItem.class,
javax.swing.JRootPane.class,
javax.swing.JScrollPane.class,
javax.swing.JSeparator.class,
javax.swing.JSlider.class,
javax.swing.JSplitPane.class,
javax.swing.JTabbedPane.class,
javax.swing.JTable.class,
javax.swing.JTextField.class,
javax.swing.JTextArea.class,
javax.swing.JTextPane.class,
javax.swing.JToggleButton.class,
javax.swing.JToolBar.class,
javax.swing.JToolTip.class,
javax.swing.JTree.class,
javax.swing.JWindow.class,
java.awt.Button.class,
java.awt.Canvas.class,
java.awt.Checkbox.class,
java.awt.Choice.class,
java.awt.Dialog.class,
java.awt.FileDialog.class,
java.awt.Frame.class,
java.awt.Image.class,
java.awt.List.class,
java.awt.Menu.class,
java.awt.MenuBar.class,
java.awt.MenuItem.class,
java.awt.Panel.class,
java.awt.Point.class,
java.awt.Rectangle.class,
java.awt.Scrollbar.class,
java.awt.TextArea.class,
java.awt.TextField.class,
java.awt.Window.class,
};
public static void main(String[] args) throws IntrospectionException {
StringBuilder sb = null;
if (args.length > 0) {
if (args[0].equals("show")) {
sb = new StringBuilder(65536);
}
}
Introspector.flushCaches();
int count = (sb != null) ? 10 : 100;
long time = -System.currentTimeMillis();
for (int i = 0; i < count; i++) {
test(sb);
test(sb);
Introspector.flushCaches();
}
time += System.currentTimeMillis();
System.out.println("Time (average): " + time / count);
}
private static void test(StringBuilder sb) throws IntrospectionException {
long time = 0L;
if (sb != null) {
sb.append("Time\t#Props\t#Events\t#Methods\tClass\n");
sb.append("----------------------------------------");
time = -System.currentTimeMillis();
}
for (Class type : TYPES) {
test(sb, type);
}
if (sb != null) {
time += System.currentTimeMillis();
sb.append("\nTime: ").append(time).append(" ms\n");
System.out.println(sb);
sb.setLength(0);
}
}
private static void test(StringBuilder sb, Class type) throws IntrospectionException {
long time = 0L;
if (sb != null) {
time = -System.currentTimeMillis();
}
BeanInfo info = Introspector.getBeanInfo(type);
if (sb != null) {
time += System.currentTimeMillis();
sb.append('\n').append(time);
sb.append('\t').append(info.getPropertyDescriptors().length);
sb.append('\t').append(info.getEventSetDescriptors().length);
sb.append('\t').append(info.getMethodDescriptors().length);
sb.append('\t').append(type.getName());
}
}
}