/*

 * 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

 * or visit www.oracle.com if you need additional information or have any

 * questions.

 */

/*

 * @test

 * @bug 4682386

 * @summary Tests for PropertyChangeSupport refactoring

 * @author Mark Davidson

 */

import java.beans.Beans;

import java.beans.IntrospectionException;

import java.beans.Introspector;

import java.beans.PropertyChangeEvent;

import java.beans.PropertyChangeListener;

import java.beans.PropertyChangeSupport;

import java.beans.PropertyDescriptor;

import java.lang.reflect.Method;

import javax.swing.JApplet;

import javax.swing.JButton;

import javax.swing.JCheckBox;

import javax.swing.JComboBox;

import javax.swing.JComponent;

import javax.swing.JLabel;

import javax.swing.JList;

import javax.swing.JMenuItem;

import javax.swing.JProgressBar;

import javax.swing.JTextArea;

import javax.swing.JTextPane;

import javax.swing.JTextField;

import javax.swing.JToolBar;

import javax.swing.JTabbedPane;

import javax.swing.JTree;

import javax.swing.JTable;

/**

 * This class tests the multi-threaded access to PropertyChangeSupport and

 * will also use reflection to test propertyChanges on Swing components.

 * <p/>

 * There is no new functionality from the implementation of this RFE.

 * Semantically, it should be equivalent.

 */

public class Test4682386 {

    private static final String FOO = "foo";

    private static final String BAR = "bar";

    private static final int NUM_LISTENERS = 100;

    private static final boolean DEBUG = true;

    private static final Class[] TYPES = {

            JApplet.class,

            JButton.class,

            JCheckBox.class,

            JComboBox.class,

            JLabel.class,

            JList.class,

            JMenuItem.class,

            JProgressBar.class,

            JTextArea.class,

            JTextPane.class,

            JTextField.class,

            JToolBar.class,

            JTabbedPane.class,

            JTree.class,

            JTable.class,

    };

    public static void main(String[] args) {

        testSwingProperties();

        // tests the multi-threaded access

        TestBean bean = new TestBean();

        Thread add = new Thread(new AddThread(bean));

        Thread remove = new Thread(new RemoveThread(bean));

        Thread prop = new Thread(new PropertyThread(bean));

        add.start();

        prop.start();

        remove.start();

    }

    /**

     * Should be exectuted with $JAVA_HOME/lib/dt.jar in the classpath

     * so that there will be a lot more bound properties.

     * <p/>

     * This test isn't really appropriate for automated testing.

     */

    private static void testSwingProperties() {

        long start = System.currentTimeMillis();

        for (Class type : TYPES) {

            try {

                Object bean = Beans.instantiate(type.getClassLoader(), type.getName());

                JComponent comp = (JComponent) bean;

                for (int k = 0; k < NUM_LISTENERS; k++) {

                    comp.addPropertyChangeListener(new PropertyListener());

                }

                for (PropertyDescriptor pd : getPropertyDescriptors(type)) {

                    if (pd.isBound()) {

                        if (DEBUG) {

                            System.out.println("Bound property found: " + pd.getName());

                        }

                        Method read = pd.getReadMethod();

                        Method write = pd.getWriteMethod();

                        try {

                            write.invoke(

                                    bean,

                                    getValue(

                                            pd.getPropertyType(),

                                            read.invoke(bean)));

                        } catch (Exception ex) {

                            // do nothing - just move on.

                            if (DEBUG) {

                                System.out.println("Reflective method invocation Exception for " + type + " : " + ex.getMessage());

                            }

                        }

                    }

                }

            } catch (Exception ex) {

                // do nothing - just move on.

                if (DEBUG) {

                    System.out.println("Exception for " + type.getName() +

                            " : " + ex.getMessage());

                }

            }

        }

        System.out.println("Exec time (ms): " + (System.currentTimeMillis() - start));

    }

    /**

     * Gets a fake value from a type and old value;

     */

    public static Object getValue(Class type, Object value) {

        if (String.class.equals(type)) {

            return "test string";

        }

        if (value instanceof Integer) {

            Integer i = (Integer) value;

            return Integer.valueOf(i + 1);

        }

        if (value instanceof Boolean) {

            Boolean b = (Boolean) value;

            return Boolean.valueOf(!b);

        }

        return null;

    }

    public static PropertyDescriptor[] getPropertyDescriptors(Class type) {

        try {

            return Introspector.getBeanInfo(type).getPropertyDescriptors();

        } catch (IntrospectionException exception) {

            throw new Error("unexpected exception", exception);

        }

    }

    private static void sleep(long ms) {

        try {

            Thread.sleep(ms);

        } catch (InterruptedException exception) {

        }

    }

    private static class AddThread implements Runnable {

        private final TestBean bean;

        AddThread(TestBean bean) {

            this.bean = bean;

        }

        public void run() {

            for (int i = 0; i < NUM_LISTENERS; i++) {

                for (int j = 0; j < 10; j++) {

                    this.bean.addPropertyChangeListener(new PropertyListener());

                }

                if (DEBUG) {

                    System.out.println("10 listeners added");

                }

                sleep(25L);

            }

        }

    }

    private static class RemoveThread implements Runnable {

        private final TestBean bean;

        RemoveThread(TestBean bean) {

            this.bean = bean;

        }

        public void run() {

            for (int k = 0; k < NUM_LISTENERS; k++) {

                sleep(100L);

                PropertyChangeListener[] listeners = this.bean.getPropertyChangeListners();

                for (int i = listeners.length - 1; i >= 0; i--) {

                    this.bean.removePropertyChangeListener(listeners[i]);

                }

                if (DEBUG) {

                    System.out.println(listeners.length + " listeners removed");

                }

            }

        }

    }

    private static class PropertyThread implements Runnable {

        private final TestBean bean;

        PropertyThread(TestBean bean) {

            this.bean = bean;

        }

        public void run() {

            for (int i = 0; i < NUM_LISTENERS; i++) {

                boolean flag = this.bean.isFoo();

                this.bean.setFoo(!flag);

                this.bean.setBar(Boolean.toString(flag));

                if (DEBUG) {

                    System.out.println("Executed property changes");

                }

                sleep(40L);

            }

        }

    }

    /**

     * Handler for the property change events.

     */

    private static class PropertyListener implements PropertyChangeListener {

        public void propertyChange(PropertyChangeEvent event) {

            // blank since this should execute as fast as possible.

        }

    }

    /**

     * A simple bean to test multi-threaded acccess to the listeners.

     */

    public static class TestBean {

        private final PropertyChangeSupport pcs = new PropertyChangeSupport(this);

        private boolean foo;

        private String bar;

        public void addPropertyChangeListener(PropertyChangeListener listener) {

            this.pcs.addPropertyChangeListener(listener);

        }

        public void removePropertyChangeListener(PropertyChangeListener listener) {

            this.pcs.removePropertyChangeListener(listener);

        }

        public PropertyChangeListener[] getPropertyChangeListners() {

            return this.pcs.getPropertyChangeListeners();

        }

        public boolean isFoo() {

            return this.foo;

        }

        public void setFoo(boolean foo) {

            boolean old = this.foo;

            this.foo = foo;

            this.pcs.firePropertyChange(FOO, old, foo);

        }

        public String getBar() {

            return this.bar;

        }

        public void setBar(String bar) {

            String old = this.bar;

            this.bar = bar;

            this.pcs.firePropertyChange(BAR, old, bar);

        }

    }

}