jdk/src/share/classes/sun/tools/jconsole/VMPanel.java
changeset 2 90ce3da70b43
child 55 5ecee29e98d8
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/tools/jconsole/VMPanel.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,673 @@
+/*
+ * Copyright 2004-2006 Sun Microsystems, Inc.  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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package sun.tools.jconsole;
+
+import java.awt.*;
+import java.awt.event.*;
+import java.beans.*;
+import java.io.*;
+import java.lang.reflect.*;
+import java.util.*;
+import java.util.List;
+import java.util.Timer;
+
+import javax.swing.*;
+import javax.swing.plaf.*;
+
+import com.sun.tools.jconsole.JConsolePlugin;
+import com.sun.tools.jconsole.JConsoleContext;
+import static com.sun.tools.jconsole.JConsoleContext.ConnectionState.*;
+
+import static sun.tools.jconsole.ProxyClient.*;
+
+@SuppressWarnings("serial")
+public class VMPanel extends JTabbedPane implements PropertyChangeListener {
+    private ProxyClient proxyClient;
+    private Timer timer;
+    private int updateInterval;
+    private String hostName;
+    private int port;
+    private int vmid;
+    private String userName;
+    private String password;
+    private String url;
+    private VMInternalFrame vmIF = null;
+
+    private static final String windowsLaF =
+        "com.sun.java.swing.plaf.windows.WindowsLookAndFeel";
+
+    private static ArrayList<TabInfo> tabInfos = new ArrayList<TabInfo>();
+
+    private boolean wasConnected = false;
+
+    // The everConnected flag keeps track of whether the window can be
+    // closed if the user clicks Cancel after a failed connection attempt.
+    //
+    private boolean everConnected = false;
+
+    // The initialUpdate flag is used to enable/disable tabs each time
+    // a connect or reconnect takes place. This flag avoids having to
+    // enable/disable tabs on each update call.
+    //
+    private boolean initialUpdate = true;
+
+    // Each VMPanel has its own instance of the JConsolePlugin
+    // A map of JConsolePlugin to the previous SwingWorker
+    private Map<JConsolePlugin, SwingWorker<?,?>> plugins = null;
+    private boolean pluginTabsAdded = false;
+
+    // Update these only on the EDT
+    private JOptionPane optionPane;
+    private JProgressBar progressBar;
+    private long time0;
+
+    static {
+        tabInfos.add(new TabInfo(OverviewTab.class, OverviewTab.getTabName(), true));
+        tabInfos.add(new TabInfo(MemoryTab.class,  MemoryTab.getTabName(),  true));
+        tabInfos.add(new TabInfo(ThreadTab.class,  ThreadTab.getTabName(),  true));
+        tabInfos.add(new TabInfo(ClassTab.class,   ClassTab.getTabName(),   true));
+        tabInfos.add(new TabInfo(SummaryTab.class, SummaryTab.getTabName(), true));
+        tabInfos.add(new TabInfo(MBeansTab.class,  MBeansTab.getTabName(),  true));
+    }
+
+    public static TabInfo[] getTabInfos() {
+        return tabInfos.toArray(new TabInfo[tabInfos.size()]);
+    }
+
+    VMPanel(ProxyClient proxyClient, int updateInterval) {
+        this.proxyClient = proxyClient;
+        this.updateInterval = updateInterval;
+        this.hostName = proxyClient.getHostName();
+        this.port     = proxyClient.getPort();
+        this.vmid     = proxyClient.getVmid();
+        this.userName = proxyClient.getUserName();
+        this.password = proxyClient.getPassword();
+        this.url = proxyClient.getUrl();
+
+        for (TabInfo tabInfo : tabInfos) {
+            if (tabInfo.tabVisible) {
+                addTab(tabInfo);
+            }
+        }
+
+        plugins = new LinkedHashMap<JConsolePlugin, SwingWorker<?,?>>();
+        for (JConsolePlugin p : JConsole.getPlugins()) {
+            p.setContext(proxyClient);
+            plugins.put(p, null);
+        }
+
+        Utilities.updateTransparency(this);
+
+        ToolTipManager.sharedInstance().registerComponent(this);
+
+        // Start listening to connection state events
+        //
+        proxyClient.addPropertyChangeListener(this);
+
+        addMouseListener(new MouseAdapter() {
+            public void mouseClicked(MouseEvent e) {
+                if (connectedIconBounds != null
+                    && (e.getModifiers() & MouseEvent.BUTTON1_MASK) != 0
+                    && connectedIconBounds.contains(e.getPoint())) {
+
+                    if (isConnected()) {
+                        disconnect();
+                        wasConnected = false;
+                    } else {
+                        connect();
+                    }
+                    repaint();
+                }
+            }
+        });
+
+    }
+
+    private static Icon connectedIcon16 =
+        new ImageIcon(VMPanel.class.getResource("resources/connected16.png"));
+    private static Icon connectedIcon24 =
+        new ImageIcon(VMPanel.class.getResource("resources/connected24.png"));
+    private static Icon disconnectedIcon16 =
+        new ImageIcon(VMPanel.class.getResource("resources/disconnected16.png"));
+    private static Icon disconnectedIcon24 =
+        new ImageIcon(VMPanel.class.getResource("resources/disconnected24.png"));
+
+    private Rectangle connectedIconBounds;
+
+    // Override to increase right inset for tab area,
+    // in order to reserve space for the connect toggle.
+    public void setUI(TabbedPaneUI ui) {
+        Insets insets = (Insets)UIManager.getLookAndFeelDefaults().get("TabbedPane.tabAreaInsets");
+        insets = (Insets)insets.clone();
+        insets.right += connectedIcon24.getIconWidth() + 8;
+        UIManager.put("TabbedPane.tabAreaInsets", insets);
+        super.setUI(ui);
+    }
+
+    // Override to paint the connect toggle
+    protected void paintComponent(Graphics g) {
+        super.paintComponent(g);
+
+        Icon icon;
+        Component c0 = getComponent(0);
+        if (c0 != null && c0.getY() > 24) {
+            icon = isConnected() ? connectedIcon24 : disconnectedIcon24;
+        } else {
+            icon = isConnected() ? connectedIcon16 : disconnectedIcon16;
+        }
+        Insets insets = getInsets();
+        int x = getWidth() - insets.right - icon.getIconWidth() - 4;
+        int y = insets.top;
+        if (c0 != null) {
+            y = (c0.getY() - icon.getIconHeight()) / 2;
+        }
+        icon.paintIcon(this, g, x, y);
+        connectedIconBounds = new Rectangle(x, y, icon.getIconWidth(), icon.getIconHeight());
+    }
+
+    public String getToolTipText(MouseEvent event) {
+        if (connectedIconBounds.contains(event.getPoint())) {
+            if (isConnected()) {
+                return getText("Connected. Click to disconnect.");
+            } else {
+                return getText("Disconnected. Click to connect.");
+            }
+        } else {
+            return super.getToolTipText(event);
+        }
+    }
+
+    private synchronized void addTab(TabInfo tabInfo) {
+        Tab tab = instantiate(tabInfo);
+        if (tab != null) {
+            addTab(tabInfo.name, tab);
+        } else {
+            tabInfo.tabVisible = false;
+        }
+    }
+
+    private synchronized void insertTab(TabInfo tabInfo, int index) {
+        Tab tab = instantiate(tabInfo);
+        if (tab != null) {
+            insertTab(tabInfo.name, null, tab, null, index);
+        } else {
+            tabInfo.tabVisible = false;
+        }
+    }
+
+    public synchronized void removeTabAt(int index) {
+        super.removeTabAt(index);
+    }
+
+    private Tab instantiate(TabInfo tabInfo) {
+        try {
+            Constructor con = tabInfo.tabClass.getConstructor(VMPanel.class);
+            return (Tab)con.newInstance(this);
+        } catch (Exception ex) {
+            System.err.println(ex);
+            return null;
+        }
+    }
+
+    boolean isConnected() {
+        return proxyClient.isConnected();
+    }
+
+    public int getUpdateInterval() {
+        return updateInterval;
+    }
+
+    /**
+     * WARNING NEVER CALL THIS METHOD TO MAKE JMX REQUEST
+     * IF  assertThread == false.
+     * DISPATCHER THREAD IS NOT ASSERTED.
+     * IT IS USED TO MAKE SOME LOCAL MANIPULATIONS.
+     */
+    ProxyClient getProxyClient(boolean assertThread) {
+        if(assertThread)
+            return getProxyClient();
+        else
+            return proxyClient;
+    }
+
+    public ProxyClient getProxyClient() {
+        String threadClass = Thread.currentThread().getClass().getName();
+        if (threadClass.equals("java.awt.EventDispatchThread")) {
+            String msg = "Calling VMPanel.getProxyClient() from the Event Dispatch Thread!";
+            new RuntimeException(msg).printStackTrace();
+            System.exit(1);
+        }
+        return proxyClient;
+    }
+
+    public void cleanUp() {
+        //proxyClient.disconnect();
+        for (Tab tab : getTabs()) {
+            tab.dispose();
+        }
+        for (JConsolePlugin p : plugins.keySet()) {
+            p.dispose();
+        }
+        // Cancel pending update tasks
+        //
+        if (timer != null) {
+            timer.cancel();
+        }
+        // Stop listening to connection state events
+        //
+        proxyClient.removePropertyChangeListener(this);
+    }
+
+    // Call on EDT
+    public void connect() {
+        if (isConnected()) {
+            // create plugin tabs if not done
+            createPluginTabs();
+            // Notify tabs
+            fireConnectedChange(true);
+            // Enable/disable tabs on initial update
+            initialUpdate = true;
+            // Start/Restart update timer on connect/reconnect
+            startUpdateTimer();
+        } else {
+            new Thread("VMPanel.connect") {
+                public void run() {
+                    proxyClient.connect();
+                }
+            }.start();
+        }
+    }
+
+
+    // Call on EDT
+    public void disconnect() {
+        proxyClient.disconnect();
+        updateFrameTitle();
+    }
+
+
+
+    // Called on EDT
+    public void propertyChange(PropertyChangeEvent ev) {
+        String prop = ev.getPropertyName();
+
+        if (prop == CONNECTION_STATE_PROPERTY) {
+            ConnectionState oldState = (ConnectionState)ev.getOldValue();
+            ConnectionState newState = (ConnectionState)ev.getNewValue();
+            switch (newState) {
+              case CONNECTING:
+                onConnecting();
+                break;
+
+              case CONNECTED:
+                if (progressBar != null) {
+                    progressBar.setIndeterminate(false);
+                    progressBar.setValue(100);
+                }
+                closeOptionPane();
+                updateFrameTitle();
+                // create tabs if not done
+                createPluginTabs();
+                repaint();
+                // Notify tabs
+                fireConnectedChange(true);
+                // Enable/disable tabs on initial update
+                initialUpdate = true;
+                // Start/Restart update timer on connect/reconnect
+                startUpdateTimer();
+                break;
+
+              case DISCONNECTED:
+                if (progressBar != null) {
+                    progressBar.setIndeterminate(false);
+                    progressBar.setValue(0);
+                    closeOptionPane();
+                }
+                vmPanelDied();
+                if (oldState == ConnectionState.CONNECTED) {
+                    // Notify tabs
+                    fireConnectedChange(false);
+                }
+                break;
+            }
+        }
+    }
+
+
+
+    // Called on EDT
+    private void onConnecting() {
+        time0 = System.currentTimeMillis();
+
+        final JConsole jc = (JConsole)SwingUtilities.getWindowAncestor(this);
+
+        String connectionName = getConnectionName();
+        progressBar = new JProgressBar();
+        progressBar.setIndeterminate(true);
+        JPanel progressPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
+        progressPanel.add(progressBar);
+
+        Object[] message = {
+            "<html><h3>" + getText("connectingTo1", connectionName) + "</h3></html>",
+            progressPanel,
+            "<html><b>"  + getText("connectingTo2", connectionName) + "</b></html>"
+        };
+
+
+        optionPane =
+            SheetDialog.showOptionDialog(this,
+                                         message,
+                                         JOptionPane.DEFAULT_OPTION,
+                                         JOptionPane.INFORMATION_MESSAGE, null,
+                                         new String[] { getText("Cancel") },
+                                         0);
+
+
+    }
+
+    // Called on EDT
+    private void closeOptionPane() {
+        if (optionPane != null) {
+            new Thread("VMPanel.sleeper") {
+                public void run() {
+                    long elapsed = System.currentTimeMillis() - time0;
+                    if (elapsed < 2000) {
+                        try {
+                            sleep(2000 - elapsed);
+                        } catch (InterruptedException ex) {
+                            // Ignore
+                        }
+                    }
+                    SwingUtilities.invokeLater(new Runnable() {
+                        public void run() {
+                            optionPane.setVisible(false);
+                            progressBar = null;
+                        }
+                    });
+                }
+            }.start();
+        }
+    }
+
+    void updateFrameTitle() {
+        VMInternalFrame vmIF = getFrame();
+        if (vmIF != null) {
+            String displayName = getDisplayName();
+            if (!proxyClient.isConnected()) {
+                displayName = getText("ConnectionName (disconnected)", displayName);
+            }
+            vmIF.setTitle(displayName);
+        }
+    }
+
+    private VMInternalFrame getFrame() {
+        if (vmIF == null) {
+            vmIF = (VMInternalFrame)SwingUtilities.getAncestorOfClass(VMInternalFrame.class,
+                                                                      this);
+        }
+        return vmIF;
+    }
+
+    // TODO: this method is not needed when all JConsole tabs
+    // are migrated to use the new JConsolePlugin API.
+    //
+    // A thread safe clone of all JConsole tabs
+    synchronized List<Tab> getTabs() {
+        ArrayList<Tab> list = new ArrayList<Tab>();
+        int n = getTabCount();
+        for (int i = 0; i < n; i++) {
+            Component c = getComponentAt(i);
+            if (c instanceof Tab) {
+                list.add((Tab) c);
+            }
+        }
+        return list;
+    }
+
+    private void startUpdateTimer() {
+        if (timer != null) {
+            timer.cancel();
+        }
+        TimerTask timerTask = new TimerTask() {
+            public void run() {
+                update();
+            }
+        };
+        String timerName = "Timer-"+getConnectionName();
+        timer = new Timer(timerName, true);
+        timer.schedule(timerTask, 0, updateInterval);
+    }
+
+
+    // Call on EDT
+    private void vmPanelDied() {
+        disconnect();
+
+        final JConsole jc = (JConsole)SwingUtilities.getWindowAncestor(this);
+
+        JOptionPane optionPane;
+
+        final String connectStr   = getText("Connect");
+        final String reconnectStr = getText("Reconnect");
+        final String cancelStr    = getText("Cancel");
+
+        String msgTitle, msgExplanation, buttonStr;
+
+        if (wasConnected) {
+            wasConnected = false;
+            msgTitle = getText("connectionLost1");
+            msgExplanation = getText("connectionLost2", getConnectionName());
+            buttonStr = reconnectStr;
+        } else {
+            msgTitle = getText("connectionFailed1");
+            msgExplanation = getText("connectionFailed2", getConnectionName());
+            buttonStr = connectStr;
+        }
+
+        optionPane =
+            SheetDialog.showOptionDialog(this,
+                                         "<html><h3>" + msgTitle + "</h3>" +
+                                         "<b>" + msgExplanation + "</b>",
+                                         JOptionPane.DEFAULT_OPTION,
+                                         JOptionPane.WARNING_MESSAGE, null,
+                                         new String[] { buttonStr, cancelStr },
+                                         0);
+
+        optionPane.addPropertyChangeListener(new PropertyChangeListener() {
+            public void propertyChange(PropertyChangeEvent event) {
+                if (event.getPropertyName().equals(JOptionPane.VALUE_PROPERTY)) {
+                    Object value = event.getNewValue();
+
+                    if (value == reconnectStr || value == connectStr) {
+                        connect();
+                    } else if (!everConnected) {
+                        try {
+                            getFrame().setClosed(true);
+                        } catch (PropertyVetoException ex) {
+                            // Should not happen, but can be ignored.
+                        }
+                    }
+                }
+            }
+        });
+    }
+
+    // Note: This method is called on a TimerTask thread. Any GUI manipulation
+    // must be performed with invokeLater() or invokeAndWait().
+    private Object lockObject = new Object();
+    private void update() {
+        synchronized(lockObject) {
+            if (!isConnected()) {
+                if (wasConnected) {
+                    EventQueue.invokeLater(new Runnable() {
+                        public void run() {
+                            vmPanelDied();
+                        }
+                    });
+                }
+                wasConnected = false;
+                return;
+            } else {
+                wasConnected = true;
+                everConnected = true;
+            }
+            proxyClient.flush();
+            List<Tab> tabs = getTabs();
+            final int n = tabs.size();
+            for (int i = 0; i < n; i++) {
+                final int index = i;
+                try {
+                    if (!proxyClient.isDead()) {
+                        // Update tab
+                        //
+                        tabs.get(index).update();
+                        // Enable tab on initial update
+                        //
+                        if (initialUpdate) {
+                            EventQueue.invokeLater(new Runnable() {
+                                public void run() {
+                                    setEnabledAt(index, true);
+                                }
+                            });
+                        }
+                    }
+                } catch (Exception e) {
+                    // Disable tab on initial update
+                    //
+                    if (initialUpdate) {
+                        EventQueue.invokeLater(new Runnable() {
+                            public void run() {
+                                setEnabledAt(index, false);
+                            }
+                        });
+                    }
+                }
+            }
+
+            // plugin GUI update
+            for (JConsolePlugin p : plugins.keySet()) {
+                SwingWorker<?,?> sw = p.newSwingWorker();
+                SwingWorker<?,?> prevSW = plugins.get(p);
+                // schedule SwingWorker to run only if the previous
+                // SwingWorker has finished its task and it hasn't started.
+                if (prevSW == null || prevSW.isDone()) {
+                    if (sw == null || sw.getState() == SwingWorker.StateValue.PENDING) {
+                        plugins.put(p, sw);
+                        if (sw != null) {
+                            sw.execute();
+                        }
+                    }
+                }
+            }
+
+            // Set the first enabled tab in the tabīs list
+            // as the selected tab on initial update
+            //
+            if (initialUpdate) {
+                EventQueue.invokeLater(new Runnable() {
+                    public void run() {
+                        // Select first enabled tab if current tab isn't.
+                        int index = getSelectedIndex();
+                        if (index < 0 || !isEnabledAt(index)) {
+                            for (int i = 0; i < n; i++) {
+                                if (isEnabledAt(i)) {
+                                    setSelectedIndex(i);
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                });
+                initialUpdate = false;
+            }
+        }
+    }
+
+    public String getHostName() {
+        return hostName;
+    }
+
+    public int getPort() {
+        return port;
+    }
+
+    public String getUserName() {
+        return userName;
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+
+    public String getPassword() {
+        return password;
+    }
+
+    public String getConnectionName() {
+        return proxyClient.connectionName();
+    }
+
+    public String getDisplayName() {
+        return proxyClient.getDisplayName();
+    }
+
+    static class TabInfo {
+        Class<? extends Tab> tabClass;
+        String name;
+        boolean tabVisible;
+
+        TabInfo(Class<? extends Tab> tabClass, String name, boolean tabVisible) {
+            this.tabClass = tabClass;
+            this.name = name;
+            this.tabVisible = tabVisible;
+        }
+    }
+
+    // Convenience methods
+    private static String getText(String key, Object... args) {
+        return Resources.getText(key, args);
+    }
+
+    private void createPluginTabs() {
+        // add plugin tabs if not done
+        if (!pluginTabsAdded) {
+            for (JConsolePlugin p : plugins.keySet()) {
+                Map<String, JPanel> tabs = p.getTabs();
+                for (Map.Entry<String, JPanel> e : tabs.entrySet()) {
+                    addTab(e.getKey(), e.getValue());
+                }
+            }
+            pluginTabsAdded = true;
+        }
+    }
+
+    private void fireConnectedChange(boolean connected) {
+        for (Tab tab : getTabs()) {
+            tab.firePropertyChange(JConsoleContext.CONNECTION_STATE_PROPERTY, !connected, connected);
+        }
+    }
+}