1 /*

     2  * Copyright (c) 2013, 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.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

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

    23  * questions.

    24  */

    25 package sun.tools.jconsole;

    26 

    27 import java.util.HashMap;

    28 import java.util.Map;

    29 

    30 import javax.swing.JOptionPane;

    31 import javax.swing.JPanel;

    32 import javax.swing.SwingWorker;

    33 

    34 import com.sun.tools.jconsole.JConsolePlugin;

    35 

    36 /**

    37  * Proxy that shields GUI from plug-in exceptions.

    38  *

    39  */

    40 final class ExceptionSafePlugin extends JConsolePlugin {

    41 

    42     private static boolean ignoreExceptions;

    43     private final JConsolePlugin plugin;

    44 

    45     public ExceptionSafePlugin(JConsolePlugin plugin) {

    46         this.plugin = plugin;

    47     }

    48 

    49     @Override

    50     public Map<String, JPanel> getTabs() {

    51         try {

    52             return plugin.getTabs();

    53         } catch (RuntimeException e) {

    54             handleException(e);

    55         }

    56         return new HashMap<>();

    57     }

    58 

    59     @Override

    60     public SwingWorker<?, ?> newSwingWorker() {

    61         try {

    62             return plugin.newSwingWorker();

    63         } catch (RuntimeException e) {

    64             handleException(e);

    65         }

    66         return null;

    67     }

    68 

    69     @Override

    70     public void dispose() {

    71         try {

    72             plugin.dispose();

    73         } catch (RuntimeException e) {

    74             handleException(e);

    75         }

    76     }

    77 

    78     public void executeSwingWorker(SwingWorker<?, ?> sw) {

    79         try {

    80             sw.execute();

    81         } catch (RuntimeException e) {

    82             handleException(e);

    83         }

    84     }

    85 

    86     private void handleException(Exception e) {

    87         if (JConsole.isDebug()) {

    88             System.err.println("Plug-in exception:");

    89             e.printStackTrace();

    90         } else {

    91             if (!ignoreExceptions) {

    92                 showExceptionDialog(e);

    93             }

    94         }

    95     }

    96 

    97     private void showExceptionDialog(Exception e) {

    98         Object[] buttonTexts = {

    99             Messages.PLUGIN_EXCEPTION_DIALOG_BUTTON_OK,

   100             Messages.PLUGIN_EXCEPTION_DIALOG_BUTTON_EXIT,

   101             Messages.PLUGIN_EXCEPTION_DIALOG_BUTTON_IGNORE

   102         };

   103 

   104         String message = String.format(

   105             Messages.PLUGIN_EXCEPTION_DIALOG_MESSAGE,

   106             plugin.getClass().getSimpleName(),

   107             String.valueOf(e.getMessage())

   108         );

   109 

   110         int buttonIndex = JOptionPane.showOptionDialog(

   111             null,

   112             message,

   113             Messages.PLUGIN_EXCEPTION_DIALOG_TITLE,

   114             JOptionPane.YES_NO_CANCEL_OPTION,

   115             JOptionPane.ERROR_MESSAGE,

   116             null,

   117             buttonTexts,

   118             buttonTexts[0]

   119         );

   120 

   121         if (buttonIndex == 1) {

   122             System.exit(0);

   123         }

   124         ignoreExceptions = buttonIndex == 2;

   125     }

   126 }