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 */ 25package sun.tools.jconsole; 26 27import java.util.HashMap; 28import java.util.Map; 29 30import javax.swing.JOptionPane; 31import javax.swing.JPanel; 32import javax.swing.SwingWorker; 33 34import com.sun.tools.jconsole.JConsolePlugin; 35 36/** 37 * Proxy that shields GUI from plug-in exceptions. 38 * 39 */ 40final 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} 127