1/* 2 * ProGuard -- shrinking, optimization, obfuscation, and preverification 3 * of Java bytecode. 4 * 5 * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu) 6 * 7 * This program is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by the Free 9 * Software Foundation; either version 2 of the License, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along 18 * with this program; if not, write to the Free Software Foundation, Inc., 19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 20 */ 21package proguard.gui; 22 23import proguard.*; 24 25import javax.swing.*; 26import java.awt.*; 27import java.io.PrintStream; 28 29 30/** 31 * This <code>Runnable</code> runs ProGuard, sending console output to a text 32 * area and any exceptions to message dialogs. 33 * 34 * @see ProGuard 35 * @author Eric Lafortune 36 */ 37final class ProGuardRunnable implements Runnable 38{ 39 private final JTextArea consoleTextArea; 40 private final Configuration configuration; 41 private final String configurationFileName; 42 43 44 /** 45 * Creates a new ProGuardRunnable object. 46 * @param consoleTextArea the text area to send the console output to. 47 * @param configuration the ProGuard configuration. 48 * @param configurationFileName the optional file name of the configuration, 49 * for informational purposes. 50 */ 51 public ProGuardRunnable(JTextArea consoleTextArea, 52 Configuration configuration, 53 String configurationFileName) 54 { 55 this.consoleTextArea = consoleTextArea; 56 this.configuration = configuration; 57 this.configurationFileName = configurationFileName; 58 } 59 60 61 // Implementation for Runnable. 62 63 public void run() 64 { 65 consoleTextArea.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR)); 66 consoleTextArea.setText(""); 67 68 // Redirect the System's out and err streams to the console text area. 69 PrintStream oldOut = System.out; 70 PrintStream oldErr = System.err; 71 72 PrintStream printStream = 73 new PrintStream(new TextAreaOutputStream(consoleTextArea), true); 74 75 System.setOut(printStream); 76 System.setErr(printStream); 77 78 try 79 { 80 // Create a new ProGuard object with the GUI's configuration. 81 ProGuard proGuard = new ProGuard(configuration); 82 83 // Run it. 84 proGuard.execute(); 85 86 // Print out the completion message. 87 System.out.println("Processing completed successfully"); 88 } 89 catch (Exception ex) 90 { 91 //ex.printStackTrace(); 92 93 // Print out the exception message. 94 System.out.println(ex.getMessage()); 95 96 // Show a dialog as well. 97 MessageDialogRunnable.showMessageDialog(consoleTextArea, 98 ex.getMessage(), 99 msg("errorProcessing"), 100 JOptionPane.ERROR_MESSAGE); 101 } 102 catch (OutOfMemoryError er) 103 { 104 // Forget about the ProGuard object as quickly as possible. 105 System.gc(); 106 107 // Print out a message suggesting what to do next. 108 System.out.println(msg("outOfMemoryInfo", configurationFileName)); 109 110 // Show a dialog as well. 111 MessageDialogRunnable.showMessageDialog(consoleTextArea, 112 msg("outOfMemory"), 113 msg("errorProcessing"), 114 JOptionPane.ERROR_MESSAGE); 115 } 116 finally 117 { 118 // Make sure all output has been sent to the console text area. 119 printStream.close(); 120 121 // Restore the old System's out and err streams. 122 System.setOut(oldOut); 123 System.setErr(oldErr); 124 } 125 126 consoleTextArea.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR)); 127 128 // Reset the global static redirection lock. 129 ProGuardGUI.systemOutRedirected = false; 130 } 131 132 133 // Small utility methods. 134 135 /** 136 * Returns the message from the GUI resources that corresponds to the given 137 * key. 138 */ 139 private String msg(String messageKey) 140 { 141 return GUIResources.getMessage(messageKey); 142 } 143 144 145 /** 146 * Returns the message from the GUI resources that corresponds to the given 147 * key and argument. 148 */ 149 private String msg(String messageKey, 150 Object messageArgument) 151 { 152 return GUIResources.getMessage(messageKey, new Object[] {messageArgument}); 153 } 154} 155