From b72c5c2e5482cf10117b2b25f642f7616b2326c3 Mon Sep 17 00:00:00 2001
From: Joe Onorato <joeo@android.com>
Date: Mon, 31 Aug 2009 10:12:00 -0700
Subject: ProGuard 4.4

---
 src/proguard/gui/ReTraceRunnable.java | 149 ++++++++++++++++++++++++++++++++++
 1 file changed, 149 insertions(+)
 create mode 100644 src/proguard/gui/ReTraceRunnable.java

(limited to 'src/proguard/gui/ReTraceRunnable.java')

diff --git a/src/proguard/gui/ReTraceRunnable.java b/src/proguard/gui/ReTraceRunnable.java
new file mode 100644
index 0000000..1ca19ca
--- /dev/null
+++ b/src/proguard/gui/ReTraceRunnable.java
@@ -0,0 +1,149 @@
+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program 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 for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+package proguard.gui;
+
+import proguard.retrace.ReTrace;
+
+import javax.swing.*;
+import java.awt.*;
+import java.io.*;
+
+
+/**
+ * This <code>Runnable</code> runs ReTrace, sending console output to a text
+ * area and any exceptions to message dialogs.
+ *
+ * @see ReTrace
+ * @author Eric Lafortune
+ */
+final class ReTraceRunnable implements Runnable
+{
+    private final JTextArea consoleTextArea;
+    private final boolean   verbose;
+    private final File      mappingFile;
+    private final String    stackTrace;
+
+
+    /**
+     * Creates a new ProGuardRunnable object.
+     * @param consoleTextArea the text area to send the console output to.
+     * @param verbose         specifies whether the de-obfuscated stack trace
+     *                        should be verbose.
+     * @param mappingFile     the mapping file that was written out by ProGuard.
+     */
+    public ReTraceRunnable(JTextArea consoleTextArea,
+                           boolean   verbose,
+                           File      mappingFile,
+                           String    stackTrace)
+    {
+        this.consoleTextArea = consoleTextArea;
+        this.verbose         = verbose;
+        this.mappingFile     = mappingFile;
+        this.stackTrace      = stackTrace;
+    }
+
+
+    // Implementation for Runnable.
+
+    public void run()
+    {
+        consoleTextArea.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
+        consoleTextArea.setText("");
+
+        // Redirect the stack trace string to the System's in stream, and the
+        // out and err streams to the console text area.
+        InputStream oldIn  = System.in;
+        PrintStream oldOut = System.out;
+        PrintStream oldErr = System.err;
+
+        ByteArrayInputStream inputStream =
+           new ByteArrayInputStream(stackTrace.getBytes());
+
+        PrintStream printStream =
+            new PrintStream(new TextAreaOutputStream(consoleTextArea), true);
+
+        System.setIn(inputStream);
+        System.setOut(printStream);
+        System.setErr(printStream);
+
+        try
+        {
+            // Create a new ProGuard object with the GUI's configuration.
+            ReTrace reTrace = new ReTrace(ReTrace.STACK_TRACE_EXPRESSION,
+                                          verbose,
+                                          mappingFile);
+
+            // Run it.
+            reTrace.execute();
+        }
+        catch (Exception ex)
+        {
+            // Print out the exception message.
+            System.out.println(ex.getMessage());
+
+            // Show a dialog as well.
+            MessageDialogRunnable.showMessageDialog(consoleTextArea,
+                                                    ex.getMessage(),
+                                                    msg("errorReTracing"),
+                                                    JOptionPane.ERROR_MESSAGE);
+        }
+        catch (OutOfMemoryError er)
+        {
+            // Forget about the ProGuard object as quickly as possible.
+            System.gc();
+
+            // Print out a message suggesting what to do next.
+            System.out.println(msg("outOfMemory"));
+
+            // Show a dialog as well.
+            MessageDialogRunnable.showMessageDialog(consoleTextArea,
+                                                    msg("outOfMemory"),
+                                                    msg("errorReTracing"),
+                                                    JOptionPane.ERROR_MESSAGE);
+        }
+
+        // Make sure all output has been sent to the console text area.
+        printStream.flush();
+
+        // Restore the old System's in, out, and err streams.
+        System.setIn(oldIn);
+        System.setOut(oldOut);
+        System.setErr(oldErr);
+
+        consoleTextArea.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
+        consoleTextArea.setCaretPosition(0);
+
+        // Reset the global static redirection lock.
+        ProGuardGUI.systemOutRedirected = false;
+    }
+
+
+    // Small utility methods.
+
+    /**
+     * Returns the message from the GUI resources that corresponds to the given
+     * key.
+     */
+    private String msg(String messageKey)
+    {
+         return GUIResources.getMessage(messageKey);
+    }
+}
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