Add stack trace reporting

* When an unhandled exception occurs, the exception handler writes it to a file in addition to all ther other stuff that normally happens
* The next time ConnectBot is started up, the user is prompted as to whether they want to submit the stack trace to aid in finding bugs.
* If the user agrees or declines, the stack traces are deleted.

git-svn-id: https://connectbot.googlecode.com/svn/trunk/connectbot@277 df292f66-193f-0410-a5fc-6d59da041ff2

1 files changed, 46 insertions, 0 deletions

diff --git a/src/com/nullwire/trace/DefaultExceptionHandler.java b/src/com/nullwire/trace/DefaultExceptionHandler.java
new file mode 100644
index 0000000..e475888
--- /dev/null
+++ b/src/com/nullwire/trace/DefaultExceptionHandler.java
@@ -0,0 +1,46 @@
+package com.nullwire.trace;
+
+import java.io.BufferedWriter;
+import java.io.FileWriter;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.io.Writer;
+import java.lang.Thread.UncaughtExceptionHandler;
+import java.util.Random;
+
+import android.util.Log;
+
+public class DefaultExceptionHandler implements UncaughtExceptionHandler {
+
+	private static final String TAG = "UNHANDLED_EXCEPTION";
+
+	// Default exception handler
+	public void uncaughtException(Thread t, Throwable e) {
+		// Here you should have a more robust, permanent record of problems
+		final Writer result = new StringWriter();
+		final PrintWriter printWriter = new PrintWriter(result);
+		e.printStackTrace(printWriter);
+		try {
+			// Random number to avoid duplicate files
+			Random generator = new Random();
+			int random = generator.nextInt(99999);
+			// Embed version in stacktrace filename
+			String filename = G.APP_VERSION + "-" + Integer.toString(random);
+			Log.d(TAG, "Writing unhandled exception to: " + G.FILES_PATH + "/"
+					+ filename + ".stacktrace");
+			// Write the stacktrace to disk
+			BufferedWriter bos = new BufferedWriter(new FileWriter(G.FILES_PATH
+					+ "/" + filename + ".stacktrace"));
+			bos.write(result.toString());
+			bos.flush();
+			// Close up everything
+			bos.close();
+		} catch (Exception ebos) {
+			// Nothing much we can do about this - the game is over
+			ebos.printStackTrace();
+		}
+		Log.d(TAG, result.toString());
+		// FlurryAgent session has ended
+		t.getThreadGroup().destroy();
+	}
+}