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https://github.com/ankidroid/Anki-Android.git
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Custom Exception Handler
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t123
parent
35dd985ccc
commit
7fc26b109e
4
res/xml/widget_ankidroid.xml
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4
res/xml/widget_ankidroid.xml
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<?xml version="1.0" encoding="utf-8"?>
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<appwidget-provider
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xmlns:android="http://schemas.android.com/apk/res/android"
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android:initialLayout="@layout/widget_ankidroidinitial" android:minHeight="146dp" android:minWidth="146dp" android:updatePeriodMillis="2500"/>
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229
src/com/ichi2/anki/CustomExceptionHandler.java
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src/com/ichi2/anki/CustomExceptionHandler.java
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package com.ichi2.anki;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.io.Writer;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Random;
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import android.content.Context;
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import android.content.pm.PackageInfo;
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import android.content.pm.PackageManager;
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import android.os.Environment;
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import android.os.StatFs;
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import android.util.Log;
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public class CustomExceptionHandler implements Thread.UncaughtExceptionHandler {
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private Thread.UncaughtExceptionHandler PreviousHandler;
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private static CustomExceptionHandler instance;
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private Context curContext;
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private final static String TAG = "CustomExceptionHandler";
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private Random randomGenerator = new Random();
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private HashMap<String, String> information = new HashMap<String, String>(
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20);
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static CustomExceptionHandler getInstance() {
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if (instance == null) {
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instance = new CustomExceptionHandler();
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Log.i(TAG, "New instance of custom exception handler");
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}
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return instance;
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}
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public void Init(Context context) {
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PreviousHandler = Thread.getDefaultUncaughtExceptionHandler();
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Thread.setDefaultUncaughtExceptionHandler(this);
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curContext = context;
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}
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private long getAvailableInternalMemorySize() {
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File path = Environment.getDataDirectory();
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StatFs stat = new StatFs(path.getPath());
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long blockSize = stat.getBlockSize();
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long availableBlocks = stat.getAvailableBlocks();
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return availableBlocks * blockSize;
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}
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private long getTotalInternalMemorySize() {
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File path = Environment.getDataDirectory();
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StatFs stat = new StatFs(path.getPath());
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long blockSize = stat.getBlockSize();
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long totalBlocks = stat.getBlockCount();
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return totalBlocks * blockSize;
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}
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private void collectInformation() {
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Log.i(TAG, "collectInformation");
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if (curContext == null)
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return;
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try {
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Log.i(TAG, "collecting information");
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PackageManager pm = curContext.getPackageManager();
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PackageInfo pi = pm.getPackageInfo(curContext.getPackageName(), 0);
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information.put("VersionName", pi.versionName); // Version
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information.put("PackageName", pi.packageName);// Package name
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information.put("PhoneModel", android.os.Build.MODEL); // Device
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// model
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information.put("AndroidVersion", android.os.Build.VERSION.RELEASE);// Android
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// version
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information.put("Board", android.os.Build.BOARD);
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information.put("Brand", android.os.Build.BRAND);
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information.put("Device", android.os.Build.DEVICE);
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information.put("Display", android.os.Build.DISPLAY);
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information.put("FingerPrint", android.os.Build.FINGERPRINT);
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information.put("Host", android.os.Build.HOST);
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information.put("ID", android.os.Build.ID);
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information.put("Model", android.os.Build.MODEL);
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information.put("Product", android.os.Build.PRODUCT);
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information.put("Tags", android.os.Build.TAGS);
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information.put("Time", Long.toString(android.os.Build.TIME));
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information.put("Type", android.os.Build.TYPE);
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information.put("User", android.os.Build.USER);
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information.put("TotalInternalMemory", Long
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.toString(getTotalInternalMemorySize()));
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information.put("AvailableInternalMemory", Long
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.toString(getAvailableInternalMemorySize()));
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Log.i(TAG, "Information collected");
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} catch (Exception e) {
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Log.i(TAG, e.toString());
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}
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}
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public void uncaughtException(Thread t, Throwable e) {
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Log.i(TAG, "uncaughtException");
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collectInformation();
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Date currentDate = new Date();
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StringBuilder reportInformation = new StringBuilder(10000);
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reportInformation.append(String.format(
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"Report Generated: %s\nBegin Collected Information\n\n",
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currentDate.toString()));
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for (String key : information.keySet()) {
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String value = information.get(key);
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reportInformation.append(String.format("%s = %s\n", key, value));
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}
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reportInformation.append(String
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.format("End Collected Information\n\nBegin Stacktrace\n\n"));
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// Stack trace
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final Writer result = new StringWriter();
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final PrintWriter printWriter = new PrintWriter(result);
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e.printStackTrace(printWriter);
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reportInformation.append(String.format("%s\n", result.toString()));
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reportInformation.append(String
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.format("End Stacktrace\n\nBegin Inner exceptions\n\n"));
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// Cause, inner exceptions
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Throwable cause = e.getCause();
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while (cause != null) {
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cause.printStackTrace(printWriter);
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reportInformation.append(String.format("%s\n", result.toString()));
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cause = cause.getCause();
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}
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reportInformation.append(String.format("End Inner exceptions"));
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printWriter.close();
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Log.i(TAG, "report infomation string created");
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saveReportToFile(reportInformation.toString());
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PreviousHandler.uncaughtException(t, e);
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}
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private void saveReportToFile(String reportInformation) {
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try {
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Log.i(TAG, "saveReportFile");
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int random = randomGenerator.nextInt(99999);
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String filename = String.format("ad-%d.stacktrace", random);
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if(hasStorage(true)) {
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Log.i(TAG, "External storage available");
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File f = new File(Environment.getExternalStorageDirectory().toString(), filename);
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Log.i(TAG, String.format("Writing to: %s", f.getAbsoluteFile()));
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f.createNewFile();
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FileOutputStream fw = new FileOutputStream(f);
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fw.write(reportInformation.getBytes());
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fw.close();
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}
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else {
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Log.i(TAG, "No external storage available");
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FileOutputStream trace = curContext.openFileOutput(filename, Context.MODE_PRIVATE);
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trace.write(reportInformation.getBytes());
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trace.close();
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}
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Log.i(TAG, "report saved");
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} catch (Exception e) {
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Log.i(TAG, e.toString());
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}
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}
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static private boolean checkFsWritable() {
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String directoryName = Environment.getExternalStorageDirectory().toString();
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File directory = new File(directoryName);
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if (!directory.isDirectory()) {
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if (!directory.mkdirs()) {
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return false;
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}
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}
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File f = new File(directoryName, ".probe");
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try {
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// Remove stale file if any
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if (f.exists()) {
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f.delete();
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}
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if (!f.createNewFile())
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return false;
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f.delete();
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return true;
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} catch (IOException ex) {
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return false;
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}
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}
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static public boolean hasStorage(boolean requireWriteAccess) {
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String state = Environment.getExternalStorageState();
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Log.i(TAG, "storage state is " + state);
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if (Environment.MEDIA_MOUNTED.equals(state)) {
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if (requireWriteAccess) {
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boolean writable = checkFsWritable();
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Log.i(TAG, "storage writable is " + writable);
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return writable;
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} else {
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return true;
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}
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} else if (!requireWriteAccess && Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)) {
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return true;
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}
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return false;
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}
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}
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