package net.oschina.app;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.lang.Thread.UncaughtExceptionHandler;
import java.net.ConnectException;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.text.DateFormat;
import java.util.Date;
import net.oschina.app.common.UIHelper;
import org.apache.commons.httpclient.HttpException;
import android.content.Context;
import android.content.pm.PackageInfo;
import android.os.Environment;
import android.os.Handler;
import android.os.HandlerThread;
import android.widget.Toast;
/**
* 应用程序异常类：用于捕获异常和提示错误信息
*
* @author liux (http://my.oschina.net/liux)
* @version 1.0
* @created 2012-3-21
*/
public class AppException extends Exception implements UncaughtExceptionHandler {
private final static boolean Debug = false;// 是否保存错误日志
/** 定义异常类型 */
public final static byte TYPE_NETWORK = 0x01;
public final static byte TYPE_SOCKET = 0x02;
public final static byte TYPE_HTTP_CODE = 0x03;
public final static byte TYPE_HTTP_ERROR = 0x04;
public final static byte TYPE_XML = 0x05;
public final static byte TYPE_IO = 0x06;
public final static byte TYPE_RUN = 0x07;
public final static byte TYPE_JSON = 0x08;
private byte type;
private int code;
/** 系统默认的UncaughtException处理类 */
private Thread.UncaughtExceptionHandler mDefaultHandler;
private AppException() {
this.mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();
}
private AppException(byte type, int code, Exception excp) {
super(excp);
this.type = type;
this.code = code;
if (Debug) {
this.saveErrorLog(excp);
}
}
public int getCode() {
return this.code;
}
public int getType() {
return this.type;
}
/**
* 提示友好的错误信息
*
* @param ctx
*/
public void makeToast(Context ctx) {
switch (this.getType()) {
case TYPE_HTTP_CODE:
String err = ctx.getString(R.string.http_status_code_error, this.getCode());
Toast.makeText(ctx, err, Toast.LENGTH_SHORT).show();
break;
case TYPE_HTTP_ERROR:
Toast.makeText(ctx, R.string.http_exception_error, Toast.LENGTH_SHORT).show();
break;
case TYPE_SOCKET:
Toast.makeText(ctx, R.string.socket_exception_error, Toast.LENGTH_SHORT).show();
break;
case TYPE_NETWORK:
Toast.makeText(ctx, R.string.network_not_connected, Toast.LENGTH_SHORT).show();
break;
case TYPE_XML:
Toast.makeText(ctx, R.string.xml_parser_failed, Toast.LENGTH_SHORT).show();
break;
case TYPE_JSON:
Toast.makeText(ctx, R.string.xml_parser_failed, Toast.LENGTH_SHORT).show();
break;
case TYPE_IO:
Toast.makeText(ctx, R.string.io_exception_error, Toast.LENGTH_SHORT).show();
break;
case TYPE_RUN:
Toast.makeText(ctx, R.string.app_run_code_error, Toast.LENGTH_SHORT).show();
break;
}
}
/**
* 保存异常日志
*
* @param excp
*/
public void saveErrorLog(Exception excp) {
String errorlog = "errorlog.txt";
String savePath = "";
String logFilePath = "";
FileWriter fw = null;
PrintWriter pw = null;
try {
// 判断是否挂载了SD卡
String storageState = Environment.getExternalStorageState();
if (storageState.equals(Environment.MEDIA_MOUNTED)) {
savePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/OSChina/Log/";
File file = new File(savePath);
if (!file.exists()) {
file.mkdirs();
}
logFilePath = savePath + errorlog;
}
// 没有挂载SD卡，无法写文件
if (logFilePath == "") {
return;
}
File logFile = new File(logFilePath);
if (!logFile.exists()) {
logFile.createNewFile();
}
fw = new FileWriter(logFile, true);
pw = new PrintWriter(fw);
DateFormat df = DateFormat.getDateInstance();
pw.println("--------------------" + (df.format(new Date())) + "---------------------");
excp.printStackTrace(pw);
pw.close();
fw.close();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (pw != null) {
pw.close();
}
if (fw != null) {
try {
fw.close();
} catch (IOException e) {
}
}
}
}
public static AppException http(int code) {
return new AppException(TYPE_HTTP_CODE, code, null);
}
public static AppException http(Exception e) {
return new AppException(TYPE_HTTP_ERROR, 0, e);
}
public static AppException socket(Exception e) {
return new AppException(TYPE_SOCKET, 0, e);
}
public static AppException io(Exception e) {
if (e instanceof UnknownHostException || e instanceof ConnectException) {
return new AppException(TYPE_NETWORK, 0, e);
} else if (e instanceof IOException) {
return new AppException(TYPE_IO, 0, e);
}
return run(e);
}
public static AppException xml(Exception e) {
return new AppException(TYPE_XML, 0, e);
}
public static AppException json(Exception e) {
return new AppException(TYPE_JSON, 0, e);
}
public static AppException network(Exception e) {
if (e instanceof UnknownHostException || e instanceof ConnectException) {
return new AppException(TYPE_NETWORK, 0, e);
} else if (e instanceof HttpException) {
return http(e);
} else if (e instanceof SocketException) {
return socket(e);
}
return http(e);
}
public static AppException run(Exception e) {
return new AppException(TYPE_RUN, 0, e);
}
/**
* 获取APP异常崩溃处理对象
*
* @param context
* @return
*/
public static AppException getAppExceptionHandler() {
return new AppException();
}
@Override
public void uncaughtException(Thread thread, Throwable ex) {
if (!handleException(ex) && mDefaultHandler != null) {
mDefaultHandler.uncaughtException(thread, ex);
}
}
/**
* 自定义异常处理:收集错误信息&发送错误报告
*
* @param ex
* @return true:处理了该异常信息;否则返回false
*/
private boolean handleException(Throwable ex) {
if (ex == null) {
return false;
}
final Context context = AppManager.getAppManager().currentActivity();
if (context == null) {
return false;
}
final String crashReport = getCrashReport(context, ex);
// 显示异常信息&发送报告
HandlerThread thread = new HandlerThread("Temp main");
thread.start();
Handler handler = new Handler(thread.getLooper());
handler.post(new Runnable() {
@Override
public void run() {
UIHelper.sendAppCrashReport(context, crashReport);
}
});
return true;
}
/**
* 获取APP崩溃异常报告
*
* @param ex
* @return
*/
private String getCrashReport(Context context, Throwable ex) {
PackageInfo pinfo = ((AppContext) context.getApplicationContext()).getPackageInfo();
StringBuffer exceptionStr = new StringBuffer();
exceptionStr.append("Version: " + pinfo.versionName + "(" + pinfo.versionCode + ")\n");
exceptionStr.append("Android: " + android.os.Build.VERSION.RELEASE + "(" + android.os.Build.MODEL
+ ")\n");
exceptionStr.append("Exception: " + ex.getMessage() + "\n");
StackTraceElement[] elements = ex.getStackTrace();
for (int i = 0; i < elements.length; i++) {
exceptionStr.append(elements[i].toString() + "\n");
}
return exceptionStr.toString();
}
}