CrashHandler.java

package com.kitty.poclient.common;
//startA
import java.io.File;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.lang.Thread.UncaughtExceptionHandler;
import java.lang.reflect.Field;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import android.content.Context;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.Build;
import android.os.Environment;
import android.os.Looper;
import android.util.Log;
import android.widget.Toast;

import com.kitty.poclient.R;
import com.kitty.poclient.widget.CustomToast;
  
/** 
 * UncaughtException������,��������Uncaught�쳣��ʱ��,�и������ӹܳ���,����¼���ʹ��󱨸�. 
 * 
 * @author user 
 *  
 */  
public class CrashHandler implements UncaughtExceptionHandler {  
      
	public static boolean exceptionAlreadyGiven=false;
    public static final String TAG = "CrashHandler";  
      
    //ϵͳĬ�ϵ�UncaughtException������   
    private Thread.UncaughtExceptionHandler mDefaultHandler;  
    //CrashHandlerʵ��  
    private static CrashHandler INSTANCE = null;  
    //�����Context����  
    private Context mContext;  
    //�����洢�豸��Ϣ���쳣��Ϣ  
    private Map<String, String> infos = new HashMap<String, String>();  
  
    //���ڸ�ʽ������,��Ϊ��־�ļ����һ����  
    private DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");  
  
    /** ��ֻ֤��һ��CrashHandlerʵ�� */  
    private CrashHandler() {  
    }  
  
    /** ��ȡCrashHandlerʵ�� ,����ģʽ */  
    public static CrashHandler getInstance() { 
    	if(null==INSTANCE){
    		INSTANCE = new CrashHandler();
    	}
        return INSTANCE;  
    }  
  
    /** 
     * ��ʼ�� 
     *  
     * @param context 
     */  
    public void init(Context context) {  
        mContext = context;  
        //��ȡϵͳĬ�ϵ�UncaughtException������  
        mDefaultHandler = Thread.getDefaultUncaughtExceptionHandler();  
        //���ø�CrashHandlerΪ�����Ĭ�ϴ�����  
        Thread.setDefaultUncaughtExceptionHandler(this);  
    }  
  
    /** 
     * ��UncaughtException����ʱ��ת��ú��������� 
     */  
    @Override  
    public void uncaughtException(Thread thread, Throwable ex) {  
        if (!handleException(ex) && mDefaultHandler != null) {  
            mDefaultHandler.uncaughtException(thread, ex);  
        } else {  
            try {  
                Thread.sleep(1000);  
            } catch (InterruptedException e) {  
                Log.e(TAG, "UncaughtException error : ", e);  
            }  
            //�˳�����  
            android.os.Process.killProcess(android.os.Process.myPid());  
            System.exit(1);  
        }  
    }  
  
    /** 
     * @param ex 
     * @return true:������˸��쳣��Ϣ;���򷵻�false. 
     */  
    private boolean handleException(final Throwable ex) {
        if (ex == null) {  
            return false;  
        }  
        //ʹ��Toast����ʾ�쳣��Ϣ  
        new Thread() {  
            @Override  
            public void run() {  
                Looper.prepare();  
                if (exceptionAlreadyGiven==false) {
                	System.out.println("handleException:ex="+ex);
//                	CustomToast.makeText(mContext, "连接中断，请重新连接设备", Toast.LENGTH_SHORT).show();  
//                	UpnpApp.mainHandler.showAlert(R.string.device_disconnect_alert);
                	UpnpApp.reconnect();
				}                
                Looper.loop();  
            }  
        }.start();  
        //�ռ��豸������Ϣ   
        collectDeviceInfo(mContext);  
        //������־�ļ�   
        saveCrashInfo2File(ex);  
        Log.d(TAG, ex.toString());
        return true;  
    }  
      
    /** 
     * �ռ��豸������Ϣ 
     * @param ctx 
     */  
    public void collectDeviceInfo(Context ctx) {  
        try {  
            PackageManager pm = ctx.getPackageManager();  
            PackageInfo pi = pm.getPackageInfo(ctx.getPackageName(), PackageManager.GET_ACTIVITIES);  
            if (pi != null) {  
                String versionName = pi.versionName == null ? "null" : pi.versionName;  
                String versionCode = pi.versionCode + "";  
                infos.put("versionName", versionName);  
                infos.put("versionCode", versionCode);  
            }  
        } catch (NameNotFoundException e) {  
            Log.e(TAG, "an error occured when collect package info", e);  
        }  
        Field[] fields = Build.class.getDeclaredFields();  
        for (Field field : fields) {  
            try {  
                field.setAccessible(true);  
                infos.put(field.getName(), field.get(null).toString());  
                Log.d(TAG, field.getName() + " : " + field.get(null));  
            } catch (Exception e) {  
                Log.e(TAG, "an error occured when collect crash info", e);  
            }  
        }  
    }  
  
    /** 
     * ���������Ϣ���ļ��� 
     *  
     * @param ex 
     * @return  �����ļ����,���ڽ��ļ����͵������� 
     */  
    private String saveCrashInfo2File(Throwable ex) {  
          
        StringBuffer sb = new StringBuffer();  
        for (Map.Entry<String, String> entry : infos.entrySet()) {  
            String key = entry.getKey();  
            String value = entry.getValue();  
            sb.append(key + "=" + value + "\n");  
        }  
          
        Writer writer = new StringWriter();  
        PrintWriter printWriter = new PrintWriter(writer);  
        ex.printStackTrace(printWriter);  
        Throwable cause = ex.getCause();  
        while (cause != null) {  
            cause.printStackTrace(printWriter);  
            cause = cause.getCause();  
        }  
        printWriter.close();  
        String result = writer.toString();  
        sb.append(result);  
        try {  
            long timestamp = System.currentTimeMillis();  
            String time = formatter.format(new Date());  
            String fileName = "crash-" + time + "-" + timestamp + ".log";  
            if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {  
                String path = "/mnt/sdcard/cellremote/"; 
                File dir = new File(path);  
                if (!dir.exists()) {  
                    dir.mkdirs();  
                }  
                FileOutputStream fos = new FileOutputStream(path + fileName);  
                fos.write(sb.toString().getBytes());  
                fos.close();  
            }  
            return fileName;  
        } catch (Exception e) {  
            Log.e(TAG, "an error occured while writing file...", e);  
        }  
        return null;  
    }  
    
    public void saveCrashInfo2FileII(String info) {
    	
    	StringBuffer sb = new StringBuffer();  
    	for (Map.Entry<String, String> entry : infos.entrySet()) {  
    		String key = entry.getKey();  
    		String value = entry.getValue();  
    		sb.append(key + "=" + value + "\n");
    	}  
    	
//    	Writer writer = new StringWriter();  
//    	PrintWriter printWriter = new PrintWriter(writer);  
//    	ex.printStackTrace(printWriter);
//    	Throwable cause = ex.getCause();  
//    	while (cause != null) {  
//    		cause.printStackTrace(printWriter);  
//    		cause = cause.getCause();  
//    	}  
//    	printWriter.close();  
//    	String result = writer.toString();  
    	sb.append(info);  
    	try {  
    		long timestamp = System.currentTimeMillis();  
    		String time = formatter.format(new Date());  
    		String fileName = "sub-" + time + "-" + timestamp + ".log";  
    		if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {  
    			String path = "/mnt/sdcard/cellremote-sub/"; 
    			File dir = new File(path);  
    			if (!dir.exists()) {  
    				dir.mkdirs();  
    			}  
    			FileOutputStream fos = new FileOutputStream(path + fileName);  
    			fos.write(sb.toString().getBytes());  
    			fos.close();  
    		}   
    	} catch (Exception e) {  
    		Log.e(TAG, "an error occured while writing file...", e);  
    	}  
    }  
}