高效的Kullback–Leibler计算（kullback–leibler divergence）

25-01-26 35

在这篇文章中，我们将带领您了解高效的Kullback–Leibler计算的全貌，包括kullback–leiblerdivergence的相关情况。同时，我们还将为您介绍有关014-CallbackS

在这篇文章中，我们将带领您了解高效的Kullback–Leibler计算的全貌，包括kullback–leibler divergence的相关情况。同时，我们还将为您介绍有关014-CallbackServlet代码、Android "handleReceiveCallback"报错原因、android.app.backup.FileBackupHelper的实例源码、android.content.pm.IPackageInstallerCallback的实例源码的知识，以帮助您更好地理解这个主题。

本文目录一览：

高效的Kullback–Leibler计算（kullback–leibler divergence）
014-CallbackServlet代码
Android "handleReceiveCallback"报错原因
android.app.backup.FileBackupHelper的实例源码
android.content.pm.IPackageInstallerCallback的实例源码

高效的Kullback–Leibler计算（kullback–leibler divergence）

您可以使用SSE instructions来并行计算许多值的对数。但是，您是否真正可以使用这些指令在很大程度上取决于您将要进行的其余计算如何取决于所计算的对数，因此不可能给出更具体的答案。

014-CallbackServlet代码

package ${enclosing_package};

import java.io.IOException;
import java.util.ResourceBundle;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

// 导入PaymentUtils工具类包
import www.test.utils.PaymentUtils;

/**
 * 该Servlet会在支付成功后 进行调用----- 支付公司 、客户
 * 
 * @author seawind
 * 
 */
public class ${primary_type_name} extends HttpServlet {

    public void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        // 获得回调所有数据
        String p1_MerId = request.getParameter("p1_MerId");
        String r0_Cmd = request.getParameter("r0_Cmd");
        String r1_Code = request.getParameter("r1_Code");
        String r2_TrxId = request.getParameter("r2_TrxId");
        String r3_Amt = request.getParameter("r3_Amt");
        String r4_Cur = request.getParameter("r4_Cur");
        String r5_Pid = request.getParameter("r5_Pid");
        String r6_Order = request.getParameter("r6_Order");
        String r7_Uid = request.getParameter("r7_Uid");
        String r8_MP = request.getParameter("r8_MP");
        String r9_BType = request.getParameter("r9_BType");
        String rb_BankId = request.getParameter("rb_BankId");
        String ro_BankOrderId = request.getParameter("ro_BankOrderId");
        String rp_PayDate = request.getParameter("rp_PayDate");
        String rq_CardNo = request.getParameter("rq_CardNo");
        String ru_Trxtime = request.getParameter("ru_Trxtime");
        // 身份校验 --- 判断是不是支付公司通知你
        String hmac = request.getParameter("hmac");
        String keyValue = ResourceBundle.getBundle("merchantInfo").getString(
                "keyValue");

        // 自己对上面数据进行加密 --- 比较支付公司发过来hamc
        boolean isValid = PaymentUtils.verifyCallback(hmac, p1_MerId, r0_Cmd,
                r1_Code, r2_TrxId, r3_Amt, r4_Cur, r5_Pid, r6_Order, r7_Uid,
                r8_MP, r9_BType, keyValue);
                
                
        if (isValid) {
            // 响应数据有效
            if (r9_BType.equals("1")) {
                // 浏览器重定向
                response.setContentType("text/html;charset=utf-8");
                response.getWriter().println("<h1>付款成功！等待商城进一步操作！等待收货...</h1>");
            } else if (r9_BType.equals("2")) {  //实际开发的时候有外网地址，代码写在这里。
                // 服务器点对点 --- 支付公司通知你
                System.out.println("付款成功！");
                // 修改订单状态 为已付款
                // 回复支付公司
                response.getWriter().print("success");
            }
        } else {
            // 数据无效
            System.out.println("数据被篡改！");
        }
    }

    public void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        doGet(request, response);
    }

}

Android

Android "handleReceiveCallback"报错原因

Exception in MessageQueue callback: handleReceiveCallback

出现原因：

多次触发触摸屏事件，导致对同一个事件处理的消息过多，当第一个消息已处理完事件并销毁事件时，由于该事件已销毁但还没来得及通知销毁第二个同样的消息，当主线程执行第二个消息时，由于获取不了该事件，所以抛出异常

解决方法：

用try..catch..包围TouchEvent事件处理

android.app.backup.FileBackupHelper的实例源码

项目：GitHub 文件：BackupAgent.java

@Override
public void onCreate() {
    Log.d("ConnectBot.BackupAgent","onCreate called");

    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);

    SharedPreferencesBackupHelper prefsHelper = new SharedPreferencesBackupHelper(this,getPackageName() + "_preferences");
    addHelper(PreferenceConstants.BACKUP_PREF_KEY,prefsHelper);

    FileBackupHelper hosts = new FileBackupHelper(this,"../databases/" + HostDatabase.DB_NAME);
    addHelper(HostDatabase.DB_NAME,hosts);

    if (prefs.getBoolean(PreferenceConstants.BACKUP_KEYS,PreferenceConstants.BACKUP_KEYS_DEFAULT)) {
        FileBackupHelper pubkeys = new FileBackupHelper(this,"../databases/" + PubkeyDatabase.DB_NAME);
        addHelper(PubkeyDatabase.DB_NAME,pubkeys);
    }
}

项目：BgLogger 文件：MyBackupAgent.java

@Override
public void onCreate() {
    // Todo Auto-generated method stub
    FileBackupHelper helper1 = new FileBackupHelper(this,db1);
    addHelper(db1,helper1);

    FileBackupHelper helper2 = new FileBackupHelper(this,db2);
    addHelper(db2,helper2);

    FileBackupHelper helper3 = new FileBackupHelper(this,db3);
    addHelper(db3,helper3);

    FileBackupHelper helper4 = new FileBackupHelper(this,db4);
    addHelper(db4,helper4);

    FileBackupHelper helper5 = new FileBackupHelper(this,db5);
    addHelper(db5,helper5);

}

项目：2048-Battles 文件：TheBackupAgent.java

@Override
public void onCreate() {

    Log.d(LOG_TAG,"on create backup agent");
    Log.d(LOG_TAG,CURRENT_GAME_FILENAME);
    Log.d(LOG_TAG,GAME_STATS_FILENAME);

    FileBackupHelper helper = new FileBackupHelper(this,CURRENT_GAME_FILENAME,GAME_STATS_FILENAME);

    /*
    SharedPreferencesBackupHelper helper =
               new SharedPreferencesBackupHelper(this,GAME_PREFS_FILENAME);
    */

    addHelper(FILES_BACKUP_KEY,helper);

}

项目：buildAPKsSamples 文件：FileHelperExampleAgent.java

/**
 * The {@link android.app.backup.FileBackupHelper FileBackupHelper} class
 * does nearly all of the work for our use case:  backup and restore of a
 * file stored within our application's getFilesDir() location.  It will
 * also handle files stored at any subpath within that location.  All we
 * need to do is a bit of one-time configuration: installing the helper
 * when this agent object is created.
 */
@Override
public void onCreate() {
    // All we need to do when working within the BackupAgentHelper mechanism
    // is to install the helper that will process and back up the files we
    // care about.  In this case,it's just one file.
    FileBackupHelper helper = new FileBackupHelper(this,BackupRestoreActivity.DATA_FILE_NAME);
    addHelper(FILE_HELPER_KEY,helper);
}

项目：octoandroid 文件：OctoBackupAgent.java

@Override
public void onCreate() {
    SharedPreferencesBackupHelper prefBackupHelper = new SharedPreferencesBackupHelper(this,DEFAULT_PREFS_FILENAME);
    addHelper(DEFAULT_PREFS_KEY,prefBackupHelper);

    // Todo not sure if need to implement synchronized since GreenDAO is thread safe...
    FileBackupHelper dbBackupHelper = new FileBackupHelper(this,StorageModule.DB_NAME);
    addHelper(PRINTER_DB_KEY,dbBackupHelper);
}

项目：flavordex 文件：FlavordexBackupAgent.java

@Override
public void onCreate() {
    super.onCreate();

    final FileBackupHelper db = new FileBackupHelper(this,"../databases/" + DatabaseHelper.DATABASE_NAME);
    addHelper(KEY_DB,db);
}

项目：connectbot 文件：BackupAgent.java

@Override
public void onCreate() {
    Log.d("ConnectBot.BackupAgent","onCreate called");

    SharedPreferencesBackupHelper prefs = new SharedPreferencesBackupHelper(this,prefs);

    FileBackupHelper hosts = new FileBackupHelper(this,hosts);

    FileBackupHelper pubkeys = new FileBackupHelper(this,"../databases/" + PubkeyDatabase.DB_NAME);
    addHelper(PubkeyDatabase.DB_NAME,pubkeys);

}

项目：GoogleCloudApp_Tutorial 文件：BackupAPI.java

@Override
public void onCreate() {
    FileBackupHelper helperFileBackupHelper = new FileBackupHelper(this,HIGH_scoreS_FILENAME);
    addHelper(FILES_BACKUP_KEY,helperFileBackupHelper);

    SharedPreferencesBackupHelper helperSharedPreferencesBackupHelper =
            new SharedPreferencesBackupHelper(this,PREFS_disPLAY,PREFS_scoreS);
    addHelper(MY_PREFS_BACKUP_KEY,helperSharedPreferencesBackupHelper);
}

项目：android-giftwise 文件：BackupAgent.java

@Override
public void onCreate() {
    Log.d(LOG_TAG,"onCreate called");

    FileBackupHelper giftwise_database = new FileBackupHelper(this,"../databases/" + DbHelper.DATABASE_NAME);
    addHelper(DbHelper.DATABASE_NAME,giftwise_database);
}

项目：cowbird 文件：APBackupAgent.java

@Override
    public void onCreate() {
//        getDatabasePath(DB_NAME).getAbsolutePath()
        FileBackupHelper dbs = new FileBackupHelper(this,DB_NAME);
        SharedPreferencesBackupHelper helper =
                new SharedPreferencesBackupHelper(this,getPackageName() + "_preferences");
        addHelper("prefs",helper);
        addHelper("dbs",dbs);
    }

项目：Key-Value-Backup-API-Sample 文件：BackupAgent.java

@Override
public void onCreate() {
    super.onCreate();

    FileBackupHelper helper = new FileBackupHelper(this,"one.txt","two.txt","three.txt");
    addHelper("myfiles",helper);
}

项目：ServeStream 文件：BackupAgent.java

@Override
  public void onCreate() {

    Log.v(TAG,"onCreate called");

      SharedPreferencesBackupHelper prefs = new SharedPreferencesBackupHelper(this,getPackageName() +
            "_preferences");
      addHelper(PreferenceConstants.BACKUP_PREF_KEY,prefs);

FileBackupHelper streams = new FileBackupHelper(this,"../databases/" + StreamDatabase.DATABASE_NAME);
addHelper(StreamDatabase.DATABASE_NAME,streams);

FileBackupHelper alarms = new FileBackupHelper(this,"../databases/" + DatabaseHelper.DATABASE_NAME);
addHelper(DatabaseHelper.DATABASE_NAME,alarms);
  }

项目：CeaselessAndroid 文件：AppBackupAgentHelper.java

@Override
public void onCreate() {
    SharedPreferencesBackupHelper helper = new SharedPreferencesBackupHelper(this,Constants.DEFAULT_PREFERENCES_FILE);
    addHelper(PREFS_BACKUP_KEY,helper);
    FileBackupHelper fileBackupHelper = new FileBackupHelper(this,Constants.REALM_FILE_NAME);
    addHelper(FILES_BACKUP_KEY,fileBackupHelper);
}

项目：novelty 文件：BackupAgent.java

@Override
public void onCreate() {
    SharedPreferencesBackupHelper sharedPrefsHelper = new SharedPreferencesBackupHelper(this,DEFAULT_SHARED_PREFS_NAME);
    addHelper(SHARED_PREFS_BACKUP_KEY,sharedPrefsHelper);

    FileBackupHelper fileHelper = new FileBackupHelper(this,"../databases/" + DbProvider.DB_NAME);
    addHelper(DbProvider.DB_NAME,fileHelper);

    super.onCreate();
}

项目：android-money-manager-ex 文件：MoneyManagerBackupAgentHelper.java

@Override
public void onCreate() {
    super.onCreate();

    // create helper preferences
    SharedPreferencesBackupHelper appHelper = new SharedPreferencesBackupHelper(this,getPackageName() + "_preferences");
    SharedPreferencesBackupHelper dropBoxHelper = new SharedPreferencesBackupHelper(this,getPackageName() + "_dropBox_preferences");
    // create helper files
    FileBackupHelper databaseHelper = new FileBackupHelper(this,MmexApplication.getDatabasePath(getApplicationContext()));

    addHelper(KEY_BACKUP_APP_PREFERENCES,appHelper);
    addHelper(KEY_BACKUP_DROPBox_PREFERENCES,dropBoxHelper);
    // todo: addHelper(KEY_BACKUP_RECENT_DB_PREFERENCES,dr);
    addHelper(KEY_BACKUP_DB,databaseHelper);
}

项目：SafeSlinger-Android 文件：KeyBackupAgent.java

@Override
public void onCreate() {

    SharedPreferencesBackupHelper phelper = new SharedPreferencesBackupHelper(this,SafeSlingerPrefs.PREFS_RECOVER_YES);
    addHelper(PREFS_BACKUP_KEY,phelper);

    FileBackupHelper fhelper = new FileBackupHelper(this,getBackupFiles());
    addHelper(FILES_BACKUP_KEY,fhelper);
}

项目：servestream 文件：BackupAgent.java

@Override
  public void onCreate() {

    Log.v(TAG,alarms);
  }

项目：CineTime 文件：CineTimeBackupHelper.java

@Override
public void onCreate() {
    SharedPreferencesBackupHelper helper = new SharedPreferencesBackupHelper(this,PREFS);
    addHelper(PREFS_BACKUP_KEY,helper);
    FileBackupHelper helperF = new FileBackupHelper(this,DB);
    addHelper(FILES_BACKUP_KEY,helperF);
}

项目：appkicker 文件：InstallationBackupAgent.java

@Override
public void onCreate() {
    FileBackupHelper filesHelper = new FileBackupHelper(this,DeviceObserver.INSTALLATION);
    addHelper(FILES_BACKUP_KEY,filesHelper);
}

项目：LabCam 文件：BackupFileHelper.java

@Override
public void onCreate() {
    FileBackupHelper helper = new FileBackupHelper(this,fileName);
    addHelper(PFILES_BACKUP_KEY,helper);
}

项目：KinoCast 文件：BackupAgent.java

@Override
public void onCreate() {
    FileBackupHelper helper = new FileBackupHelper(this,BOOKMARKS_FILENAME);
    addHelper(FILES_BACKUP_KEY,helper);
}

项目：ministocks 文件：BackupAgent.java

public void onCreate() {
    FileBackupHelper helper = new FileBackupHelper(this,PortfolioStockRepository.PORTFOLIO_JSON);
    addHelper(FILES_BACKUP_KEY,helper);
}

项目：appsensor 文件：InstallationBackupAgent.java

@Override
public void onCreate() {
    FileBackupHelper filesHelper = new FileBackupHelper(this,filesHelper);
}

android.content.pm.IPackageInstallerCallback的实例源码

项目：VirtualHook 文件：VPackageInstallerService.java

@Override
public void handleMessage(Message msg) {
    final int userId = msg.arg2;
    final int n = mCallbacks.beginbroadcast();
    for (int i = 0; i < n; i++) {
        final IPackageInstallerCallback callback = mCallbacks.getbroadcastItem(i);
        final VUserHandle user = (VUserHandle) mCallbacks.getbroadcastCookie(i);
        // Todo: dispatch notifications for slave profiles
        if (userId == user.getIdentifier()) {
            try {
                invokeCallback(callback,msg);
            } catch (remoteexception ignored) {
            }
        }
    }
    mCallbacks.finishbroadcast();
}

项目：VirtualHook 文件：VPackageInstallerService.java

private void invokeCallback(IPackageInstallerCallback callback,Message msg)
        throws remoteexception {
    final int sessionId = msg.arg1;
    switch (msg.what) {
        case MSG_SESSION_CREATED:
            callback.onSessionCreated(sessionId);
            break;
        case MSG_SESSION_BADGING_CHANGED:
            callback.onSessionBadgingChanged(sessionId);
            break;
        case MSG_SESSION_ACTIVE_CHANGED:
            callback.onSessionActiveChanged(sessionId,(boolean) msg.obj);
            break;
        case MSG_SESSION_PROGRESS_CHANGED:
            callback.onSessionProgressChanged(sessionId,(float) msg.obj);
            break;
        case MSG_SESSION_FINISHED:
            callback.onSessionFinished(sessionId,(boolean) msg.obj);
            break;
    }
}

项目：TPlayer 文件：VPackageInstallerService.java

@Override
public void handleMessage(Message msg) {
    final int userId = msg.arg2;
    final int n = mCallbacks.beginbroadcast();
    for (int i = 0; i < n; i++) {
        final IPackageInstallerCallback callback = mCallbacks.getbroadcastItem(i);
        final VUserHandle user = (VUserHandle) mCallbacks.getbroadcastCookie(i);
        // Todo: dispatch notifications for slave profiles
        if (userId == user.getIdentifier()) {
            try {
                invokeCallback(callback,msg);
            } catch (remoteexception ignored) {
            }
        }
    }
    mCallbacks.finishbroadcast();
}

项目：TPlayer 文件：VPackageInstallerService.java

private void invokeCallback(IPackageInstallerCallback callback,(boolean) msg.obj);
            break;
    }
}

项目：container 文件：VPackageInstallerService.java

@Override
public void handleMessage(Message msg) {
    final int userId = msg.arg2;
    final int n = mCallbacks.beginbroadcast();
    for (int i = 0; i < n; i++) {
        final IPackageInstallerCallback callback = mCallbacks.getbroadcastItem(i);
        final VUserHandle user = (VUserHandle) mCallbacks.getbroadcastCookie(i);
        // Todo: dispatch notifications for slave profiles
        if (userId == user.getIdentifier()) {
            try {
                invokeCallback(callback,msg);
            } catch (remoteexception ignored) {
            }
        }
    }
    mCallbacks.finishbroadcast();
}

项目：container 文件：VPackageInstallerService.java

private void invokeCallback(IPackageInstallerCallback callback,(boolean) msg.obj);
            break;
    }
}

项目：VirtualHook 文件：VPackageInstallerService.java

@Override
public void registerCallback(IPackageInstallerCallback callback,int userId) throws remoteexception {
    mCallbacks.register(callback,userId);
}

项目：VirtualHook 文件：VPackageInstallerService.java

@Override
public void unregisterCallback(IPackageInstallerCallback callback) throws remoteexception {
    mCallbacks.unregister(callback);
}

项目：VirtualHook 文件：VPackageInstallerService.java

public void register(IPackageInstallerCallback callback,int userId) {
    mCallbacks.register(callback,new VUserHandle(userId));
}

项目：VirtualHook 文件：VPackageInstallerService.java

public void unregister(IPackageInstallerCallback callback) {
    mCallbacks.unregister(callback);
}

项目：TPlayer 文件：VPackageInstallerService.java

@Override
public void registerCallback(IPackageInstallerCallback callback,userId);
}

项目：TPlayer 文件：VPackageInstallerService.java

@Override
public void unregisterCallback(IPackageInstallerCallback callback) throws remoteexception {
    mCallbacks.unregister(callback);
}

项目：TPlayer 文件：VPackageInstallerService.java

public void register(IPackageInstallerCallback callback,new VUserHandle(userId));
}

项目：TPlayer 文件：VPackageInstallerService.java

public void unregister(IPackageInstallerCallback callback) {
    mCallbacks.unregister(callback);
}

项目：container 文件：VPackageInstallerService.java

public void register(IPackageInstallerCallback callback,new VUserHandle(userId));
}

项目：container 文件：VPackageInstallerService.java

public void unregister(IPackageInstallerCallback callback) {
    mCallbacks.unregister(callback);
}

项目：container 文件：VPackageInstallerService.java

@Override
public void registerCallback(IPackageInstallerCallback callback,userId);
}

项目：container 文件：VPackageInstallerService.java

@Override
public void unregisterCallback(IPackageInstallerCallback callback) throws remoteexception {
    mCallbacks.unregister(callback);
}

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