Merge "[MS30] Remove ServiceManager#getService dependency"

package android.net;

import android.annotation.NonNull;

import android.annotation.Nullable;

import android.annotation.SuppressLint;

import android.annotation.SystemApi;

import android.annotation.TestApi;

import android.content.Context;

import android.media.MediaPlayer;

import android.os.Build;

import android.os.IBinder;

import android.os.RemoteException;

import android.os.ServiceManager;

import com.android.server.NetworkManagementSocketTagger;

import java.io.FileDescriptor;

import java.io.IOException;

import java.lang.reflect.InvocationTargetException;

import java.lang.reflect.Method;

import java.net.DatagramSocket;

import java.net.Socket;

import java.net.SocketException;

 * use {@link NetworkStatsManager} instead.

 */

public class TrafficStats {

    private static final String TAG = TrafficStats.class.getSimpleName();

    /**

     * The return value to indicate that the device does not support the statistic.

     */

    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.P, trackingBug = 130143562)

    private synchronized static INetworkStatsService getStatsService() {

        if (sStatsService == null) {

            sStatsService = INetworkStatsService.Stub.asInterface(

                    ServiceManager.getService(Context.NETWORK_STATS_SERVICE));

            sStatsService = getStatsBinder();

        }

        return sStatsService;

    }

    @Nullable

    private static INetworkStatsService getStatsBinder() {

        try {

            final Method getServiceMethod = Class.forName("android.os.ServiceManager")

                    .getDeclaredMethod("getService", new Class[]{String.class});

            final IBinder binder = (IBinder) getServiceMethod.invoke(

                    null, Context.NETWORK_STATS_SERVICE);

            return INetworkStatsService.Stub.asInterface(binder);

        } catch (NoSuchMethodException | ClassNotFoundException | IllegalAccessException

                | InvocationTargetException e) {

            throw new NullPointerException("Cannot get INetworkStatsService: " + e);

        }

    }

    /**

     * Snapshot of {@link NetworkStats} when the currently active profiling

     * session started, or {@code null} if no session active.

/**

 * Assigns tags to sockets for traffic stats.

 * @hide

 */

public final class NetworkManagementSocketTagger extends SocketTagger {

    private static final String TAG = "NetworkManagementSocketTagger";