content: /*
   * Copyright (C) 2017 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package android.net;
  
  import android.annotation.SystemService;
  import android.content.Context;
  import android.os.RemoteException;
  import android.os.ServiceManager;
  import android.util.Log;
  
  import com.android.internal.net.INetworkWatchlistManager;
  import com.android.internal.util.Preconditions;
  
  /**
   * Class that manage network watchlist in system.
   * @hide
   */
  @SystemService(Context.NETWORK_WATCHLIST_SERVICE)
  public class NetworkWatchlistManager {
  
      private static final String TAG = "NetworkWatchlistManager";
      private static final String SHARED_MEMORY_TAG = "NETWORK_WATCHLIST_SHARED_MEMORY";
  
      private final Context mContext;
      private final INetworkWatchlistManager mNetworkWatchlistManager;
  
      /**
       * @hide
       */
      public NetworkWatchlistManager(Context context, INetworkWatchlistManager manager) {
          mContext = context;
          mNetworkWatchlistManager = manager;
      }
  
      /**
       * @hide
       */
      public NetworkWatchlistManager(Context context) {
          mContext = Preconditions.checkNotNull(context, "missing context");
          mNetworkWatchlistManager = (INetworkWatchlistManager)
                  INetworkWatchlistManager.Stub.asInterface(
                          ServiceManager.getService(Context.NETWORK_WATCHLIST_SERVICE));
      }
  
      /**
       * Report network watchlist records if necessary.
       *
       * Watchlist report process will summarize records into a single report, then the
       * report will be processed by differential privacy framework and stored on disk.
       *
       * @hide
       */
      public void reportWatchlistIfNecessary() {
          try {
              mNetworkWatchlistManager.reportWatchlistIfNecessary();
          } catch (RemoteException e) {
              Log.e(TAG, "Cannot report records", e);
              e.rethrowFromSystemServer();
          }
      }
  
      /**
       * Reload network watchlist.
       *
       * @hide
       */
      public void reloadWatchlist() {
          try {
              mNetworkWatchlistManager.reloadWatchlist();
          } catch (RemoteException e) {
              Log.e(TAG, "Unable to reload watchlist");
              e.rethrowFromSystemServer();
          }
      }
  
      /**
       * Get Network Watchlist config file hash.
       */
      public byte[] getWatchlistConfigHash() {
          try {
              return mNetworkWatchlistManager.getWatchlistConfigHash();
          } catch (RemoteException e) {
              Log.e(TAG, "Unable to get watchlist config hash");
              throw e.rethrowFromSystemServer();
          }
      }
  }
  