content: /*
   * Copyright (C) 2019 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.NonNull;
  import android.os.Binder;
  import android.os.RemoteException;
  import android.util.Log;
  
  /**
   * A convenience wrapper for INetworkMonitor.
   *
   * Wraps INetworkMonitor calls, making them a bit more friendly to use. Currently handles:
   * - Clearing calling identity
   * - Ignoring RemoteExceptions
   * - Converting to stable parcelables
   *
   * By design, all methods on INetworkMonitor are asynchronous oneway IPCs and are thus void. All the
   * wrapper methods in this class return a boolean that callers can use to determine whether
   * RemoteException was thrown.
   */
  public class NetworkMonitorManager {
  
      @NonNull private final INetworkMonitor mNetworkMonitor;
      @NonNull private final String mTag;
  
      public NetworkMonitorManager(@NonNull INetworkMonitor networkMonitorManager,
              @NonNull String tag) {
          mNetworkMonitor = networkMonitorManager;
          mTag = tag;
      }
  
      public NetworkMonitorManager(@NonNull INetworkMonitor networkMonitorManager) {
          this(networkMonitorManager, NetworkMonitorManager.class.getSimpleName());
      }
  
      private void log(String s, Throwable e) {
          Log.e(mTag, s, e);
      }
  
      // CHECKSTYLE:OFF Generated code
  
      public boolean start() {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.start();
              return true;
          } catch (RemoteException e) {
              log("Error in start", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      public boolean launchCaptivePortalApp() {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.launchCaptivePortalApp();
              return true;
          } catch (RemoteException e) {
              log("Error in launchCaptivePortalApp", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      public boolean notifyCaptivePortalAppFinished(int response) {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.notifyCaptivePortalAppFinished(response);
              return true;
          } catch (RemoteException e) {
              log("Error in notifyCaptivePortalAppFinished", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      public boolean setAcceptPartialConnectivity() {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.setAcceptPartialConnectivity();
              return true;
          } catch (RemoteException e) {
              log("Error in setAcceptPartialConnectivity", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      public boolean forceReevaluation(int uid) {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.forceReevaluation(uid);
              return true;
          } catch (RemoteException e) {
              log("Error in forceReevaluation", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      public boolean notifyPrivateDnsChanged(PrivateDnsConfigParcel config) {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.notifyPrivateDnsChanged(config);
              return true;
          } catch (RemoteException e) {
              log("Error in notifyPrivateDnsChanged", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      public boolean notifyDnsResponse(int returnCode) {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.notifyDnsResponse(returnCode);
              return true;
          } catch (RemoteException e) {
              log("Error in notifyDnsResponse", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      public boolean notifyNetworkConnected(LinkProperties lp, NetworkCapabilities nc) {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.notifyNetworkConnected(lp, nc);
              return true;
          } catch (RemoteException e) {
              log("Error in notifyNetworkConnected", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      public boolean notifyNetworkDisconnected() {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.notifyNetworkDisconnected();
              return true;
          } catch (RemoteException e) {
              log("Error in notifyNetworkDisconnected", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      public boolean notifyLinkPropertiesChanged(LinkProperties lp) {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.notifyLinkPropertiesChanged(lp);
              return true;
          } catch (RemoteException e) {
              log("Error in notifyLinkPropertiesChanged", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      public boolean notifyNetworkCapabilitiesChanged(NetworkCapabilities nc) {
          final long token = Binder.clearCallingIdentity();
          try {
              mNetworkMonitor.notifyNetworkCapabilitiesChanged(nc);
              return true;
          } catch (RemoteException e) {
              log("Error in notifyNetworkCapabilitiesChanged", e);
              return false;
          } finally {
              Binder.restoreCallingIdentity(token);
          }
      }
  
      // CHECKSTYLE:ON Generated code
  }
  