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.telephony.ims.stub;
  
  import android.annotation.SystemApi;
  import android.os.RemoteException;
  import android.util.Log;
  
  import com.android.ims.internal.IImsEcbm;
  import com.android.ims.internal.IImsEcbmListener;
  
  /**
   * Base implementation of ImsEcbm, which implements stub versions of the methods
   * in the IImsEcbm AIDL. Override the methods that your implementation of ImsEcbm supports.
   *
   * DO NOT remove or change the existing APIs, only add new ones to this Base implementation or you
   * will break other implementations of ImsEcbm maintained by other ImsServices.
   *
   * @hide
   */
  @SystemApi
  public class ImsEcbmImplBase {
      private static final String TAG = "ImsEcbmImplBase";
  
      private IImsEcbmListener mListener;
      private IImsEcbm mImsEcbm = new IImsEcbm.Stub() {
          @Override
          public void setListener(IImsEcbmListener listener) {
              mListener = listener;
          }
  
          @Override
          public void exitEmergencyCallbackMode() {
              ImsEcbmImplBase.this.exitEmergencyCallbackMode();
          }
      };
  
      /** @hide */
      public IImsEcbm getImsEcbm() {
          return mImsEcbm;
      }
  
      /**
       * This method should be implemented by the IMS provider. Framework will trigger this method to
       * request to come out of ECBM mode
       */
      public void exitEmergencyCallbackMode() {
          Log.d(TAG, "exitEmergencyCallbackMode() not implemented");
      }
  
      /**
       * Notifies the framework when the device enters Emergency Callback Mode.
       *
       * @throws RuntimeException if the connection to the framework is not available.
       */
      public final void enteredEcbm() {
          Log.d(TAG, "Entered ECBM.");
          if (mListener != null) {
              try {
                  mListener.enteredECBM();
              } catch (RemoteException e) {
                  throw new RuntimeException(e);
              }
          }
      }
  
      /**
       * Notifies the framework when the device exits Emergency Callback Mode.
       *
       * @throws RuntimeException if the connection to the framework is not available.
       */
      public final void exitedEcbm() {
          Log.d(TAG, "Exited ECBM.");
          if (mListener != null) {
              try {
                  mListener.exitedECBM();
              } catch (RemoteException e) {
                  throw new RuntimeException(e);
              }
          }
      }
  }
  