| /* |
| * 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.NonNull; |
| import android.annotation.SystemApi; |
| import android.os.RemoteException; |
| import android.telephony.ims.ImsExternalCallState; |
| import android.util.Log; |
| |
| import com.android.ims.internal.IImsExternalCallStateListener; |
| import com.android.ims.internal.IImsMultiEndpoint; |
| import com.android.internal.telephony.util.TelephonyUtils; |
| |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.concurrent.CancellationException; |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.CompletionException; |
| import java.util.concurrent.Executor; |
| |
| /** |
| * Base implementation of ImsMultiEndpoint, which implements stub versions of the methods |
| * in the IImsMultiEndpoint AIDL. Override the methods that your implementation of |
| * ImsMultiEndpoint supports. |
| * |
| * DO NOT remove or change the existing APIs, only add new ones to this Base implementation or you |
| * will break other implementations of ImsMultiEndpoint maintained by other ImsServices. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public class ImsMultiEndpointImplBase { |
| private static final String TAG = "MultiEndpointImplBase"; |
| |
| private IImsExternalCallStateListener mListener; |
| private final Object mLock = new Object(); |
| private Executor mExecutor = Runnable::run; |
| |
| private final IImsMultiEndpoint mImsMultiEndpoint = new IImsMultiEndpoint.Stub() { |
| |
| @Override |
| public void setListener(IImsExternalCallStateListener listener) throws RemoteException { |
| executeMethodAsync(() -> { |
| if (mListener != null && !mListener.asBinder().isBinderAlive()) { |
| Log.w(TAG, "setListener: discarding dead Binder"); |
| mListener = null; |
| } |
| if (mListener != null && listener != null && Objects.equals( |
| mListener.asBinder(), listener.asBinder())) { |
| return; |
| } |
| |
| if (listener == null) { |
| mListener = null; |
| } else if (listener != null && mListener == null) { |
| mListener = listener; |
| } else { |
| // Warn that the listener is being replaced while active |
| Log.w(TAG, "setListener is being called when there is already an active " |
| + "listener"); |
| mListener = listener; |
| } |
| }, "setListener"); |
| } |
| |
| @Override |
| public void requestImsExternalCallStateInfo() throws RemoteException { |
| executeMethodAsync(() -> ImsMultiEndpointImplBase.this |
| .requestImsExternalCallStateInfo(), "requestImsExternalCallStateInfo"); |
| } |
| |
| // Call the methods with a clean calling identity on the executor and wait indefinitely for |
| // the future to return. |
| private void executeMethodAsync(Runnable r, String errorLogName) { |
| try { |
| CompletableFuture.runAsync( |
| () -> TelephonyUtils.runWithCleanCallingIdentity(r), mExecutor).join(); |
| } catch (CancellationException | CompletionException e) { |
| Log.w(TAG, "ImsMultiEndpointImplBase Binder - " + errorLogName + " exception: " |
| + e.getMessage()); |
| } |
| } |
| }; |
| |
| /** @hide */ |
| public IImsMultiEndpoint getIImsMultiEndpoint() { |
| return mImsMultiEndpoint; |
| } |
| |
| /** |
| * Notifies framework when Dialog Event Package update is received |
| * |
| * @throws RuntimeException if the connection to the framework is not available. |
| */ |
| public final void onImsExternalCallStateUpdate(List<ImsExternalCallState> externalCallDialogs) { |
| Log.d(TAG, "ims external call state update triggered."); |
| IImsExternalCallStateListener listener; |
| synchronized (mLock) { |
| listener = mListener; |
| } |
| if (listener != null) { |
| try { |
| listener.onImsExternalCallStateUpdate(externalCallDialogs); |
| } catch (RemoteException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| |
| /** |
| * This method should be implemented by the IMS provider. Framework will trigger this to get the |
| * latest Dialog Event Package information. Should |
| */ |
| public void requestImsExternalCallStateInfo() { |
| Log.d(TAG, "requestImsExternalCallStateInfo() not implemented"); |
| } |
| |
| /** |
| * Set default Executor from MmTelFeature. |
| * @param executor The default executor for the framework to use when executing the methods |
| * overridden by the implementation of ImsMultiEndpoint. |
| * @hide |
| */ |
| public final void setDefaultExecutor(@NonNull Executor executor) { |
| mExecutor = executor; |
| } |
| } |