| /* |
| * Copyright (C) 2018 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.service.contentsuggestions; |
| |
| import static com.android.internal.util.function.pooled.PooledLambda.obtainMessage; |
| |
| import android.annotation.CallSuper; |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.annotation.SystemApi; |
| import android.app.Service; |
| import android.app.contentsuggestions.ClassificationsRequest; |
| import android.app.contentsuggestions.ContentSuggestionsManager; |
| import android.app.contentsuggestions.IClassificationsCallback; |
| import android.app.contentsuggestions.ISelectionsCallback; |
| import android.app.contentsuggestions.SelectionsRequest; |
| import android.content.Intent; |
| import android.graphics.Bitmap; |
| import android.graphics.ColorSpace; |
| import android.graphics.GraphicBuffer; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Looper; |
| import android.os.RemoteException; |
| import android.util.Log; |
| import android.util.Slog; |
| |
| /** |
| * @hide |
| */ |
| @SystemApi |
| public abstract class ContentSuggestionsService extends Service { |
| |
| private static final String TAG = ContentSuggestionsService.class.getSimpleName(); |
| |
| private Handler mHandler; |
| |
| /** |
| * The action for the intent used to define the content suggestions service. |
| * |
| * <p>To be supported, the service must also require the |
| * * {@link android.Manifest.permission#BIND_CONTENT_SUGGESTIONS_SERVICE} permission so |
| * * that other applications can not abuse it. |
| */ |
| public static final String SERVICE_INTERFACE = |
| "android.service.contentsuggestions.ContentSuggestionsService"; |
| |
| private final IContentSuggestionsService mInterface = new IContentSuggestionsService.Stub() { |
| @Override |
| public void provideContextImage(int taskId, GraphicBuffer contextImage, |
| int colorSpaceId, Bundle imageContextRequestExtras) { |
| |
| Bitmap wrappedBuffer = null; |
| if (imageContextRequestExtras.containsKey(ContentSuggestionsManager.EXTRA_BITMAP)) { |
| wrappedBuffer = imageContextRequestExtras.getParcelable( |
| ContentSuggestionsManager.EXTRA_BITMAP); |
| } else { |
| if (contextImage != null) { |
| ColorSpace colorSpace = null; |
| if (colorSpaceId >= 0 && colorSpaceId < ColorSpace.Named.values().length) { |
| colorSpace = ColorSpace.get(ColorSpace.Named.values()[colorSpaceId]); |
| } |
| wrappedBuffer = Bitmap.wrapHardwareBuffer(contextImage, colorSpace); |
| } |
| } |
| |
| mHandler.sendMessage( |
| obtainMessage(ContentSuggestionsService::onProcessContextImage, |
| ContentSuggestionsService.this, taskId, |
| wrappedBuffer, |
| imageContextRequestExtras)); |
| } |
| |
| @Override |
| public void suggestContentSelections(SelectionsRequest request, |
| ISelectionsCallback callback) { |
| mHandler.sendMessage(obtainMessage( |
| ContentSuggestionsService::onSuggestContentSelections, |
| ContentSuggestionsService.this, request, wrapSelectionsCallback(callback))); |
| |
| } |
| |
| @Override |
| public void classifyContentSelections(ClassificationsRequest request, |
| IClassificationsCallback callback) { |
| mHandler.sendMessage(obtainMessage( |
| ContentSuggestionsService::onClassifyContentSelections, |
| ContentSuggestionsService.this, request, wrapClassificationCallback(callback))); |
| } |
| |
| @Override |
| public void notifyInteraction(String requestId, Bundle interaction) { |
| mHandler.sendMessage( |
| obtainMessage(ContentSuggestionsService::onNotifyInteraction, |
| ContentSuggestionsService.this, requestId, interaction)); |
| } |
| }; |
| |
| @CallSuper |
| @Override |
| public void onCreate() { |
| super.onCreate(); |
| mHandler = new Handler(Looper.getMainLooper(), null, true); |
| } |
| |
| /** @hide */ |
| @Override |
| public final IBinder onBind(Intent intent) { |
| if (SERVICE_INTERFACE.equals(intent.getAction())) { |
| return mInterface.asBinder(); |
| } |
| Log.w(TAG, "Tried to bind to wrong intent (should be " + SERVICE_INTERFACE + ": " + intent); |
| return null; |
| } |
| |
| /** |
| * Called by the system to provide the snapshot for the task associated with the given |
| * {@param taskId}. |
| */ |
| public abstract void onProcessContextImage( |
| int taskId, @Nullable Bitmap contextImage, @NonNull Bundle extras); |
| |
| /** |
| * Content selections have been request through {@link ContentSuggestionsManager}, implementer |
| * should reply on the callback with selections. |
| */ |
| public abstract void onSuggestContentSelections(@NonNull SelectionsRequest request, |
| @NonNull ContentSuggestionsManager.SelectionsCallback callback); |
| |
| /** |
| * Content classifications have been request through {@link ContentSuggestionsManager}, |
| * implementer should reply on the callback with classifications. |
| */ |
| public abstract void onClassifyContentSelections(@NonNull ClassificationsRequest request, |
| @NonNull ContentSuggestionsManager.ClassificationsCallback callback); |
| |
| /** |
| * User interactions have been reported through {@link ContentSuggestionsManager}, implementer |
| * should handle those interactions. |
| */ |
| public abstract void onNotifyInteraction( |
| @NonNull String requestId, @NonNull Bundle interaction); |
| |
| private ContentSuggestionsManager.SelectionsCallback wrapSelectionsCallback( |
| ISelectionsCallback callback) { |
| return (statusCode, selections) -> { |
| try { |
| callback.onContentSelectionsAvailable(statusCode, selections); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Error sending result: " + e); |
| } |
| }; |
| } |
| |
| private ContentSuggestionsManager.ClassificationsCallback wrapClassificationCallback( |
| IClassificationsCallback callback) { |
| return ((statusCode, classifications) -> { |
| try { |
| callback.onContentClassificationsAvailable(statusCode, classifications); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Error sending result: " + e); |
| } |
| }); |
| } |
| } |