1 /* 2 * Copyright (C) 2014 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.notification; 18 19 import android.content.Context; 20 21 /** 22 * Extracts signals that will be useful to the {@link NotificationComparator} and caches them 23 * on the {@link NotificationRecord} object. These annotations will 24 * not be passed on to {@link android.service.notification.NotificationListenerService}s. 25 * 26 * If you add a new Extractor be sure to add it to R.array.config_notificationSignalExtractors. 27 */ 28 public interface NotificationSignalExtractor { 29 30 /** One-time initialization. */ 31 public void initialize(Context context, NotificationUsageStats usageStats); 32 33 /** 34 * Called once per notification that is posted or updated. 35 * 36 * @return null if the work is done, or a future if there is more to do. The 37 * {@link RankingReconsideration} will be run on a worker thread, and if notifications 38 * are re-ordered by that execution, the {@link NotificationManagerService} may send order 39 * update events to the {@link android.service.notification.NotificationListenerService}s. 40 */ 41 public RankingReconsideration process(NotificationRecord notification); 42 43 /** 44 * Called whenever the {@link RankingConfig} changes. 45 * 46 * @param config information about which signals are important. 47 */ 48 void setConfig(RankingConfig config); 49 50 /** 51 * @param helper Helper to determine what components of notifications should be blocked due to 52 * DND. 53 */ 54 void setZenHelper(ZenModeHelper helper); 55 } 56
