NotificationSignalExtractor.java revision 470c1accf5a54f9844a779eafab74e63c09342b5
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 17package com.android.server.notification; 18 19import android.content.Context; 20 21import com.android.server.notification.NotificationManagerService.NotificationRecord; 22 23/** 24 * Extracts signals that will be useful to the {@link NotificationComparator} and caches them 25 * on the {@link NotificationManagerService.NotificationRecord} object. These annotations will 26 * not be passed on to {@link android.service.notification.NotificationListenerService}s. 27 */ 28public interface NotificationSignalExtractor { 29 30 /** One-time initialization. */ 31 public void initialize(Context context); 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