| /* |
| * Copyright (C) 2014 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 com.android.server.notification; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * Represents future work required to extract signals from notifications for ranking. |
| * |
| * {@hide} |
| */ |
| public abstract class RankingReconsideration implements Runnable { |
| private static final long IMMEDIATE = 0l; |
| |
| private static final int START = 0; |
| private static final int RUNNING = 1; |
| private static final int DONE = 2; |
| private static final int CANCELLED = 3; |
| |
| private int mState; |
| private long mDelay; |
| protected String mKey; |
| |
| public RankingReconsideration(String key) { |
| this(key, IMMEDIATE); |
| } |
| |
| public RankingReconsideration(String key, long delay) { |
| mDelay = delay; |
| mKey = key; |
| mState = START; |
| } |
| |
| public String getKey() { |
| return mKey; |
| } |
| |
| public void run() { |
| if (mState == START) { |
| mState = RUNNING; |
| |
| work(); |
| |
| mState = DONE; |
| synchronized (this) { |
| notifyAll(); |
| } |
| } |
| } |
| |
| public long getDelay(TimeUnit unit) { |
| return unit.convert(mDelay, TimeUnit.MILLISECONDS); |
| } |
| |
| public boolean cancel(boolean mayInterruptIfRunning) { |
| if (mState == START) { // can't cancel if running or done |
| mState = CANCELLED; |
| return true; |
| } |
| return false; |
| } |
| |
| public boolean isCancelled() { |
| return mState == CANCELLED; |
| } |
| |
| public boolean isDone() { |
| return mState == DONE; |
| } |
| |
| /** |
| * Analyse the notification. This will be called on a worker thread. To |
| * avoid concurrency issues, do not use held references to modify the |
| * {@link NotificationRecord}. |
| */ |
| public abstract void work(); |
| |
| /** |
| * Apply any computed changes to the notification record. This method will be |
| * called on the main service thread, synchronized on he mNotificationList. |
| * @param record The locked record to be updated. |
| */ |
| public abstract void applyChangesLocked(NotificationRecord record); |
| } |