| /** |
| * 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.usage; |
| |
| import android.app.usage.UsageStatsManager; |
| |
| /** |
| * A handy calendar object that knows nothing of Locale's or TimeZones. This simplifies |
| * interval book-keeping. It is *NOT* meant to be used as a user-facing calendar, as it has |
| * no concept of Locale or TimeZone. |
| */ |
| public class UnixCalendar { |
| private static final long DAY_IN_MILLIS = 24 * 60 * 60 * 1000; |
| private static final long WEEK_IN_MILLIS = 7 * DAY_IN_MILLIS; |
| private static final long MONTH_IN_MILLIS = 30 * DAY_IN_MILLIS; |
| private static final long YEAR_IN_MILLIS = 365 * DAY_IN_MILLIS; |
| private long mTime; |
| |
| public UnixCalendar(long time) { |
| mTime = time; |
| } |
| |
| public void truncateToDay() { |
| mTime -= mTime % DAY_IN_MILLIS; |
| } |
| |
| public void truncateToWeek() { |
| mTime -= mTime % WEEK_IN_MILLIS; |
| } |
| |
| public void truncateToMonth() { |
| mTime -= mTime % MONTH_IN_MILLIS; |
| } |
| |
| public void truncateToYear() { |
| mTime -= mTime % YEAR_IN_MILLIS; |
| } |
| |
| public void addDays(int val) { |
| mTime += val * DAY_IN_MILLIS; |
| } |
| |
| public void addWeeks(int val) { |
| mTime += val * WEEK_IN_MILLIS; |
| } |
| |
| public void addMonths(int val) { |
| mTime += val * MONTH_IN_MILLIS; |
| } |
| |
| public void addYears(int val) { |
| mTime += val * YEAR_IN_MILLIS; |
| } |
| |
| public void setTimeInMillis(long time) { |
| mTime = time; |
| } |
| |
| public long getTimeInMillis() { |
| return mTime; |
| } |
| |
| public static void truncateTo(UnixCalendar calendar, int intervalType) { |
| switch (intervalType) { |
| case UsageStatsManager.INTERVAL_YEARLY: |
| calendar.truncateToYear(); |
| break; |
| |
| case UsageStatsManager.INTERVAL_MONTHLY: |
| calendar.truncateToMonth(); |
| break; |
| |
| case UsageStatsManager.INTERVAL_WEEKLY: |
| calendar.truncateToWeek(); |
| break; |
| |
| case UsageStatsManager.INTERVAL_DAILY: |
| calendar.truncateToDay(); |
| break; |
| |
| default: |
| throw new UnsupportedOperationException("Can't truncate date to interval " + |
| intervalType); |
| } |
| } |
| } |