| // 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 com.googlesource.gerrit.plugins.deleteproject; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import java.time.Clock; |
| import java.time.Instant; |
| import java.time.ZoneId; |
| |
| /** |
| * This class consists of static methods that allow the user to get the time instant from the system |
| * clock. It also provides mechanisms to set the system clock and default zone clock for testing |
| * purposes only. |
| */ |
| public class TimeMachine { |
| |
| private static ZoneId PACIFIC_TIME_ZONE = ZoneId.of("America/Los_Angeles"); |
| private static Clock clock = Clock.system(PACIFIC_TIME_ZONE); |
| |
| /** |
| * Obtain the current instant on the time-line from the system clock using the system default time |
| * zone. |
| * |
| * @return the current instant using the system clock. |
| */ |
| public static Instant now() { |
| return Instant.now(clock); |
| } |
| |
| /** |
| * Set the clock to be the specific instant. |
| * |
| * @param instant the specific instant used to set the clock. |
| */ |
| @VisibleForTesting |
| public static void useFixedClockAt(Instant instant) { |
| clock = Clock.fixed(instant, PACIFIC_TIME_ZONE); |
| } |
| |
| /** Reset the clock to be the system PCT. */ |
| @VisibleForTesting |
| public static void useSystemPctZoneClock() { |
| clock = Clock.system(PACIFIC_TIME_ZONE); |
| } |
| } |