From e7fdf58b3df5f68f5a7cf11ca3bafa1a3532b4e3 Mon Sep 17 00:00:00 2001 From: Zheng Wang <18031031@qq.com> Date: Sat, 22 Aug 2020 15:25:33 +0530 Subject: [PATCH] HBASE-24898 Use EnvironmentEdge.currentTime() instead of System.currentTimeMillis() in CurrentHourProvider Closes #2272 Co-authored-by: Viraj Jasani Signed-off-by: Nick Dimiduk Signed-off-by: Duo Zhang Signed-off-by: Viraj Jasani --- .../compactions/CurrentHourProvider.java | 4 +- .../compactions/TestCurrentHourProvider.java | 66 +++++++++++++++++++ 2 files changed, 69 insertions(+), 1 deletion(-) create mode 100644 hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/compactions/TestCurrentHourProvider.java diff --git a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/CurrentHourProvider.java b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/CurrentHourProvider.java index 37bb1f28f9f8..2d621cbed156 100644 --- a/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/CurrentHourProvider.java +++ b/hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/compactions/CurrentHourProvider.java @@ -21,6 +21,7 @@ import java.util.GregorianCalendar; import org.apache.hadoop.hbase.classification.InterfaceAudience; +import org.apache.hadoop.hbase.util.EnvironmentEdgeManager; @InterfaceAudience.Private public class CurrentHourProvider { @@ -38,6 +39,7 @@ private static final class Tick { private static Tick nextTick() { Calendar calendar = new GregorianCalendar(); + calendar.setTimeInMillis(EnvironmentEdgeManager.currentTime()); int currentHour = calendar.get(Calendar.HOUR_OF_DAY); moveToNextHour(calendar); return new Tick(currentHour, calendar.getTimeInMillis()); @@ -54,7 +56,7 @@ private static void moveToNextHour(Calendar calendar) { public static int getCurrentHour() { Tick tick = CurrentHourProvider.tick; - if(System.currentTimeMillis() < tick.expirationTimeInMillis) { + if (EnvironmentEdgeManager.currentTime() < tick.expirationTimeInMillis) { return tick.currentHour; } diff --git a/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/compactions/TestCurrentHourProvider.java b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/compactions/TestCurrentHourProvider.java new file mode 100644 index 000000000000..88a9e4ccec8b --- /dev/null +++ b/hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/compactions/TestCurrentHourProvider.java @@ -0,0 +1,66 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 org.apache.hadoop.hbase.regionserver.compactions; + +import static org.junit.Assert.assertEquals; + +import java.util.TimeZone; +import org.apache.hadoop.hbase.testclassification.RegionServerTests; +import org.apache.hadoop.hbase.testclassification.SmallTests; +import org.apache.hadoop.hbase.util.EnvironmentEdge; +import org.apache.hadoop.hbase.util.EnvironmentEdgeManager; +import org.junit.Test; +import org.junit.experimental.categories.Category; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +@Category({RegionServerTests.class, SmallTests.class}) +public class TestCurrentHourProvider { + private static final Logger LOG = LoggerFactory.getLogger(TestCurrentHourProvider.class); + + /** + * In timezone GMT+08:00, the unix time of 2020-08-20 11:52:41 is 1597895561000 + * and the unix time of 2020-08-20 15:04:00 is 1597907081000, + * by calculating the delta time to get expected time in current timezone, + * then we can get special hour no matter which timezone it runs. + */ + @Test + public void testWithEnvironmentEdge() { + // set a time represent hour 11 + long deltaFor11 = TimeZone.getDefault().getRawOffset() - 28800000; + final long timeFor11 = 1597895561000L - deltaFor11; + EnvironmentEdgeManager.injectEdge(new EnvironmentEdge() { + @Override + public long currentTime() { + return timeFor11; + } + }); + assertEquals(11, CurrentHourProvider.getCurrentHour()); + + // set a time represent hour 15 + long deltaFor15 = TimeZone.getDefault().getRawOffset() - 28800000; + final long timeFor15 = 1597907081000L - deltaFor15; + EnvironmentEdgeManager.injectEdge(new EnvironmentEdge() { + @Override + public long currentTime() { + return timeFor15; + } + }); + assertEquals(15, CurrentHourProvider.getCurrentHour()); + } +}