Line data    Source code

       1             : // Copyright (C) 2019 The Android Open Source Project
       2             : //
       3             : // Licensed under the Apache License, Version 2.0 (the "License");
       4             : // you may not use this file except in compliance with the License.
       5             : // You may obtain a copy of the License at
       6             : //
       7             : // http://www.apache.org/licenses/LICENSE-2.0
       8             : //
       9             : // Unless required by applicable law or agreed to in writing, software
      10             : // distributed under the License is distributed on an "AS IS" BASIS,
      11             : // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             : // See the License for the specific language governing permissions and
      13             : // limitations under the License.
      14             : 
      15             : package com.google.gerrit.server.index;
      16             : 
      17             : import java.util.Optional;
      18             : 
      19             : /** Per-thread singleton to signal if online reindexing is in progress. */
      20           0 : public class OnlineReindexMode {
      21          58 :   private static ThreadLocal<Boolean> isOnlineReindex = new ThreadLocal<>();
      22             : 
      23             :   public static boolean isActive() {
      24          57 :     return Optional.ofNullable(isOnlineReindex.get()).orElse(Boolean.FALSE);
      25             :   }
      26             : 
      27             :   public static void begin() {
      28           3 :     isOnlineReindex.set(Boolean.TRUE);
      29           3 :   }
      30             : 
      31             :   public static void end() {
      32           3 :     isOnlineReindex.set(Boolean.FALSE);
      33           3 :   }
      34             : }