| // 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.google.gerrit.server.config; |
| |
| import com.google.common.collect.ArrayListMultimap; |
| import com.google.common.collect.Multimap; |
| import com.google.common.flogger.FluentLogger; |
| import com.google.gerrit.extensions.registration.DynamicSet; |
| import com.google.gerrit.server.config.ConfigUpdatedEvent.ConfigUpdateEntry; |
| import com.google.gerrit.server.config.ConfigUpdatedEvent.UpdateResult; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| |
| /** Issues a configuration reload from the GerritServerConfigProvider and notify all listeners. */ |
| @Singleton |
| public class GerritServerConfigReloader { |
| private static final FluentLogger logger = FluentLogger.forEnclosingClass(); |
| |
| private final GerritServerConfigProvider configProvider; |
| private final DynamicSet<GerritConfigListener> configListeners; |
| |
| @Inject |
| GerritServerConfigReloader( |
| GerritServerConfigProvider configProvider, DynamicSet<GerritConfigListener> configListeners) { |
| this.configProvider = configProvider; |
| this.configListeners = configListeners; |
| } |
| |
| /** |
| * Reloads the Gerrit Server Configuration from disk. Synchronized to ensure that one issued |
| * reload is fully completed before a new one starts. |
| */ |
| public Multimap<UpdateResult, ConfigUpdateEntry> reloadConfig() { |
| logger.atInfo().log("Starting server configuration reload"); |
| Multimap<UpdateResult, ConfigUpdateEntry> updates = |
| fireUpdatedConfigEvent(configProvider.updateConfig()); |
| logger.atInfo().log("Server configuration reload completed succesfully"); |
| return updates; |
| } |
| |
| public Multimap<UpdateResult, ConfigUpdateEntry> fireUpdatedConfigEvent( |
| ConfigUpdatedEvent event) { |
| Multimap<UpdateResult, ConfigUpdateEntry> updates = ArrayListMultimap.create(); |
| for (GerritConfigListener configListener : configListeners) { |
| updates.putAll(configListener.configUpdated(event)); |
| } |
| return updates; |
| } |
| } |