com.google.gerrit.server.config.GerritServerConfigReloader Maven / Gradle / Ivy
// 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.flogger.FluentLogger;
import com.google.gerrit.extensions.registration.DynamicSet;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import java.util.ArrayList;
import java.util.List;
/** 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 configListeners;
@Inject
GerritServerConfigReloader(
GerritServerConfigProvider configProvider, DynamicSet 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 List reloadConfig() {
logger.atInfo().log("Starting server configuration reload");
List updates = fireUpdatedConfigEvent(configProvider.updateConfig());
logger.atInfo().log("Server configuration reload completed succesfully");
return updates;
}
public List fireUpdatedConfigEvent(ConfigUpdatedEvent event) {
ArrayList result = new ArrayList<>();
for (GerritConfigListener configListener : configListeners) {
result.addAll(configListener.configUpdated(event));
}
return result;
}
}