| // Copyright (C) 2019 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.multisite.kafka.consumer; |
| |
| import com.google.common.flogger.FluentLogger; |
| import com.google.gerrit.extensions.events.LifecycleListener; |
| import com.google.gerrit.extensions.registration.DynamicSet; |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| import java.util.concurrent.Executor; |
| |
| @Singleton |
| public class MultiSiteKafkaConsumerRunner implements LifecycleListener { |
| private static final FluentLogger logger = FluentLogger.forEnclosingClass(); |
| |
| private final DynamicSet<AbstractKafkaSubcriber> consumers; |
| private final Executor executor; |
| |
| @Inject |
| public MultiSiteKafkaConsumerRunner( |
| @ConsumerExecutor Executor executor, DynamicSet<AbstractKafkaSubcriber> consumers) { |
| this.consumers = consumers; |
| this.executor = executor; |
| } |
| |
| @Override |
| public void start() { |
| logger.atInfo().log("starting consumers"); |
| consumers.forEach(c -> executor.execute(c)); |
| } |
| |
| @Override |
| public void stop() { |
| logger.atInfo().log("shutting down consumers"); |
| this.consumers.forEach(c -> c.shutdown()); |
| } |
| } |