/*- * ========================LICENSE_START================================= * O-RAN-SC * * Copyright (C) 2024: OpenInfra Foundation Europe * * 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. * ========================LICENSE_END=================================== */ package com.demo.producer.messages; import org.slf4j.Logger; import org.slf4j.LoggerFactory; public abstract class AbstractSimpleKafka { private static final Logger log = LoggerFactory.getLogger(AbstractSimpleKafka.class); public AbstractSimpleKafka(){ Runtime.getRuntime().addShutdownHook(new Thread() { @Override public void run() { shutdown(); } }); log.info(MessageHelper.getSimpleJSONObject("Created the Shutdown Hook").toJSONString()); } public abstract void shutdown(); public abstract void runAlways(String topicName, KafkaMessageHandler callback) throws Exception; public abstract void run(String topicName, int numberOfMessages, KafkaMessageHandler callback) throws Exception; }