001package ball.spring.mysqld; 002/*- 003 * ########################################################################## 004 * Reusable Spring Components 005 * %% 006 * Copyright (C) 2018 - 2022 Allen D. Ball 007 * %% 008 * Licensed under the Apache License, Version 2.0 (the "License"); 009 * you may not use this file except in compliance with the License. 010 * You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, software 015 * distributed under the License is distributed on an "AS IS" BASIS, 016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 017 * See the License for the specific language governing permissions and 018 * limitations under the License. 019 * ########################################################################## 020 */ 021import lombok.NoArgsConstructor; 022import lombok.ToString; 023import lombok.extern.log4j.Log4j2; 024import org.springframework.beans.factory.annotation.Autowired; 025import org.springframework.boot.autoconfigure.condition.ConditionalOnBean; 026import org.springframework.scheduling.annotation.Scheduled; 027import org.springframework.stereotype.Component; 028 029import static java.util.concurrent.TimeUnit.SECONDS; 030 031/** 032 * {@code mysqld} {@link Component}. 033 * 034 * {@injected.fields} 035 * 036 * @see MysqldConfiguration 037 * 038 * @author {@link.uri mailto:ball@hcf.dev Allen D. Ball} 039 */ 040@Component 041@ConditionalOnBean(name = { "mysqld" }) 042@NoArgsConstructor @ToString @Log4j2 043public class MysqldComponent { 044 @Autowired private Process mysqld; 045 046 @Scheduled(fixedRate = 15 * 1000) 047 public void run() { 048 if (mysqld != null) { 049 if (mysqld.isAlive()) { 050 try { 051 mysqld.waitFor(15, SECONDS); 052 } catch (InterruptedException exception) { 053 } 054 } else { 055 throw new IllegalStateException("mysqld is not running"); 056 } 057 } 058 } 059}