001package ball.spring.mysqld; 002/*- 003 * ########################################################################## 004 * Reusable Spring Components 005 * $Id: MysqldComponent.java 5285 2020-02-05 04:23:21Z ball $ 006 * $HeadURL: svn+ssh://svn.hcf.dev/var/spool/scm/repository.svn/ball-spring/trunk/src/main/java/ball/spring/mysqld/MysqldComponent.java $ 007 * %% 008 * Copyright (C) 2018 - 2020 Allen D. Ball 009 * %% 010 * Licensed under the Apache License, Version 2.0 (the "License"); 011 * you may not use this file except in compliance with the License. 012 * You may obtain a copy of the License at 013 * 014 * http://www.apache.org/licenses/LICENSE-2.0 015 * 016 * Unless required by applicable law or agreed to in writing, software 017 * distributed under the License is distributed on an "AS IS" BASIS, 018 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 019 * See the License for the specific language governing permissions and 020 * limitations under the License. 021 * ########################################################################## 022 */ 023import lombok.NoArgsConstructor; 024import lombok.ToString; 025import lombok.extern.log4j.Log4j2; 026import org.springframework.beans.factory.annotation.Autowired; 027import org.springframework.boot.autoconfigure.condition.ConditionalOnBean; 028import org.springframework.scheduling.annotation.Scheduled; 029import org.springframework.stereotype.Component; 030 031import static java.util.concurrent.TimeUnit.SECONDS; 032 033/** 034 * {@code mysqld} {@link Component}. 035 * 036 * {@injected.fields} 037 * 038 * @see MysqldConfiguration 039 * 040 * @author {@link.uri mailto:ball@hcf.dev Allen D. Ball} 041 * @version $Revision: 5285 $ 042 */ 043@Component 044@ConditionalOnBean(name = { "mysqld" }) 045@NoArgsConstructor @ToString @Log4j2 046public class MysqldComponent { 047 @Autowired private Process mysqld; 048 049 @Scheduled(fixedRate = 15 * 1000) 050 public void run() { 051 if (mysqld != null) { 052 if (mysqld.isAlive()) { 053 try { 054 mysqld.waitFor(15, SECONDS); 055 } catch (InterruptedException exception) { 056 } 057 } else { 058 throw new IllegalStateException("mysqld is not running"); 059 } 060 } 061 } 062}