001/* 002 * Copyright 2012-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.boot.autoconfigure.liquibase; 018 019import java.lang.reflect.Method; 020 021import javax.sql.DataSource; 022 023import liquibase.exception.LiquibaseException; 024import liquibase.integration.spring.SpringLiquibase; 025 026import org.springframework.beans.factory.DisposableBean; 027import org.springframework.util.ReflectionUtils; 028 029/** 030 * A custom {@link SpringLiquibase} extension that closes the underlying 031 * {@link DataSource} once the database has been migrated. 032 * 033 * @author Andy Wilkinson 034 * @since 2.0.6 035 */ 036public class DataSourceClosingSpringLiquibase extends SpringLiquibase 037 implements DisposableBean { 038 039 private volatile boolean closeDataSourceOnceMigrated = true; 040 041 public void setCloseDataSourceOnceMigrated(boolean closeDataSourceOnceMigrated) { 042 this.closeDataSourceOnceMigrated = closeDataSourceOnceMigrated; 043 } 044 045 @Override 046 public void afterPropertiesSet() throws LiquibaseException { 047 super.afterPropertiesSet(); 048 if (this.closeDataSourceOnceMigrated) { 049 closeDataSource(); 050 } 051 } 052 053 private void closeDataSource() { 054 Class<?> dataSourceClass = getDataSource().getClass(); 055 Method closeMethod = ReflectionUtils.findMethod(dataSourceClass, "close"); 056 if (closeMethod != null) { 057 ReflectionUtils.invokeMethod(closeMethod, getDataSource()); 058 } 059 } 060 061 @Override 062 public void destroy() throws Exception { 063 if (!this.closeDataSourceOnceMigrated) { 064 closeDataSource(); 065 } 066 } 067 068}