/*
* Copyright 2012-2014 the original author or authors.
*
* 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 org.springframework.boot.autoconfigure.liquibase;
import javax.annotation.PostConstruct;
import javax.persistence.EntityManagerFactory;
import javax.sql.DataSource;
import liquibase.integration.spring.SpringLiquibase;
import liquibase.servicelocator.ServiceLocator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.AutoConfigureAfter;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.boot.autoconfigure.data.jpa.EntityManagerFactoryDependsOnPostProcessor;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder;
import org.springframework.boot.context.properties.EnableConfigurationProperties;
import org.springframework.boot.liquibase.CommonsLoggingLiquibaseLogger;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.core.io.DefaultResourceLoader;
import org.springframework.core.io.Resource;
import org.springframework.core.io.ResourceLoader;
import org.springframework.orm.jpa.AbstractEntityManagerFactoryBean;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.util.Assert;
/**
* {@link EnableAutoConfiguration Auto-configuration} for Liquibase.
*
* @author Marcel Overdijk
* @author Dave Syer
* @author Phillip Webb
* @since 1.1.0
*/
@Configuration
@ConditionalOnClass(SpringLiquibase.class)
@ConditionalOnBean(DataSource.class)
@ConditionalOnProperty(prefix = "liquibase", name = "enabled", matchIfMissing = true)
@AutoConfigureAfter(DataSourceAutoConfiguration.class)
public class LiquibaseAutoConfiguration {
@Configuration
@ConditionalOnMissingBean(SpringLiquibase.class)
@EnableConfigurationProperties(LiquibaseProperties.class)
@Import(LiquibaseJpaDependencyConfiguration.class)
public static class LiquibaseConfiguration {
@Autowired
private LiquibaseProperties properties = new LiquibaseProperties();
@Autowired
private ResourceLoader resourceLoader = new DefaultResourceLoader();
@Autowired
private DataSource dataSource;
@PostConstruct
public void checkChangelogExists() {
if (this.properties.isCheckChangeLogLocation()) {
Resource resource = this.resourceLoader.getResource(this.properties
.getChangeLog());
Assert.state(resource.exists(), "Cannot find changelog location: "
+ resource + " (please add changelog or check your Liquibase "
+ "configuration)");
}
ServiceLocator serviceLocator = ServiceLocator.getInstance();
serviceLocator.addPackageToScan(CommonsLoggingLiquibaseLogger.class
.getPackage().getName());
}
@Bean
public SpringLiquibase liquibase() {
SpringLiquibase liquibase = new SpringLiquibase();
liquibase.setChangeLog(this.properties.getChangeLog());
liquibase.setContexts(this.properties.getContexts());
liquibase.setDataSource(getDataSource());
liquibase.setDefaultSchema(this.properties.getDefaultSchema());
liquibase.setDropFirst(this.properties.isDropFirst());
liquibase.setShouldRun(this.properties.isEnabled());
return liquibase;
}
private DataSource getDataSource() {
if (this.properties.getUrl() == null) {
return this.dataSource;
}
return DataSourceBuilder.create().url(this.properties.getUrl())
.username(this.properties.getUser())
.password(this.properties.getPassword()).build();
}
}
/**
* Additional configuration to ensure that {@link EntityManagerFactory} beans
* depend-on the liquibase bean.
*/
@Configuration
@ConditionalOnClass(LocalContainerEntityManagerFactoryBean.class)
@ConditionalOnBean(AbstractEntityManagerFactoryBean.class)
protected static class LiquibaseJpaDependencyConfiguration extends
EntityManagerFactoryDependsOnPostProcessor {
public LiquibaseJpaDependencyConfiguration() {
super("liquibase");
}
}
}