org.springframework.boot.liquibase.LiquibaseServiceLocatorApplicationListener Maven / Gradle / Ivy
/*
* Copyright 2012-2019 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
*
* https://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.liquibase;
import liquibase.servicelocator.CustomResolverServiceLocator;
import liquibase.servicelocator.ServiceLocator;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.boot.context.event.ApplicationStartingEvent;
import org.springframework.context.ApplicationListener;
import org.springframework.util.ClassUtils;
/**
* {@link ApplicationListener} that replaces the liquibase {@link ServiceLocator} with a
* version that works with Spring Boot executable archives.
*
* @author Phillip Webb
* @author Dave Syer
* @since 1.0.0
*/
public class LiquibaseServiceLocatorApplicationListener implements ApplicationListener {
private static final Log logger = LogFactory.getLog(LiquibaseServiceLocatorApplicationListener.class);
@Override
public void onApplicationEvent(ApplicationStartingEvent event) {
if (ClassUtils.isPresent("liquibase.servicelocator.CustomResolverServiceLocator",
event.getSpringApplication().getClassLoader())) {
new LiquibasePresent().replaceServiceLocator();
}
}
/**
* Inner class to prevent class not found issues.
*/
private static class LiquibasePresent {
void replaceServiceLocator() {
CustomResolverServiceLocator customResolverServiceLocator = new CustomResolverServiceLocator(
new SpringPackageScanClassResolver(logger));
ServiceLocator.setInstance(customResolverServiceLocator);
}
}
}