/*
* Copyright 2012-2016 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.jta.narayana;
import javax.transaction.TransactionManager;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.core.Ordered;
/**
* {@link BeanFactoryPostProcessor} to automatically setup correct beans ordering.
*
* @author Gytis Trikleris
* @since 1.4.0
*/
public class NarayanaBeanFactoryPostProcessor
implements BeanFactoryPostProcessor, Ordered {
private static final String[] NO_BEANS = {};
private static final int ORDER = Ordered.LOWEST_PRECEDENCE;
@Override
public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory)
throws BeansException {
String[] transactionManagers = beanFactory
.getBeanNamesForType(TransactionManager.class, true, false);
String[] recoveryManagers = beanFactory
.getBeanNamesForType(NarayanaRecoveryManagerBean.class, true, false);
addBeanDependencies(beanFactory, transactionManagers, "javax.sql.DataSource");
addBeanDependencies(beanFactory, recoveryManagers, "javax.sql.DataSource");
addBeanDependencies(beanFactory, transactionManagers,
"javax.jms.ConnectionFactory");
addBeanDependencies(beanFactory, recoveryManagers, "javax.jms.ConnectionFactory");
}
private void addBeanDependencies(ConfigurableListableBeanFactory beanFactory,
String[] beanNames, String dependencyType) {
for (String beanName : beanNames) {
addBeanDependencies(beanFactory, beanName, dependencyType);
}
}
private void addBeanDependencies(ConfigurableListableBeanFactory beanFactory,
String beanName, String dependencyType) {
for (String dependentBeanName : getBeanNamesForType(beanFactory,
dependencyType)) {
beanFactory.registerDependentBean(beanName, dependentBeanName);
}
}
private String[] getBeanNamesForType(ConfigurableListableBeanFactory beanFactory,
String type) {
try {
return beanFactory.getBeanNamesForType(Class.forName(type), true, false);
}
catch (ClassNotFoundException ex) {
// Ignore
}
catch (NoClassDefFoundError ex) {
// Ignore
}
return NO_BEANS;
}
@Override
public int getOrder() {
return ORDER;
}
}