org.quickperf.spring.sql.QuickPerfProxyBeanPostProcessor Maven / Gradle / Ivy
/*
* 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.
*
* Copyright 2019-2020 the original author or authors.
*/
package org.quickperf.spring.sql;
import net.ttddyy.dsproxy.support.ProxyDataSource;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.quickperf.sql.config.QuickPerfSqlDataSourceBuilder;
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.beans.factory.config.BeanPostProcessor;
import org.springframework.util.ReflectionUtils;
import javax.sql.DataSource;
import java.lang.reflect.Method;
/*
From https://blog.arnoldgalovics.com/configuring-a-datasource-proxy-in-spring-boot/
*/
public class QuickPerfProxyBeanPostProcessor implements BeanPostProcessor {
@Override
public Object postProcessBeforeInitialization(Object bean, String beanName) {
return bean;
}
@Override
public Object postProcessAfterInitialization(Object bean, String beanName) {
if (bean instanceof DataSource && !isProxyDataSourceBean(bean)) {
final ProxyFactory factory = new ProxyFactory(bean);
factory.setProxyTargetClass(true);
factory.addAdvice(new ProxyDataSourceInterceptor((DataSource) bean));
return factory.getProxy();
}
return bean;
}
private boolean isProxyDataSourceBean(Object bean) {
return bean.toString().contains(ProxyDataSource.class.getName());
}
private static class ProxyDataSourceInterceptor implements MethodInterceptor {
private final DataSource datasourceProxy;
public ProxyDataSourceInterceptor(final DataSource dataSource) {
this.datasourceProxy =
QuickPerfSqlDataSourceBuilder.aDataSourceBuilder()
.buildProxy(dataSource);
}
@Override
public Object invoke(final MethodInvocation invocation) throws Throwable {
Method proxyMethod = ReflectionUtils.findMethod( this.datasourceProxy.getClass()
, invocation.getMethod().getName());
if (proxyMethod != null) {
return proxyMethod.invoke(this.datasourceProxy, invocation.getArguments());
}
return invocation.proceed();
}
}
}