org.stone.beecp.springboot.CombineDataSourceAspect Maven / Gradle / Ivy
/*
* Copyright Chris2018998
*
* 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.stone.beecp.springboot;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.springframework.core.annotation.Order;
import org.stone.beecp.springboot.annotation.DsId;
import static org.stone.tools.CommonUtil.isBlank;
/*
* combine DataSource Aspect
*
* @author Chris Liao
*/
@Aspect
@Order(1)
public class CombineDataSourceAspect {
private final String primaryDsId;
private final ThreadLocal dsThreadLocal;
CombineDataSourceAspect(String primaryDsId, ThreadLocal dsThreadLocal) {
this.primaryDsId = primaryDsId;
this.dsThreadLocal = dsThreadLocal;
}
//*********************************aspect methods begin **********************************************************//
@Pointcut("@annotation(org.stone.beecp.springboot.annotation.DsId)")
public void pointcut() {
//do nothing
}
@Around("pointcut()")
public Object setDataSourceId(ProceedingJoinPoint joinPoint) throws Throwable {
MethodSignature methodSignature = (MethodSignature) joinPoint.getSignature();
DsId annotation = methodSignature.getMethod().getAnnotation(DsId.class);
String dsId = annotation.value();
try {
if (isBlank(dsId)) dsId = primaryDsId;
dsThreadLocal.set(SpringBootDataSourceManager.getInstance().getSpringBootDataSource(dsId));
return joinPoint.proceed();
} finally {
if (!isBlank(dsId)) dsThreadLocal.remove();
}
}
//***************************************************************************************************************//
}