package org.jrest4guice.transaction;
import java.lang.reflect.Method;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Transaction;
import org.jrest4guice.guice.GuiceContext;
import org.jrest4guice.persistence.hibernate.SessionFactoryHolder;
import org.jrest4guice.persistence.hibernate.SessionInfo;
import org.jrest4guice.transaction.annotations.Transactional;
import org.jrest4guice.transaction.annotations.TransactionalType;
/**
*
* @author <a href="mailto:zhangyouqun@gmail.com">cnoss (QQ:86895156)</a>
*
*/
public class HibernateLocalTransactionInterceptor implements MethodInterceptor {
private static Log log = LogFactory.getLog(HibernateLocalTransactionInterceptor.class);
@Override
public Object invoke(MethodInvocation methodInvocation) throws Throwable {
log.debug("[HibernateLocalTransactionInterceptor]进入＝》"+methodInvocation.getMethod().getName());
SessionFactoryHolder sessionFH = GuiceContext.getInstance().getBean(SessionFactoryHolder.class);
SessionInfo session = sessionFH.getSessionInfo();
Method method = methodInvocation.getMethod();
Transactional transactional = method.getAnnotation(Transactional.class);
if(transactional == null){
transactional = method.getDeclaringClass().getAnnotation(Transactional.class);
}
TransactionalType type = transactional.type();
final Transaction transaction = session.getSession().getTransaction();
if(type != TransactionalType.READOLNY){
session.setNeed2ProcessTransaction(true);
}
if(transaction.isActive()){
return methodInvocation.proceed();
}
//开始一个新的事务
if(type != TransactionalType.READOLNY){
transaction.begin();
}
Object result = null;
try {
//执行被拦截的业务方法
result = methodInvocation.proceed();
//提交事务
if(type != TransactionalType.READOLNY){
transaction.commit();
}
} catch (Exception e) {
//回滚当前事务
if(type != TransactionalType.READOLNY && transaction.isActive()){
transaction.rollback();
}
throw e;
}
log.debug("[HibernateLocalTransactionInterceptor]离开＝》"+methodInvocation.getMethod().getName());
//返回业务方法的执行结果
return result;
}
}