cn.schoolwow.workflow.flow.handler.TransactionTryCatchFinallyHandler Maven / Gradle / Ivy

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package cn.schoolwow.workflow.flow.handler;

import cn.schoolwow.quickdao.dao.DAO;
import cn.schoolwow.quickdao.dao.transaction.Transaction;
import cn.schoolwow.quickflow.domain.FlowContext;
import cn.schoolwow.quickflow.listener.TryCatchFinallyHandler;

public class TransactionTryCatchFinallyHandler implements TryCatchFinallyHandler {

    @Override
    public void handleTry(FlowContext flowContext) throws Exception {
        if(!flowContext.containKey("transaction")){
            flowContext.putData("开启事务流程", flowContext.getFlowName());

            DAO dao = (DAO) flowContext.checkData("dao");
            Transaction transaction = dao.startTransaction();
            flowContext.putTemporaryData("transaction", transaction);
        }
    }

    @Override
    public void handleException(FlowContext flowContext, Exception e) {
        e.printStackTrace();
        Transaction transaction = (Transaction) flowContext.checkData("transaction");
        transaction.rollback();
    }

    @Override
    public void handleFinally(FlowContext flowContext) {
        Transaction transaction = (Transaction) flowContext.checkData("transaction");
        if(null==flowContext.getFlowException()){
            transaction.commit();
        }

        String startTransactionFlowName = (String) flowContext.checkData("开启事务流程");
        if(startTransactionFlowName.equals(flowContext.getFlowName())){
            transaction.close();
            flowContext.removeData("transaction");
        }
    }

    @Override
    public String name() {
        return "数据库事务操作处理前后处理器";
    }
}