/// <summary>
/// 拦截
/// </summary>
/// <param name="basicReturn">基本返回</param>
/// <param name="invocation">拦截参数</param>
/// <param name="attr">特性</param>
/// <param name="isExecProceeded">是否已执行</param>
protected override void Intercept(BasicReturnInfo basicReturn, IInvocation invocation, TransactionAttribute attr, out bool isExecProceeded)
{
isExecProceeded = true;
BasicReturnInfo returnInfo = new BasicReturnInfo();
object connId = null;
if (attr.ConnectionIdIndex == -1)
{
connId = invocation.GetArgumentValue(attr.ConnectionIdIndex);
}
IGetObject <IPersistenceConnection> getPerConn = AutofacTool.Resolve(invocation.TargetType) as IGetObject <IPersistenceConnection>;
if (getPerConn == null)
{
basicReturn.SetFailureMsg("未实现IGetObject<IPersistenceConnection>接口");
return;
}
IPersistenceConnection perConn = getPerConn.Get();
string connectionId = null;
// 当有连接ID传过来，判断是否存在该连接事务，存在则不开启新事务
if (connId != null)
{
string connIdStr = connId.ToString();
if (perConn.GetDbTransaction(connIdStr) != null)
{
invocation.Proceed();
return;
}
connectionId = connIdStr;
}
else
{
connectionId = perConn.NewConnectionId();
}
IDbTransaction dbTransaction = null;
try
{
dbTransaction = perConn.BeginTransaction(connectionId, attr);
invocation.SetArgumentValue(attr.ConnectionIdIndex, connectionId);
invocation.Proceed();
// 如果返回值为失败标识，也回滚
Type returnType = invocation.Method.ReturnType;
if (invocation.Method.ReturnType.IsReturnType())
{
BasicReturnInfo basicReturnInfo = invocation.ReturnValue as BasicReturnInfo;
if (basicReturnInfo.Failure())
{
dbTransaction.Rollback();
return;
}
}
dbTransaction.Commit();
}
catch (Exception ex)
{
if (dbTransaction != null)
{
dbTransaction.Rollback();
}
throw new Exception(ex.Message, ex);
}
finally
{
perConn.Release(connectionId);
}
}
