private static DBSessionAttribute GetMethodTransactionAttribute(MethodInfo method)
{
DBSessionAttribute attr = method.GetCustomAttribute <DBSessionAttribute>();
return(attr);
}
private static DBSessionAttribute GetClassTransactionAttribute(Type type)
{
DBSessionAttribute attr = type.GetCustomAttribute <DBSessionAttribute>();
return(attr);
}
/// <summary>
/// 织入代理代码
/// </summary>
/// <param name="bean"></param>
private static string WavingProxyCode()
{
//命名空间预设
StringBuilder sb = new StringBuilder();
sb.Append(" using System;\n using LTCingFW;\n using System.Threading;\n");
sb.Append(" using log4net;\n");//log2
sb.Append(" namespace " + FWConfigs.proxyNameSpace + " { \n ");
foreach (FwInstanceBean bean in LTCingFWSet.Beans)
{
#region 代理类
String bean_name = bean.Name;
String type_full_name = bean.Type;
String[] sps = type_full_name.Split('.');
String LTCingFW_proxy_name = "_proxy_" + sps[sps.Length - 1];
sb.Append(String.Format(" public class {0} : {1} {{ \n", LTCingFW_proxy_name, type_full_name));
//3 sb.Append(String.Format(" private static readonly ILog logger = LogManager.GetLogger(typeof({0}));", LTCingFW_proxy_name));
#region 代理方法
Type type = bean.BelongAssembly.GetType(type_full_name);
MethodInfo[] mtds = type.GetMethods(BindingFlags.Public | BindingFlags.Instance);
foreach (MethodInfo mi in mtds)
{
#region 方法筛选
//去除掉队GetType、GetHashCode、Equals、ToString方法的重写
if (mi.Name == "GetType" || mi.Name == "GetHashCode" || mi.Name == "Equals" || mi.Name == "ToString")
{
continue;
}
//去除属性方法的重写
if (mi.Name.IndexOf("get_") > -1 || mi.Name.IndexOf("set_") > -1)
{
continue;
}
//获取切面
FwAopBean aspect = GetMethodAspect(type_full_name, mi);
//获取DBSessionAttribute
DBSessionAttribute dbSessionAttr = GetMethodTransactionAttribute(mi);
if (dbSessionAttr == null)
{
dbSessionAttr = GetClassTransactionAttribute(type);
}
#endregion
if (mi.Name == "NoticeDataChangedCallBack")
{
}
if (!mi.IsVirtual)
{
continue;
}
#region 设置方法名、参数、返回值还原
StringBuilder generics = new StringBuilder("");
if (mi.IsGenericMethod)
{
generics.Append("<");
foreach (Type item in mi.GetGenericArguments())
{
generics.Append(item.Name);
generics.Append(",");
}
generics.Remove(generics.Length - 1, 1);
generics.Append(">");
}
string method_head = String.Format("\n public override {0} {1} {2}( ", FwUtilFunc.GetRegularReturnType(mi.ReturnType), mi.Name, generics.ToString());
sb.Append(method_head);
#endregion
#region 方法内前置内容
ParameterInfo[] paramInfos = mi.GetParameters();
StringBuilder paramStr = new StringBuilder(" ");
StringBuilder objStr = new StringBuilder(" ");
for (int i = 0; i < paramInfos.Length; i++)
{
sb.Append(FwUtilFunc.GetRegularReturnType(paramInfos[i].ParameterType));
sb.Append(" para").Append(i).Append(" ,");
if (paramInfos[i].ParameterType.IsByRef)
{
paramStr.Append(" ref");
}
paramStr.Append(" para").Append(i).Append(" ,");
objStr.Append(" para").Append(i).Append(" ,");
}
paramStr.Remove(paramStr.Length - 1, 1);
sb.Remove(sb.Length - 1, 1);
sb.Append(")");
//if (mi.ReturnType.FullName == null)
//{
// sb.Append(" where T : OrmBaseModel");
//}
sb.Append("{\n");
sb.Append(" object[] paras = new object[]{ ").Append(objStr).Append("};\n");
sb.Append(" bool outerSession = false;\n");
sb.Append(" DBSession session = null;\n");
if (mi.ReturnType.FullName != "System.Void")
{
sb.Append(" object r = null; \n");
}
sb.Append(" try \n {\n");
sb.Append(" if (!LTCingFWSet.ThreadContextDic.ContainsKey(Thread.CurrentThread.ManagedThreadId)) {\n");
sb.Append(" LTCingFWSet.ThreadContextDic.Add(Thread.CurrentThread.ManagedThreadId, new LTCingFW.beans.ThreadContext());\n");
sb.Append(" LTCingFWSet.ThreadContextDic[Thread.CurrentThread.ManagedThreadId].MethodName = \"");
sb.Append(type_full_name).Append(".").Append(mi.Name).Append("\";");
sb.Append(" \n}\n");
sb.Append(" else if(LTCingFWSet.ThreadContextDic[Thread.CurrentThread.ManagedThreadId].DBSession != null)\n");
sb.Append(" {\n outerSession = true;\n}\n");
#endregion
#region 方法前部分
//进入过程ERROR置为空
sb.Append(" LTCingFWSet.ThreadContextDic[Thread.CurrentThread.ManagedThreadId].Error = null;\n");
//Transaction判定
if (dbSessionAttr != null)
{
sb.Append(" if(!outerSession){\n");
sb.Append(String.Format("session = DBSession.OpenSession(\"{0}\",{1});\n", dbSessionAttr.DbAlias, dbSessionAttr.OpenTransaction.ToString().ToLower()));
sb.Append("LTCingFWSet.ThreadContextDic[Thread.CurrentThread.ManagedThreadId].DBSession = session;\n");
sb.Append(" }\n");
}
#region 前AOP方法
if (aspect != null)
{
if (FwUtilFunc.StringIsNotEmpty(aspect.BeforeMethod))
{
//检测切入函数是否为公共和静态
int index = aspect.BeforeMethod.LastIndexOf('.');
String full_type_name = aspect.BeforeMethod.Substring(0, index);
String method_name = aspect.BeforeMethod.Substring(index + 1);
Type typeCls = Assembly.GetEntryAssembly().GetType(full_type_name);
MethodInfo mtdInfo = typeCls.GetMethod(method_name);
if (!mtdInfo.IsPublic || !mtdInfo.IsStatic)
{
throw new Exception("切入函数需为公共静态函数");
}
//加入切点函数
sb.Append(aspect.BeforeMethod).Append("(paras);\n");
}
}
#endregion
#endregion
#region 原方法，中间部分
if (mi.ReturnType.FullName != "System.Void")
{
sb.Append(" r = ").Append("base.").Append(mi.Name);
if (mi.ReturnType.FullName == null)
{
sb.Append("<T> ");
}
sb.Append("(").Append(paramStr).Append(");\n");
}
else
{
sb.Append("base.").Append(mi.Name);
sb.Append("(").Append(paramStr).Append(");\n");
}
#endregion
#region 方法后部分
sb.Append(" }\n catch (Exception ex) { \n ");
//sb.Append(" logger.Warn(\"Proxy_InnerException:\"+ex.Message+ex.StackTrace);\n");
sb.Append(" if(session != null && session.Transaction != null) \n{session.RollBack(); session.Close();\n}\n");
//sb.Append(" LTCingFWSet.ErrList.Add(ex); \n");//伴随框架的错误处理线程，一起注掉了
sb.Append(" LTCingFWSet.ThreadContextDic[Thread.CurrentThread.ManagedThreadId].Error = ex;\n");
sb.Append(" throw ex; \n");
sb.Append(" }\n ");
sb.Append(" finally \n { \n ");
sb.Append(" if(!outerSession)\n{\n");
sb.Append(" if(session != null && !session.IsClosed()) \n{ \n ");
sb.Append(" session.Close(); \n}\n");
sb.Append(" if(LTCingFWSet.ThreadContextDic.ContainsKey(Thread.CurrentThread.ManagedThreadId))\n{ \n");
sb.Append(" LTCingFWSet.ThreadContextDic[Thread.CurrentThread.ManagedThreadId].DBSession = null;\n}\n");
sb.Append(" }\n");
#region 后AOP方法
if (aspect != null)
{
if (FwUtilFunc.StringIsNotEmpty(aspect.AfterMethod))
{
//检测切点函数是否为公共和静态
int index = aspect.AfterMethod.LastIndexOf('.');
String full_type_name = aspect.AfterMethod.Substring(0, index);
String method_name = aspect.AfterMethod.Substring(index + 1);
Type typeCls = Assembly.GetEntryAssembly().GetType(full_type_name);
MethodInfo mtdInfo = typeCls.GetMethod(method_name);
if (!mtdInfo.IsPublic || !mtdInfo.IsStatic)
{
throw new Exception("切入函数需为公共静态函数");
}
//加入切点函数
sb.Append(aspect.AfterMethod).Append("(paras);\n");
}
if (FwUtilFunc.StringIsEmpty(aspect.BeforeMethod) && FwUtilFunc.StringIsEmpty(aspect.AfterMethod))
{
throw new Exception("切面需要一个前置切入函数或一个后置切入函数");
}
}
#endregion
sb.Append(" }\n");
//返回值
if (mi.ReturnType.FullName != "System.Void")
{
sb.Append(" return (").Append(FwUtilFunc.GetRegularReturnType(mi.ReturnType)).Append(") r; \n");
}
//结束
sb.Append("}\n");
#endregion
}
#endregion
sb.Append("}\n");
#endregion
//记录日志
logger.Info(String.Format("create Proxy for bean[{0}]", bean.Name));
bean.ProxyType = FWConfigs.proxyNameSpace + "." + LTCingFW_proxy_name;
}
//命名空间结束
sb.Append(" } \n");
return(sb.ToString());
}
