public void Intercept(IInvocation invocation)
{
string methodName = invocation.Method.Name;
Type typeofIDao = typeof(INpiDao <>);
Type entityType = invocation.Method.DeclaringType.GetInterface(typeofIDao.FullName).GetGenericArguments()[0];
// todo :对其单例化
ISqlCommandGenerator g = NpiServicesCollection.GetService <ISqlServerCommandGenerator>();
SqlCommandDescription d = g.Generate(invocation.Method, invocation.Arguments);
DebugLogger.Debug(d.ToString());
DapperParameters dp = new DapperParameters();
foreach (var p in d.Parameters)
{
dp[p.Key] = p.Value.Value;
}
object dbReturnedValue = null;
object handledValue = null;
DebugLogger.Debug("准备执行 Sql");
switch (d.Type)
{
case SqlCommandTypes.Insert:
case SqlCommandTypes.Update:
case SqlCommandTypes.Delete:
{
var executor = ServicesCollection.GetService <ISqlCommandExecutor>();
dbReturnedValue = executor.Execute(d.SqlCommand, dp, dbConnectionContext);
}
break;
case SqlCommandTypes.Select:
{
var querier = ServicesCollection.GetService <ISqlCommandQuerier>();
dbReturnedValue = querier.Select(entityType, d.SqlCommand, dp, dbConnectionContext);
}
break;
default:
break;
}
DebugLogger.Debug("Sql 执行完毕，开始处理结果集");
foreach (var handler in dbReturnValueHandlers)
{
if (!handler.CanHandle(invocation.Method, entityType))
{
continue;
}
handledValue = handler.Handle(invocation.Method, entityType, dbReturnedValue);
}
invocation.ReturnValue = handledValue;
DebugLogger.Debug("结果集处理完毕");
}
public override void Intercept(InterfaceInvocationInfo info)
{
this.AssertProviderIsValid();
Type typeOfIDao = typeof(INpiDao <>);
ISqlCommandGenerator g = NpiServicesCollection.GetService <ISqlServerCommandGenerator>();
SqlCommandDescription d = g.Generate(info.Method, info.Arguments);
this.EventBus.Publish(new SqlCommandDescriptionGeneratedEvent(this, d));
if (info.Method.ReturnType == typeof(void))
{
d.Mode = SqlCommandExecuteModes.Execute;
}
switch (d.Mode)
{
case SqlCommandExecuteModes.Execute:
int i = this.Executor.Execute(this.Provider.Provide(), d);
foreach (var handler in this.ExecuteResultHandlers)
{
if (!handler.CanHandle(info.Method))
{
continue;
}
info.ReturnValue = handler.Handle(info.Method, i);
}
break;
case SqlCommandExecuteModes.Query:
{
Type returnType = info.Method.ReturnType;
Type itemType;
if (TryGetIEnumerableItemType(returnType, out itemType))
{
returnType = itemType;
}
IEnumerable <object> list = this.Executor.Select(this.Provider.Provide(), d, returnType);
foreach (var handler in this.SelectResultHandlers)
{
if (!handler.CanHandle(info.Method, returnType))
{
continue;
}
info.ReturnValue = handler.Handle(info.Method, returnType, list);
}
}
break;
default:
break;
}
}
