/// <summary>
/// 获取原生BulkCopy
/// </summary>
/// <param name="classBulkCopyName"></param>
/// <param name="classRowsCopiedName"></param>
/// <param name="oType"></param>
/// <returns></returns>
private long _GetBulkCopyAndWriteToServer(string classBulkCopyName, string classRowsCopiedName, object[] args)
{
_completedCount = 0;
var assembly = Factory.GetAssembly(this.DbType);
var NameSpace = Factory.GetNamespace(this.DbType + "");
var copyer = assembly.CreateInstance($"{NameSpace}.{classBulkCopyName}", true, BindingFlags.Default, null, new object[] { this._client.ConnectionString }, null, null);
var oType = copyer.GetType();
oType.GetProperty("DestinationTableName")?.SetValue(copyer, this.DestinationTableName, null);
oType.GetProperty("BulkCopyTimeout")?.SetValue(copyer, this.BulkTimeout, null);
//oType.GetProperty("BatchSize")?.SetValue(copyer, this.BatchSize, null);
oType.GetProperty("BatchSize")?.SetValue(copyer, 1, null);
oType.GetProperty("NotifyAfter")?.SetValue(copyer, this.NotifyAfter, null);
var ColumnMappings = oType.GetProperty("ColumnMappings");
_CopyMaps(ColumnMappings);
EventInfo evt = oType.GetEvent(classRowsCopiedName);
var delType = evt.EventHandlerType;
var pts = delType.GetDelegateParameterTypes();
MethodInfo doEventMethod = this.GetType().GetMethod(nameof(bc_RowsCopied), BindingFlags.NonPublic | BindingFlags.Instance);
MethodInfo concreteDoEventMethod = doEventMethod.MakeGenericMethod(pts[1]);
Delegate d = Delegate.CreateDelegate(delType, this, concreteDoEventMethod);
evt.AddEventHandler(copyer, d);
var wtServer = oType.GetMethod("WriteToServer", DelegateBuilder.GetParamsTypesFromParameters(args));
wtServer.Invoke(copyer, args);
return(_completedCount);
}
private static Delegate _GetEmitCreateFunc(Type type, object[] args, Type[] argTypes)
{
Delegate fun;
if (argTypes != null)
{
fun = DelegateBuilder.GetCreateDelegate(type, argTypes);
}
else
{
fun = DelegateBuilder.GetCreateDelegate(type, DelegateBuilder.GetParamsTypesFromParameters(args));
}
return(fun);
}
