Fixed possible crash on creating the transfer (#28895)

Author: nshestakov

ydb/core/transfer/ut/functional/transfer_ut.cpp

@@ -1479,7 +1479,6 @@ Y_UNIT_TEST_SUITE(Transfer)
             )");
         testCase.CreateTopic(1);
 
-        testCase.CreateDirectory("/local/subdir");
         testCase.CreateTransfer(TStringBuilder() << "subdir/" << testCase.TransferName, Sprintf(R"(
                 $l = ($x) -> {
                     return [

ydb/core/tx/schemeshard/schemeshard__op_traits.h

@@ -180,6 +180,13 @@ struct TSchemeTxTraits<NKikimrSchemeOp::EOperationType::ESchemeOpCreateReplicati
     constexpr inline static bool CreateDirsFromName = true;
 };
 
+template <>
+struct TSchemeTxTraits<NKikimrSchemeOp::EOperationType::ESchemeOpCreateTransfer>
+    : public TSchemeTxTraitsFallback
+{
+    constexpr inline static bool CreateDirsFromName = true;
+};
+
 namespace NOperation {
 
 template <class TTraits>

ydb/core/tx/schemeshard/schemeshard__operation_create_replication.cpp

@@ -543,17 +543,29 @@ class TCreateReplication: public TSubOperation {
 
 } // anonymous
 
-using TTag = TSchemeTxTraits<NKikimrSchemeOp::EOperationType::ESchemeOpCreateReplication>;
+using TReplicationTag = TSchemeTxTraits<NKikimrSchemeOp::EOperationType::ESchemeOpCreateReplication>;
+using TTransferTag = TSchemeTxTraits<NKikimrSchemeOp::EOperationType::ESchemeOpCreateTransfer>;
 
 namespace NOperation {
 
 template <>
-std::optional<TString> GetTargetName<TTag>(TTag, const TTxTransaction& tx) {
+std::optional<TString> GetTargetName<TReplicationTag>(TReplicationTag, const TTxTransaction& tx) {
     return tx.GetReplication().GetName();
 }
 
 template <>
-bool SetName<TTag>(TTag, TTxTransaction& tx, const TString& name) {
+bool SetName<TReplicationTag>(TReplicationTag, TTxTransaction& tx, const TString& name) {
+    tx.MutableReplication()->SetName(name);
+    return true;
+}
+
+template <>
+std::optional<TString> GetTargetName<TTransferTag>(TTransferTag, const TTxTransaction& tx) {
+    return tx.GetReplication().GetName();
+}
+
+template <>
+bool SetName<TTransferTag>(TTransferTag, TTxTransaction& tx, const TString& name) {
     tx.MutableReplication()->SetName(name);
     return true;
 }