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[#28] object: Move storage group information

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In previous version of the format storage group information was stored in
completely in the dedicated header field. However, having a header field
instead of storing it in a payload is not justified, since it is used only
to check the presence in the object. Based on this, this commit defines a
message for marking the object as the custodian of information about the
storage group and changes the type of field StorageGroup to it. Information
about the storage group will be stored serialized in the payload of the
objects marked in this way

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-08-05 12:00:47 +03:00 committed by Stanislav Bogatyrev
parent 2ea912a910
commit 67ecea7507
2 changed files with 15 additions and 4 deletions
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9
object/types.proto
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@ -7,7 +7,6 @@ option csharp_namespace = "NeoFS.API.Object";
import "refs/types.proto";
import "service/verify.proto";
import "storagegroup/types.proto";
// Header groups the information about the NeoFS object.
message Header {
@ -88,8 +87,12 @@ message Header {
// HomomorphicHash carries homomorphic hash of the object payload.
bytes HomomorphicHash = 5;
// StorageGroup carries information about the NeoFS storage group.
storagegroup.StorageGroup StorageGroup = 6;
// StorageGroup groups meta information about a storage group.
message StorageGroup {
}
// StorageGroup marks an object containing information about a storage group.
StorageGroup storageGroup = 6;
// Split groups information about spawning the object through a payload splitting.
message Split {

10
proto-docs/object.md
View file

@ -34,6 +34,7 @@
- [Header.Extended.Attribute](#object.Header.Extended.Attribute)
- [Header.Extended.Integrity](#object.Header.Extended.Integrity)
- [Header.Extended.Split](#object.Header.Extended.Split)
- [Header.Extended.StorageGroup](#object.Header.Extended.StorageGroup)
- [Header.Extended.Tombstone](#object.Header.Extended.Tombstone)
- [Header.Main](#object.Header.Main)
- [Object](#object.Object)
@ -386,7 +387,7 @@ the NeoFS sub-systems.
| CreationEpoch | [uint64](#uint64) | | CreationEpoch carries number of NeoFS epoch on which the object was created. |
| tombstone | [Header.Extended.Tombstone](#object.Header.Extended.Tombstone) | | Tombstone marks the object to be deleted. |
| HomomorphicHash | [bytes](#bytes) | | HomomorphicHash carries homomorphic hash of the object payload. |
| StorageGroup | [storagegroup.StorageGroup](#storagegroup.StorageGroup) | | StorageGroup carries information about the NeoFS storage group. |
| storageGroup | [Header.Extended.StorageGroup](#object.Header.Extended.StorageGroup) | | StorageGroup marks an object containing information about a storage group. |
| split | [Header.Extended.Split](#object.Header.Extended.Split) | | Split carries the position of the object in the split hierarchy. |
@ -432,6 +433,13 @@ Split groups information about spawning the object through a payload splitting.
| Origin | [Header](#object.Header) | | Origin carries the header of the origin object. |
<a name="object.Header.Extended.StorageGroup"></a>
### Message Header.Extended.StorageGroup
StorageGroup groups meta information about a storage group.
<a name="object.Header.Extended.Tombstone"></a>
### Message Header.Extended.Tombstone