frostfs-api-go/object/service.go
2020-03-31 10:05:26 +03:00

171 lines
5.2 KiB
Go

package object
import (
"github.com/nspcc-dev/neofs-api-go/hash"
"github.com/nspcc-dev/neofs-api-go/internal"
"github.com/nspcc-dev/neofs-api-go/refs"
"github.com/nspcc-dev/neofs-api-go/service"
"github.com/nspcc-dev/neofs-api-go/session"
)
type (
// ID is a type alias of object id.
ID = refs.ObjectID
// CID is a type alias of container id.
CID = refs.CID
// SGID is a type alias of storage group id.
SGID = refs.SGID
// OwnerID is a type alias of owner id.
OwnerID = refs.OwnerID
// Hash is a type alias of Homomorphic hash.
Hash = hash.Hash
// Token is a type alias of session token.
Token = session.Token
// Request defines object rpc requests.
// All object operations must have TTL, Epoch, Container ID and
// permission of usage previous network map.
Request interface {
service.MetaHeader
CID() CID
AllowPreviousNetMap() bool
}
)
const (
// starts enum for amount of bytes.
_ int64 = 1 << (10 * iota)
// UnitsKB defines amount of bytes in one kilobyte.
UnitsKB
// UnitsMB defines amount of bytes in one megabyte.
UnitsMB
// UnitsGB defines amount of bytes in one gigabyte.
UnitsGB
// UnitsTB defines amount of bytes in one terabyte.
UnitsTB
)
const (
// ErrNotFound is raised when object is not found in the system.
ErrNotFound = internal.Error("could not find object")
// ErrHeaderExpected is raised when first message in protobuf stream does not contain user header.
ErrHeaderExpected = internal.Error("expected header as a first message in stream")
// KeyStorageGroup is a key for a search object by storage group id.
KeyStorageGroup = "STORAGE_GROUP"
// KeyNoChildren is a key for searching object that have no children links.
KeyNoChildren = "LEAF"
// KeyParent is a key for searching object by id of parent object.
KeyParent = "PARENT"
// KeyHasParent is a key for searching object that have parent link.
KeyHasParent = "HAS_PAR"
// KeyTombstone is a key for searching object that have tombstone header.
KeyTombstone = "TOMBSTONE"
// KeyChild is a key for searching object by id of child link.
KeyChild = "CHILD"
// KeyPrev is a key for searching object by id of previous link.
KeyPrev = "PREV"
// KeyNext is a key for searching object by id of next link.
KeyNext = "NEXT"
// KeyID is a key for searching object by object id.
KeyID = "ID"
// KeyCID is a key for searching object by container id.
KeyCID = "CID"
// KeyOwnerID is a key for searching object by owner id.
KeyOwnerID = "OWNERID"
// KeyRootObject is a key for searching object that are zero-object or do
// not have any children.
KeyRootObject = "ROOT_OBJECT"
)
func checkIsNotFull(v interface{}) bool {
var obj *Object
switch t := v.(type) {
case *GetResponse:
obj = t.GetObject()
case *PutRequest:
if h := t.GetHeader(); h != nil {
obj = h.Object
}
default:
panic("unknown type")
}
return obj == nil || obj.SystemHeader.PayloadLength != uint64(len(obj.Payload)) && !obj.IsLinking()
}
// NotFull checks if protobuf stream provided whole object for get operation.
func (m *GetResponse) NotFull() bool { return checkIsNotFull(m) }
// NotFull checks if protobuf stream provided whole object for put operation.
func (m *PutRequest) NotFull() bool { return checkIsNotFull(m) }
// CID returns container id value from object put request.
func (m *PutRequest) CID() CID {
if header := m.GetHeader(); header != nil {
return header.Object.SystemHeader.CID
}
return refs.CID{}
}
// CID returns container id value from object get request.
func (m *GetRequest) CID() CID { return m.Address.CID }
// CID returns container id value from object head request.
func (m *HeadRequest) CID() CID { return m.Address.CID }
// CID returns container id value from object search request.
func (m *SearchRequest) CID() CID { return m.ContainerID }
// CID returns container id value from object delete request.
func (m *DeleteRequest) CID() CID { return m.Address.CID }
// CID returns container id value from object get range request.
func (m *GetRangeRequest) CID() CID { return m.Address.CID }
// CID returns container id value from object get range hash request.
func (m *GetRangeHashRequest) CID() CID { return m.Address.CID }
// AllowPreviousNetMap returns permission to use previous network map in object put request.
func (m *PutRequest) AllowPreviousNetMap() bool { return false }
// AllowPreviousNetMap returns permission to use previous network map in object get request.
func (m *GetRequest) AllowPreviousNetMap() bool { return true }
// AllowPreviousNetMap returns permission to use previous network map in object head request.
func (m *HeadRequest) AllowPreviousNetMap() bool { return true }
// AllowPreviousNetMap returns permission to use previous network map in object search request.
func (m *SearchRequest) AllowPreviousNetMap() bool { return true }
// AllowPreviousNetMap returns permission to use previous network map in object delete request.
func (m *DeleteRequest) AllowPreviousNetMap() bool { return false }
// AllowPreviousNetMap returns permission to use previous network map in object get range request.
func (m *GetRangeRequest) AllowPreviousNetMap() bool { return false }
// AllowPreviousNetMap returns permission to use previous network map in object get range hash request.
func (m *GetRangeHashRequest) AllowPreviousNetMap() bool { return false }