frostfs-api-go-pogpp/pkg/object/address.go
Evgeniy Kulikov 20273357f6 [#147] Work around object package
- implement Stringer interface and Parse method for object.Address
- increase test coverage

closes #147

Signed-off-by: Evgeniy Kulikov <kim@nspcc.ru>
2020-10-15 11:05:37 +03:00

104 lines
2.5 KiB
Go

package object
import (
"strings"
"github.com/nspcc-dev/neofs-api-go/internal"
"github.com/nspcc-dev/neofs-api-go/pkg/container"
"github.com/nspcc-dev/neofs-api-go/v2/refs"
"github.com/pkg/errors"
)
// Address represents v2-compatible object address.
type Address refs.Address
// ErrBadAddress returns when string representation doesn't
// contains Container.ID and Object.ID separated by `/`.
const ErrBadAddress = internal.Error("address should contains container.ID and object.ID separated with `/`")
const (
addressParts = 2
addressSeparator = "/"
)
// NewAddressFromV2 converts v2 Address message to Address.
func NewAddressFromV2(aV2 *refs.Address) *Address {
return (*Address)(aV2)
}
// NewAddress creates and initializes blank Address.
//
// Works similar as NewAddressFromV2(new(Address)).
func NewAddress() *Address {
return NewAddressFromV2(new(refs.Address))
}
// ToV2 converts Address to v2 Address message.
func (a *Address) ToV2() *refs.Address {
return (*refs.Address)(a)
}
// AddressFromBytes restores Address from a binary representation.
func AddressFromBytes(data []byte) (*Address, error) {
addrV2 := new(refs.Address)
if err := addrV2.StableUnmarshal(data); err != nil {
return nil, errors.Wrap(err, "could not unmarshal object address")
}
return NewAddressFromV2(addrV2), nil
}
// GetContainerID returns container identifier.
func (a *Address) GetContainerID() *container.ID {
return container.NewIDFromV2(
(*refs.Address)(a).GetContainerID(),
)
}
// SetContainerID sets container identifier.
func (a *Address) SetContainerID(id *container.ID) {
(*refs.Address)(a).SetContainerID(id.ToV2())
}
// GetObjectID returns object identifier.
func (a *Address) GetObjectID() *ID {
return NewIDFromV2(
(*refs.Address)(a).GetObjectID(),
)
}
// SetObjectID sets object identifier.
func (a *Address) SetObjectID(id *ID) {
(*refs.Address)(a).SetObjectID(id.ToV2())
}
// Parse converts base58 string representation into Address.
func (a *Address) Parse(s string) error {
var (
err error
oid = NewID()
cid = container.NewID()
parts = strings.Split(s, addressSeparator)
)
if len(parts) != addressParts {
return ErrBadAddress
} else if err = cid.Parse(parts[0]); err != nil {
return err
} else if err = oid.Parse(parts[1]); err != nil {
return err
}
a.SetObjectID(oid)
a.SetContainerID(cid)
return nil
}
// String returns string representation of Object.Address.
func (a *Address) String() string {
return strings.Join([]string{
a.GetContainerID().String(),
a.GetObjectID().String(),
}, addressSeparator)
}