[#168] refs: Implement binary/JSON encoders/decoders on Address

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-11-13 15:58:53 +03:00 committed by Alex Vanin
parent 9325e22871
commit 4ce751f13c
7 changed files with 114 additions and 33 deletions

View file

@ -6,7 +6,6 @@ import (
"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.
@ -38,16 +37,6 @@ 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(
@ -102,3 +91,35 @@ func (a *Address) String() string {
a.GetObjectID().String(),
}, addressSeparator)
}
// Marshal marshals Address into a protobuf binary form.
//
// Buffer is allocated when the argument is empty.
// Otherwise, the first buffer is used.
func (a *Address) Marshal(b ...[]byte) ([]byte, error) {
var buf []byte
if len(b) > 0 {
buf = b[0]
}
return (*refs.Address)(a).
StableMarshal(buf)
}
// Unmarshal unmarshals protobuf binary representation of Address.
func (a *Address) Unmarshal(data []byte) error {
return (*refs.Address)(a).
Unmarshal(data)
}
// MarshalJSON encodes Address to protobuf JSON format.
func (a *Address) MarshalJSON() ([]byte, error) {
return (*refs.Address)(a).
MarshalJSON()
}
// UnmarshalJSON decodes Address from protobuf JSON format.
func (a *Address) UnmarshalJSON(data []byte) error {
return (*refs.Address)(a).
UnmarshalJSON(data)
}

View file

@ -60,3 +60,29 @@ func TestAddress_Parse(t *testing.T) {
require.EqualError(t, NewAddress().Parse(s), ErrBadID.Error())
})
}
func TestAddressEncoding(t *testing.T) {
a := NewAddress()
a.SetObjectID(randID(t))
a.SetContainerID(randCID(t))
t.Run("binary", func(t *testing.T) {
data, err := a.Marshal()
require.NoError(t, err)
a2 := NewAddress()
require.NoError(t, a2.Unmarshal(data))
require.Equal(t, a, a2)
})
t.Run("json", func(t *testing.T) {
data, err := a.MarshalJSON()
require.NoError(t, err)
a2 := NewAddress()
require.NoError(t, a2.UnmarshalJSON(data))
require.Equal(t, a, a2)
})
}

View file

@ -20,6 +20,13 @@ func randID(t *testing.T) *ID {
return id
}
func randCID(t *testing.T) *container.ID {
id := container.NewID()
id.SetSHA256(randSHA256Checksum(t))
return id
}
func randSHA256Checksum(t *testing.T) (cs [sha256.Size]byte) {
_, err := rand.Read(cs[:])
require.NoError(t, err)

26
v2/refs/json.go Normal file
View file

@ -0,0 +1,26 @@
package refs
import (
refs "github.com/nspcc-dev/neofs-api-go/v2/refs/grpc"
"google.golang.org/protobuf/encoding/protojson"
)
func (a *Address) MarshalJSON() ([]byte, error) {
return protojson.MarshalOptions{
EmitUnpopulated: true,
}.Marshal(
AddressToGRPCMessage(a),
)
}
func (a *Address) UnmarshalJSON(data []byte) error {
msg := new(refs.Address)
if err := protojson.Unmarshal(data, msg); err != nil {
return err
}
*a = *AddressFromGRPCMessage(msg)
return nil
}

20
v2/refs/json_test.go Normal file
View file

@ -0,0 +1,20 @@
package refs_test
import (
"testing"
"github.com/nspcc-dev/neofs-api-go/v2/refs"
"github.com/stretchr/testify/require"
)
func TestAddressJSON(t *testing.T) {
a := generateAddress([]byte{1}, []byte{2})
data, err := a.MarshalJSON()
require.NoError(t, err)
a2 := new(refs.Address)
require.NoError(t, a2.UnmarshalJSON(data))
require.Equal(t, a, a2)
}

View file

@ -142,11 +142,7 @@ func (a *Address) StableSize() (size int) {
return size
}
func (a *Address) StableUnmarshal(data []byte) error {
if a == nil {
return nil
}
func (a *Address) Unmarshal(data []byte) error {
addrGRPC := new(refs.Address)
if err := goproto.Unmarshal(data, addrGRPC); err != nil {
return err

View file

@ -69,16 +69,13 @@ func TestAddress_StableMarshal(t *testing.T) {
addressFrom := generateAddress(cid, oid)
addressTransport := new(grpc.Address)
t.Run("non empty", func(t *testing.T) {
wire, err := addressFrom.StableMarshal(nil)
require.NoError(t, err)
err = goproto.Unmarshal(wire, addressTransport)
require.NoError(t, err)
addressTo := new(refs.Address)
require.NoError(t, addressTo.Unmarshal(wire))
addressTo := refs.AddressFromGRPCMessage(addressTransport)
require.Equal(t, addressFrom, addressTo)
})
}
@ -161,15 +158,3 @@ func generateAddress(bCid, bOid []byte) *refs.Address {
return addr
}
func TestAddress_StableUnmarshal(t *testing.T) {
addr := generateAddress([]byte("container id"), []byte("object id"))
data, err := addr.StableMarshal(nil)
require.NoError(t, err)
addr2 := new(refs.Address)
require.NoError(t, addr2.StableUnmarshal(data))
require.Equal(t, addr, addr2)
}