[#108] object/head: Export remote header retrieval utility

Export remote head functionality in headsvc package. Refactor head service
to use RemoteHeader.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-10-21 12:18:36 +03:00 committed by Leonard Lyubich
parent 5ad0df7794
commit 5017ff0e4a
3 changed files with 65 additions and 35 deletions

View file

@ -5,7 +5,6 @@ import (
"sync"
"github.com/nspcc-dev/neofs-node/pkg/core/netmap"
"github.com/nspcc-dev/neofs-node/pkg/core/object"
"github.com/nspcc-dev/neofs-node/pkg/network"
"github.com/nspcc-dev/neofs-node/pkg/services/object/util"
"github.com/nspcc-dev/neofs-node/pkg/services/object_manager/placement"
@ -105,25 +104,24 @@ loop:
if err := h.workerPool.Submit(func() {
defer wg.Done()
var header interface {
head(context.Context, *Prm, func(*object.Object)) error
}
if network.IsLocalAddress(h.localAddrSrc, addr) {
header = &localHeader{
storage: h.localStore,
}
} else {
header = &remoteHeader{
keyStorage: h.keyStorage,
node: addr,
}
if err := h.localHeader.head(ctx, prm, h.w.write); err != nil {
// TODO: log error
}
if err := header.head(ctx, prm, h.w.write); err != nil {
return
}
head, err := h.remoteHeader.Head(ctx, &RemoteHeadPrm{
commonHeadPrm: prm,
node: addr,
})
if err != nil {
// TODO: log error
return
}
h.w.write(head)
}); err != nil {
wg.Done()
// TODO: log error

View file

@ -4,53 +4,85 @@ import (
"context"
"github.com/nspcc-dev/neofs-api-go/pkg/client"
objectSDK "github.com/nspcc-dev/neofs-api-go/pkg/object"
"github.com/nspcc-dev/neofs-node/pkg/core/object"
"github.com/nspcc-dev/neofs-node/pkg/network"
"github.com/nspcc-dev/neofs-node/pkg/services/object/util"
"github.com/pkg/errors"
)
type remoteHeader struct {
// RemoteHeader represents utility for getting
// the object header from a remote host.
type RemoteHeader struct {
keyStorage *util.KeyStorage
}
// RemoteHeadPrm groups remote header operation parameters.
type RemoteHeadPrm struct {
commonHeadPrm *Prm
node *network.Address
}
func (h *remoteHeader) head(ctx context.Context, prm *Prm, handler func(*object.Object)) error {
key, err := h.keyStorage.GetKey(prm.common.SessionToken())
if err != nil {
return errors.Wrapf(err, "(%T) could not receive private key", h)
// NewRemoteHeader creates, initializes and returns new RemoteHeader instance.
func NewRemoteHeader(keyStorage *util.KeyStorage) *RemoteHeader {
return &RemoteHeader{
keyStorage: keyStorage,
}
}
addr, err := h.node.IPAddrString()
// WithNodeAddress sets network address of the remote node.
func (p *RemoteHeadPrm) WithNodeAddress(v *network.Address) *RemoteHeadPrm {
if p != nil {
p.node = v
}
return p
}
// WithObjectAddress sets object address.
func (p *RemoteHeadPrm) WithObjectAddress(v *objectSDK.Address) *RemoteHeadPrm {
if p != nil {
p.commonHeadPrm = new(Prm).WithAddress(v)
}
return p
}
// Head requests object header from the remote node.
func (h *RemoteHeader) Head(ctx context.Context, prm *RemoteHeadPrm) (*object.Object, error) {
key, err := h.keyStorage.GetKey(prm.commonHeadPrm.common.SessionToken())
if err != nil {
return err
return nil, errors.Wrapf(err, "(%T) could not receive private key", h)
}
addr, err := prm.node.IPAddrString()
if err != nil {
return nil, err
}
c, err := client.New(key,
client.WithAddress(addr),
)
if err != nil {
return errors.Wrapf(err, "(%T) could not create SDK client %s", h, addr)
return nil, errors.Wrapf(err, "(%T) could not create SDK client %s", h, addr)
}
p := new(client.ObjectHeaderParams).
WithAddress(prm.addr)
WithAddress(prm.commonHeadPrm.addr)
if prm.short {
if prm.commonHeadPrm.short {
p = p.WithMainFields()
}
hdr, err := c.GetObjectHeader(ctx, p,
client.WithTTL(1), // FIXME: use constant
client.WithSession(prm.common.SessionToken()),
client.WithBearer(prm.common.BearerToken()),
client.WithSession(prm.commonHeadPrm.common.SessionToken()),
client.WithBearer(prm.commonHeadPrm.common.BearerToken()),
)
if err != nil {
return errors.Wrapf(err, "(%T) could not head object in %s", h, addr)
return nil, errors.Wrapf(err, "(%T) could not head object in %s", h, addr)
}
handler(object.NewFromSDK(hdr))
return nil
return object.NewFromSDK(hdr), nil
}

View file

@ -24,10 +24,6 @@ type Service struct {
type Option func(*cfg)
type cfg struct {
keyStorage *objutil.KeyStorage
localStore *localstore.Storage
cnrSrc container.Source
netMapSrc netmap.Source
@ -37,6 +33,10 @@ type cfg struct {
localAddrSrc network.LocalAddressSource
rightChildSearcher RelationSearcher
localHeader localHeader
remoteHeader RemoteHeader
}
var ErrNotFound = errors.New("object header not found")
@ -95,13 +95,13 @@ func (s *Service) Head(ctx context.Context, prm *Prm) (*Response, error) {
func WithKeyStorage(v *objutil.KeyStorage) Option {
return func(c *cfg) {
c.keyStorage = v
c.remoteHeader.keyStorage = v
}
}
func WithLocalStorage(v *localstore.Storage) Option {
return func(c *cfg) {
c.localStore = v
c.localHeader.storage = v
}
}