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[#1239] morph/client: Remove intermediate conversion in morph client

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Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
This commit is contained in:
Evgenii Stratonikov 2022-03-28 16:44:53 +03:00 committed by Alex Vanin
parent 6936195afa
commit 882236a03b
2 changed files with 68 additions and 59 deletions
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77
pkg/morph/client/netmap/netmap.go
View file

@ -22,21 +22,6 @@ const (
Offline
)
// PeerWithState groups information about peer
// and its state in network map.
type PeerWithState struct {
peer []byte
state State
}
func (ps PeerWithState) State() State {
return ps.state
}
func (ps PeerWithState) Peer() []byte {
return ps.peer
}
const (
nodeInfoFixedPrmNumber = 1
@ -72,12 +57,12 @@ func (c *Client) GetCandidates() (*netmap.Netmap, error) {
return nil, fmt.Errorf("could not perform test invocation (%s): %w", netMapCandidatesMethod, err)
}
candVals, err := peersWithStateFromStackItems(prms, netMapCandidatesMethod)
candVals, err := nodeInfosFromStackItems(prms, netMapCandidatesMethod)
if err != nil {
return nil, fmt.Errorf("could not parse contract response: %w", err)
}
return unmarshalCandidates(candVals)
return netmap.NewNetmap(netmap.NodesFromInfo(candVals))
}
// NetMap performs the test invoke of get network map
@ -95,31 +80,7 @@ func (c *Client) NetMap() ([][]byte, error) {
return peersFromStackItems(prms, netMapMethod)
}
func unmarshalCandidates(rawCandidate []*PeerWithState) (*netmap.Netmap, error) {
candidates := make([]netmap.NodeInfo, 0, len(rawCandidate))
for _, candidate := range rawCandidate {
nodeInfo := netmap.NewNodeInfo()
if err := nodeInfo.Unmarshal(candidate.Peer()); err != nil {
return nil, fmt.Errorf("can't unmarshal peer info: %w", err)
}
switch candidate.State() {
case Online:
nodeInfo.SetState(netmap.NodeStateOnline)
case Offline:
nodeInfo.SetState(netmap.NodeStateOffline)
default:
nodeInfo.SetState(0)
}
candidates = append(candidates, *nodeInfo)
}
return netmap.NewNetmap(netmap.NodesFromInfo(candidates))
}
func peersWithStateFromStackItems(stack []stackitem.Item, method string) ([]*PeerWithState, error) {
func nodeInfosFromStackItems(stack []stackitem.Item, method string) ([]netmap.NodeInfo, error) {
if ln := len(stack); ln != 1 {
return nil, fmt.Errorf("unexpected stack item count (%s): %d", method, ln)
}
@ -129,54 +90,52 @@ func peersWithStateFromStackItems(stack []stackitem.Item, method string) ([]*Pee
return nil, fmt.Errorf("could not get stack item array from stack item (%s): %w", method, err)
}
res := make([]*PeerWithState, 0, len(netmapNodes))
res := make([]netmap.NodeInfo, len(netmapNodes))
for i := range netmapNodes {
node, err := peerWithStateFromStackItem(netmapNodes[i])
err := stackItemToNodeInfo(netmapNodes[i], &res[i])
if err != nil {
return nil, fmt.Errorf("could not parse stack item (Peer #%d): %w", i, err)
}
res = append(res, node)
}
return res, nil
}
func peerWithStateFromStackItem(prm stackitem.Item) (*PeerWithState, error) {
func stackItemToNodeInfo(prm stackitem.Item, res *netmap.NodeInfo) error {
prms, err := client.ArrayFromStackItem(prm)
if err != nil {
return nil, fmt.Errorf("could not get stack item array (PeerWithState): %w", err)
return fmt.Errorf("could not get stack item array (PeerWithState): %w", err)
} else if ln := len(prms); ln != peerWithStateFixedPrmNumber {
return nil, fmt.Errorf(
return fmt.Errorf(
"unexpected stack item count (PeerWithState): expected %d, has %d",
peerWithStateFixedPrmNumber,
ln,
)
}
var res PeerWithState
// peer
if res.peer, err = peerInfoFromStackItem(prms[0]); err != nil {
return nil, fmt.Errorf("could not get bytes from 'node' field of PeerWithState: %w", err)
peer, err := peerInfoFromStackItem(prms[0])
if err != nil {
return fmt.Errorf("could not get bytes from 'node' field of PeerWithState: %w", err)
} else if err = res.Unmarshal(peer); err != nil {
return fmt.Errorf("can't unmarshal peer info: %w", err)
}
// state
state, err := client.IntFromStackItem(prms[1])
if err != nil {
return nil, fmt.Errorf("could not get int from 'state' field of PeerWithState: %w", err)
return fmt.Errorf("could not get int from 'state' field of PeerWithState: %w", err)
}
switch state {
case 1:
res.state = Online
res.SetState(netmap.NodeStateOnline)
case 2:
res.state = Offline
res.SetState(netmap.NodeStateOffline)
default:
res.state = Undefined
res.SetState(0)
}
return &res, nil
return nil
}
func peersFromStackItems(stack []stackitem.Item, method string) ([][]byte, error) {

50
pkg/morph/client/netmap/netmap_test.go Normal file
View file

@ -0,0 +1,50 @@
package netmap
import (
"math/big"
"math/rand"
"strconv"
"testing"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neofs-sdk-go/netmap"
"github.com/stretchr/testify/require"
)
func Test_stackItemsToNodeInfos(t *testing.T) {
expected := make([]netmap.NodeInfo, 4)
for i := range expected {
pub := make([]byte, 33)
rand.Read(pub)
expected[i].SetState(netmap.NodeState(i % 3))
expected[i].SetPublicKey(pub)
var attr netmap.NodeAttribute
attr.SetKey("key")
attr.SetValue(strconv.Itoa(i))
expected[i].SetAttributes(attr)
}
items := make([]stackitem.Item, 4)
for i := range items {
data, err := expected[i].Marshal()
require.NoError(t, err)
state := int64(expected[i].State())
if state != 0 { // In contract online=1, offline=2, in API it is the other way.
state = 3 - state
}
items[i] = stackitem.NewStruct([]stackitem.Item{
stackitem.NewStruct([]stackitem.Item{
stackitem.NewByteArray(data),
}),
stackitem.NewBigInteger(big.NewInt(state)),
})
}
actual, err := nodeInfosFromStackItems([]stackitem.Item{stackitem.NewArray(items)}, "")
require.NoError(t, err)
require.Equal(t, expected, actual)
}