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[#647] pkg/morph/netmap/wrapper: GetCandidates method

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Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
This commit is contained in:
Pavel Karpy 2021-06-25 18:58:05 +03:00 committed by Alex Vanin
parent d664a00e94
commit a2b622d62e
1 changed files with 40 additions and 0 deletions
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40
pkg/morph/client/netmap/wrapper/netmap.go
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@ -38,6 +38,20 @@ func (w Wrapper) GetNetMapByEpoch(epoch uint64) (*netmap.Netmap, error) {
return unmarshalNetmap(vals.Peers())
}
// GetCandidates receives information list about candidates
// for the next epoch network map through the Netmap contract
// call, composes network map from them and returns it.
func (w Wrapper) GetCandidates() (*netmap.Netmap, error) {
args := client.GetNetMapCandidatesArgs{}
vals, err := w.client.Candidates(args)
if err != nil {
return nil, err
}
return unmarshalCandidates(vals.NetmapNodes())
}
func unmarshalNetmap(rawPeers [][]byte) (*netmap.Netmap, error) {
infos := make([]netmap.NodeInfo, 0, len(rawPeers))
@ -54,3 +68,29 @@ func unmarshalNetmap(rawPeers [][]byte) (*netmap.Netmap, error) {
return netmap.NewNetmap(nodes)
}
func unmarshalCandidates(rawCandidate []*client.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 client.Online:
nodeInfo.SetState(netmap.NodeStateOnline)
case client.Offline:
nodeInfo.SetState(netmap.NodeStateOffline)
default:
nodeInfo.SetState(0)
}
candidates = append(candidates, *nodeInfo)
}
nodes := netmap.NodesFromInfo(candidates)
return netmap.NewNetmap(nodes)
}