forked from TrueCloudLab/frostfs-node
91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
package control
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import (
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"context"
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"github.com/nspcc-dev/neofs-node/pkg/services/control"
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netmapAPI "github.com/nspcc-dev/neofs-sdk-go/netmap"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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)
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// NetmapSnapshot reads network map snapshot from Netmap storage.
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func (s *Server) NetmapSnapshot(ctx context.Context, req *control.NetmapSnapshotRequest) (*control.NetmapSnapshotResponse, error) {
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// verify request
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if err := s.isValidRequest(req); err != nil {
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return nil, status.Error(codes.PermissionDenied, err.Error())
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}
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// get current epoch
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epoch, err := s.netMapSrc.Epoch()
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if err != nil {
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return nil, status.Error(codes.NotFound, err.Error())
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}
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apiNetMap, err := s.netMapSrc.GetNetMapByEpoch(epoch)
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if err != nil {
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return nil, status.Error(codes.NotFound, err.Error())
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}
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nm := new(control.Netmap)
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nm.SetEpoch(epoch)
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nm.SetNodes(nodesFromAPI(apiNetMap.Nodes()))
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// create and fill response
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resp := new(control.NetmapSnapshotResponse)
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body := new(control.NetmapSnapshotResponse_Body)
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resp.SetBody(body)
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body.SetNetmap(nm)
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// sign the response
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if err := SignMessage(s.key, resp); err != nil {
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return nil, status.Error(codes.Internal, err.Error())
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}
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return resp, nil
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}
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func nodesFromAPI(apiNodes []netmapAPI.NodeInfo) []*control.NodeInfo {
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nodes := make([]*control.NodeInfo, 0, len(apiNodes))
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for i := range apiNodes {
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node := new(control.NodeInfo)
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node.SetPublicKey(apiNodes[i].PublicKey())
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addrs := make([]string, 0, apiNodes[i].NumberOfNetworkEndpoints())
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netmapAPI.IterateNetworkEndpoints(apiNodes[i], func(s string) {
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addrs = append(addrs, s)
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})
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node.SetAddresses(addrs)
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node.SetAttributes(attributesFromAPI(apiNodes[i]))
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switch {
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default:
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node.SetState(control.NetmapStatus_STATUS_UNDEFINED)
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case apiNodes[i].IsOnline():
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node.SetState(control.NetmapStatus_ONLINE)
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case apiNodes[i].IsOffline():
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node.SetState(control.NetmapStatus_OFFLINE)
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}
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nodes = append(nodes, node)
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}
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return nodes
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}
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func attributesFromAPI(apiNode netmapAPI.NodeInfo) []*control.NodeInfo_Attribute {
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attrs := make([]*control.NodeInfo_Attribute, 0, apiNode.NumberOfAttributes())
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apiNode.IterateAttributes(func(key, value string) {
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a := new(control.NodeInfo_Attribute)
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a.SetKey(key)
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a.SetValue(value)
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attrs = append(attrs, a)
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})
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return attrs
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}
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