forked from TrueCloudLab/frostfs-node
147 lines
3.5 KiB
Go
147 lines
3.5 KiB
Go
package netmap
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import (
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"context"
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"errors"
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"fmt"
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"github.com/TrueCloudLab/frostfs-api-go/v2/netmap"
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"github.com/TrueCloudLab/frostfs-api-go/v2/refs"
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"github.com/TrueCloudLab/frostfs-node/pkg/core/version"
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netmapSDK "github.com/TrueCloudLab/frostfs-sdk-go/netmap"
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versionsdk "github.com/TrueCloudLab/frostfs-sdk-go/version"
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)
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type executorSvc struct {
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version refs.Version
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state NodeState
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netInfo NetworkInfo
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}
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// NodeState encapsulates information
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// about current node state.
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type NodeState interface {
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// Must return current node state
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// in NeoFS API v2 NodeInfo structure.
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LocalNodeInfo() (*netmap.NodeInfo, error)
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// ReadCurrentNetMap reads current local network map of the storage node
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// into the given parameter. Returns any error encountered which prevented
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// the network map to be read.
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ReadCurrentNetMap(*netmap.NetMap) error
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}
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// NetworkInfo encapsulates source of the
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// recent information about the NeoFS network.
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type NetworkInfo interface {
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// Must return recent network information in NeoFS API v2 NetworkInfo structure.
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//
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// If protocol version is <=2.9, MillisecondsPerBlock and network config should be unset.
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Dump(versionsdk.Version) (*netmapSDK.NetworkInfo, error)
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}
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func NewExecutionService(s NodeState, v versionsdk.Version, netInfo NetworkInfo) Server {
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if s == nil || netInfo == nil || !version.IsValid(v) {
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// this should never happen, otherwise it programmers bug
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panic("can't create netmap execution service")
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}
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res := &executorSvc{
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state: s,
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netInfo: netInfo,
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}
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v.WriteToV2(&res.version)
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return res
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}
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func (s *executorSvc) LocalNodeInfo(
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_ context.Context,
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req *netmap.LocalNodeInfoRequest) (*netmap.LocalNodeInfoResponse, error) {
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verV2 := req.GetMetaHeader().GetVersion()
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if verV2 == nil {
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return nil, errors.New("missing version")
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}
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var ver versionsdk.Version
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if err := ver.ReadFromV2(*verV2); err != nil {
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return nil, fmt.Errorf("can't read version: %w", err)
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}
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ni, err := s.state.LocalNodeInfo()
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if err != nil {
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return nil, err
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}
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if addrNum := ni.NumberOfAddresses(); addrNum > 0 && ver.Minor() <= 7 {
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ni2 := new(netmap.NodeInfo)
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ni2.SetPublicKey(ni.GetPublicKey())
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ni2.SetState(ni.GetState())
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ni2.SetAttributes(ni.GetAttributes())
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ni.IterateAddresses(func(s string) bool {
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ni2.SetAddresses(s)
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return true
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})
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ni = ni2
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}
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body := new(netmap.LocalNodeInfoResponseBody)
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body.SetVersion(&s.version)
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body.SetNodeInfo(ni)
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resp := new(netmap.LocalNodeInfoResponse)
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resp.SetBody(body)
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return resp, nil
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}
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func (s *executorSvc) NetworkInfo(
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_ context.Context,
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req *netmap.NetworkInfoRequest) (*netmap.NetworkInfoResponse, error) {
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verV2 := req.GetMetaHeader().GetVersion()
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if verV2 == nil {
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return nil, errors.New("missing protocol version in meta header")
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}
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var ver versionsdk.Version
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if err := ver.ReadFromV2(*verV2); err != nil {
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return nil, fmt.Errorf("can't read version: %w", err)
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}
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ni, err := s.netInfo.Dump(ver)
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if err != nil {
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return nil, err
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}
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var niV2 netmap.NetworkInfo
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ni.WriteToV2(&niV2)
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body := new(netmap.NetworkInfoResponseBody)
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body.SetNetworkInfo(&niV2)
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resp := new(netmap.NetworkInfoResponse)
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resp.SetBody(body)
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return resp, nil
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}
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func (s *executorSvc) Snapshot(_ context.Context, req *netmap.SnapshotRequest) (*netmap.SnapshotResponse, error) {
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var nm netmap.NetMap
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err := s.state.ReadCurrentNetMap(&nm)
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if err != nil {
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return nil, fmt.Errorf("read current local network map: %w", err)
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}
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body := new(netmap.SnapshotResponseBody)
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body.SetNetMap(&nm)
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resp := new(netmap.SnapshotResponse)
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resp.SetBody(body)
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return resp, nil
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}
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