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info.go
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/
info.go
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package lnode
import (
"encoding/hex"
"encoding/json"
"time"
"github.com/nknorg/nkn/v2/node"
"github.com/golang/protobuf/proto"
"github.com/nknorg/nkn/v2/pb"
"github.com/nknorg/nkn/v2/util/log"
nnetnode "github.com/nknorg/nnet/node"
"github.com/nknorg/nnet/overlay/chord"
)
type ChordRemoteNodeInfo struct {
localNode *LocalNode
remoteNode *nnetnode.RemoteNode
}
func newChordRemoteNodeInfo(localNode *LocalNode, remoteNode *nnetnode.RemoteNode) *ChordRemoteNodeInfo {
return &ChordRemoteNodeInfo{
localNode: localNode,
remoteNode: remoteNode,
}
}
type ChordInfo struct {
LocalNode *LocalNode `json:"localNode"`
Successors []*ChordRemoteNodeInfo `json:"successors"`
Predecessors []*ChordRemoteNodeInfo `json:"predecessors"`
FingerTable map[int][]*ChordRemoteNodeInfo `json:"fingerTable"`
}
func (localNode *LocalNode) GetNeighborInfo() []*node.RemoteNode {
return localNode.GetNeighbors(nil)
}
func (crn *ChordRemoteNodeInfo) MarshalJSON() ([]byte, error) {
var out map[string]interface{}
buf, err := json.Marshal(crn.remoteNode.Node.Node)
if err != nil {
return nil, err
}
err = json.Unmarshal(buf, &out)
if err != nil {
return nil, err
}
nodeData := &pb.NodeData{}
err = proto.Unmarshal(crn.remoteNode.Node.Node.Data, nodeData)
if err != nil {
return nil, err
}
delete(out, "data")
out["id"] = hex.EncodeToString(crn.remoteNode.Node.Node.Id)
out["isOutbound"] = crn.remoteNode.IsOutbound
out["roundTripTime"] = crn.remoteNode.GetRoundTripTime() / time.Millisecond
out["protocolVersion"] = nodeData.ProtocolVersion
out["connTime"] = 0
nbr := crn.localNode.GetNeighborByNNetNode(crn.remoteNode)
if nbr != nil {
out["connTime"] = time.Since(nbr.Node.StartTime) / time.Second
}
return json.Marshal(out)
}
func (localNode *LocalNode) GetChordInfo() node.IChordInfo {
c, ok := localNode.nnet.Network.(*chord.Chord)
if !ok {
log.Errorf("Overlay is not chord")
return nil
}
var successors, predecessors []*ChordRemoteNodeInfo
fingerTable := make(map[int][]*ChordRemoteNodeInfo)
for _, n := range c.Successors() {
successors = append(successors, newChordRemoteNodeInfo(localNode, n))
}
for _, n := range c.Predecessors() {
predecessors = append(predecessors, newChordRemoteNodeInfo(localNode, n))
}
for i, nodes := range c.FingerTable() {
if len(nodes) == 0 {
continue
}
for _, n := range nodes {
fingerTable[i] = append(fingerTable[i], newChordRemoteNodeInfo(localNode, n))
}
}
return &ChordInfo{
LocalNode: localNode,
Successors: successors,
Predecessors: predecessors,
FingerTable: fingerTable,
}
}