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Produce GEFX graph for each run #135
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lalexgap
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,171 @@ | ||
| package utils | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/statechannels/go-nitro-testground/config" | ||
| "github.com/statechannels/go-nitro-testground/peer" | ||
| "github.com/statechannels/go-nitro/protocols" | ||
| "github.com/testground/sdk-go/sync" | ||
|
|
||
| "gonum.org/v1/gonum/graph/formats/gexf12" | ||
| ) | ||
|
|
||
| type objectiveStatus string | ||
|
|
||
| const ( | ||
| Starting objectiveStatus = "Starting" | ||
| Completed objectiveStatus = "Completed" | ||
| ) | ||
|
|
||
| // ObjectiveStatusInfo contains information about the status change of an objective | ||
| type ObjectiveStatusInfo struct { | ||
| Id protocols.ObjectiveId | ||
| Time time.Time | ||
| Participants []common.Address | ||
| ChannelId string | ||
| Status objectiveStatus | ||
| } | ||
|
|
||
| // GraphRecorder is a utility for recording the state of the network in GEXF file format. | ||
| type GraphRecorder struct { | ||
| me peer.PeerInfo | ||
| peers []peer.PeerInfo | ||
| config config.RunConfig | ||
| graph *gexf12.Graph | ||
| syncClient sync.Client | ||
| } | ||
|
|
||
| // Graph returns the GEXF graph struct | ||
| func (gr *GraphRecorder) Graph() *gexf12.Graph { | ||
| return gr.graph | ||
| } | ||
|
|
||
| // NewGraphRecorder creates a new GraphRecorder | ||
| func NewGraphRecorder(me peer.PeerInfo, peers []peer.PeerInfo, config config.RunConfig, syncClient sync.Client) *GraphRecorder { | ||
| var graph *gexf12.Graph | ||
| if peer.IsGraphRecorder(me.Seq, config) { | ||
| graph = &gexf12.Graph{} | ||
| graph.TimeFormat = "dateTime" | ||
| graph.Start = time.Now().Format( | ||
| "2006-01-02T15:04:05-0700") | ||
| graph.DefaultEdgeType = "directed" | ||
|
|
||
| // Set up attributes on the node and edges for channels and participants | ||
| graph.Attributes = []gexf12.Attributes{{ | ||
| Class: "node", | ||
| Attributes: []gexf12.Attribute{ | ||
| {ID: "address", Title: "address", Type: "string"}, {ID: "role", Title: "role", Type: "string"}}}, | ||
| { | ||
| Class: "edge", | ||
| Attributes: []gexf12.Attribute{ | ||
| {ID: "channelId", Title: "ChannelId", Type: "string"}, {ID: "channelType", Title: "ChannelType", Type: "string"}}}} | ||
|
|
||
| // Add nodes for each participant | ||
| for _, p := range append(peers, me) { | ||
| attValues := gexf12.AttValues{AttValues: []gexf12.AttValue{ | ||
| {For: "address", Value: p.Address.String()}, | ||
| {For: "role", Value: fmt.Sprintf("%d", p.Role)}}} | ||
|
|
||
| node := gexf12.Node{ID: p.Address.String(), | ||
| Label: p.Address.String()[0:6], | ||
| AttValues: &attValues, | ||
| Start: time.Now().Format( | ||
| "2006-01-02T15:04:05-0700")} | ||
|
|
||
| graph.Nodes.Nodes = append(graph.Nodes.Nodes, node) | ||
| } | ||
|
|
||
| } | ||
|
|
||
| gr := &GraphRecorder{ | ||
| me: me, | ||
| peers: peers, | ||
| config: config, | ||
| graph: graph, | ||
| syncClient: syncClient, | ||
| } | ||
| if peer.IsGraphRecorder(gr.me.Seq, gr.config) { | ||
| // Start listening for changes from other participants | ||
| go gr.listenForShared(context.Background()) | ||
| } | ||
|
|
||
| return gr | ||
| } | ||
|
|
||
| // objectiveStatusChangedTopic returns the topic to share objective status changes on | ||
| func (gr *GraphRecorder) objectiveStatusChangedTopic() *sync.Topic { | ||
| return sync.NewTopic("objective-status-change", ObjectiveStatusInfo{}) | ||
| } | ||
|
|
||
| // listenForShared listens for objective status changes from other participants | ||
| func (gr *GraphRecorder) listenForShared(ctx context.Context) { | ||
| if !peer.IsGraphRecorder(gr.me.Seq, gr.config) { | ||
| return | ||
| } | ||
| started := make(chan ObjectiveStatusInfo) | ||
|
|
||
| gr.syncClient.MustSubscribe(ctx, gr.objectiveStatusChangedTopic(), started) | ||
| for { | ||
| select { | ||
| case s := <-started: | ||
| gr.ObjectiveStatusUpdated(s) | ||
| case <-ctx.Done(): | ||
| return | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // ObjectiveStatusUpdated is called when an objective status changes | ||
| // It uses this information to build a graph of the network | ||
| func (gr *GraphRecorder) ObjectiveStatusUpdated(info ObjectiveStatusInfo) { | ||
| if !peer.IsGraphRecorder(gr.me.Seq, gr.config) { | ||
| gr.syncClient.MustPublish(context.Background(), gr.objectiveStatusChangedTopic(), info) | ||
| } else { | ||
|
|
||
| isCreateChannel := (strings.Contains(string(info.Id), "VirtualFund") || strings.Contains(string(info.Id), "DirectFund")) && info.Status == Starting | ||
| isCloseChannel := (strings.Contains(string(info.Id), "VirtualDefund") || strings.Contains(string(info.Id), "DirectDefund")) && info.Status == Completed | ||
|
|
||
| if isCreateChannel { | ||
| channelType := "ledger" | ||
| if strings.Contains(string(info.Id), "VirtualFund") { | ||
| channelType = "virtual" | ||
| } | ||
|
|
||
| attValues := gexf12.AttValues{ | ||
| AttValues: []gexf12.AttValue{ | ||
| {For: "channelId", Value: info.ChannelId}, | ||
| {For: "channelType", Value: channelType}}} | ||
|
|
||
| for i := 0; (i + 1) < len(info.Participants); i++ { | ||
|
|
||
| gr.graph.Edges.Edges = append(gr.graph.Edges.Edges, | ||
| gexf12.Edge{ | ||
| ID: fmt.Sprintf("%s_%s", info.ChannelId, info.Participants[i]), | ||
| Label: string(info.ChannelId)[0:6], | ||
| Source: info.Participants[i].String(), | ||
| Target: info.Participants[i+1].String(), | ||
| Start: info.Time.Format( | ||
| "2006-01-02T15:04:05-0700"), | ||
| AttValues: &attValues, | ||
| }, | ||
| ) | ||
| } | ||
|
|
||
| } | ||
| if isCloseChannel { | ||
| for i := 0; i < len(gr.graph.Edges.Edges); i++ { | ||
|
|
||
| if strings.Contains(gr.graph.Edges.Edges[i].ID, info.ChannelId) { | ||
|
|
||
| gr.graph.Edges.Edges[i].End = info.Time.Format( | ||
| "2006-01-02T15:04:05-0700") | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } |
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Why use empty participants list here?