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discovery+routing: add FetchLightningNode to ChannelGraphSource interface

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This commit is contained in:
Wilmer Paulino
2018-11-04 22:56:39 -08:00
parent d4b042dc19
commit 4f45e339f1
2 changed files with 30 additions and 0 deletions
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18
routing/router.go
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@@ -100,6 +100,11 @@ type ChannelGraphSource interface {
GetChannelByID(chanID lnwire.ShortChannelID) (*channeldb.ChannelEdgeInfo,
*channeldb.ChannelEdgePolicy, *channeldb.ChannelEdgePolicy, error)
// FetchLightningNode attempts to look up a target node by its identity
// public key. channeldb.ErrGraphNodeNotFound is returned if the node
// doesn't exist within the graph.
FetchLightningNode(Vertex) (*channeldb.LightningNode, error)
// ForEachNode is used to iterate over every node in the known graph.
ForEachNode(func(node *channeldb.LightningNode) error) error
@@ -2163,6 +2168,19 @@ func (r *ChannelRouter) GetChannelByID(chanID lnwire.ShortChannelID) (
return r.cfg.Graph.FetchChannelEdgesByID(chanID.ToUint64())
}
// FetchLightningNode attempts to look up a target node by its identity public
// key. channeldb.ErrGraphNodeNotFound is returned if the node doesn't exist
// within the graph.
//
// NOTE: This method is part of the ChannelGraphSource interface.
func (r *ChannelRouter) FetchLightningNode(node Vertex) (*channeldb.LightningNode, error) {
pubKey, err := btcec.ParsePubKey(node[:], btcec.S256())
if err != nil {
return nil, fmt.Errorf("unable to parse raw public key: %v", err)
}
return r.cfg.Graph.FetchLightningNode(pubKey)
}
// ForEachNode is used to iterate over every node in router topology.
//
// NOTE: This method is part of the ChannelGraphSource interface.