50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
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package indexer
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import (
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"context"
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"oc-discovery/daemons/node/common"
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pubsub "github.com/libp2p/go-libp2p-pubsub"
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"github.com/libp2p/go-libp2p/core/host"
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)
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// Index Record is the model for the specialized registry of node connected to Indexer
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type IndexerService struct {
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*common.LongLivedStreamRecordedService[PeerRecord]
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PS *pubsub.PubSub
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isStrictIndexer bool
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}
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// if a pubsub is given... indexer is also an active oc-node. If not... your a strict indexer
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func NewIndexerService(h host.Host, ps *pubsub.PubSub, maxNode int) *IndexerService {
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var err error
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ix := &IndexerService{
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LongLivedStreamRecordedService: common.NewStreamRecordedService[PeerRecord](h, maxNode, false),
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isStrictIndexer: ps == nil,
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}
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if ps == nil { // generate your fresh gossip for the flow of killed node... EVERYBODY should know !
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ps, err = pubsub.NewGossipSub(context.Background(), ix.Host)
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if err != nil {
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panic(err) // can't run your indexer without a propalgation pubsub, of state of node.
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}
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}
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ix.PS = ps
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// later TODO : all indexer laucnh a private replica of them self. DEV OPS
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if ix.isStrictIndexer {
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common.ConnectToIndexers(h, 0, 5, ix.Host.ID()) // TODO : make var to change how many indexers are allowed.
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ix.SubscribeToNodeActivity(ix.PS) // now we subscribe to a long run topic named node-activity, to relay message.
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ix.SubscribeToSearch(ix.PS)
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}
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ix.initNodeHandler() // then listen up on every protocol expected
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return ix
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}
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func (ix *IndexerService) Close() {
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for _, s := range ix.StreamRecords {
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for _, ss := range s {
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ss.Stream.Close()
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ss.HeartbeatStream.Stream.Close()
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}
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}
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}
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