frostfs-node/cmd/neofs-node/reputation/intermediate/consumers.go

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package intermediate
import (
"encoding/hex"
"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
reputationcommon "github.com/nspcc-dev/neofs-node/pkg/services/reputation/common"
"github.com/nspcc-dev/neofs-node/pkg/services/reputation/eigentrust"
eigencalc "github.com/nspcc-dev/neofs-node/pkg/services/reputation/eigentrust/calculator"
consumerstorage "github.com/nspcc-dev/neofs-node/pkg/services/reputation/eigentrust/storage/consumers"
"github.com/nspcc-dev/neofs-node/pkg/util/logger"
"go.uber.org/zap"
)
var ErrIncorrectContextPanicMsg = "could not write intermediate trust: passed context incorrect"
// ConsumerStorageWriterProvider is implementation of reputation.WriterProvider
// interface that provides ConsumerTrustWriter writer.
type ConsumerStorageWriterProvider struct {
Log *logger.Logger
Storage *consumerstorage.Storage
}
// ConsumerTrustWriter is implementation of reputation.Writer interface
// that writes passed consumer's Trust values to Consumer storage. After writing
// that values can be used in eigenTrust algorithm's iterations.
type ConsumerTrustWriter struct {
log *logger.Logger
storage *consumerstorage.Storage
eiCtx eigencalc.Context
}
func (w *ConsumerTrustWriter) Write(t reputation.Trust) error {
w.log.Debug("writing received consumer's trusts",
zap.Uint64("epoch", w.eiCtx.Epoch()),
zap.Uint32("iteration", w.eiCtx.I()),
zap.String("trusting_peer", hex.EncodeToString(t.TrustingPeer().Bytes())),
zap.String("trusted_peer", hex.EncodeToString(t.Peer().Bytes())),
)
trust := eigentrust.IterationTrust{Trust: t}
trust.SetEpoch(w.eiCtx.Epoch())
trust.SetI(w.eiCtx.I())
w.storage.Put(trust)
return nil
}
func (w *ConsumerTrustWriter) Close() error {
return nil
}
func (s *ConsumerStorageWriterProvider) InitWriter(ctx reputationcommon.Context) (reputationcommon.Writer, error) {
eiCtx, ok := ctx.(eigencalc.Context)
if !ok {
panic(ErrIncorrectContextPanicMsg)
}
return &ConsumerTrustWriter{
log: s.Log,
storage: s.Storage,
eiCtx: eiCtx,
}, nil
}