[#452] innerring: Add reputation processor

Signed-off-by: Alex Vanin <alexey@nspcc.ru>
This commit is contained in:
Alex Vanin 2021-03-31 18:38:01 +03:00 committed by Alex Vanin
parent 335b31206f
commit 09e4479d44
3 changed files with 174 additions and 0 deletions

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package reputation
import (
"encoding/hex"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
reputationEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/reputation"
"go.uber.org/zap"
)
func (rp *Processor) handlePutReputation(ev event.Event) {
put := ev.(reputationEvent.Put)
rp.log.Info("notification",
zap.String("type", "reputation put"),
zap.String("peer_id", hex.EncodeToString(put.PeerID().Bytes())))
// send event to the worker pool
err := rp.pool.Submit(func() {
rp.processPut(
put.Epoch(),
put.PeerID(),
put.Value(),
)
})
if err != nil {
// there system can be moved into controlled degradation stage
rp.log.Warn("reputation worker pool drained",
zap.Int("capacity", rp.pool.Cap()))
}
}

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package reputation
import (
"encoding/hex"
"github.com/nspcc-dev/neofs-node/pkg/morph/client/reputation/wrapper"
"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
"go.uber.org/zap"
)
func (rp *Processor) processPut(epoch uint64, id reputation.PeerID, value []byte) {
if !rp.alphabetState.IsAlphabet() {
rp.log.Info("non alphabet mode, ignore reputation put notification")
return
}
// todo: do sanity checks of value and epoch
args := wrapper.PutArgs{}
args.SetEpoch(epoch)
args.SetPeerID(id)
args.SetValue(value)
err := rp.reputationWrp.PutViaNotary(args)
if err != nil {
rp.log.Warn("can't send approval tx for reputation value",
zap.String("peer_id", hex.EncodeToString(id.Bytes())),
zap.String("error", err.Error()))
}
}

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package reputation
import (
"github.com/nspcc-dev/neo-go/pkg/util"
reputationWrapper "github.com/nspcc-dev/neofs-node/pkg/morph/client/reputation/wrapper"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
reputationEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/reputation"
"github.com/panjf2000/ants/v2"
"github.com/pkg/errors"
"go.uber.org/zap"
)
type (
// EpochState is a callback interface for inner ring global state.
EpochState interface {
EpochCounter() uint64
}
// AlphabetState is a callback interface for inner ring global state.
AlphabetState interface {
IsAlphabet() bool
}
// Processor of events produced by reputation contract.
Processor struct {
log *zap.Logger
pool *ants.Pool
reputationContract util.Uint160
epochState EpochState
alphabetState AlphabetState
reputationWrp *reputationWrapper.ClientWrapper
}
// Params of the processor constructor.
Params struct {
Log *zap.Logger
PoolSize int
ReputationContract util.Uint160
EpochState EpochState
AlphabetState AlphabetState
ReputationWrapper *reputationWrapper.ClientWrapper
}
)
const (
putReputationNotification = "reputationPut"
)
// New creates reputation contract processor instance.
func New(p *Params) (*Processor, error) {
switch {
case p.Log == nil:
return nil, errors.New("ir/reputation: logger is not set")
case p.EpochState == nil:
return nil, errors.New("ir/reputation: global state is not set")
case p.AlphabetState == nil:
return nil, errors.New("ir/reputation: global state is not set")
case p.ReputationWrapper == nil:
return nil, errors.New("ir/reputation: reputation contract wrapper is not set")
}
p.Log.Debug("reputation worker pool", zap.Int("size", p.PoolSize))
pool, err := ants.NewPool(p.PoolSize, ants.WithNonblocking(true))
if err != nil {
return nil, errors.Wrap(err, "ir/reputation: can't create worker pool")
}
return &Processor{
log: p.Log,
pool: pool,
reputationContract: p.ReputationContract,
epochState: p.EpochState,
alphabetState: p.AlphabetState,
reputationWrp: p.ReputationWrapper,
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (rp *Processor) ListenerParsers() []event.ParserInfo {
var parsers []event.ParserInfo
// put reputation event
put := event.ParserInfo{}
put.SetType(putReputationNotification)
put.SetScriptHash(rp.reputationContract)
put.SetParser(reputationEvent.ParsePut)
parsers = append(parsers, put)
return parsers
}
// ListenerHandlers for the 'event.Listener' event producer.
func (rp *Processor) ListenerHandlers() []event.HandlerInfo {
var handlers []event.HandlerInfo
// put reputation handler
put := event.HandlerInfo{}
put.SetType(putReputationNotification)
put.SetScriptHash(rp.reputationContract)
put.SetHandler(rp.handlePutReputation)
handlers = append(handlers, put)
return handlers
}
// TimersHandlers for the 'Timers' event producer.
func (rp *Processor) TimersHandlers() []event.HandlerInfo {
return nil
}