frostfs-node/pkg/innerring/processors/alphabet/processor.go

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package alphabet
import (
"errors"
"fmt"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
"github.com/nspcc-dev/neofs-node/pkg/morph/event"
"github.com/panjf2000/ants/v2"
"go.uber.org/zap"
)
type (
// Indexer is a callback interface for inner ring global state.
Indexer interface {
AlphabetIndex() int
}
// Contracts is an interface of the storage
// of the alphabet contract addresses.
Contracts interface {
// Get by index must return address of the
// alphabet contract by index of the glagolitic
// letter (e.g 0 for Az, 40 for Izhitsa).
//
// Must return false if index does not
// match to any alphabet contract.
GetByIndex(int) (util.Uint160, bool)
}
// Processor of events produced for alphabet contracts in sidechain.
Processor struct {
log *zap.Logger
pool *ants.Pool
alphabetContracts Contracts
netmapContract util.Uint160
morphClient *client.Client
irList Indexer
storageEmission uint64
}
// Params of the processor constructor.
Params struct {
Log *zap.Logger
PoolSize int
AlphabetContracts Contracts
NetmapContract util.Uint160
MorphClient *client.Client
IRList Indexer
StorageEmission uint64
}
)
// New creates neofs mainnet contract processor instance.
func New(p *Params) (*Processor, error) {
switch {
case p.Log == nil:
return nil, errors.New("ir/alphabet: logger is not set")
case p.MorphClient == nil:
return nil, errors.New("ir/alphabet: neo:morph client is not set")
case p.IRList == nil:
return nil, errors.New("ir/alphabet: global state is not set")
}
p.Log.Debug("alphabet worker pool", zap.Int("size", p.PoolSize))
pool, err := ants.NewPool(p.PoolSize, ants.WithNonblocking(true))
if err != nil {
return nil, fmt.Errorf("ir/neofs: can't create worker pool: %w", err)
}
return &Processor{
log: p.Log,
pool: pool,
alphabetContracts: p.AlphabetContracts,
netmapContract: p.NetmapContract,
morphClient: p.MorphClient,
irList: p.IRList,
storageEmission: p.StorageEmission,
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (np *Processor) ListenerParsers() []event.ParserInfo {
return nil
}
// ListenerHandlers for the 'event.Listener' event producer.
func (np *Processor) ListenerHandlers() []event.HandlerInfo {
return nil
}
// TimersHandlers for the 'Timers' event producer.
func (np *Processor) TimersHandlers() []event.HandlerInfo {
return nil
}