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

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package balance
import (
"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"
balanceEvent "github.com/nspcc-dev/neofs-node/pkg/morph/event/balance"
"github.com/panjf2000/ants/v2"
"github.com/pkg/errors"
"go.uber.org/zap"
)
type (
// ActiveState is a callback interface for inner ring global state
ActiveState interface {
IsActive() bool
}
// PrecisionConverter converts balance amount values.
PrecisionConverter interface {
ToFixed8(int64) int64
}
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// Processor of events produced by balance contract in morph chain.
Processor struct {
log *zap.Logger
pool *ants.Pool
neofsContract util.Uint160
balanceContract util.Uint160
mainnetClient *client.Client
activeState ActiveState
converter PrecisionConverter
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}
// Params of the processor constructor.
Params struct {
Log *zap.Logger
PoolSize int
NeoFSContract util.Uint160
BalanceContract util.Uint160
MainnetClient *client.Client
ActiveState ActiveState
Converter PrecisionConverter
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}
)
const (
lockNotification = "Lock"
)
// New creates balance contract processor instance.
func New(p *Params) (*Processor, error) {
switch {
case p.Log == nil:
return nil, errors.New("ir/balance: logger is not set")
case p.MainnetClient == nil:
return nil, errors.New("ir/balance: neo:mainnet client is not set")
case p.ActiveState == nil:
return nil, errors.New("ir/balance: global state is not set")
case p.Converter == nil:
return nil, errors.New("ir/balance: balance precision converter is not set")
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}
p.Log.Debug("balance 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/balance: can't create worker pool")
}
return &Processor{
log: p.Log,
pool: pool,
neofsContract: p.NeoFSContract,
balanceContract: p.BalanceContract,
mainnetClient: p.MainnetClient,
activeState: p.ActiveState,
converter: p.Converter,
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}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (bp *Processor) ListenerParsers() []event.ParserInfo {
var parsers []event.ParserInfo
// new lock event
lock := event.ParserInfo{}
lock.SetType(lockNotification)
lock.SetScriptHash(bp.balanceContract)
lock.SetParser(balanceEvent.ParseLock)
parsers = append(parsers, lock)
return parsers
}
// ListenerHandlers for the 'event.Listener' event producer.
func (bp *Processor) ListenerHandlers() []event.HandlerInfo {
var handlers []event.HandlerInfo
// lock handler
lock := event.HandlerInfo{}
lock.SetType(lockNotification)
lock.SetScriptHash(bp.balanceContract)
lock.SetHandler(bp.handleLock)
handlers = append(handlers, lock)
return handlers
}
// TimersHandlers for the 'Timers' event producer.
func (bp *Processor) TimersHandlers() []event.HandlerInfo {
return nil
}