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[#770] pkg/morph: Rename all parsers and handlers structs/interfaces 

Prepare all listening structures for notary events:
rename(add prefix/suffix 'notification') all
notification specific handlers/parsers.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
support/v0.27
Pavel Karpy 2021-08-12 18:24:17 +03:00 committed by Pavel Karpy
parent c87bc70536
commit d252aa4a3e
16 changed files with 174 additions and 175 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
cmd/neofs-node/config.go
View File

@ -140,7 +140,7 @@ type cfgAccounting struct {
type cfgContainer struct {
scriptHash neogoutil.Uint160
parsers map[event.Type]event.Parser
parsers map[event.Type]event.NotificationParser
subscribers map[event.Type][]event.Handler
workerPool util.WorkerPool // pool for asynchronous handlers
}
@ -149,7 +149,7 @@ type cfgNetmap struct {
scriptHash neogoutil.Uint160
wrapper *nmwrapper.Wrapper
parsers map[event.Type]event.Parser
parsers map[event.Type]event.NotificationParser
subscribers map[event.Type][]event.Handler
workerPool util.WorkerPool // pool for asynchronous handlers

4
cmd/neofs-node/container.go
View File

@ -175,11 +175,11 @@ func addContainerAsyncNotificationHandler(c *cfg, sTyp string, h event.Handler)
)
}
func setContainerNotificationParser(c *cfg, sTyp string, p event.Parser) {
func setContainerNotificationParser(c *cfg, sTyp string, p event.NotificationParser) {
typ := event.TypeFromString(sTyp)
if c.cfgContainer.parsers == nil {
c.cfgContainer.parsers = make(map[event.Type]event.Parser, 1)
c.cfgContainer.parsers = make(map[event.Type]event.NotificationParser, 1)
}
c.cfgContainer.parsers[typ] = p

10
cmd/neofs-node/morph.go
View File

@ -139,10 +139,10 @@ func listenMorphNotifications(c *cfg) {
})
}
func registerNotificationHandlers(scHash util.Uint160, lis event.Listener, parsers map[event.Type]event.Parser,
func registerNotificationHandlers(scHash util.Uint160, lis event.Listener, parsers map[event.Type]event.NotificationParser,
subs map[event.Type][]event.Handler) {
for typ, handlers := range subs {
pi := event.ParserInfo{}
pi := event.NotificationParserInfo{}
pi.SetType(typ)
pi.SetScriptHash(scHash)
@ -153,15 +153,15 @@ func registerNotificationHandlers(scHash util.Uint160, lis event.Listener, parse
pi.SetParser(p)
lis.SetParser(pi)
lis.SetNotificationParser(pi)
for _, h := range handlers {
hi := event.HandlerInfo{}
hi := event.NotificationHandlerInfo{}
hi.SetType(typ)
hi.SetScriptHash(scHash)
hi.SetHandler(h)
lis.RegisterHandler(hi)
lis.RegisterNotificationHandler(hi)
}
}
}

4
cmd/neofs-node/netmap.go
View File

@ -166,11 +166,11 @@ func addNetmapNotificationHandler(c *cfg, sTyp string, h event.Handler) {
c.cfgNetmap.subscribers[typ] = append(c.cfgNetmap.subscribers[typ], h)
}
func setNetmapNotificationParser(c *cfg, sTyp string, p event.Parser) {
func setNetmapNotificationParser(c *cfg, sTyp string, p event.NotificationParser) {
typ := event.TypeFromString(sTyp)
if c.cfgNetmap.parsers == nil {
c.cfgNetmap.parsers = make(map[event.Type]event.Parser, 1)
c.cfgNetmap.parsers = make(map[event.Type]event.NotificationParser, 1)
}
c.cfgNetmap.parsers[typ] = p

14
pkg/innerring/bindings.go
View File

@ -8,21 +8,21 @@ type (
// ContractProcessor interface defines functions for binding event producers
// such as event.Listener and Timers with contract processor.
ContractProcessor interface {
ListenerParsers() []event.ParserInfo
ListenerHandlers() []event.HandlerInfo
TimersHandlers() []event.HandlerInfo
ListenerNotificationParsers() []event.NotificationParserInfo
ListenerNotificationHandlers() []event.NotificationHandlerInfo
TimersHandlers() []event.NotificationHandlerInfo
}
)
func connectListenerWithProcessor(l event.Listener, p ContractProcessor) {
// register parsers
for _, parser := range p.ListenerParsers() {
l.SetParser(parser)
for _, parser := range p.ListenerNotificationParsers() {
l.SetNotificationParser(parser)
}
// register handlers
for _, handler := range p.ListenerHandlers() {
l.RegisterHandler(handler)
for _, handler := range p.ListenerNotificationHandlers() {
l.RegisterNotificationHandler(handler)
}
}

10
pkg/innerring/processors/alphabet/processor.go
View File

@ -82,17 +82,17 @@ func New(p *Params) (*Processor, error) {
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (np *Processor) ListenerParsers() []event.ParserInfo {
// ListenerNotificationParsers for the 'event.Listener' event producer.
func (np *Processor) ListenerNotificationParsers() []event.NotificationParserInfo {
return nil
}
// ListenerHandlers for the 'event.Listener' event producer.
func (np *Processor) ListenerHandlers() []event.HandlerInfo {
// ListenerNotificationHandlers for the 'event.Listener' event producer.
func (np *Processor) ListenerNotificationHandlers() []event.NotificationHandlerInfo {
return nil
}
// TimersHandlers for the 'Timers' event producer.
func (np *Processor) TimersHandlers() []event.HandlerInfo {
func (np *Processor) TimersHandlers() []event.NotificationHandlerInfo {
return nil
}

10
pkg/innerring/processors/audit/processor.go
View File

@ -116,18 +116,18 @@ func New(p *Params) (*Processor, error) {
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (ap *Processor) ListenerParsers() []event.ParserInfo {
// ListenerNotificationParsers for the 'event.Listener' event producer.
func (ap *Processor) ListenerNotificationParsers() []event.NotificationParserInfo {
return nil
}
// ListenerHandlers for the 'event.Listener' event producer.
func (ap *Processor) ListenerHandlers() []event.HandlerInfo {
// ListenerNotificationHandlers for the 'event.Listener' event producer.
func (ap *Processor) ListenerNotificationHandlers() []event.NotificationHandlerInfo {
return nil
}
// TimersHandlers for the 'Timers' event producer.
func (ap *Processor) TimersHandlers() []event.HandlerInfo {
func (ap *Processor) TimersHandlers() []event.NotificationHandlerInfo {
return nil
}

18
pkg/innerring/processors/balance/processor.go
View File

@ -76,12 +76,12 @@ func New(p *Params) (*Processor, error) {
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (bp *Processor) ListenerParsers() []event.ParserInfo {
var parsers []event.ParserInfo
// ListenerNotificationParsers for the 'event.Listener' event producer.
func (bp *Processor) ListenerNotificationParsers() []event.NotificationParserInfo {
var parsers []event.NotificationParserInfo
// new lock event
lock := event.ParserInfo{}
lock := event.NotificationParserInfo{}
lock.SetType(lockNotification)
lock.SetScriptHash(bp.balanceContract)
lock.SetParser(balanceEvent.ParseLock)
@ -90,12 +90,12 @@ func (bp *Processor) ListenerParsers() []event.ParserInfo {
return parsers
}
// ListenerHandlers for the 'event.Listener' event producer.
func (bp *Processor) ListenerHandlers() []event.HandlerInfo {
var handlers []event.HandlerInfo
// ListenerNotificationHandlers for the 'event.Listener' event producer.
func (bp *Processor) ListenerNotificationHandlers() []event.NotificationHandlerInfo {
var handlers []event.NotificationHandlerInfo
// lock handler
lock := event.HandlerInfo{}
lock := event.NotificationHandlerInfo{}
lock.SetType(lockNotification)
lock.SetScriptHash(bp.balanceContract)
lock.SetHandler(bp.handleLock)
@ -105,6 +105,6 @@ func (bp *Processor) ListenerHandlers() []event.HandlerInfo {
}
// TimersHandlers for the 'Timers' event producer.
func (bp *Processor) TimersHandlers() []event.HandlerInfo {
func (bp *Processor) TimersHandlers() []event.NotificationHandlerInfo {
return nil
}

18
pkg/innerring/processors/container/processor.go
View File

@ -92,12 +92,12 @@ func New(p *Params) (*Processor, error) {
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (cp *Processor) ListenerParsers() []event.ParserInfo {
// ListenerNotificationParsers for the 'event.Listener' event producer.
func (cp *Processor) ListenerNotificationParsers() []event.NotificationParserInfo {
var (
parsers = make([]event.ParserInfo, 0, 3)
parsers = make([]event.NotificationParserInfo, 0, 3)
p event.ParserInfo
p event.NotificationParserInfo
)
p.SetScriptHash(cp.containerContract)
@ -120,12 +120,12 @@ func (cp *Processor) ListenerParsers() []event.ParserInfo {
return parsers
}
// ListenerHandlers for the 'event.Listener' event producer.
func (cp *Processor) ListenerHandlers() []event.HandlerInfo {
// ListenerNotificationHandlers for the 'event.Listener' event producer.
func (cp *Processor) ListenerNotificationHandlers() []event.NotificationHandlerInfo {
var (
handlers = make([]event.HandlerInfo, 0, 3)
handlers = make([]event.NotificationHandlerInfo, 0, 3)
h event.HandlerInfo
h event.NotificationHandlerInfo
)
h.SetScriptHash(cp.containerContract)
@ -149,6 +149,6 @@ func (cp *Processor) ListenerHandlers() []event.HandlerInfo {
}
// TimersHandlers for the 'Timers' event producer.
func (cp *Processor) TimersHandlers() []event.HandlerInfo {
func (cp *Processor) TimersHandlers() []event.NotificationHandlerInfo {
return nil
}

18
pkg/innerring/processors/governance/processor.go
View File

@ -128,25 +128,25 @@ func New(p *Params) (*Processor, error) {
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (gp *Processor) ListenerParsers() []event.ParserInfo {
var pi event.ParserInfo
// ListenerNotificationParsers for the 'event.Listener' event producer.
func (gp *Processor) ListenerNotificationParsers() []event.NotificationParserInfo {
var pi event.NotificationParserInfo
pi.SetScriptHash(gp.designate)
pi.SetType(event.TypeFromString(native.DesignationEventName))
pi.SetParser(rolemanagement.ParseDesignate)
return []event.ParserInfo{pi}
return []event.NotificationParserInfo{pi}
}
// ListenerHandlers for the 'event.Listener' event producer.
func (gp *Processor) ListenerHandlers() []event.HandlerInfo {
var hi event.HandlerInfo
// ListenerNotificationHandlers for the 'event.Listener' event producer.
func (gp *Processor) ListenerNotificationHandlers() []event.NotificationHandlerInfo {
var hi event.NotificationHandlerInfo
hi.SetScriptHash(gp.designate)
hi.SetType(event.TypeFromString(native.DesignationEventName))
hi.SetHandler(gp.HandleAlphabetSync)
return []event.HandlerInfo{hi}
return []event.NotificationHandlerInfo{hi}
}
// TimersHandlers for the 'Timers' event producer.
func (gp *Processor) TimersHandlers() []event.HandlerInfo {
func (gp *Processor) TimersHandlers() []event.NotificationHandlerInfo {
return nil
}

18
pkg/innerring/processors/neofs/processor.go
View File

@ -129,12 +129,12 @@ func New(p *Params) (*Processor, error) {
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (np *Processor) ListenerParsers() []event.ParserInfo {
// ListenerNotificationParsers for the 'event.Listener' event producer.
func (np *Processor) ListenerNotificationParsers() []event.NotificationParserInfo {
var (
parsers = make([]event.ParserInfo, 0, 6)
parsers = make([]event.NotificationParserInfo, 0, 6)
p event.ParserInfo
p event.NotificationParserInfo
)
p.SetScriptHash(np.neofsContract)
@ -172,12 +172,12 @@ func (np *Processor) ListenerParsers() []event.ParserInfo {
return parsers
}
// ListenerHandlers for the 'event.Listener' event producer.
func (np *Processor) ListenerHandlers() []event.HandlerInfo {
// ListenerNotificationHandlers for the 'event.Listener' event producer.
func (np *Processor) ListenerNotificationHandlers() []event.NotificationHandlerInfo {
var (
handlers = make([]event.HandlerInfo, 0, 6)
handlers = make([]event.NotificationHandlerInfo, 0, 6)
h event.HandlerInfo
h event.NotificationHandlerInfo
)
h.SetScriptHash(np.neofsContract)
@ -216,6 +216,6 @@ func (np *Processor) ListenerHandlers() []event.HandlerInfo {
}
// TimersHandlers for the 'Timers' event producer.
func (np *Processor) TimersHandlers() []event.HandlerInfo {
func (np *Processor) TimersHandlers() []event.NotificationHandlerInfo {
return nil
}

26
pkg/innerring/processors/netmap/processor.go
View File

@ -146,26 +146,26 @@ func New(p *Params) (*Processor, error) {
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (np *Processor) ListenerParsers() []event.ParserInfo {
var parsers []event.ParserInfo
// ListenerNotificationParsers for the 'event.Listener' event producer.
func (np *Processor) ListenerNotificationParsers() []event.NotificationParserInfo {
var parsers []event.NotificationParserInfo
// new epoch event
newEpoch := event.ParserInfo{}
newEpoch := event.NotificationParserInfo{}
newEpoch.SetType(newEpochNotification)
newEpoch.SetScriptHash(np.netmapContract)
newEpoch.SetParser(netmapEvent.ParseNewEpoch)
parsers = append(parsers, newEpoch)
// new peer event
addPeer := event.ParserInfo{}
addPeer := event.NotificationParserInfo{}
addPeer.SetType(addPeerNotification)
addPeer.SetScriptHash(np.netmapContract)
addPeer.SetParser(netmapEvent.ParseAddPeer)
parsers = append(parsers, addPeer)
// update peer event
updatePeer := event.ParserInfo{}
updatePeer := event.NotificationParserInfo{}
updatePeer.SetType(updatePeerStateNotification)
updatePeer.SetScriptHash(np.netmapContract)
updatePeer.SetParser(netmapEvent.ParseUpdatePeer)
@ -174,26 +174,26 @@ func (np *Processor) ListenerParsers() []event.ParserInfo {
return parsers
}
// ListenerHandlers for the 'event.Listener' event producer.
func (np *Processor) ListenerHandlers() []event.HandlerInfo {
var handlers []event.HandlerInfo
// ListenerNotificationHandlers for the 'event.Listener' event producer.
func (np *Processor) ListenerNotificationHandlers() []event.NotificationHandlerInfo {
var handlers []event.NotificationHandlerInfo
// new epoch handler
newEpoch := event.HandlerInfo{}
newEpoch := event.NotificationHandlerInfo{}
newEpoch.SetType(newEpochNotification)
newEpoch.SetScriptHash(np.netmapContract)
newEpoch.SetHandler(np.handleNewEpoch)
handlers = append(handlers, newEpoch)
// new peer handler
addPeer := event.HandlerInfo{}
addPeer := event.NotificationHandlerInfo{}
addPeer.SetType(addPeerNotification)
addPeer.SetScriptHash(np.netmapContract)
addPeer.SetHandler(np.handleAddPeer)
handlers = append(handlers, addPeer)
// update peer handler
updatePeer := event.HandlerInfo{}
updatePeer := event.NotificationHandlerInfo{}
updatePeer.SetType(updatePeerStateNotification)
updatePeer.SetScriptHash(np.netmapContract)
updatePeer.SetHandler(np.handleUpdateState)
@ -203,6 +203,6 @@ func (np *Processor) ListenerHandlers() []event.HandlerInfo {
}
// TimersHandlers for the 'Timers' event producer.
func (np *Processor) TimersHandlers() []event.HandlerInfo {
func (np *Processor) TimersHandlers() []event.NotificationHandlerInfo {
return nil
}

18
pkg/innerring/processors/reputation/processor.go
View File

@ -88,12 +88,12 @@ func New(p *Params) (*Processor, error) {
}, nil
}
// ListenerParsers for the 'event.Listener' event producer.
func (rp *Processor) ListenerParsers() []event.ParserInfo {
var parsers []event.ParserInfo
// ListenerNotificationParsers for the 'event.Listener' event producer.
func (rp *Processor) ListenerNotificationParsers() []event.NotificationParserInfo {
var parsers []event.NotificationParserInfo
// put reputation event
put := event.ParserInfo{}
put := event.NotificationParserInfo{}
put.SetType(putReputationNotification)
put.SetScriptHash(rp.reputationContract)
put.SetParser(reputationEvent.ParsePut)
@ -102,12 +102,12 @@ func (rp *Processor) ListenerParsers() []event.ParserInfo {
return parsers
}
// ListenerHandlers for the 'event.Listener' event producer.
func (rp *Processor) ListenerHandlers() []event.HandlerInfo {
var handlers []event.HandlerInfo
// ListenerNotificationHandlers for the 'event.Listener' event producer.
func (rp *Processor) ListenerNotificationHandlers() []event.NotificationHandlerInfo {
var handlers []event.NotificationHandlerInfo
// put reputation handler
put := event.HandlerInfo{}
put := event.NotificationHandlerInfo{}
put.SetType(putReputationNotification)
put.SetScriptHash(rp.reputationContract)
put.SetHandler(rp.handlePutReputation)
@ -117,6 +117,6 @@ func (rp *Processor) ListenerHandlers() []event.HandlerInfo {
}
// TimersHandlers for the 'Timers' event producer.
func (rp *Processor) TimersHandlers() []event.HandlerInfo {
func (rp *Processor) TimersHandlers() []event.NotificationHandlerInfo {
return nil
}

8
pkg/morph/event/handler.go → pkg/morph/event/handlers.go
View File

@ -10,21 +10,21 @@ type Handler func(Event)
// BlockHandler is a chain block processing function.
type BlockHandler func(*block.Block)
// HandlerInfo is a structure that groups
// NotificationHandlerInfo is a structure that groups
// the parameters of the handler of particular
// contract event.
type HandlerInfo struct {
type NotificationHandlerInfo struct {
scriptHashWithType
h Handler
}
// SetHandler is an event handler setter.
func (s *HandlerInfo) SetHandler(v Handler) {
func (s *NotificationHandlerInfo) SetHandler(v Handler) {
s.h = v
}
// Handler returns an event handler.
func (s HandlerInfo) Handler() Handler {
func (s NotificationHandlerInfo) Handler() Handler {
return s.h
}

151
pkg/morph/event/listener.go
View File

@ -29,22 +29,19 @@ type Listener interface {
// it could not be started.
ListenWithError(context.Context, chan<- error)
// SetParser must set the parser of particular contract event.
// SetNotificationParser must set the parser of particular contract event.
//
// Parser of each event must be set once. All parsers must be set before Listen call.
//
// Must ignore nil parsers and all calls after listener has been started.
SetParser(ParserInfo)
SetNotificationParser(NotificationParserInfo)
// RegisterHandler must register the event handler for particular notification event of contract.
// RegisterNotificationHandler must register the event handler for particular notification event of contract.
//
// The specified handler must be called after each capture and parsing of the event
// The specified handler must be called after each capture and parsing of the event.
//
// Must ignore nil handlers.
RegisterHandler(HandlerInfo)
// Stop must stop the event listener.
Stop()
RegisterNotificationHandler(NotificationHandlerInfo)
// RegisterBlockHandler must register chain block handler.
//
@ -52,6 +49,9 @@ type Listener interface {
//
// Must ignore nil handlers.
RegisterBlockHandler(BlockHandler)
// Stop must stop the event listener.
Stop()
}
// ListenerParams is a group of parameters
@ -69,9 +69,8 @@ type listener struct {
started bool
parsers map[scriptHashWithType]Parser
handlers map[scriptHashWithType][]Handler
notificationParsers map[scriptHashWithType]NotificationParser
notificationHandlers map[scriptHashWithType][]Handler
log *zap.Logger
@ -93,10 +92,10 @@ var (
// Executes once, all subsequent calls do nothing.
//
// Returns an error if listener was already started.
func (s listener) Listen(ctx context.Context) {
s.once.Do(func() {
if err := s.listen(ctx, nil); err != nil {
s.log.Error("could not start listen to events",
func (l listener) Listen(ctx context.Context) {
l.once.Do(func() {
if err := l.listen(ctx, nil); err != nil {
l.log.Error("could not start listen to events",
zap.String("error", err.Error()),
)
}
@ -109,10 +108,10 @@ func (s listener) Listen(ctx context.Context) {
// Executes once, all subsequent calls do nothing.
//
// Returns an error if listener was already started.
func (s listener) ListenWithError(ctx context.Context, intError chan<- error) {
s.once.Do(func() {
if err := s.listen(ctx, intError); err != nil {
s.log.Error("could not start listen to events",
func (l listener) ListenWithError(ctx context.Context, intError chan<- error) {
l.once.Do(func() {
if err := l.listen(ctx, intError); err != nil {
l.log.Error("could not start listen to events",
zap.String("error", err.Error()),
)
intError <- err
@ -120,13 +119,13 @@ func (s listener) ListenWithError(ctx context.Context, intError chan<- error) {
})
}
func (s listener) listen(ctx context.Context, intError chan<- error) error {
func (l listener) listen(ctx context.Context, intError chan<- error) error {
// create the list of listening contract hashes
hashes := make([]util.Uint160, 0)
// fill the list with the contracts with set event parsers.
s.mtx.RLock()
for hashType := range s.parsers {
l.mtx.RLock()
for hashType := range l.notificationParsers {
scHash := hashType.ScriptHash()
// prevent repetitions
@ -140,30 +139,30 @@ func (s listener) listen(ctx context.Context, intError chan<- error) error {
}
// mark listener as started
s.started = true
l.started = true
s.mtx.RUnlock()
l.mtx.RUnlock()
chEvent, err := s.subscriber.SubscribeForNotification(hashes...)
chEvent, err := l.subscriber.SubscribeForNotification(hashes...)
if err != nil {
return err
}
s.listenLoop(ctx, chEvent, intError)
l.listenLoop(ctx, chEvent, intError)
return nil
}
func (s listener) listenLoop(ctx context.Context, chEvent <-chan *state.NotificationEvent, intErr chan<- error) {
func (l listener) listenLoop(ctx context.Context, chEvent <-chan *state.NotificationEvent, intErr chan<- error) {
var blockChan <-chan *block.Block
if len(s.blockHandlers) > 0 {
if len(l.blockHandlers) > 0 {
var err error
if blockChan, err = s.subscriber.BlockNotifications(); err != nil {
if blockChan, err = l.subscriber.BlockNotifications(); err != nil {
if intErr != nil {
intErr <- fmt.Errorf("could not open block notifications channel: %w", err)
} else {
s.log.Debug("could not open block notifications channel",
l.log.Debug("could not open block notifications channel",
zap.String("error", err.Error()),
)
}
@ -178,47 +177,47 @@ loop:
for {
select {
case <-ctx.Done():
s.log.Info("stop event listener by context",
l.log.Info("stop event listener by context",
zap.String("reason", ctx.Err().Error()),
)
break loop
case notifyEvent, ok := <-chEvent:
if !ok {
s.log.Warn("stop event listener by channel")
l.log.Warn("stop event listener by channel")
if intErr != nil {
intErr <- errors.New("event subscriber connection has been terminated")
}
break loop
} else if notifyEvent == nil {
s.log.Warn("nil notification event was caught")
l.log.Warn("nil notification event was caught")
continue loop
}
s.parseAndHandle(notifyEvent)
l.parseAndHandleNotification(notifyEvent)
case b, ok := <-blockChan:
if !ok {
s.log.Warn("stop event listener by block channel")
l.log.Warn("stop event listener by block channel")
if intErr != nil {
intErr <- errors.New("new block notification channel is closed")
}
break loop
} else if b == nil {
s.log.Warn("nil block was caught")
l.log.Warn("nil block was caught")
continue loop
}
// TODO: consider asynchronous execution
for i := range s.blockHandlers {
s.blockHandlers[i](b)
for i := range l.blockHandlers {
l.blockHandlers[i](b)
}
}
}
}
func (s listener) parseAndHandle(notifyEvent *state.NotificationEvent) {
log := s.log.With(
func (l listener) parseAndHandleNotification(notifyEvent *state.NotificationEvent) {
log := l.log.With(
zap.String("script hash LE", notifyEvent.ScriptHash.StringLE()),
)
@ -247,9 +246,9 @@ func (s listener) parseAndHandle(notifyEvent *state.NotificationEvent) {
keyEvent.SetScriptHash(notifyEvent.ScriptHash)
keyEvent.SetType(typEvent)
s.mtx.RLock()
parser, ok := s.parsers[keyEvent]
s.mtx.RUnlock()
l.mtx.RLock()
parser, ok := l.notificationParsers[keyEvent]
l.mtx.RUnlock()
if !ok {
log.Debug("event parser not set")
@ -268,12 +267,12 @@ func (s listener) parseAndHandle(notifyEvent *state.NotificationEvent) {
}
// handler the event
s.mtx.RLock()
handlers := s.handlers[keyEvent]
s.mtx.RUnlock()
l.mtx.RLock()
handlers := l.notificationHandlers[keyEvent]
l.mtx.RUnlock()
if len(handlers) == 0 {
log.Info("handlers for parsed notification event were not registered",
log.Info("notification handlers for parsed notification event were not registered",
zap.Any("event", event),
)
@ -285,12 +284,12 @@ func (s listener) parseAndHandle(notifyEvent *state.NotificationEvent) {
}
}
// SetParser sets the parser of particular contract event.
// SetNotificationParser sets the parser of particular contract event.
//
// Ignores nil and already set parsers.
// Ignores the parser if listener is started.
func (s listener) SetParser(p ParserInfo) {
log := s.log.With(
func (l listener) SetNotificationParser(p NotificationParserInfo) {
log := l.log.With(
zap.String("script hash LE", p.ScriptHash().StringLE()),
zap.Stringer("event type", p.getType()),
)
@ -301,29 +300,29 @@ func (s listener) SetParser(p ParserInfo) {
return
}
s.mtx.Lock()
defer s.mtx.Unlock()
l.mtx.Lock()
defer l.mtx.Unlock()
// check if the listener was started
if s.started {
if l.started {
log.Warn("listener has been already started, ignore parser")
return
}
// add event parser
if _, ok := s.parsers[p.scriptHashWithType]; !ok {
s.parsers[p.scriptHashWithType] = p.parser()
if _, ok := l.notificationParsers[p.scriptHashWithType]; !ok {
l.notificationParsers[p.scriptHashWithType] = p.parser()
}
log.Info("registered new event parser")
}
// RegisterHandler registers the handler for particular notification event of contract.
// RegisterNotificationHandler registers the handler for particular notification event of contract.
//
// Ignores nil handlers.
// Ignores handlers of event without parser.
func (s listener) RegisterHandler(p HandlerInfo) {
log := s.log.With(
func (l listener) RegisterNotificationHandler(p NotificationHandlerInfo) {
log := l.log.With(
zap.String("script hash LE", p.ScriptHash().StringLE()),
zap.Stringer("event type", p.GetType()),
)
@ -335,9 +334,9 @@ func (s listener) RegisterHandler(p HandlerInfo) {
}
// check if parser was set
s.mtx.RLock()
_, ok := s.parsers[p.scriptHashWithType]
s.mtx.RUnlock()
l.mtx.RLock()
_, ok := l.notificationParsers[p.scriptHashWithType]
l.mtx.RUnlock()
if !ok {
log.Warn("ignore handler of event w/o parser")
@ -345,28 +344,28 @@ func (s listener) RegisterHandler(p HandlerInfo) {
}
// add event handler
s.mtx.Lock()
s.handlers[p.scriptHashWithType] = append(
s.handlers[p.scriptHashWithType],
l.mtx.Lock()
l.notificationHandlers[p.scriptHashWithType] = append(
l.notificationHandlers[p.scriptHashWithType],
p.Handler(),
)
s.mtx.Unlock()
l.mtx.Unlock()
log.Info("registered new event handler")
}
// Stop closes subscription channel with remote neo node.
func (s listener) Stop() {
s.subscriber.Close()
func (l listener) Stop() {
l.subscriber.Close()
}
func (s *listener) RegisterBlockHandler(handler BlockHandler) {
func (l *listener) RegisterBlockHandler(handler BlockHandler) {
if handler == nil {
s.log.Warn("ignore nil block handler")
l.log.Warn("ignore nil block handler")
return
}
s.blockHandlers = append(s.blockHandlers, handler)
l.blockHandlers = append(l.blockHandlers, handler)
}
// NewListener create the notification event listener instance and returns Listener interface.
@ -379,11 +378,11 @@ func NewListener(p ListenerParams) (Listener, error) {
}
return &listener{
mtx: new(sync.RWMutex),
once: new(sync.Once),
parsers: make(map[scriptHashWithType]Parser),
handlers: make(map[scriptHashWithType][]Handler),
log: p.Logger,
subscriber: p.Subscriber,
mtx: new(sync.RWMutex),
once: new(sync.Once),
notificationParsers: make(map[scriptHashWithType]NotificationParser),
notificationHandlers: make(map[scriptHashWithType][]Handler),
log: p.Logger,
subscriber: p.Subscriber,
}, nil
}

18
pkg/morph/event/parser.go → pkg/morph/event/parsers.go
View File

@ -6,17 +6,17 @@ import (
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
)
// Parser is a function that constructs Event
// NotificationParser is a function that constructs Event
// from the StackItem list.
type Parser func([]stackitem.Item) (Event, error)
type NotificationParser func([]stackitem.Item) (Event, error)
// ParserInfo is a structure that groups
// NotificationParserInfo is a structure that groups
// the parameters of particular contract
// notification event parser.
type ParserInfo struct {
type NotificationParserInfo struct {
scriptHashWithType
p Parser
p NotificationParser
}
type wrongPrmNumber struct {
@ -36,19 +36,19 @@ func (s wrongPrmNumber) Error() string {
}
// SetParser is an event parser setter.
func (s *ParserInfo) SetParser(v Parser) {
func (s *NotificationParserInfo) SetParser(v NotificationParser) {
s.p = v
}
func (s ParserInfo) parser() Parser {
func (s NotificationParserInfo) parser() NotificationParser {
return s.p
}
// SetType is an event type setter.
func (s *ParserInfo) SetType(v Type) {
func (s *NotificationParserInfo) SetType(v Type) {
s.typ = v
}
func (s ParserInfo) getType() Type {
func (s NotificationParserInfo) getType() Type {
return s.typ
}