frostfs-node/pkg/morph/event/utils.go
Pavel Karpy c167ae26f9 [#971] morph/event: Change notification parser's signature
Parsers should have original notification
structure to be able to construct internal
event structure that contains necessary
for unique nonce calculation information.
So notification parsers take raw notification
structure instead of slice of stack items.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
2021-11-19 09:58:03 +03:00

111 lines
2.5 KiB
Go

package event
import (
"errors"
"fmt"
"github.com/nspcc-dev/neo-go/pkg/core/mempoolevent"
"github.com/nspcc-dev/neo-go/pkg/rpc/response/result/subscriptions"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
"github.com/nspcc-dev/neofs-node/pkg/morph/client"
util2 "github.com/nspcc-dev/neofs-node/pkg/util"
"go.uber.org/zap"
)
type scriptHashValue struct {
hash util.Uint160
}
type typeValue struct {
typ Type
}
type scriptHashWithType struct {
scriptHashValue
typeValue
}
type notaryRequestTypes struct {
notaryRequestMempoolType
notaryRequestType
scriptHashValue
}
type notaryRequestMempoolType struct {
mempoolTyp mempoolevent.Type
}
type notaryRequestType struct {
notaryType NotaryType
}
// GetMempoolType is a notary request mempool type getter.
func (n notaryRequestMempoolType) GetMempoolType() mempoolevent.Type {
return n.mempoolTyp
}
// SetMempoolType is a notary request mempool type setter.
func (n *notaryRequestMempoolType) SetMempoolType(typ mempoolevent.Type) {
n.mempoolTyp = typ
}
// RequestType is a notary request type getter.
func (n notaryRequestType) RequestType() NotaryType {
return n.notaryType
}
// SetRequestType is a notary request type setter.
func (n *notaryRequestType) SetRequestType(typ NotaryType) {
n.notaryType = typ
}
// SetScriptHash is a script hash setter.
func (s *scriptHashValue) SetScriptHash(v util.Uint160) {
s.hash = v
}
// ScriptHash is a script hash getter.
func (s scriptHashValue) ScriptHash() util.Uint160 {
return s.hash
}
// SetType is an event type setter.
func (s *typeValue) SetType(v Type) {
s.typ = v
}
// GetType is an event type getter.
func (s typeValue) GetType() Type {
return s.typ
}
// WorkerPoolHandler sets closure over worker pool w with passed handler h.
func WorkerPoolHandler(w util2.WorkerPool, h Handler, log *zap.Logger) Handler {
return func(e Event) {
err := w.Submit(func() {
h(e)
})
if err != nil {
log.Warn("could not Submit handler to worker pool",
zap.String("error", err.Error()),
)
}
}
}
var errEmptyStackArray = errors.New("stack item array is empty")
// ParseStackArray parses stack array from raw notification
// event received from neo-go RPC node.
func ParseStackArray(event *subscriptions.NotificationEvent) ([]stackitem.Item, error) {
arr, err := client.ArrayFromStackItem(event.Item)
if err != nil {
return nil, fmt.Errorf("stack item is not an array type: %w", err)
} else if len(arr) == 0 {
return nil, errEmptyStackArray
}
return arr, nil
}