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finalityStore.go
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finalityStore.go
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package store
import (
"fmt"
jsoniter "github.com/json-iterator/go"
"github.com/icon-project/centralized-relay/relayer/types"
)
type FinalityStore struct {
db Store
prefix string
}
func NewFinalityStore(db Store, prefix string) *FinalityStore {
return &FinalityStore{
db: db,
prefix: prefix,
}
}
func (ms *FinalityStore) TotalCount() (uint64, error) {
return ms.getCountByKey(GetKey([]string{ms.prefix}))
}
func (ms *FinalityStore) TotalCountByChain(nId string) (uint64, error) {
return ms.getCountByKey(GetKey([]string{ms.prefix, nId}))
}
func (ms *FinalityStore) getCountByKey(key []byte) (uint64, error) {
iter := ms.db.NewIterator(key)
count := 0
for iter.Next() {
count++
}
iter.Release()
err := iter.Error()
if err != nil {
return 0, err
}
return uint64(count), nil
}
// message will be stored based on destination nId
func (ms *FinalityStore) StoreTxObject(message *types.TransactionObject) error {
if message == nil {
return fmt.Errorf("error while storingMessage: message cannot be nil")
}
key := GetKey([]string{
ms.prefix,
message.Dst,
fmt.Sprintf("%d", message.Sn),
})
msgByte, err := ms.Encode(message)
if err != nil {
return err
}
return ms.db.SetByKey(key, msgByte)
}
func (ms *FinalityStore) GetTxObject(messageKey *types.MessageKey) (*types.TransactionObject, error) {
v, err := ms.db.GetByKey(GetKey([]string{
ms.prefix,
messageKey.Dst,
fmt.Sprintf("%d", messageKey.Sn),
}))
if err != nil {
return nil, err
}
var msg types.TransactionObject
if err := ms.Decode(v, &msg); err != nil {
return nil, err
}
return &msg, nil
}
func (ms *FinalityStore) GetTxObjects(nId string, p *Pagination) ([]*types.TransactionObject, error) {
var messages []*types.TransactionObject
keyPrefixList := []string{ms.prefix}
if nId != "" {
keyPrefixList = append(keyPrefixList, nId)
}
iter := ms.db.NewIterator(GetKey(keyPrefixList))
// return all the messages
if p.All {
for iter.Next() {
var msg types.TransactionObject
if err := ms.Decode(iter.Value(), &msg); err != nil {
return nil, err
}
messages = append(messages, &msg)
}
iter.Release()
err := iter.Error()
if err != nil {
return nil, err
}
return messages, nil
}
// if not all use the offset logic
for i := 0; i < int(p.Offset); i++ {
if !iter.Next() {
return nil, fmt.Errorf("no message after offset")
}
}
for i := uint64(0); i < uint64(p.Limit); i++ {
if !iter.Next() {
break
}
var msg types.TransactionObject
if err := ms.Decode(iter.Value(), &msg); err != nil {
return nil, err
}
messages = append(messages, &msg)
}
iter.Release()
err := iter.Error()
if err != nil {
return nil, err
}
return messages, nil
}
func (ms *FinalityStore) DeleteTxObject(messageKey *types.MessageKey) error {
return ms.db.DeleteByKey(
GetKey([]string{ms.prefix, messageKey.Dst, fmt.Sprintf("%d", messageKey.Sn)}))
}
func (ms *FinalityStore) Encode(d interface{}) ([]byte, error) {
return jsoniter.Marshal(d)
}
func (ms *FinalityStore) Decode(data []byte, output interface{}) error {
return jsoniter.Unmarshal(data, output)
}