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logsGetter.go
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logsGetter.go
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package esdtSupply
import (
"encoding/hex"
"github.com/ElrondNetwork/elrond-go-core/data"
"github.com/ElrondNetwork/elrond-go-core/data/block"
"github.com/ElrondNetwork/elrond-go-core/data/transaction"
"github.com/ElrondNetwork/elrond-go-core/marshal"
"github.com/ElrondNetwork/elrond-go/storage"
)
type logsGetter struct {
logsStorer storage.Storer
marshalizer marshal.Marshalizer
}
func newLogsGetter(
marshalizer marshal.Marshalizer,
logsStorer storage.Storer,
) *logsGetter {
return &logsGetter{
logsStorer: logsStorer,
marshalizer: marshalizer,
}
}
func (lg *logsGetter) getLogsBasedOnBody(blockBody data.BodyHandler) (map[string]data.LogHandler, error) {
body, ok := blockBody.(*block.Body)
if !ok {
return nil, errCannotCastToBlockBody
}
logsDB := make(map[string]data.LogHandler)
for _, mb := range body.MiniBlocks {
shouldIgnore := mb.Type != block.TxBlock && mb.Type != block.SmartContractResultBlock
if shouldIgnore {
continue
}
dbLogsMb, err := lg.getLogsBasedOnMB(mb)
if err != nil {
return nil, err
}
logsDB = mergeLogsMap(logsDB, dbLogsMb)
}
return logsDB, nil
}
func (lg *logsGetter) getLogsBasedOnMB(mb *block.MiniBlock) (map[string]data.LogHandler, error) {
dbLogs := make(map[string]data.LogHandler)
for _, txHash := range mb.TxHashes {
txLog, ok, err := lg.getTxLog(txHash)
if err != nil {
return nil, err
}
if !ok {
continue
}
dbLogs[string(txHash)] = txLog
}
return dbLogs, nil
}
func (lg *logsGetter) getTxLog(txHash []byte) (data.LogHandler, bool, error) {
logBytes, err := lg.logsStorer.Get(txHash)
if err != nil {
return nil, false, nil
}
logFromDB := &transaction.Log{}
err = lg.marshalizer.Unmarshal(logFromDB, logBytes)
if err != nil {
log.Warn("logsGetter.getTxLog cannot unmarshal log",
"error", err,
"txHash", hex.EncodeToString(txHash),
)
return nil, false, err
}
return logFromDB, true, nil
}
func mergeLogsMap(m1, m2 map[string]data.LogHandler) map[string]data.LogHandler {
finalMap := make(map[string]data.LogHandler, len(m1)+len(m2))
for key, value := range m1 {
finalMap[key] = value
}
for key, value := range m2 {
finalMap[key] = value
}
return finalMap
}