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/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package valimpl
import (
"github.com/hyperledger/fabric/common/flogging"
"github.com/hyperledger/fabric/core/ledger"
"github.com/hyperledger/fabric/core/ledger/kvledger/txmgmt/privacyenabledstate"
"github.com/hyperledger/fabric/core/ledger/kvledger/txmgmt/txmgr"
"github.com/hyperledger/fabric/core/ledger/kvledger/txmgmt/validator"
"github.com/hyperledger/fabric/core/ledger/kvledger/txmgmt/validator/internal"
"github.com/hyperledger/fabric/core/ledger/kvledger/txmgmt/validator/statebasedval"
"github.com/hyperledger/fabric/core/ledger/util"
"github.com/hyperledger/fabric/protos/common"
)
var logger = flogging.MustGetLogger("valimpl")
// DefaultImpl implements the interface validator.Validator
// This performs the common tasks that are independent of a particular scheme of validation
// and for actual validation of the public rwset, it encloses an internal validator (that implements interface
// internal.InternalValidator) such as statebased validator
type DefaultImpl struct {
txmgr txmgr.TxMgr
db privacyenabledstate.DB
internalValidator internal.Validator
}
// NewStatebasedValidator constructs a validator that internally manages statebased validator and in addition
// handles the tasks that are agnostic to a particular validation scheme such as parsing the block and handling the pvt data
func NewStatebasedValidator(txmgr txmgr.TxMgr, db privacyenabledstate.DB) validator.Validator {
return &DefaultImpl{txmgr, db, statebasedval.NewValidator(db)}
}
// ValidateAndPrepareBatch implements the function in interface validator.Validator
func (impl *DefaultImpl) ValidateAndPrepareBatch(blockAndPvtdata *ledger.BlockAndPvtData,
doMVCCValidation bool) (*privacyenabledstate.UpdateBatch, []*txmgr.TxStatInfo, error) {
block := blockAndPvtdata.Block
logger.Debugf("ValidateAndPrepareBatch() for block number = [%d]", block.Header.Number)
var internalBlock *internal.Block
var txsStatInfo []*txmgr.TxStatInfo
var pubAndHashUpdates *internal.PubAndHashUpdates
var pvtUpdates *privacyenabledstate.PvtUpdateBatch
var err error
logger.Debug("preprocessing ProtoBlock...")
if internalBlock, txsStatInfo, err = preprocessProtoBlock(impl.txmgr, impl.db.ValidateKeyValue, block, doMVCCValidation); err != nil {
return nil, nil, err
}
if pubAndHashUpdates, err = impl.internalValidator.ValidateAndPrepareBatch(internalBlock, doMVCCValidation); err != nil {
return nil, nil, err
}
logger.Debug("validating rwset...")
if pvtUpdates, err = validateAndPreparePvtBatch(internalBlock, impl.db, pubAndHashUpdates, blockAndPvtdata.PvtData); err != nil {
return nil, nil, err
}
logger.Debug("postprocessing ProtoBlock...")
postprocessProtoBlock(block, internalBlock)
logger.Debug("ValidateAndPrepareBatch() complete")
txsFilter := util.TxValidationFlags(block.Metadata.Metadata[common.BlockMetadataIndex_TRANSACTIONS_FILTER])
for i := range txsFilter {
txsStatInfo[i].ValidationCode = txsFilter.Flag(i)
}
return &privacyenabledstate.UpdateBatch{
PubUpdates: pubAndHashUpdates.PubUpdates,
HashUpdates: pubAndHashUpdates.HashUpdates,
PvtUpdates: pvtUpdates,
}, txsStatInfo, nil
}
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