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81efd2cc61
Every struct was put in its own file. Every method which is not used outside the parser package was given package scope. All interfaces were removed, they are implemented by the structs which are now used everywhere needed as return values. There is no clear benefit of using interfaces in this sample. Signed-off-by: Stanislav Jakuschevskij <stas@two-giants.com>
105 lines
3.5 KiB
Go
105 lines
3.5 KiB
Go
package parser
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import (
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"offChainData/utils"
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"github.com/hyperledger/fabric-protos-go-apiv2/ledger/rwset"
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"github.com/hyperledger/fabric-protos-go-apiv2/peer"
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"google.golang.org/protobuf/proto"
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)
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type endorserTransaction struct {
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transaction *peer.Transaction
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}
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func parseEndorserTransaction(transaction *peer.Transaction) *endorserTransaction {
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return &endorserTransaction{transaction}
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}
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func (p *endorserTransaction) readWriteSets() []*readWriteSet {
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return utils.Cache(func() []*readWriteSet {
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chaincodeActionPayloads := p.unmarshalChaincodeActionPayloads()
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chaincodeEndorsedActions := p.extractChaincodeEndorsedActionsFrom(chaincodeActionPayloads)
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proposalResponsePayloads := p.unmarshalProposalResponsePayloadsFrom(chaincodeEndorsedActions)
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chaincodeActions := p.unmarshalChaincodeActionsFrom(proposalResponsePayloads)
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txReadWriteSets := p.unmarshalTxReadWriteSetsFrom(chaincodeActions)
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return p.parseReadWriteSets(txReadWriteSets)
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})()
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}
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func (p *endorserTransaction) unmarshalChaincodeActionPayloads() []*peer.ChaincodeActionPayload {
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result := []*peer.ChaincodeActionPayload{}
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for _, transactionAction := range p.transaction.GetActions() {
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chaincodeActionPayload := &peer.ChaincodeActionPayload{}
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if err := proto.Unmarshal(transactionAction.GetPayload(), chaincodeActionPayload); err != nil {
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panic(err)
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}
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result = append(result, chaincodeActionPayload)
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}
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return result
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}
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func (*endorserTransaction) extractChaincodeEndorsedActionsFrom(chaincodeActionPayloads []*peer.ChaincodeActionPayload) []*peer.ChaincodeEndorsedAction {
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result := []*peer.ChaincodeEndorsedAction{}
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for _, payload := range chaincodeActionPayloads {
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result = append(
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result,
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utils.AssertDefined(
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payload.GetAction(),
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"missing chaincode endorsed action",
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),
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)
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}
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return result
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}
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func (*endorserTransaction) unmarshalProposalResponsePayloadsFrom(chaincodeEndorsedActions []*peer.ChaincodeEndorsedAction) []*peer.ProposalResponsePayload {
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result := []*peer.ProposalResponsePayload{}
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for _, endorsedAction := range chaincodeEndorsedActions {
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proposalResponsePayload := &peer.ProposalResponsePayload{}
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if err := proto.Unmarshal(endorsedAction.GetProposalResponsePayload(), proposalResponsePayload); err != nil {
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panic(err)
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}
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result = append(result, proposalResponsePayload)
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}
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return result
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}
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func (*endorserTransaction) unmarshalChaincodeActionsFrom(proposalResponsePayloads []*peer.ProposalResponsePayload) []*peer.ChaincodeAction {
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result := []*peer.ChaincodeAction{}
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for _, proposalResponsePayload := range proposalResponsePayloads {
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chaincodeAction := &peer.ChaincodeAction{}
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if err := proto.Unmarshal(proposalResponsePayload.GetExtension(), chaincodeAction); err != nil {
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panic(err)
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}
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result = append(result, chaincodeAction)
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}
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return result
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}
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func (*endorserTransaction) unmarshalTxReadWriteSetsFrom(chaincodeActions []*peer.ChaincodeAction) []*rwset.TxReadWriteSet {
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result := []*rwset.TxReadWriteSet{}
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for _, chaincodeAction := range chaincodeActions {
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txReadWriteSet := &rwset.TxReadWriteSet{}
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if err := proto.Unmarshal(chaincodeAction.GetResults(), txReadWriteSet); err != nil {
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continue
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}
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result = append(result, txReadWriteSet)
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}
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return result
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}
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func (*endorserTransaction) parseReadWriteSets(txReadWriteSets []*rwset.TxReadWriteSet) []*readWriteSet {
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result := []*readWriteSet{}
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for _, txReadWriteSet := range txReadWriteSets {
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parsedReadWriteSet := parseReadWriteSet(txReadWriteSet)
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result = append(result, parsedReadWriteSet)
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}
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return result
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}
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