mirror of
https://github.com/hyperledger/fabric-samples.git
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2c43e03591
Created parser, contract and utils packages and extracted each piece of functionality into its own files. Removed "Get" prefix from methods and changed return values from interfaces to structs. Signed-off-by: Stanislav Jakuschevskij <stas@two-giants.com>
82 lines
2.1 KiB
Go
82 lines
2.1 KiB
Go
package parser
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import (
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"fmt"
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"offChainData/utils"
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"github.com/hyperledger/fabric-protos-go-apiv2/common"
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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 Payload interface {
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ChannelHeader() *common.ChannelHeader
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EndorserTransaction() EndorserTransaction
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SignatureHeader() *common.SignatureHeader
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TransactionValidationCode() int32
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IsEndorserTransaction() bool
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IsValid() bool
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ToProto() *common.Payload
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}
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type PayloadImpl struct {
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payload *common.Payload
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statusCode int32
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}
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func ParsePayload(payload *common.Payload, statusCode int32) *PayloadImpl {
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return &PayloadImpl{payload, statusCode}
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}
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func (p *PayloadImpl) ChannelHeader() *common.ChannelHeader {
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header := utils.AssertDefined(p.payload.GetHeader(), "missing payload header")
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// TODO add cache, return cachedChannelHeader like in blockParser.ts:77
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result := &common.ChannelHeader{}
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if err := proto.Unmarshal(header.GetChannelHeader(), result); err != nil {
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panic(err)
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}
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return result
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}
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func (p *PayloadImpl) EndorserTransaction() EndorserTransaction {
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if !p.IsEndorserTransaction() {
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panic(fmt.Errorf("unexpected payload type: %d", p.ChannelHeader().GetType()))
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}
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result := &peer.Transaction{}
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if err := proto.Unmarshal(p.payload.GetData(), result); err != nil {
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panic(err)
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}
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return ParseEndorserTransaction(result)
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}
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func (p *PayloadImpl) SignatureHeader() *common.SignatureHeader {
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header := utils.AssertDefined(p.payload.GetHeader(), "missing payload header")
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// TODO add cache, return cachedSignatureHeader like in blockParser.ts:77
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result := &common.SignatureHeader{}
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if err := proto.Unmarshal(header.GetSignatureHeader(), result); err != nil {
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panic(err)
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}
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return result
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}
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func (p *PayloadImpl) TransactionValidationCode() int32 {
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return p.statusCode
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}
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func (p *PayloadImpl) IsEndorserTransaction() bool {
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return p.ChannelHeader().GetType() == int32(common.HeaderType_ENDORSER_TRANSACTION)
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}
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func (p *PayloadImpl) IsValid() bool {
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return p.statusCode == int32(peer.TxValidationCode_VALID)
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}
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func (p *PayloadImpl) ToProto() *common.Payload {
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return p.payload
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}
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