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55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
/*
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* SPDX-License-Identifier: Apache-2.0
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*/
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package commercialpaper
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import ledgerapi "github.com/hyperledger/fabric-samples/commercial-paper/organization/digibank/contract-go/ledger-api"
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// ListInterface defines functionality needed
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// to interact with the world state on behalf
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// of a commercial paper
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type ListInterface interface {
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AddPaper(*CommercialPaper) error
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GetPaper(string, string) (*CommercialPaper, error)
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UpdatePaper(*CommercialPaper) error
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}
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type list struct {
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stateList ledgerapi.StateListInterface
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}
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func (cpl *list) AddPaper(paper *CommercialPaper) error {
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return cpl.stateList.AddState(paper)
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}
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func (cpl *list) GetPaper(issuer string, paperNumber string) (*CommercialPaper, error) {
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cp := new(CommercialPaper)
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err := cpl.stateList.GetState(CreateCommercialPaperKey(issuer, paperNumber), cp)
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if err != nil {
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return nil, err
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}
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return cp, nil
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}
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func (cpl *list) UpdatePaper(paper *CommercialPaper) error {
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return cpl.stateList.UpdateState(paper)
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}
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// NewList create a new list from context
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func newList(ctx TransactionContextInterface) *list {
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stateList := new(ledgerapi.StateList)
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stateList.Ctx = ctx
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stateList.Name = "org.papernet.commercialpaperlist"
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stateList.Deserialize = func(bytes []byte, state ledgerapi.StateInterface) error {
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return Deserialize(bytes, state.(*CommercialPaper))
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}
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list := new(list)
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list.stateList = stateList
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return list
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}
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