state

package
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 Go to latest Published: Nov 16, 2022 License: Apache-2.0 Imports: 25 Imported by: 2

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Index

Constants

View Source 
const (
	CertificationType string = "CertificationType"
	Certification     string = "Certification"

	ChaincodeCertification string = "ChaincodesCertification"

	CertificationFnc string = "state_certification"
)
View Source 
const (
	MaxUnicodeRuneValue = utf8.MaxRune // U+10FFFF - maximum (and unallocated) code point

)

Variables

This section is empty.

Functions

func CreateCompositeKey 

func CreateCompositeKey(objectType string, attributes []string) (string, error)

func CreateNonce 

func CreateNonce() ([]byte, error)

CreateNonce generates a nonce using the common/crypto package.

func CreateNonceOrPanic 

func CreateNonceOrPanic() []byte

CreateNonceOrPanic generates a nonce using the common/crypto package and panics if this operation fails.

func CreateRangeKeysForPartialCompositeKey 

func CreateRangeKeysForPartialCompositeKey(objectType string, attributes []string) (string, string, error)

func ExchangeRecipientIdentities 

func ExchangeRecipientIdentities(context view.Context, recipient view.Identity, opts ...ServiceOption) (view.Identity, view.Identity, error)

ExchangeRecipientIdentities runs the ExchangeRecipientIdentitiesView against the passed receiver. The function returns, the recipient identity of the sender, the recipient identity of the receiver.

func GenerateBytesUUID 

func GenerateBytesUUID() []byte

GenerateBytesUUID returns a UUID based on RFC 4122 returning the generated bytes

func GenerateUUID 

func GenerateUUID() string

GenerateUUID returns a UUID based on RFC 4122

func GetCertification 

func GetCertification(tx TxTransientStore, id string) ([]byte, error)

func GetCertificationType 

func GetCertificationType(tx TxTransientStore) (string, []byte, error)

func IDHasPrefixFilter 

func IDHasPrefixFilter(prefix string) func(k ID) bool

func InputHasIDPrefixFilter 

func InputHasIDPrefixFilter(prefix string) func(i *input) bool

func NewAcceptView 

func NewAcceptView(tx *Transaction) view.View

func NewCollectApprovesView 

func NewCollectApprovesView(tx *Transaction, parties ...view.Identity) view.View

func NewCollectEndorsementsView 

func NewCollectEndorsementsView(tx *Transaction, parties ...view.Identity) view.View

NewCollectEndorsementsView returns a view that does the following: 1. It contacts each passed party sequentially and sends the marshalled version of the passed transaction. 2. It waits for a response containing either the endorsement of the transaction or an error.

func NewEndorseView 

func NewEndorseView(tx *Transaction, ids ...view.Identity) view.View

NewEndorseView returns a view that does the following: 1. It signs the transaction with the signing key of each passed identity 2. Send the transaction back on the context's session.

func NewEndorsementOnProposalResponderView 

func NewEndorsementOnProposalResponderView(tx *Transaction) view.View

func NewFinalityView 

func NewFinalityView(tx *Transaction) view.View

NewFinalityView returns a new instance of the finality view that waits for the finality of the passed transaction.

func NewFinalityWithTimeoutView 

func NewFinalityWithTimeoutView(tx *Transaction, timeout time.Duration) view.View

NewFinalityWithTimeoutView runs the finality view for the passed transaction and timeout

func NewOrderingAndFinalityView 

func NewOrderingAndFinalityView(tx *Transaction) view.View

NewOrderingAndFinalityView returns a view that does the following: 1. Sends the passed transaction to the ordering service. 2. Waits for the finality of the transaction.

func NewOrderingAndFinalityWithTimeoutView 

func NewOrderingAndFinalityWithTimeoutView(tx *Transaction, timeout time.Duration) view.View

func NewParallelCollectEndorsementsOnProposalView 

func NewParallelCollectEndorsementsOnProposalView(tx *Transaction, parties ...view.Identity) view.View

func NewPayloadReceiveView 

func NewPayloadReceiveView() *payloadReceiveView

func NewReceiveTransactionFromView 

func NewReceiveTransactionFromView(party view.Identity) *receiveTransactionView

func NewReceiveTransactionView 

func NewReceiveTransactionView() *receiveTransactionView

func NewReceiveView 

func NewReceiveView(state interface{}) *receiveView

func NewReplyView 

func NewReplyView(state interface{}) *replyView

func NewRespondRequestRecipientIdentityView 

func NewRespondRequestRecipientIdentityView() view.View

NewRespondRequestRecipientIdentityView returns a new instance of RespondRequestRecipientIdentityView

func NewSendReceiveView 

func NewSendReceiveView(sendState, receiveState interface{}, party view.Identity) *sendReceiveView

func NewSendTransactionBackView 

func NewSendTransactionBackView(tx *Transaction) *sendTransactionBackView

func NewSendTransactionView 

func NewSendTransactionView(tx *Transaction, parties ...view.Identity) *sendTransactionView

func RequestRecipientIdentity 

func RequestRecipientIdentity(context view.Context, other view.Identity) (view.Identity, error)

func RespondExchangeRecipientIdentities 

func RespondExchangeRecipientIdentities(context view.Context, opts ...ServiceOption) (view.Identity, view.Identity, error)

RespondExchangeRecipientIdentities runs the RespondExchangeRecipientIdentitiesView

func RespondRequestRecipientIdentity 

func RespondRequestRecipientIdentity(context view.Context) (view.Identity, error)

RespondRequestRecipientIdentity runs the RespondRequestRecipientIdentityView and returns the identity sent to the requester. In this case, the identity used is the one returned by fabric.GetFabricNetworkService(context, rr.Network).IdentityProvider().DefaultIdentity()a

func SetCertification 

func SetCertification(tx TxTransientStore, id string, value []byte) error

func SetCertificationType 

func SetCertificationType(tx TxTransientStore, typ string, value []byte) error

func Unmarshal 

func Unmarshal(unmarshaller Unmarshaller, data []byte, v interface{}) error

Types

type AddInputOption 

type AddInputOption func(*addInputOptions) error

func WithCertification 

func WithCertification() AddInputOption

type AddOutputOption 

type AddOutputOption func(*addOutputOptions) error

func WithContract 

func WithContract(contract string) AddOutputOption

func WithHashHiding 

func WithHashHiding() AddOutputOption

func WithStateBasedEndorsement 

func WithStateBasedEndorsement() AddOutputOption

type AutoLinearState 

type AutoLinearState interface {
	GetLinearID() (string, error)
}

type Bytes 

type Bytes struct {
	Payload []byte
}

type CertificationRequest 

type CertificationRequest struct {
	Channel   string
	Namespace string
	Key       string
}

type CertificationView 

type CertificationView struct {
	*CertificationRequest
}

func (*CertificationView) Call 

func (c *CertificationView) Call(context view.Context) (interface{}, error)

type CertificationViewFactory 

type CertificationViewFactory struct{}

func (*CertificationViewFactory) NewView 

func (c *CertificationViewFactory) NewView(in []byte) (view.View, error)

type Codec 

type Codec interface {
	Marshaller
	Unmarshaller
}

type Command 

type Command struct {
	// Name of the commands
	Name string
	// Ids contains the identities that the command involves
	Ids Identities
}

Command models an operation that involve given business parties

type CommonIteratorInterface 

type CommonIteratorInterface interface {
	// HasNext returns true if the range query iterator contains additional keys
	// and values.
	HasNext() bool

	// Close closes the iterator. This should be called when done
	// reading from the iterator to free up resources.
	Close() error
}

type EmbeddingState 

type EmbeddingState interface {
	GetState() interface{}
}

type EndorseTransaction 

type EndorseTransaction interface {
}

type ExchangeRecipientIdentitiesView 

type ExchangeRecipientIdentitiesView struct {
	Network       string
	IdentityLabel string
	Other         view.Identity
}

ExchangeRecipientIdentitiesView models the view of the initiator of an exchange of recipient identities.

func (*ExchangeRecipientIdentitiesView) Call 

func (f *ExchangeRecipientIdentitiesView) Call(context view.Context) (interface{}, error)

type ExchangeRecipientRequest 

type ExchangeRecipientRequest struct {
	Channel       string
	WalletID      []byte
	RecipientData *RecipientData
}

ExchangeRecipientRequest models a request of exchange of recipient identities

func (*ExchangeRecipientRequest) Bytes 

func (r *ExchangeRecipientRequest) Bytes() ([]byte, error)

Bytes returns the byte representation of this struct

func (*ExchangeRecipientRequest) FromBytes 

func (r *ExchangeRecipientRequest) FromBytes(raw []byte) error

FromBytes unmarshalls the passed bytes into this struct 

type Header struct {
	Commands []*Command
}

type ID 

type ID string

func (ID) HasPrefix 

func (k ID) HasPrefix(prefix string) bool

type IDs 

type IDs []ID

func (IDs) Count 

func (k IDs) Count() int

func (IDs) Filter 

func (k IDs) Filter(f func(k ID) bool) IDs

func (IDs) Match 

func (k IDs) Match(keys IDs) bool

type Identities 

type Identities []view.Identity

func (Identities) Contain 

func (i Identities) Contain(id view.Identity) bool

func (Identities) Count 

func (i Identities) Count() int

Count returns the number of identities in the list

func (Identities) Filter 

func (i Identities) Filter(f func(identity view.Identity) bool) Identities

func (Identities) Match 

func (i Identities) Match(ids []view.Identity) bool

Match returns true if the list of passed identities is equal to this set of identities modulo the position of each identity.

func (Identities) Others 

func (i Identities) Others(me view.Identity) Identities

type JSONCodec 

type JSONCodec struct{}

func (*JSONCodec) Marshal 

func (J *JSONCodec) Marshal(v interface{}) ([]byte, error)

func (*JSONCodec) Unmarshal 

func (J *JSONCodec) Unmarshal(data []byte, v interface{}) error

type LinearState 

type LinearState interface {
	// SetLinearID assigns the passed id to the state
	SetLinearID(id string) string
}

LinearState models a state with a unique identifier that does not change through the evolution of the state.

type Marshaller 

type Marshaller interface {
	Marshal(v interface{}) ([]byte, error)
}

type MetaHandler 

type MetaHandler interface {
	StoreMeta(ns *Namespace, s interface{}, namespace string, key string, options *addOutputOptions) error
}

type Namespace 

type Namespace struct {
	// contains filtered or unexported fields
}

func NewNamespace 

func NewNamespace(tx *endorser.Transaction, forceSBE bool) *Namespace

func NewNamespaceForName 

func NewNamespaceForName(tx *endorser.Transaction, ns string, forceSBE bool) *Namespace

func (*Namespace) AddCommand 

func (n *Namespace) AddCommand(command string, ids ...view.Identity) error

AddCommand appends a new Command to this namespace

func (*Namespace) AddInputByLinearID 

func (n *Namespace) AddInputByLinearID(id string, state interface{}, opts ...AddInputOption) error

AddInputByLinearID add a reference to the state with the passed id. In addition, the function pupulates the passed state with the content of state associated to the passed id and stored in the vault. Options can be passed to change the behaviour of the function.

func (*Namespace) AddOutput 

func (n *Namespace) AddOutput(st interface{}, opts ...AddOutputOption) error

AddOutput adds the passed state following the passed options. This corresponds to a write entry in the RWSet

func (*Namespace) Commands 

func (n *Namespace) Commands() *commandStream

Commands returns a stream containing the commands in this namespace

func (*Namespace) Delete 

func (n *Namespace) Delete(state interface{}) error

func (*Namespace) GetInputAt 

func (n *Namespace) GetInputAt(index int, state interface{}) error

GetInputAt populates the passed state with the content of the input in the passed position. The content of the input is loaded from the vault.

func (*Namespace) GetOutputAt 

func (n *Namespace) GetOutputAt(index int, state interface{}) error

GetOutputAt populates the passed state with the content of the output in the passed position

func (*Namespace) GetService 

func (n *Namespace) GetService(v interface{}) (interface{}, error)

func (*Namespace) Inputs 

func (n *Namespace) Inputs() *inputStream

Inputs returns a stream containing the inputs in this namespace

func (*Namespace) NumInputs 

func (n *Namespace) NumInputs() int

NumInputs returns the number of inputs (or reads in the RWSet) contained in this namespace

func (*Namespace) NumOutputs 

func (n *Namespace) NumOutputs() int

NumOutputs returns the number of outputs (or writes in the RWSet) contained in this namespace

func (*Namespace) Outputs 

func (n *Namespace) Outputs() *outputStream

Outputs returns a stream containing the outputs in this namespace

func (*Namespace) Present 

func (n *Namespace) Present() bool

func (*Namespace) RWSet 

func (n *Namespace) RWSet() (*fabric.RWSet, error)

TODO: remove

func (*Namespace) SetNamespace 

func (n *Namespace) SetNamespace(ns string)

SetNamespace sets the name of this namespace

func (*Namespace) VerifyInputCertificationAt 

func (n *Namespace) VerifyInputCertificationAt(index int, key string) error

type Namespaces 

type Namespaces []string

func (Namespaces) Count 

func (k Namespaces) Count() int

func (Namespaces) Filter 

func (k Namespaces) Filter(f func(k string) bool) Namespaces

func (Namespaces) Match 

func (k Namespaces) Match(keys Namespaces) bool

type Network 

type Network interface {
	Channel(name string) (*fabric.Channel, error)
}

type Ownable 

type Ownable interface {
	// Owners returns the identities of the owners of this state
	Owners() Identities
}

Ownable models an ownable state

type QueryIteratorInterface 

type QueryIteratorInterface interface {
	CommonIteratorInterface

	Next(state interface{}) (string, error)
}

QueryIteratorInterface models a state iterator

type RWSetProcessor 

type RWSetProcessor struct {
	// contains filtered or unexported fields
}

func NewRWSetProcessor 

func NewRWSetProcessor(network Network) *RWSetProcessor

func (*RWSetProcessor) Process 

func (r *RWSetProcessor) Process(req fabric.Request, tx fabric.ProcessTransaction, rws *fabric.RWSet, ns string) error

type RecipientData 

type RecipientData struct {
	// Identity is the recipient identity
	Identity view.Identity
}

RecipientData models the answer to a request of recipient identity

func (*RecipientData) Bytes 

func (r *RecipientData) Bytes() ([]byte, error)

Bytes returns the byte representation of this struct

func (*RecipientData) FromBytes 

func (r *RecipientData) FromBytes(raw []byte) error

FromBytes unmarshalls the passed bytes into this struct

type RecipientRequest 

type RecipientRequest struct {
	// Network identifier
	Network string
}

RecipientRequest models a request of recipient identity

func (*RecipientRequest) Bytes 

func (r *RecipientRequest) Bytes() ([]byte, error)

Bytes returns the byte representation of this struct

func (*RecipientRequest) FromBytes 

func (r *RecipientRequest) FromBytes(raw []byte) error

FromBytes unmarshalls the passed bytes into this struct

type RequestRecipientIdentityView 

type RequestRecipientIdentityView struct {
	Network string
	Other   view.Identity
}

func (RequestRecipientIdentityView) Call 

func (f RequestRecipientIdentityView) Call(context view.Context) (interface{}, error)

type RespondExchangeRecipientIdentitiesView 

type RespondExchangeRecipientIdentitiesView struct {
	Network       string
	IdentityLabel string
}

RespondExchangeRecipientIdentitiesView models the view of the responder of an exchange of recipient identities.

func (*RespondExchangeRecipientIdentitiesView) Call 

func (s *RespondExchangeRecipientIdentitiesView) Call(context view.Context) (interface{}, error)

type RespondRequestRecipientIdentityView 

type RespondRequestRecipientIdentityView struct {
	Identity view.Identity
}

RespondRequestRecipientIdentityView models a view of a responder to a request of recipient identity

func (*RespondRequestRecipientIdentityView) Call 

func (s *RespondRequestRecipientIdentityView) Call(context view.Context) (interface{}, error)

Call does the following: 1. Reads a first message from the context's session 2. Unmarshall the message into rr = RecipientRequest 3. If the identity to send back is not set, it is set to fabric.GetFabricNetworkService(context, rr.Network).IdentityProvider().DefaultIdentity() 4. Send back marshalled RecipientData struct

type Serializable 

type Serializable interface {
	Bytes() ([]byte, error)
}

type ServiceOption 

type ServiceOption func(*ServiceOptions) error

ServiceOption models an option

func WithChannel 

func WithChannel(channel string) ServiceOption

WithChannel is a ServiceOption to set the channel

func WithIdentity 

func WithIdentity(identity string) ServiceOption

WithIdentity is a ServiceOption to set the identity

func WithNetwork 

func WithNetwork(network string) ServiceOption

WithNetwork is a ServiceOption to set the network

type ServiceOptions 

type ServiceOptions struct {
	// Network is the name of the network to use
	Network string
	// Channel is the name of the channel to use
	Channel string
	// Identity is the name of the identity to use
	Identity string
}

ServiceOptions defines the options for the state service

func CompileServiceOptions 

func CompileServiceOptions(opts ...ServiceOption) (*ServiceOptions, error)

CompileServiceOptions compiles the service options

type State 

type State interface {
	SetFromBytes(raw []byte) error
}

type Transaction 

type Transaction struct {
	*endorser.Transaction
	*Namespace
}

func NewAnonymousTransaction 

func NewAnonymousTransaction(context view.Context) (*Transaction, error)

NewAnonymousTransaction returns a new instance of a state-based transaction that embeds a single namespace and is signed by an anonymous identity

func NewTransaction 

func NewTransaction(context view.Context) (*Transaction, error)

NewTransaction returns a new instance of a state-based transaction that embeds a single namespace.

func NewTransactionFromBytes 

func NewTransactionFromBytes(context view.Context, raw []byte) (*Transaction, error)

func ReceiveTransaction 

func ReceiveTransaction(context view.Context) (*Transaction, error)

ReceiveTransaction runs the receiveTransactionView that expects on the context's session a byte representation of a state transaction.

func ReceiveTransactionFrom 

func ReceiveTransactionFrom(context view.Context, party view.Identity) (*Transaction, error)

func SendAndReceiveTransaction 

func SendAndReceiveTransaction(context view.Context, tx *Transaction, party view.Identity) (*Transaction, error)

func SendBackAndReceiveTransaction 

func SendBackAndReceiveTransaction(context view.Context, tx *Transaction) (*Transaction, error)

func Wrap 

func Wrap(tx *endorser.Transaction) (*Transaction, error)

type TxTransientStore 

type TxTransientStore interface {
	SetTransient(key string, raw []byte) error
	GetTransient(key string) []byte
}

type Unmarshaller 

type Unmarshaller interface {
	Unmarshal(data []byte, v interface{}) error
}

type Vault 

type Vault interface {
	// GetState loads the state identified by the tuple [namespace, id] into the passed state reference.
	GetState(namespace string, id string, state interface{}) error

	GetStateCertification(namespace string, key string) ([]byte, error)

	GetStateByPartialCompositeID(ns string, prefix string, attrs []string) (QueryIteratorInterface, error)
}

Vault models a container of states

func GetVault 

func GetVault(ctx view2.ServiceProvider) Vault

func GetVaultForChannel 

func GetVaultForChannel(ctx view2.ServiceProvider, channel string) Vault

type VaultService 

type VaultService interface {
	// Vault returns the world state for the passed channel.
	Vault(network string, channel string) (Vault, error)
}

VaultService models a vault instance provider

func GetVaultService 

func GetVaultService(ctx view2.ServiceProvider) VaultService

type ViewManager 

type ViewManager interface {
	InitiateView(view view.View) (interface{}, error)
}

Source Files

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Directories

Path Synopsis
cc
query Module
api
ownable

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