Hyperledger Fabric 1.3正式版新特性

SetStateValidationParameter(key string, ep []byte) error
GetStateValidationParameter(key string) ([]byte, error)

SetPrivateDataValidationParameter(collection, key string, ep []byte) error
GetPrivateDataValidationParameter(collection, key string) ([]byte, error)

type KeyEndorsementPolicy interface {
    // Policy returns the endorsement policy as bytes
    Policy() ([]byte, error)

    // AddOrgs adds the specified orgs to the list of orgs that are required
    // to endorse
    AddOrgs(roleType RoleType, organizations ...string) error

    // DelOrgs delete the specified channel orgs from the existing key-level endorsement
    // policy for this KVS key. If any org is not present, an error will be returned.
    DelOrgs([]string) error

    // DelAllOrgs removes any key-level endorsement policy from this KVS key.
    DelAllOrgs() error

    // ListOrgs returns an array of channel orgs that are required to endorse changes
    ListOrgs() ([]string, error)
}

func (t *SimpleChaincode) getMarblesByRangeWithPagination(stub shim.ChaincodeStubInterface, args []string) pb.Response {

	if len(args) < 4 {
		return shim.Error("Incorrect number of arguments. Expecting 4")
	}

	startKey := args[0]
	endKey := args[1]
	//return type of ParseInt is int64
	pageSize, err := strconv.ParseInt(args[2], 10, 32)
	if err != nil {
		return shim.Error(err.Error())
	}
	bookmark := args[3]

	resultsIterator, responseMetadata, err := stub.GetStateByRangeWithPagination(startKey, endKey, int32(pageSize), bookmark)
	if err != nil {
		return shim.Error(err.Error())
	}
	defer resultsIterator.Close()

	buffer, err := constructQueryResponseFromIterator(resultsIterator)
	if err != nil {
		return shim.Error(err.Error())
	}

	bufferWithPaginationInfo := addPaginationMetadataToQueryResults(buffer, responseMetadata)

	fmt.Printf("- getMarblesByRange queryResult:\n%s\n", bufferWithPaginationInfo.String())

	return shim.Success(buffer.Bytes())
}

func getQueryResultForQueryStringWithPagination(stub shim.ChaincodeStubInterface, queryString string, pageSize int32, bookmark string) ([]byte, error) {

	fmt.Printf("- getQueryResultForQueryString queryString:\n%s\n", queryString)

	resultsIterator, responseMetadata, err := stub.GetQueryResultWithPagination(queryString, pageSize, bookmark)
	if err != nil {
		return nil, err
	}
	defer resultsIterator.Close()

	buffer, err := constructQueryResponseFromIterator(resultsIterator)
	if err != nil {
		return nil, err
	}

	bufferWithPaginationInfo := addPaginationMetadataToQueryResults(buffer, responseMetadata)

	fmt.Printf("- getQueryResultForQueryString queryResult:\n%s\n", bufferWithPaginationInfo.String())

	return buffer.Bytes(), nil
}