Delete chaincode_example05.go

hyperledger/chaincode_example05.go

-/*
-	author:swb
-	emial:swbsin@163.com
-	MIT License
-*/
-
-package main
-
-import (
-	"errors"
-	"fmt"
-	"strconv"
-	"crypto/md5"
-	"crypto/rand"
-	"encoding/json"
-	"encoding/base64"
-	"encoding/hex"
-	"io"
-	"github.com/hyperledger/fabric/core/chaincode/shim"
-)
-
-type SimpleChaincode struct {
-}
-
-var homeNo int = 0
-var transactionId int = 0
-
-type Home struct{
-	Address string
-	Energy int
-	Money int
-	Id int
-	Status int
-	PriKey string
-	PubKey string
-}
-
-type Transaction struct{
-	BuyerAddress string
-	BuyerAddressSign string
-	SellerAddress string
-	SellerAddressSign string
-	Energy int
-	Money int
-	Id int
-	Time string
-}
-
-func (t *SimpleChaincode) Init(stub *shim.ChaincodeStub, function string, args []string) ([]byte, error) {
-	if len(args) != 0 {
-		return nil, errors.New("Incorrect number of arguments. Expecting 0")
-	}
-	return nil,nil
-}
-
-func (t *SimpleChaincode) Invoke(stub *shim.ChaincodeStub, function string, args []string) ([]byte, error) {
-	if function == "createUser"{
-		return t.createUser(stub,args)
-	}
-	return nil,errors.New("Received unknown function invocation")
-}
-
-func (t *SimpleChaincode) Query(stub *shim.ChaincodeStub, function string, args []string) ([]byte, error) {
-	if function == "getHomeByAddress"{
-		if len(args) != 1{
-			return nil, errors.New("Incorrect number of arguments. Expecting 1")
-		}
-		_,homeBytes,err := getHomeByAddress(stub,args[0])
-		if err != nil {
-				fmt.Println("Error get home")
-				return nil, err
-			}
-		return homeBytes,nil
-	}
-	return nil,errors.New("Received unknown function invocation")
-}
-
-func main() {
-	err := shim.Start(new(SimpleChaincode))
-	if err != nil {
-		fmt.Printf("Error starting Simple chaincode: %s", err)
-	}
-}
-
-//生成Address
-func GetAddress() (string,string,string) {
-	var address,priKey,pubKey string
-	b := make([]byte, 48)
-
-	if _, err := io.ReadFull(rand.Reader, b); err != nil {
-		return "","",""
-	}
-
-	h := md5.New()
-	h.Write([]byte(base64.URLEncoding.EncodeToString(b)))
-
-	address = hex.EncodeToString(h.Sum(nil))
-	priKey = address+"1"
-	pubKey = address+"2"
-
-	return address,priKey,pubKey
-}
-
-
-func (t *SimpleChaincode) createUser(stub *shim.ChaincodeStub, args []string) ([]byte, error) {
-	var energy , money int
-	var err error
-	var homeBytes []byte
-	if len(args) != 2 {
-		return nil, errors.New("Incorrect number of arguments. Expecting 2")
-	}
-	address,priKey,pubKey := GetAddress()
-	energy ,err = strconv.Atoi(args[0])
-	if err !=nil{
-		return nil,errors.New("want Integer number")
-	}
-	money , err = strconv.Atoi(args[1])
-	if err != nil{
-		return nil,errors.New("want Integer number")
-	}
-	home :=Home{Address:address,Energy:energy,Money:money,Id:homeNo,Status:1,PriKey:priKey,PubKey:pubKey}
-	err = writeHome(stub,home)
-	if err != nil {
-		return nil, errors.New("write Error" + err.Error())
-	}
-	homeBytes,err = json.Marshal(&home)
-	if err!= nil{
-		return nil,errors.New("Error retrieve")
-	}
-	return homeBytes, nil
-}
-
-func writeHome(stub *shim.ChaincodeStub,home Home) (error) {
-	homeBytes, err := json.Marshal(&home)
-	if err != nil {
-		return err
-	}
-	err = stub.PutState(home.Address, homeBytes)
-	if err != nil {
-		return errors.New("PutState Error" + err.Error())
-	}
-	return nil
-}
-
-func getHomeByAddress(stub *shim.ChaincodeStub, address string) (Home,[]byte, error) {
-	var home Home
-	homeBytes,err := stub.GetState(address)
-	if err != nil {
-		fmt.Println("Error retrieving home")
-	}
-	err = json.Unmarshal(homeBytes, &home)
-	if err != nil {
-		fmt.Println("Error unmarshalling home")
-	}
-	return home,homeBytes, nil
-}
-
-func getHomesByEnergyline(stub *shim.ChaincodeStub, address string)([]Home,[]byte,error){
-	return nil,nil,nil	
-}
-
-func buyByAddress(stub *shim.ChaincodeStub,args[] string)（[]byte,error）{
-
-}
\ No newline at end of file