go_study/fabric-main/internal/peer/channel/joinbysnapshotstatus.go

102 lines
3.0 KiB
Go

/*
Copyright IBM Corp. 2017 All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package channel
import (
"context"
"fmt"
"github.com/golang/protobuf/proto"
common2 "github.com/hyperledger/fabric-protos-go/common"
pb "github.com/hyperledger/fabric-protos-go/peer"
"github.com/hyperledger/fabric/core/scc/cscc"
"github.com/hyperledger/fabric/protoutil"
"github.com/spf13/cobra"
)
func joinBySnapshotStatusCmd(cf *ChannelCmdFactory) *cobra.Command {
// Set the flags on the channel start command.
return &cobra.Command{
Use: "joinbysnapshotstatus",
Short: "Query if joinbysnapshot is running for any channel",
Long: "Query if joinbysnapshot is running for any channel",
RunE: func(cmd *cobra.Command, args []string) error {
if len(args) != 0 {
return fmt.Errorf("trailing args detected: %s", args)
}
// Parsing of the command line is done so silence cmd usage
cmd.SilenceUsage = true
return joinBySnapshotStatus(cf)
},
}
}
func joinBySnapshotStatus(cf *ChannelCmdFactory) error {
var err error
if cf == nil {
cf, err = InitCmdFactory(EndorserRequired, PeerDeliverNotRequired, OrdererNotRequired)
if err != nil {
return err
}
}
client := &endorserClient{cf}
status, err := client.joinBySnapshotStatus()
if err != nil {
return err
}
if status.InProgress {
fmt.Printf("A joinbysnapshot operation is in progress for snapshot at %s\n", status.BootstrappingSnapshotDir)
} else {
fmt.Println("No joinbysnapshot operation is in progress")
}
return nil
}
func (cc *endorserClient) joinBySnapshotStatus() (*pb.JoinBySnapshotStatus, error) {
var err error
invocation := &pb.ChaincodeInvocationSpec{
ChaincodeSpec: &pb.ChaincodeSpec{
Type: pb.ChaincodeSpec_Type(pb.ChaincodeSpec_Type_value["GOLANG"]),
ChaincodeId: &pb.ChaincodeID{Name: "cscc"},
Input: &pb.ChaincodeInput{Args: [][]byte{[]byte(cscc.JoinBySnapshotStatus)}},
},
}
var prop *pb.Proposal
c, _ := cc.cf.Signer.Serialize()
prop, _, err = protoutil.CreateProposalFromCIS(common2.HeaderType_ENDORSER_TRANSACTION, "", invocation, c)
if err != nil {
return nil, fmt.Errorf("cannot create proposal, due to %s", err)
}
var signedProp *pb.SignedProposal
signedProp, err = protoutil.GetSignedProposal(prop, cc.cf.Signer)
if err != nil {
return nil, fmt.Errorf("cannot create signed proposal, due to %s", err)
}
proposalResp, err := cc.cf.EndorserClient.ProcessProposal(context.Background(), signedProp)
if err != nil {
return nil, fmt.Errorf("failed sending proposal, due to %s", err)
}
if proposalResp.Response == nil || proposalResp.Response.Status != 200 {
return nil, fmt.Errorf("received bad response, status %d: %s", proposalResp.Response.Status, proposalResp.Response.Message)
}
joinbysnapshotStatus := &pb.JoinBySnapshotStatus{}
err = proto.Unmarshal(proposalResp.Response.Payload, joinbysnapshotStatus)
if err != nil {
return nil, fmt.Errorf("cannot query joinbysnapshot status, due to %s", err)
}
return joinbysnapshotStatus, nil
}