68 lines
2.1 KiB
Go
68 lines
2.1 KiB
Go
package examples
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import (
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"context"
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"fmt"
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"net"
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"github.com/yedf/dtm/dtmcli"
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dtmgrpc "github.com/yedf/dtm/dtmgrpc"
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grpc "google.golang.org/grpc"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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"google.golang.org/protobuf/types/known/emptypb"
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)
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// BusiPb busi service grpc address
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var BusiPb string = fmt.Sprintf("localhost:%d", BusiPbPort)
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// DtmClient grpc client for dtm
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var DtmClient dtmgrpc.DtmClient = nil
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// GrpcStartup for grpc
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func GrpcStartup() {
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conn, err := grpc.Dial(DtmGrpcServer, grpc.WithInsecure(), grpc.WithBlock(), grpc.WithUnaryInterceptor(dtmgrpc.GrpcClientLog))
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dtmcli.FatalIfError(err)
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DtmClient = dtmgrpc.NewDtmClient(conn)
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dtmcli.Logf("dtm client inited")
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lis, err := net.Listen("tcp", fmt.Sprintf(":%d", BusiPbPort))
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dtmcli.FatalIfError(err)
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s := grpc.NewServer(grpc.UnaryInterceptor(dtmgrpc.GrpcServerLog))
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RegisterBusiServer(s, &busiServer{})
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dtmcli.Logf("busi grpc listening at %v", lis.Addr())
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go func() {
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err := s.Serve(lis)
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dtmcli.FatalIfError(err)
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}()
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}
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func handleGrpcBusiness(in *dtmgrpc.BusiRequest, result1 string, result2 string, busi string) error {
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res := dtmcli.OrString(result1, result2, "SUCCESS")
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dtmcli.Logf("grpc busi %s %s result: %s", busi, in.Info, res)
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if res == "SUCCESS" {
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return nil
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} else if res == "FAILURE" {
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return status.New(codes.Aborted, "user want to rollback").Err()
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}
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return status.New(codes.Internal, fmt.Sprintf("unknow result %s", res)).Err()
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}
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// busiServer is used to implement helloworld.GreeterServer.
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type busiServer struct {
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UnimplementedBusiServer
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}
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func (s *busiServer) TransIn(ctx context.Context, in *dtmgrpc.BusiRequest) (*emptypb.Empty, error) {
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req := TransReq{}
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dtmcli.MustUnmarshal(in.AppData, &req)
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return &emptypb.Empty{}, handleGrpcBusiness(in, req.TransInResult, MainSwitch.TransInResult.Fetch(), "TransIn")
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}
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func (s *busiServer) TransOut(ctx context.Context, in *dtmgrpc.BusiRequest) (*emptypb.Empty, error) {
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req := TransReq{}
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dtmcli.MustUnmarshal(in.AppData, &req)
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return &emptypb.Empty{}, handleGrpcBusiness(in, req.TransOutResult, MainSwitch.TransOutResult.Fetch(), "TransOut")
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}
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