101 lines
2.2 KiB
Go
101 lines
2.2 KiB
Go
package hyper
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import (
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"context"
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"git.solsynth.dev/hydrogen/dealer/pkg/proto"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials/insecure"
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health "google.golang.org/grpc/health/grpc_health_v1"
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"time"
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_ "github.com/mbobakov/grpc-consul-resolver"
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)
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type HyperConn struct {
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Addr string
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Info *proto.ServiceInfo
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dealerConn *grpc.ClientConn
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cacheGrpcConn map[string]*grpc.ClientConn
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}
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func NewHyperConn(addr string, info *proto.ServiceInfo) (*HyperConn, error) {
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conn, err := grpc.NewClient(
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addr,
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grpc.WithTransportCredentials(insecure.NewCredentials()),
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)
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if err != nil {
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return nil, err
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}
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return &HyperConn{
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Addr: addr,
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Info: info,
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dealerConn: conn,
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cacheGrpcConn: make(map[string]*grpc.ClientConn),
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}, nil
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}
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func (v *HyperConn) RegisterService() error {
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dir := proto.NewServiceDirectoryClient(v.dealerConn)
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_, err := dir.AddService(context.Background(), v.Info)
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return err
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}
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func (v *HyperConn) KeepRegisterService() error {
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err := v.RegisterService()
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if err != nil {
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return err
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}
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for {
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time.Sleep(5 * time.Second)
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client := health.NewHealthClient(v.dealerConn)
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if _, err := client.Check(context.Background(), &health.HealthCheckRequest{}); err != nil {
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if v.KeepRegisterService() == nil {
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break
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}
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}
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}
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return nil
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}
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func (v *HyperConn) GetDealerGrpcConn() *grpc.ClientConn {
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return v.dealerConn
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}
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func (v *HyperConn) GetServiceGrpcConn(t string) (*grpc.ClientConn, error) {
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if val, ok := v.cacheGrpcConn[t]; ok {
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ctx, cancel := context.WithTimeout(context.Background(), time.Second*10)
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defer cancel()
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if _, err := health.NewHealthClient(val).Check(ctx, &health.HealthCheckRequest{
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Service: t,
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}); err == nil {
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return val, nil
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} else {
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delete(v.cacheGrpcConn, t)
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}
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}
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ctx, cancel := context.WithTimeout(context.Background(), time.Second*5)
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defer cancel()
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out, err := proto.NewServiceDirectoryClient(v.dealerConn).GetService(ctx, &proto.GetServiceRequest{
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Type: &t,
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})
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if err != nil {
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return nil, err
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}
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conn, err := grpc.NewClient(
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out.GetData().GetGrpcAddr(),
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grpc.WithTransportCredentials(insecure.NewCredentials()),
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)
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if err == nil {
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v.cacheGrpcConn[t] = conn
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}
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return conn, err
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}
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