139 lines
2.6 KiB
Go
139 lines
2.6 KiB
Go
package sd
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import (
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"context"
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"io"
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"github.com/go-gost/core/logger"
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"github.com/go-gost/core/sd"
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"github.com/go-gost/plugin/sd/proto"
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"github.com/go-gost/x/internal/plugin"
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"google.golang.org/grpc"
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)
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type grpcPlugin struct {
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conn grpc.ClientConnInterface
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client proto.SDClient
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log logger.Logger
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}
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// NewGRPCPlugin creates an SD plugin based on gRPC.
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func NewGRPCPlugin(name string, addr string, opts ...plugin.Option) sd.SD {
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var options plugin.Options
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for _, opt := range opts {
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opt(&options)
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}
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log := logger.Default().WithFields(map[string]any{
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"kind": "sd",
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"sd": name,
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})
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conn, err := plugin.NewGRPCConn(addr, &options)
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if err != nil {
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log.Error(err)
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}
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p := &grpcPlugin{
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conn: conn,
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log: log,
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}
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if conn != nil {
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p.client = proto.NewSDClient(conn)
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}
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return p
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}
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func (p *grpcPlugin) Register(ctx context.Context, service *sd.Service, opts ...sd.Option) error {
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if p.client == nil {
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return nil
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}
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_, err := p.client.Register(ctx,
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&proto.RegisterRequest{
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Service: &proto.Service{
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Id: service.ID,
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Name: service.Name,
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Node: service.Node,
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Network: service.Network,
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Address: service.Address,
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},
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})
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if err != nil {
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p.log.Error(err)
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return err
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}
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return nil
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}
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func (p *grpcPlugin) Deregister(ctx context.Context, service *sd.Service) error {
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if p.client == nil {
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return nil
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}
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_, err := p.client.Deregister(ctx, &proto.DeregisterRequest{
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Service: &proto.Service{
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Id: service.ID,
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Name: service.Name,
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Node: service.Node,
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Network: service.Network,
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Address: service.Address,
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},
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})
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return err
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}
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func (p *grpcPlugin) Renew(ctx context.Context, service *sd.Service) error {
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if p.client == nil {
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return nil
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}
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_, err := p.client.Renew(ctx, &proto.RenewRequest{
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Service: &proto.Service{
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Id: service.ID,
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Name: service.Name,
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Node: service.Node,
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Network: service.Network,
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Address: service.Address,
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},
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})
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return err
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}
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func (p *grpcPlugin) Get(ctx context.Context, name string) ([]*sd.Service, error) {
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if p.client == nil {
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return nil, nil
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}
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r, err := p.client.Get(ctx, &proto.GetServiceRequest{
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Name: name,
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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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var services []*sd.Service
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for _, v := range r.Services {
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if v == nil {
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continue
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}
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services = append(services, &sd.Service{
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Node: v.Node,
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Name: v.Name,
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Network: v.Network,
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Address: v.Address,
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})
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}
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return services, nil
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}
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func (p *grpcPlugin) Close() error {
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if p.conn == nil {
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return nil
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}
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if closer, ok := p.conn.(io.Closer); ok {
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return closer.Close()
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}
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return nil
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}
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