55 lines
993 B
Go
55 lines
993 B
Go
package protocol
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import (
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"context"
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"github.com/pkg/errors"
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)
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type Registry struct {
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protocols map[Identifier]Protocol
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}
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func (r *Registry) Register(protocol Protocol) {
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r.protocols[protocol.Identifier()] = protocol
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}
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func (r *Registry) Availables(ctx context.Context, addr string) ([]Protocol, error) {
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availables := make([]Protocol, 0)
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for _, proto := range r.protocols {
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available, err := proto.Available(ctx, addr)
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if err != nil {
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return nil, errors.WithStack(err)
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}
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if !available {
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continue
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}
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availables = append(availables, proto)
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}
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return availables, nil
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}
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func NewRegistry() *Registry {
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return &Registry{
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protocols: make(map[Identifier]Protocol),
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}
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}
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var defaultRegistry = NewRegistry()
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func DefaultRegistry() *Registry {
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return defaultRegistry
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}
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func Register(protocol Protocol) {
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defaultRegistry.Register(protocol)
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}
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func Availables(ctx context.Context, addr string) ([]Protocol, error) {
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return defaultRegistry.Availables(ctx, addr)
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}
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