micro/registry/noop.go

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package registry
import (
"context"
)
type noopRegistry struct {
opts Options
}
// Init initialize registry
func (n *noopRegistry) Init(opts ...Option) error {
for _, o := range opts {
o(&n.opts)
}
return nil
}
// Options returns options struct
func (n *noopRegistry) Options() Options {
return n.opts
}
// Connect opens connection to registry
func (n *noopRegistry) Connect(ctx context.Context) error {
return nil
}
// Disconnect close connection to registry
func (n *noopRegistry) Disconnect(ctx context.Context) error {
return nil
}
// Register registers service
func (n *noopRegistry) Register(ctx context.Context, svc *Service, opts ...RegisterOption) error {
return nil
}
// Deregister deregisters service
func (n *noopRegistry) Deregister(ctx context.Context, svc *Service, opts ...DeregisterOption) error {
return nil
}
// GetService returns servive info
func (n *noopRegistry) GetService(ctx context.Context, name string, opts ...GetOption) ([]*Service, error) {
return []*Service{}, nil
}
// ListServices listing services
func (n *noopRegistry) ListServices(ctx context.Context, opts ...ListOption) ([]*Service, error) {
return []*Service{}, nil
}
// Watch is used to watch for service changes
func (n *noopRegistry) Watch(ctx context.Context, opts ...WatchOption) (Watcher, error) {
return &noopWatcher{done: make(chan struct{}), opts: NewWatchOptions(opts...)}, nil
}
// String returns registry string representation
func (n *noopRegistry) String() string {
return "noop"
}
type noopWatcher struct {
opts WatchOptions
done chan struct{}
}
func (n *noopWatcher) Next() (*Result, error) {
<-n.done
return nil, ErrWatcherStopped
}
func (n *noopWatcher) Stop() {
close(n.done)
}
// NewRegistry returns a new noop registry
func NewRegistry(opts ...Option) Registry {
return &noopRegistry{opts: NewOptions(opts...)}
}