ginuerzh
acce86c0e4
Log close errors in Unregister instead of silently discarding them. Add doc comments to all exported symbols across 20 registry files. Add comprehensive tests covering base registry, all wrapper types, hot-reload delegation, nil-fallback semantics, and global accessors.
57 lines
1.2 KiB
Go
57 lines
1.2 KiB
Go
package registry
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import (
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"context"
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"io"
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"github.com/go-gost/core/observer"
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)
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// observerRegistry implements a hot-reload-safe registry for observer.Observer.
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type observerRegistry struct {
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registry[observer.Observer]
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}
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// Register stores an Observer under the given name.
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func (r *observerRegistry) Register(name string, v observer.Observer) error {
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return r.registry.Register(name, v)
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}
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// Get returns a wrapper that delegates to the currently registered Observer.
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// Returns nil if name is empty.
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func (r *observerRegistry) Get(name string) observer.Observer {
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if name != "" {
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return &observerWrapper{name: name, r: r}
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}
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return nil
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}
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func (r *observerRegistry) get(name string) observer.Observer {
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return r.registry.Get(name)
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}
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type observerWrapper struct {
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name string
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r *observerRegistry
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}
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func (w *observerWrapper) Observe(ctx context.Context, events []observer.Event, opts ...observer.Option) error {
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v := w.r.get(w.name)
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if v == nil {
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return nil
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}
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return v.Observe(ctx, events, opts...)
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}
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// Close closes the underlying observer if it implements io.Closer.
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func (w *observerWrapper) Close() error {
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v := w.r.get(w.name)
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if v == nil {
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return nil
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}
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if closer, ok := v.(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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