package director import ( "forge.cadoles.com/Cadoles/go-proxy" "forge.cadoles.com/cadoles/bouncer/internal/store" ) type MiddlewareLayer interface { Middleware(layer *store.Layer) proxy.Middleware } type RequestTransformerLayer interface { RequestTransformer(layer *store.Layer) proxy.RequestTransformer } type ResponseTransformerLayer interface { ResponseTransformer(layer *store.Layer) proxy.ResponseTransformer } type LayerRegistry struct { index map[store.LayerType]Layer } func (r *LayerRegistry) GetLayer(layerType store.LayerType) (Layer, bool) { layer, exists := r.index[layerType] if !exists { return nil, false } return layer, true } func (r *LayerRegistry) getLayerAsAny(layerType store.LayerType) (any, bool) { return r.GetLayer(layerType) } func (r *LayerRegistry) GetMiddleware(layerType store.LayerType, name store.LayerName) (MiddlewareLayer, bool) { layer, exists := r.getLayerAsAny(layerType) if !exists { return nil, false } middleware, ok := layer.(MiddlewareLayer) if !ok { return nil, false } return middleware, true } func (r *LayerRegistry) GetResponseTransformer(layerType store.LayerType) (ResponseTransformerLayer, bool) { layer, exists := r.getLayerAsAny(layerType) if !exists { return nil, false } transformer, ok := layer.(ResponseTransformerLayer) if !ok { return nil, false } return transformer, true } func (r *LayerRegistry) GetRequestTransformer(layerType store.LayerType) (RequestTransformerLayer, bool) { layer, exists := r.getLayerAsAny(layerType) if !exists { return nil, false } transformer, ok := layer.(RequestTransformerLayer) if !ok { return nil, false } return transformer, true } func (r *LayerRegistry) Load(layers ...Layer) { index := make(map[store.LayerType]Layer) for _, l := range layers { layerType := l.LayerType() index[layerType] = l } r.index = index } func NewLayerRegistry(layers ...Layer) *LayerRegistry { registry := &LayerRegistry{ index: make(map[store.LayerType]Layer), } registry.Load(layers...) return registry }