48 lines
1.4 KiB
Go
48 lines
1.4 KiB
Go
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//go:generate mockgen -source=$GOFILE -destination=./../../internal/mock/endpoint/handler_registry.mock.go -package=endpoint_mock
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package endpoint
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import (
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"fmt"
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)
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type Registration func(registry HandlerRegistry) error
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type HandlerRegistry interface {
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RegisterHandler(handlerRef HandlerReference, handlerProvider func() ProtocolHandler)
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AvailableHandlers() []HandlerReference
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HandlerForName(handlerRef HandlerReference) (ProtocolHandler, bool)
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}
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func NewHandlerRegistry() HandlerRegistry {
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return &handlerRegistry{
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handlers: make(map[HandlerReference]func() ProtocolHandler),
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}
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}
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type handlerRegistry struct {
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handlers map[HandlerReference]func() ProtocolHandler
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}
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func (h handlerRegistry) AvailableHandlers() (availableHandlers []HandlerReference) {
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for s := range h.handlers {
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availableHandlers = append(availableHandlers, s)
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}
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return
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}
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func (h *handlerRegistry) HandlerForName(handlerRef HandlerReference) (instance ProtocolHandler, ok bool) {
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var provider func() ProtocolHandler
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if provider, ok = h.handlers[handlerRef.ToLower()]; ok {
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instance = provider()
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}
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return
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}
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func (h *handlerRegistry) RegisterHandler(handlerRef HandlerReference, handlerProvider func() ProtocolHandler) {
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handlerRef = handlerRef.ToLower()
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if _, exists := h.handlers[handlerRef]; exists {
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panic(fmt.Sprintf("handler with name %s is already registered - there's something strange...in the neighborhood", handlerRef))
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}
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h.handlers[handlerRef] = handlerProvider
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}
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