Add RegistryReader interface for read-only registry

http/handler/api/session.go

@@ -13,11 +13,11 @@ import (
 
 // The SessionHandler type provides handlers to retrieve session information
 type SessionHandler struct {
-	registry session.Registry
+	registry session.RegistryReader
 }
 
 // NewSession returns a new Session type. You have to provide a session registry.
-func NewSession(registry session.Registry) *SessionHandler {
+func NewSession(registry session.RegistryReader) *SessionHandler {
 	return &SessionHandler{
 		registry: registry,
 	}

http/handler/api/widget.go

@@ -13,13 +13,13 @@ import (
 
 type WidgetConfig struct {
 	Restream restream.Restreamer
-	Registry session.Registry
+	Registry session.RegistryReader
 }
 
 // The WidgetHandler type provides handlers for the widget API
 type WidgetHandler struct {
 	restream restream.Restreamer
-	registry session.Registry
+	registry session.RegistryReader
 }
 
 // NewWidget return a new Widget type

http/server.go

@@ -89,7 +89,7 @@ type Config struct {
 	JWT           jwt.JWT
 	Config        config.Store
 	Cache         cache.Cacher
-	Sessions      session.Registry
+	Sessions      session.RegistryReader
 	Router        router.Router
 	ReadOnly      bool
 }

monitor/session.go

@@ -7,7 +7,7 @@ import (
 
 type sessionCollector struct {
 	prefix            string
-	r                 session.Registry
+	r                 session.RegistryReader
 	collectors        []string
 	totalDescr        *metric.Description
 	limitDescr        *metric.Description
@@ -20,7 +20,7 @@ type sessionCollector struct {
 	maxRxBitrateDescr *metric.Description
 }
 
-func NewSessionCollector(r session.Registry, collectors []string) metric.Collector {
+func NewSessionCollector(r session.RegistryReader, collectors []string) metric.Collector {
 	c := &sessionCollector{
 		prefix:     "session",
 		r:          r,

session/registry.go

@@ -22,6 +22,20 @@ type Config struct {
 	Logger log.Logger
 }
 
+type RegistryReader interface {
+	// Collectors returns an array of all registered IDs
+	Collectors() []string
+
+	// Collector returns the collector with the ID, or nil if the ID is not registered
+	Collector(id string) Collector
+
+	// Summary returns the summary from a collector with the ID, or an empty summary if the ID is not registered
+	Summary(id string) Summary
+
+	// Active returns the active sessions from a collector with the ID, or an empty list if the ID is not registered
+	Active(id string) []Session
+}
+
 // The Registry interface
 type Registry interface {
 	// Register returns a new collector from conf and registers it under the id and error is nil. In case of error
@@ -34,17 +48,7 @@ type Registry interface {
 	// UnregisterAll unregisters al registered collectors
 	UnregisterAll()
 
-	// Collectors returns an array of all registered IDs
+	RegistryReader
-	Collectors() []string
-
-	// Collector returns the collector with the ID, or nil if the ID is not registered
-	Collector(id string) Collector
-
-	// Summary returns the summary from a collector with the ID, or an empty summary if the ID is not registered
-	Summary(id string) Summary
-
-	// Active returns the active sessions from a collector with the ID, or an empty list if the ID is not registered
-	Active(id string) []Session
 }
 
 type registry struct {