hide space implementations from interfaces

app/controller/controller.go

@@ -0,0 +1,31 @@
+package controller
+
+import (
+	"github.com/v2ray/v2ray-core/app"
+	"github.com/v2ray/v2ray-core/app/internal"
+)
+
+// A SpaceController is supposed to be used by a shell to create Spaces. It should not be used
+// directly by proxies.
+type SpaceController struct {
+	packetDispatcher internal.PacketDispatcherWithContext
+	dnsCache         internal.DnsCacheWithContext
+}
+
+func New() *SpaceController {
+	return new(SpaceController)
+}
+
+func (this *SpaceController) Bind(object interface{}) {
+	if packetDispatcher, ok := object.(internal.PacketDispatcherWithContext); ok {
+		this.packetDispatcher = packetDispatcher
+	}
+
+	if dnsCache, ok := object.(internal.DnsCacheWithContext); ok {
+		this.dnsCache = dnsCache
+	}
+}
+
+func (this *SpaceController) ForContext(tag string) app.Space {
+	return internal.NewSpace(tag, this.packetDispatcher, this.dnsCache)
+}