diff --git a/ShadowsocksX-NG/HTTPUserProxy.swift b/ShadowsocksX-NG/HTTPUserProxy.swift
index cfc4c15b..6cb19e46 100644
--- a/ShadowsocksX-NG/HTTPUserProxy.swift
+++ b/ShadowsocksX-NG/HTTPUserProxy.swift
@@ -12,7 +12,7 @@ import GCDWebServer
 class HTTPUserProxy{
     static let shard = HTTPUserProxy()
     
-    let adapter = APIAdapter()
+    let adapter = AppFacade()
     
     let server = GCDWebServer()
     let api_port:UInt = 9528
@@ -183,10 +183,10 @@ class HTTPUserProxy{
     }
 }
 
-class APIAdapter {
-    let SerMgr = ServerProfileManager.instance
-    let defaults = UserDefaults.standard
-    let appdeleget = NSApplication.shared.delegate as! AppDelegate
+class AppFacade {
+    private let SerMgr = ServerProfileManager.instance
+    private let defaults = UserDefaults.standard
+    private let appdeleget = NSApplication.shared.delegate as! AppDelegate
     
     func getStatus()->Bool {
         return self.defaults.bool(forKey: "ShadowsocksOn");