some improvenments on user service

1 files changed, 5 insertions, 0 deletions

diff --git a/juick-server/src/main/java/com/juick/util/UserUtils.java b/juick-server/src/main/java/com/juick/util/UserUtils.java
index 611a3b15..372dd502 100644
--- a/juick-server/src/main/java/com/juick/util/UserUtils.java
+++ b/juick-server/src/main/java/com/juick/util/UserUtils.java
@@ -1,5 +1,6 @@
 package com.juick.util;
 
+import java.security.Principal;
 import java.util.Random;
 
 /**
@@ -24,4 +25,8 @@ public class UserUtils {
     public static boolean checkUserNameValid(final String uname) {
         return uname != null && uname.length() >= 2 && uname.length() <= 16 && uname.matches("[a-zA-Z0-9\\-]+");
     }
+
+    public static String getUsername(final Principal principal, final String defaultUsername) {
+        return principal == null ? defaultUsername : principal.getName();
+    }
 }