1 files changed, 7 insertions, 11 deletions
diff --git a/src/main/java/com/juick/www/api/SystemActivity.java b/src/main/java/com/juick/www/api/SystemActivity.java
index 5a7c810f..36bc3ad4 100644
--- a/src/main/java/com/juick/www/api/SystemActivity.java
+++ b/src/main/java/com/juick/www/api/SystemActivity.java
@@ -24,9 +24,11 @@ import java.util.Collections;
 import java.util.List;
 
 public class SystemActivity {
+    private SystemActivity(ActivityType type) {
+        this.type = type;
+    }
     public static SystemActivity like(User from, Message message, List<User> subscribers) {
-        var like = new SystemActivity();
-        like.setType(ActivityType.like);
+        var like = new SystemActivity(ActivityType.like);
         like.setFrom(from);
         like.setMessage(message);
         like.setTo(subscribers);
@@ -34,8 +36,7 @@ public class SystemActivity {
     }
 
     public static SystemActivity message(User from, Message message, List<User> subscribers) {
-        var msg = new SystemActivity();
-        msg.setType(ActivityType.message);
+        var msg = new SystemActivity(ActivityType.message);
         msg.setFrom(from);
         msg.setMessage(message);
         msg.setTo(subscribers);
@@ -43,8 +44,7 @@ public class SystemActivity {
     }
 
     public static SystemActivity read(User from, Message message) {
-        var read = new SystemActivity();
-        read.setType(ActivityType.message);
+        var read = new SystemActivity(ActivityType.message);
         read.setFrom(from);
         read.setTo(Collections.emptyList());
         var msg = new Message();
@@ -57,7 +57,7 @@ public class SystemActivity {
     }
 
     public static SystemActivity follow(User from, List<User> to) {
-        var follow = new SystemActivity();
+        var follow = new SystemActivity(ActivityType.follow);
         follow.setFrom(from);
         follow.setTo(to);
         return follow;
@@ -78,10 +78,6 @@ public class SystemActivity {
         return type;
     }
 
-    public void setType(ActivityType type) {
-        this.type = type;
-    }
-
     public User getFrom() {
         return from;
     }