2 files changed, 5 insertions, 3 deletions
diff --git a/src/main/java/com/juick/service/UserService.java b/src/main/java/com/juick/service/UserService.java
index fbbab0ad..16d76659 100644
--- a/src/main/java/com/juick/service/UserService.java
+++ b/src/main/java/com/juick/service/UserService.java
@@ -20,6 +20,7 @@ package com.juick.service;
 import com.juick.model.Message;
 import com.juick.model.User;
 import com.juick.model.AuthResponse;
+import com.juick.util.UsernameTakenException;
 
 import javax.annotation.Nonnull;
 import java.util.Collection;
@@ -39,7 +40,7 @@ public interface UserService {
 
     String getSignUpHashByTelegramID(Long telegramId, String username);
 
-    Optional<User> createUser(String username, String password);
+    Optional<User> createUser(String username, String password) throws UsernameTakenException;
 
     Optional<User> getUserByUID(int uid);
 
diff --git a/src/main/java/com/juick/service/UserServiceImpl.java b/src/main/java/com/juick/service/UserServiceImpl.java
index 84ff1ff5..cf1c838d 100644
--- a/src/main/java/com/juick/service/UserServiceImpl.java
+++ b/src/main/java/com/juick/service/UserServiceImpl.java
@@ -21,6 +21,7 @@ import com.juick.model.Message;
 import com.juick.model.User;
 import com.juick.model.AnonymousUser;
 import com.juick.model.AuthResponse;
+import com.juick.util.UsernameTakenException;
 import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang3.RandomStringUtils;
 import org.apache.commons.lang3.StringUtils;
@@ -108,7 +109,7 @@ public class UserServiceImpl extends BaseJdbcService implements UserService {
 
     @Transactional
     @Override
-    public Optional<User> createUser(final String username, final String password) {
+    public Optional<User> createUser(final String username, final String password) throws UsernameTakenException {
         KeyHolder holder = new GeneratedKeyHolder();
         try {
             getJdbcTemplate().update(
@@ -122,7 +123,7 @@ public class UserServiceImpl extends BaseJdbcService implements UserService {
                     },
                     holder);
         } catch (DuplicateKeyException e) {
-            return Optional.empty();
+            throw new UsernameTakenException();
         }
 
         int uid = holder.getKeys().size() > 1 ? (int)holder.getKeys().get("id") : holder.getKey().intValue();