refactor flags per user

service/src/main/java/com/telephoners/krakyournet/ctf/repositories/TasksRepository.java

@@ -56,18 +56,14 @@ public class TasksRepository extends Repository<Task>
                 .asList();
     }
 
-    //todo: refactor?
-    public Map<List<String>, Integer> getUserFlagsHashes(String username)
+    public Map<Integer, List<String>> getUserFlagsHashes(String username)
     {
-        return this.getAll().stream()
+        return getAll().stream()
                 .collect(Collectors.toMap(
-                        task -> {
-                            List<String> collect = task.getFlags().stream()
+                        Task::getLevel,
+                        task -> task.getFlags().stream()
                                 .map(flag -> calculateHashValue(username, flag.getValue()))
-                                    .collect(Collectors.toList());
-                            return collect;
-                        },
-                        Task::getLevel
+                                .collect(Collectors.toList())
                 ));
     }
 

service/src/main/java/com/telephoners/krakyournet/ctf/resources/TasksResource.java

@@ -4,7 +4,6 @@ import com.telephoners.krakyournet.ctf.beans.User;
 import com.telephoners.krakyournet.ctf.beans.tasks.Task;
 import com.telephoners.krakyournet.ctf.repositories.TasksRepository;
 import io.dropwizard.auth.Auth;
-import org.apache.commons.collections.MapUtils;
 
 import javax.inject.Inject;
 import javax.inject.Singleton;
@@ -15,7 +14,6 @@ import javax.ws.rs.Produces;
 import javax.ws.rs.core.MediaType;
 import javax.ws.rs.core.Response;
 import java.util.List;
-import java.util.Map;
 
 @Singleton
 @Path(value = "/tasks")
@@ -41,8 +39,9 @@ public class TasksResource
     public Response getUserFlags(@Auth User user, final @PathParam("username") String username)
     {
         if (user.isAdmin()) {
-            Map<List<String>, Integer> userFlagsHashes = tasksRepository.getUserFlagsHashes(username);
-            return Response.ok().entity(MapUtils.invertMap(userFlagsHashes)).build();
+            return Response.ok()
+                    .entity(tasksRepository.getUserFlagsHashes(username))
+                    .build();
         }
         return Response.status(Response.Status.UNAUTHORIZED).build();
     }