refactoring

application/src/main/java/org/thingsboard/server/service/subscription/DefaultTbEntityDataSubscriptionService.java

@@ -245,7 +245,7 @@ public class DefaultTbEntityDataSubscriptionService implements TbEntityDataSubsc
                     public void onFailure(Throwable t) {
                         log.warn("[{}][{}] Failed to process command", finalCtx.getSessionId(), finalCtx.getCmdId(), t);
                         if (t instanceof ResultSetSizeLimitExceededException) {
-                            finalCtx.sendWsMsg(new EntityDataUpdate(finalCtx.getCmdId(), SubscriptionErrorCode.INTERNAL_ERROR.getCode(), t.getMessage()));
+                            sendError(finalCtx, t);
                         }
                     }
                 }, wsCallBackExecutor);
@@ -270,7 +270,7 @@ public class DefaultTbEntityDataSubscriptionService implements TbEntityDataSubsc
                         public void onFailure(Throwable t) {
                             log.warn("[{}][{}] Failed to process timeseries command", ctx.getSessionId(), ctx.getCmdId(), t);
                             if (t instanceof ResultSetSizeLimitExceededException) {
-                                ctx.sendWsMsg(new EntityDataUpdate(ctx.getCmdId(), SubscriptionErrorCode.INTERNAL_ERROR.getCode(), t.getMessage()));
+                                sendError(ctx, t);
                             }
                         }
                     }, wsCallBackExecutor);
@@ -283,6 +283,10 @@ public class DefaultTbEntityDataSubscriptionService implements TbEntityDataSubsc
         }
     }
 
+    private void sendError(TbEntityDataSubCtx ctx, Throwable t) {
+        ctx.sendWsMsg(new EntityDataUpdate(ctx.getCmdId(), SubscriptionErrorCode.INTERNAL_ERROR.getCode(), t.getMessage()));
+    }
+
     private void checkAndSendInitialData(@Nullable TbEntityDataSubCtx theCtx) {
         if (!theCtx.isInitialDataSent()) {
             EntityDataUpdate update = new EntityDataUpdate(theCtx.getCmdId(), theCtx.getData(), null, theCtx.getMaxEntitiesPerDataSubscription());