(shenyu) branch master updated: fix: trigger refresh for discovery upstream data subscribers when data is empty and add unit test (#6957)

[liuhongyu]

This is an automated email from the ASF dual-hosted git repository.

Aias00 pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/shenyu.git


The following commit(s) were added to refs/heads/master by this push:
     new 5364219335 fix: trigger refresh for discovery upstream data 
subscribers when data is empty and add unit test (#6957)
5364219335 is described below

commit 53642193351fd505bdea551284f2c5e157f417dc
Author: Limbo <yyk...@qq.com>
AuthorDate: Sun Aug 23 15:54:23 2026 +0800

    fix: trigger refresh for discovery upstream data subscribers when data is 
empty and add unit test (#6957)
    
    Co-authored-by: aias00 <liuhon...@apache.org>
---
 .../http/refresh/DiscoveryUpstreamDataRefresh.java |  3 +-
 .../refresh/DiscoveryUpstreamDataRefreshTest.java  | 39 ++++++++++++++++++++++
 2 files changed, 41 insertions(+), 1 deletion(-)

diff --git 
a/shenyu-sync-data-center/shenyu-sync-data-http/src/main/java/org/apache/shenyu/sync/data/http/refresh/DiscoveryUpstreamDataRefresh.java
 
b/shenyu-sync-data-center/shenyu-sync-data-http/src/main/java/org/apache/shenyu/sync/data/http/refresh/DiscoveryUpstreamDataRefresh.java
index 3ee22a1fc0..6887412461 100644
--- 
a/shenyu-sync-data-center/shenyu-sync-data-http/src/main/java/org/apache/shenyu/sync/data/http/refresh/DiscoveryUpstreamDataRefresh.java
+++ 
b/shenyu-sync-data-center/shenyu-sync-data-http/src/main/java/org/apache/shenyu/sync/data/http/refresh/DiscoveryUpstreamDataRefresh.java
@@ -54,7 +54,8 @@ public class DiscoveryUpstreamDataRefresh extends 
AbstractDataRefresh<DiscoveryS
     @Override
     protected void refresh(final List<DiscoverySyncData> data) {
         if (CollectionUtils.isEmpty(data)) {
-            LOG.info("clear all plugin data cache");
+            LOG.info("clear all discovery upstream data cache");
+            
discoveryUpstreamDataSubscribers.forEach(DiscoveryUpstreamDataSubscriber::refresh);
             return;
         }
         data.forEach(d -> discoveryUpstreamDataSubscribers.forEach(dus -> 
dus.onSubscribe(d)));
diff --git 
a/shenyu-sync-data-center/shenyu-sync-data-http/src/test/java/org/apache/shenyu/sync/data/http/refresh/DiscoveryUpstreamDataRefreshTest.java
 
b/shenyu-sync-data-center/shenyu-sync-data-http/src/test/java/org/apache/shenyu/sync/data/http/refresh/DiscoveryUpstreamDataRefreshTest.java
new file mode 100644
index 0000000000..a58bd4605e
--- /dev/null
+++ 
b/shenyu-sync-data-center/shenyu-sync-data-http/src/test/java/org/apache/shenyu/sync/data/http/refresh/DiscoveryUpstreamDataRefreshTest.java
@@ -0,0 +1,39 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.shenyu.sync.data.http.refresh;
+
+import org.apache.shenyu.sync.data.api.DiscoveryUpstreamDataSubscriber;
+import org.junit.jupiter.api.Test;
+
+import java.util.Collections;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+public final class DiscoveryUpstreamDataRefreshTest {
+
+    @Test
+    public void testRefreshWithEmptyData() {
+        DiscoveryUpstreamDataSubscriber subscriber = 
mock(DiscoveryUpstreamDataSubscriber.class);
+        DiscoveryUpstreamDataRefresh dataRefresh = new 
DiscoveryUpstreamDataRefresh(Collections.singletonList(subscriber));
+
+        dataRefresh.refresh(Collections.emptyList());
+
+        verify(subscriber).refresh();
+    }
+}