This is an automated email from the ASF dual-hosted git repository.
albumenj pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/dubbo.git
The following commit(s) were added to refs/heads/master by this push:
new 8b580d0ba0 [2.7] Fix Nacos aggregate listen (#10467)
8b580d0ba0 is described below
commit 8b580d0ba0de2e6cbce55257525465489ccd50d2
Author: Albumen Kevin <[email protected]>
AuthorDate: Tue Aug 16 16:35:47 2022 +0800
[2.7] Fix Nacos aggregate listen (#10467)
* [2.7] Fix Nacos aggregate listen
* fix empty
* rename
---
.../registry/nacos/NacosAggregateListener.java | 70 +++++++++++++++++++++
.../apache/dubbo/registry/nacos/NacosRegistry.java | 71 ++++++++++++----------
2 files changed, 109 insertions(+), 32 deletions(-)
diff --git
a/dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosAggregateListener.java
b/dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosAggregateListener.java
new file mode 100644
index 0000000000..5593acd915
--- /dev/null
+++
b/dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosAggregateListener.java
@@ -0,0 +1,70 @@
+/*
+ * 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.dubbo.registry.nacos;
+
+import org.apache.dubbo.common.utils.ConcurrentHashSet;
+import org.apache.dubbo.registry.NotifyListener;
+
+import com.alibaba.nacos.api.naming.pojo.Instance;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.stream.Collectors;
+
+public class NacosAggregateListener {
+ private final NotifyListener notifyListener;
+ private final Set<String> serviceNames = new ConcurrentHashSet<>();
+ private final Map<String, List<Instance>> serviceInstances = new
ConcurrentHashMap<>();
+
+ public NacosAggregateListener(NotifyListener notifyListener) {
+ this.notifyListener = notifyListener;
+ }
+
+ public List<Instance> saveAndAggregateAllInstances(String serviceName,
List<Instance> instances) {
+ serviceNames.add(serviceName);
+ serviceInstances.put(serviceName, instances);
+ return
serviceInstances.values().stream().flatMap(List::stream).collect(Collectors.toList());
+ }
+
+ public NotifyListener getNotifyListener() {
+ return notifyListener;
+ }
+
+ public Set<String> getServiceNames() {
+ return serviceNames;
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ if (this == o) {
+ return true;
+ }
+ if (o == null || getClass() != o.getClass()) {
+ return false;
+ }
+ NacosAggregateListener that = (NacosAggregateListener) o;
+ return Objects.equals(notifyListener, that.notifyListener) &&
Objects.equals(serviceNames, that.serviceNames) &&
Objects.equals(serviceInstances, that.serviceInstances);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(notifyListener, serviceNames, serviceInstances);
+ }
+}
diff --git
a/dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosRegistry.java
b/dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosRegistry.java
index 9987986ca2..060bf2013a 100644
---
a/dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosRegistry.java
+++
b/dubbo-registry/dubbo-registry-nacos/src/main/java/org/apache/dubbo/registry/nacos/NacosRegistry.java
@@ -34,24 +34,23 @@ import com.alibaba.nacos.api.naming.listener.EventListener;
import com.alibaba.nacos.api.naming.listener.NamingEvent;
import com.alibaba.nacos.api.naming.pojo.Instance;
import com.alibaba.nacos.api.naming.pojo.ListView;
-import com.google.common.collect.Lists;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
+import java.util.Collections;
import java.util.HashMap;
import java.util.LinkedHashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
-import java.util.concurrent.ConcurrentMap;
-import java.util.concurrent.ConcurrentHashMap;
import java.util.stream.Collectors;
-import java.util.Collections;
import static org.apache.dubbo.common.constants.CommonConstants.ANY_VALUE;
import static org.apache.dubbo.common.constants.CommonConstants.GROUP_KEY;
@@ -124,7 +123,9 @@ public class NacosRegistry extends FailbackRegistry {
private final NacosNamingServiceWrapper namingService;
- private final ConcurrentMap<URL, ConcurrentMap<NotifyListener,
EventListener>> nacosListeners = new ConcurrentHashMap<>();
+ private final ConcurrentMap<URL, ConcurrentMap<NotifyListener,
NacosAggregateListener>> originToAggregateListener = new ConcurrentHashMap<>();
+
+ private final ConcurrentMap<URL, ConcurrentMap<NacosAggregateListener,
EventListener>> nacosListeners = new ConcurrentHashMap<>();
public NacosRegistry(URL url, NacosNamingServiceWrapper namingService) {
super(url);
@@ -179,7 +180,10 @@ public class NacosRegistry extends FailbackRegistry {
@Override
public void doSubscribe(final URL url, final NotifyListener listener) {
- Set<String> serviceNames = getServiceNames(url, listener);
+ NacosAggregateListener nacosAggregateListener = new
NacosAggregateListener(listener);
+ originToAggregateListener.computeIfAbsent(url, k -> new
ConcurrentHashMap<>()).put(listener, nacosAggregateListener);
+
+ Set<String> serviceNames = getServiceNames(url,
nacosAggregateListener);
//Set corresponding serviceNames for easy search later
if (isServiceNamesWithCompatibleMode(url)) {
@@ -187,14 +191,12 @@ public class NacosRegistry extends FailbackRegistry {
NacosInstanceManageUtil.setCorrespondingServiceNames(serviceName, serviceNames);
}
}
-
- doSubscribe(url, listener, serviceNames);
+ doSubscribe(url, nacosAggregateListener, serviceNames);
}
- private void doSubscribe(final URL url, final NotifyListener listener,
final Set<String> serviceNames) {
+ private void doSubscribe(final URL url, final NacosAggregateListener
listener, final Set<String> serviceNames) {
execute(namingService -> {
if (isServiceNamesWithCompatibleMode(url)) {
- List<Instance> allCorrespondingInstanceList =
Lists.newArrayList();
/**
* Get all instances with serviceNames to avoid instance
overwrite and but with empty instance mentioned
@@ -209,9 +211,8 @@ public class NacosRegistry extends FailbackRegistry {
List<Instance> instances =
namingService.getAllInstances(serviceName,
getUrl().getParameter(GROUP_KEY,
Constants.DEFAULT_GROUP));
NacosInstanceManageUtil.initOrRefreshServiceInstanceList(serviceName,
instances);
- allCorrespondingInstanceList.addAll(instances);
+ notifySubscriber(url, serviceName, listener, instances);
}
- notifySubscriber(url, listener, allCorrespondingInstanceList);
for (String serviceName : serviceNames) {
subscribeEventListener(serviceName, url, listener);
}
@@ -220,7 +221,7 @@ public class NacosRegistry extends FailbackRegistry {
for (String serviceName : serviceNames) {
instances.addAll(namingService.getAllInstances(serviceName
, getUrl().getParameter(GROUP_KEY,
Constants.DEFAULT_GROUP)));
- notifySubscriber(url, listener, instances);
+ notifySubscriber(url, serviceName, listener, instances);
subscribeEventListener(serviceName, url, listener);
}
}
@@ -243,18 +244,24 @@ public class NacosRegistry extends FailbackRegistry {
public void doUnsubscribe(URL url, NotifyListener listener) {
if (isAdminProtocol(url)) {
shutdownServiceNamesLookup();
- }
- else {
- Set<String> serviceNames = getServiceNames(url, listener);
+ } else {
+ Map<NotifyListener, NacosAggregateListener> listenerMap =
originToAggregateListener.get(url);
+ NacosAggregateListener nacosAggregateListener =
listenerMap.remove(listener);
+ if (nacosAggregateListener != null) {
+ Set<String> serviceNames = getServiceNames(url,
nacosAggregateListener);
- doUnsubscribe(url, listener, serviceNames);
+ doUnsubscribe(url, nacosAggregateListener, serviceNames);
+ }
+ if (listenerMap.isEmpty()) {
+ originToAggregateListener.remove(url);
+ }
}
}
- private void doUnsubscribe(final URL url, final NotifyListener listener,
final Set<String> serviceNames) {
+ private void doUnsubscribe(final URL url, final NacosAggregateListener
nacosAggregateListener, final Set<String> serviceNames) {
execute(namingService -> {
for (String serviceName : serviceNames) {
- unsubscribeEventListener(serviceName, url, listener);
+ unsubscribeEventListener(serviceName, url,
nacosAggregateListener);
}
});
}
@@ -272,7 +279,7 @@ public class NacosRegistry extends FailbackRegistry {
* @param listener {@link NotifyListener}
* @return non-null
*/
- private Set<String> getServiceNames(URL url, NotifyListener listener) {
+ private Set<String> getServiceNames(URL url, NacosAggregateListener
listener) {
if (isAdminProtocol(url)) {
scheduleServiceNamesLookup(url, listener);
return getServiceNamesForOps(url);
@@ -306,7 +313,7 @@ public class NacosRegistry extends FailbackRegistry {
Set<String> serviceNames = new LinkedHashSet<>();
execute(namingService ->
serviceNames.addAll(namingService.getServicesOfServer(1, Integer.MAX_VALUE,
- getUrl().getParameter(GROUP_KEY,
Constants.DEFAULT_GROUP)).getData()
+ getUrl().getParameter(GROUP_KEY,
Constants.DEFAULT_GROUP)).getData()
.stream()
.filter(this::isConformRules)
.map(NacosServiceName::new)
@@ -357,7 +364,7 @@ public class NacosRegistry extends FailbackRegistry {
return ADMIN_PROTOCOL.equals(url.getProtocol());
}
- private void scheduleServiceNamesLookup(final URL url, final
NotifyListener listener) {
+ private void scheduleServiceNamesLookup(final URL url, final
NacosAggregateListener listener) {
if (scheduledExecutorService == null) {
scheduledExecutorService =
Executors.newSingleThreadScheduledExecutor();
scheduledExecutorService.scheduleAtFixedRate(() -> {
@@ -510,9 +517,9 @@ public class NacosRegistry extends FailbackRegistry {
return urls;
}
- private void subscribeEventListener(String serviceName, final URL url,
final NotifyListener listener)
+ private void subscribeEventListener(String serviceName, final URL url,
final NacosAggregateListener listener)
throws NacosException {
- ConcurrentMap<NotifyListener, EventListener> listeners =
nacosListeners.computeIfAbsent(url, k -> new ConcurrentHashMap<>());
+ ConcurrentMap<NacosAggregateListener, EventListener> listeners =
nacosListeners.computeIfAbsent(url, k -> new ConcurrentHashMap<>());
EventListener nacosListener = listeners.computeIfAbsent(listener, k ->
{
EventListener eventListener = event -> {
if (event instanceof NamingEvent) {
@@ -528,7 +535,7 @@ public class NacosRegistry extends FailbackRegistry {
instances =
NacosInstanceManageUtil.getAllCorrespondingServiceInstanceList(serviceName);
}
- notifySubscriber(url, listener, instances);
+ notifySubscriber(url, serviceName, listener, instances);
}
};
return eventListener;
@@ -538,14 +545,14 @@ public class NacosRegistry extends FailbackRegistry {
nacosListener);
}
- private void unsubscribeEventListener(String serviceName, final URL url,
final NotifyListener listener)
+ private void unsubscribeEventListener(String serviceName, final URL url,
final NacosAggregateListener listener)
throws NacosException {
- ConcurrentMap<NotifyListener, EventListener>
notifyListenerEventListenerConcurrentMap = nacosListeners.get(url);
- if(notifyListenerEventListenerConcurrentMap == null){
+ ConcurrentMap<NacosAggregateListener, EventListener>
notifyListenerEventListenerConcurrentMap = nacosListeners.get(url);
+ if (notifyListenerEventListenerConcurrentMap == null) {
return;
}
EventListener nacosListener =
notifyListenerEventListenerConcurrentMap.get(listener);
- if(nacosListener == null){
+ if (nacosListener == null) {
return;
}
namingService.unsubscribe(serviceName,
@@ -560,14 +567,14 @@ public class NacosRegistry extends FailbackRegistry {
* @param listener {@link NotifyListener}
* @param instances all {@link Instance instances}
*/
- private void notifySubscriber(URL url, NotifyListener listener,
Collection<Instance> instances) {
+ private void notifySubscriber(URL url, String serviceName,
NacosAggregateListener listener, Collection<Instance> instances) {
List<Instance> enabledInstances = new LinkedList<>(instances);
if (enabledInstances.size() > 0) {
// Instances
filterEnabledInstances(enabledInstances);
}
- List<URL> urls = toUrlWithEmpty(url, enabledInstances);
- NacosRegistry.this.notify(url, listener, urls);
+ List<URL> aggregatedUrls = toUrlWithEmpty(url,
listener.saveAndAggregateAllInstances(serviceName, enabledInstances));
+ NacosRegistry.this.notify(url, listener.getNotifyListener(),
aggregatedUrls);
}
/**
