add NacosRegistrationCustomizer.java

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/registry/NacosRegistration.java

@@ -17,6 +17,7 @@
 package com.alibaba.cloud.nacos.registry;
 
 import java.net.URI;
+import java.util.List;
 import java.util.Map;
 
 import javax.annotation.PostConstruct;
@@ -62,8 +63,11 @@ public class NacosRegistration implements Registration, ServiceInstance {
 
 	private ApplicationContext context;
 
+	private List<NacosRegistrationCustomizer> registrationCustomizers;
+
 	public NacosRegistration(NacosDiscoveryProperties nacosDiscoveryProperties,
-			ApplicationContext context) {
+							 ApplicationContext context,
+							 List<NacosRegistrationCustomizer> registrationCustomizers) {
 		this.nacosDiscoveryProperties = nacosDiscoveryProperties;
 		this.context = context;
 	}
@@ -105,6 +109,15 @@ public class NacosRegistration implements Registration, ServiceInstance {
 			metadata.put(PreservedMetadataKeys.IP_DELETE_TIMEOUT,
 					nacosDiscoveryProperties.getIpDeleteTimeout().toString());
 		}
+		customize(registrationCustomizers,this);
+	}
+
+	private static void customize(List<NacosRegistrationCustomizer> registrationCustomizers, NacosRegistration registration) {
+		if (registrationCustomizers != null) {
+			for (NacosRegistrationCustomizer customizer : registrationCustomizers) {
+				customizer.customize(registration);
+			}
+		}
 	}
 
 	@Override

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/registry/NacosRegistrationCustomizer.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2013-2018 the original author or authors.
+ *
+ * Licensed 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
+ *
+ *      https://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 com.alibaba.cloud.nacos.registry;
+
+/**
+ * @author L.cm
+ */
+public interface NacosRegistrationCustomizer {
+
+	/**
+	 * customize NacosRegistration
+	 *
+	 * @param registration NacosRegistration
+	 */
+	void customize(NacosRegistration registration);
+
+}

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/registry/NacosServiceRegistryAutoConfiguration.java

@@ -20,6 +20,7 @@ import com.alibaba.cloud.nacos.ConditionalOnNacosDiscoveryEnabled;
 import com.alibaba.cloud.nacos.NacosDiscoveryProperties;
 import com.alibaba.cloud.nacos.discovery.NacosDiscoveryAutoConfiguration;
 
+import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
@@ -31,6 +32,8 @@ import org.springframework.context.ApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
+import java.util.List;
+
 /**
  * @author xiaojing
  * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
@@ -53,10 +56,10 @@ public class NacosServiceRegistryAutoConfiguration {
 
 	@Bean
 	@ConditionalOnBean(AutoServiceRegistrationProperties.class)
-	public NacosRegistration nacosRegistration(
-			NacosDiscoveryProperties nacosDiscoveryProperties,
-			ApplicationContext context) {
-		return new NacosRegistration(nacosDiscoveryProperties, context);
+	public NacosRegistration nacosRegistration(NacosDiscoveryProperties nacosDiscoveryProperties,
+											   ApplicationContext context,
+											   ObjectProvider<List<NacosRegistrationCustomizer>> registrationCustomizers) {
+		return new NacosRegistration(nacosDiscoveryProperties, context, registrationCustomizers.getIfAvailable());
 	}
 
 	@Bean