Merge pull request #694 from flystar32/master

fix #634 , add nacos server introspector

spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/ribbon/NacosRibbonClientConfiguration.java

@@ -33,9 +33,16 @@ public class NacosRibbonClientConfiguration {
 
 	@Bean
 	@ConditionalOnMissingBean
-	public ServerList<?> ribbonServerList(IClientConfig config, NacosDiscoveryProperties nacosDiscoveryProperties) {
+	public ServerList<?> ribbonServerList(IClientConfig config,
+			NacosDiscoveryProperties nacosDiscoveryProperties) {
 		NacosServerList serverList = new NacosServerList(nacosDiscoveryProperties);
 		serverList.initWithNiwsConfig(config);
 		return serverList;
 	}
+
+	@Bean
+	@ConditionalOnMissingBean
+	public NacosServerIntrospector nacosServerIntrospector() {
+		return new NacosServerIntrospector();
+	}
 }

spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/ribbon/NacosServerIntrospector.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2019 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
+ *
+ *      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.springframework.cloud.alibaba.nacos.ribbon;
+
+import java.util.Map;
+
+import org.springframework.cloud.netflix.ribbon.DefaultServerIntrospector;
+
+import com.netflix.loadbalancer.Server;
+
+/**
+ * @author xiaojing
+ */
+public class NacosServerIntrospector extends DefaultServerIntrospector {
+
+	@Override
+	public Map<String, String> getMetadata(Server server) {
+		if (server instanceof NacosServer) {
+			return ((NacosServer) server).getMetadata();
+		}
+		return super.getMetadata(server);
+	}
+
+	@Override
+	public boolean isSecure(Server server) {
+		if (server instanceof NacosServer) {
+			return Boolean.valueOf(((NacosServer) server).getMetadata().get("secure"));
+		}
+
+		return super.isSecure(server);
+	}
+}