content: /*
   * Copyright 2013-2023 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.endpoint;
  
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import com.alibaba.cloud.nacos.NacosDiscoveryProperties;
  import com.alibaba.cloud.nacos.NacosServiceManager;
  import com.alibaba.nacos.api.naming.NamingService;
  import com.alibaba.nacos.api.naming.pojo.Instance;
  import com.alibaba.nacos.api.naming.pojo.ServiceInfo;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
  import org.springframework.boot.actuate.endpoint.annotation.ReadOperation;
  
  /**
   * Endpoint for nacos discovery, get nacos properties and subscribed services.
   *
   * @author xiaojing
   */
  @Endpoint(id = "nacosdiscovery")
  public class NacosDiscoveryEndpoint {
  
  	private static final Logger log = LoggerFactory
  			.getLogger(NacosDiscoveryEndpoint.class);
  
  	private NacosServiceManager nacosServiceManager;
  
  	private NacosDiscoveryProperties nacosDiscoveryProperties;
  
  	public NacosDiscoveryEndpoint(NacosServiceManager nacosServiceManager,
  			NacosDiscoveryProperties nacosDiscoveryProperties) {
  		this.nacosServiceManager = nacosServiceManager;
  		this.nacosDiscoveryProperties = nacosDiscoveryProperties;
  	}
  
  	/**
  	 * @return nacos discovery endpoint
  	 */
  	@ReadOperation
  	public Map<String, Object> nacosDiscovery() {
  		Map<String, Object> result = new HashMap<>();
  		result.put("NacosDiscoveryProperties", nacosDiscoveryProperties);
  
  		NamingService namingService = nacosServiceManager.getNamingService();
  		List<ServiceInfo> subscribe = Collections.emptyList();
  
  		try {
  			subscribe = namingService.getSubscribeServices();
  			for (ServiceInfo serviceInfo : subscribe) {
  				List<Instance> instances = namingService.getAllInstances(
  						serviceInfo.getName(), serviceInfo.getGroupName());
  				serviceInfo.setHosts(instances);
  			}
  		}
  		catch (Exception e) {
  			log.error("get subscribe services from nacos fail,", e);
  		}
  		result.put("subscribe", subscribe);
  		return result;
  	}
  
  }
  