content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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 com.alibaba.nacos.naming.consistency.persistent.raft;
  
  import com.alibaba.nacos.naming.boot.RunningConfig;
  import com.alibaba.nacos.naming.misc.HttpClient;
  import com.alibaba.nacos.naming.misc.UtilsAndCommons;
  import org.springframework.http.HttpMethod;
  import org.springframework.stereotype.Component;
  
  import java.net.HttpURLConnection;
  import java.util.Map;
  
  /**
   * @author nacos
   */
  @Component
  public class RaftProxy {
  
      public void proxyGET(String server, String api, Map<String, String> params) throws Exception {
          // do proxy
          if (!server.contains(UtilsAndCommons.IP_PORT_SPLITER)) {
              server = server + UtilsAndCommons.IP_PORT_SPLITER + RunningConfig.getServerPort();
          }
          String url = "http://" + server + RunningConfig.getContextPath() + api;
  
          HttpClient.HttpResult result =  HttpClient.httpGet(url, null, params);
          if (result.code != HttpURLConnection.HTTP_OK) {
              throw new IllegalStateException("leader failed, caused by: " + result.content);
          }
      }
  
      public void proxy(String server, String api, Map<String, String> params, HttpMethod method) throws Exception {
          // do proxy
          if (!server.contains(UtilsAndCommons.IP_PORT_SPLITER)) {
              server = server + UtilsAndCommons.IP_PORT_SPLITER + RunningConfig.getServerPort();
          }
          String url = "http://" + server + RunningConfig.getContextPath() + api;
          HttpClient.HttpResult result;
          switch (method) {
              case GET:
                  result =  HttpClient.httpGet(url, null, params);
                  break;
              case POST:
                  result = HttpClient.httpPost(url, null, params);
                  break;
              case DELETE:
                  result =  HttpClient.httpDelete(url, null, params);
                  break;
              default:
                  throw new RuntimeException("unsupported method:" + method);
          }
  
          if (result.code != HttpURLConnection.HTTP_OK) {
              throw new IllegalStateException("leader failed, caused by: " + result.content);
          }
      }
  
      public void proxyPostLarge(String server, String api, String content, Map<String, String> headers) throws Exception {
          // do proxy
          if (!server.contains(UtilsAndCommons.IP_PORT_SPLITER)) {
              server = server + UtilsAndCommons.IP_PORT_SPLITER + RunningConfig.getServerPort();
          }
          String url = "http://" + server + RunningConfig.getContextPath() + api;
  
          HttpClient.HttpResult result =  HttpClient.httpPostLarge(url, headers, content);
          if (result.code != HttpURLConnection.HTTP_OK) {
              throw new IllegalStateException("leader failed, caused by: " + result.content);
          }
      }
  }
  