content: /*
   * 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.bookkeeper.server.http.service;
  
  import static com.google.common.base.Preconditions.checkNotNull;
  
  import java.util.HashMap;
  import java.util.Map;
  import org.apache.bookkeeper.common.util.JsonUtil;
  import org.apache.bookkeeper.conf.ServerConfiguration;
  import org.apache.bookkeeper.http.HttpServer;
  import org.apache.bookkeeper.http.service.HttpEndpointService;
  import org.apache.bookkeeper.http.service.HttpServiceRequest;
  import org.apache.bookkeeper.http.service.HttpServiceResponse;
  
  /**
   * HttpEndpointService that handle Bookkeeper Configuration related http request.
   */
  public class ConfigurationService implements HttpEndpointService {
  
      protected ServerConfiguration conf;
  
      public ConfigurationService(ServerConfiguration conf) {
          checkNotNull(conf);
          this.conf = conf;
      }
  
      @Override
      public HttpServiceResponse handle(HttpServiceRequest request) throws Exception {
          HttpServiceResponse response = new HttpServiceResponse();
          // GET
          if (HttpServer.Method.GET == request.getMethod()) {
              String jsonResponse = conf.asJson();
              response.setBody(jsonResponse);
              return response;
          } else if (HttpServer.Method.PUT == request.getMethod()) {
              String requestBody = request.getBody();
              if (null == requestBody) {
                  response.setCode(HttpServer.StatusCode.NOT_FOUND);
                  response.setBody("Request body not found. should contains k-v pairs");
                  return response;
              }
              @SuppressWarnings("unchecked")
              HashMap<String, Object> configMap = JsonUtil.fromJson(requestBody, HashMap.class);
              for (Map.Entry<String, Object> entry: configMap.entrySet()) {
                  conf.setProperty(entry.getKey(), entry.getValue());
              }
  
              response.setCode(HttpServer.StatusCode.OK);
              response.setBody("Success set server config.");
              return response;
          } else {
              response.setCode(HttpServer.StatusCode.NOT_FOUND);
              response.setBody("Request body not found. should contains k-v pairs");
              return response;
          }
  
      }
  }
  