text: /**
   * Copyright 2016 Henning Treu
   *
   * 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.
   */
  
  import request from 'request';
  
  export class RestClient {
  
    fetchSitemap(serverAddress, sitemapName, callback) {
      let url = 'http://' + serverAddress + '/rest/sitemaps/' + sitemapName + '?type=json';
      try {
        request(url, function (error, response, body) {
          if (error) {
            callback(error);
          } else if (response.statusCode !== 200) {
            callback(new Error(
              'openHAB Rest interface returned ' + response.statusCode + ' for URL ' + url));
          } else if (response.statusCode === 200) {
            callback(undefined, JSON.parse(body));
          }
        });
      } catch (e) {
        throw new Error ('error connecting openHAB Rest interface: ' + e.message);
      }
    };
  
    fetchItem(itemURL, callback) {
      let url = itemURL + '?type=json';
      try {
        request(url, function (error, response, body) {
          if (error) {
            callback(error);
          } else if (response.statusCode !== 200) {
            callback(new Error(
              'openHAB Rest interface returned ' + response.statusCode + ' for URL ' + url));
          } else if (response.statusCode === 200) {
            callback(undefined, JSON.parse(body));
          }
        });
      } catch (e) {
        throw new Error ('error connecting openHAB Rest interface: ' + e.message);
      }
    };
  
  }
  