content: /*
   *  Copyright (C) 2014 Stichting Akvo (Akvo Foundation)
   *
   *  This file is part of Akvo FLOW.
   *
   *  Akvo FLOW is free software: you can redistribute it and modify it under the terms of
   *  the GNU Affero General Public License (AGPL) as published by the Free Software Foundation,
   *  either version 3 of the License or any later version.
   *
   *  Akvo FLOW is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
   *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   *  See the GNU Affero General Public License included below for more details.
   *
   *  The full license text can also be seen at <http://www.gnu.org/licenses/agpl.html>.
   */
  
  package org.waterforpeople.mapping.app.web;
  
  import java.text.DateFormat;
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.TimeZone;
  
  import org.json.JSONObject;
  
  import org.waterforpeople.mapping.app.web.dto.DeviceTimeRestRequest;
  import org.waterforpeople.mapping.app.web.dto.DeviceTimeRestResponse;
  
  import com.gallatinsystems.framework.rest.AbstractRestApiServlet;
  import com.gallatinsystems.framework.rest.RestRequest;
  import com.gallatinsystems.framework.rest.RestResponse;
  
  /**
   * restful service for serving time
   */
  public class DeviceTimeRestService extends AbstractRestApiServlet {
  
      private static final long serialVersionUID = -830140106880504436L;
  
      public DeviceTimeRestService() {
          setMode(JSON_MODE);
      }
  
      @Override
      protected RestRequest convertRequest() throws Exception {
          // not needed in this service, simply return object to fulfill override
          RestRequest restRequest = new DeviceTimeRestRequest();
          return restRequest;
      }
  
      @Override
      protected RestResponse handleRequest(RestRequest req) throws Exception {
          DeviceTimeRestResponse resp = new DeviceTimeRestResponse();
  
          TimeZone tz = TimeZone.getTimeZone("UTC");
          DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
          df.setTimeZone(tz);
          String nowAsISO = df.format(new Date());
          resp.setTime(nowAsISO);
  
          return resp;
      }
  
      @Override
      protected void writeOkResponse(RestResponse resp) throws Exception {
          getResponse().setStatus(200);
          getResponse().getWriter().println(new JSONObject(resp).toString());
      }
  
  }
  