示例#1
0
 public static void main(String args[]) {
   Gson gson = new Gson();
   DataMarketDAO dmDao = new DataMarketDAO();
   DataMarket dm = dmDao.getDataMarketByID(1);
   dm.setDatastream(null);
   JsonObject jo = new JsonObject();
   jo.addProperty(AllConstants.ProgramConts.result, AllConstants.ProgramConts.succeed);
   JsonElement jelement = gson.toJsonTree(dm);
   jo.add("data_market", jelement);
   System.out.println(gson.toJson(jo));
 }
示例#2
0
  /** @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */
  protected void doGet(HttpServletRequest request, HttpServletResponse response)
      throws ServletException, IOException {
    // TODO Auto-generated method stub

    response.setHeader("Access-Control-Allow-Origin", "*");
    response.setHeader(
        "Access-Control-Allow-Headers", MarketplaceContants.ACCESS_CONTROL_ALLOW_HEADERS);
    response.setHeader(
        "Access-Control-Allow-Methods", MarketplaceContants.ACCESS_CONTROL_ALLOW_METHODS);
    response.setHeader(
        "Access-Control-Expose-Headers", MarketplaceContants.ACCESS_CONTROL_ALLOW_HEADERS);
    PrintWriter out = response.getWriter();

    try {
      Users accessUser = null;
      PermissionFilter filter = new PermissionFilter();
      String loginID = filter.checkAndGetLoginFromToken(request, response);

      UserDAO userDao = new UserDAO();
      if (loginID == null) {
        if (filter.getCheckResult().equalsIgnoreCase(filter.INVALID_LOGIN_TOKEN_ID)) {
          ReturnParser.outputErrorException(
              response, AllConstants.ErrorDictionary.Invalid_login_token_id, null, null);
          return;
        } else if (filter
            .getCheckResult()
            .equalsIgnoreCase(AllConstants.ErrorDictionary.login_token_expired)) {
          return;
        } else {
          ReturnParser.outputErrorException(
              response, AllConstants.ErrorDictionary.Invalid_login_token_id, null, null);
          return;
        }
      } else {
        accessUser = userDao.getLogin(loginID);
      }
      String targetLoginID = filter.getTargetUserID(request, response);
      if (targetLoginID != null) {
        Users targetUser = userDao.getLogin(targetLoginID);
        if (targetUser == null) {
          ReturnParser.outputErrorException(
              response, AllConstants.ErrorDictionary.Invalid_Target_LoginID, null, null);
          return;
        }
      }
      if (targetLoginID == null) {
        targetLoginID = loginID;
      }

      Gson gson = new Gson();

      int marketID = 0;
      if (request.getParameter(MarketplaceContants.RequestParameters.marketID) == null) {
        ReturnParser.outputErrorException(
            response,
            AllConstants.ErrorDictionary.MISSING_DATA,
            null,
            MarketplaceContants.RequestParameters.marketID);
        return;
      }
      try {
        marketID =
            Integer.parseInt(request.getParameter(MarketplaceContants.RequestParameters.marketID));
      } catch (Exception ex) {
        ex.printStackTrace();
        ReturnParser.outputErrorException(
            response,
            AllConstants.ErrorDictionary.Invalid_data_format,
            null,
            MarketplaceContants.RequestParameters.marketID);
        return;
      }

      DataMarketDAO dmDao = new DataMarketDAO();
      DataMarket dm = dmDao.getDataMarketByID(marketID);

      if (dmDao.existDataSharingItem(loginID, dm.getDatastream().getStreamId())) {
        ReturnParser.outputErrorException(
            response, AllConstants.ErrorDictionary.data_sharing_item_exist, null, null);
        return;
      }

      DataSharing ds = new DataSharing();
      ds.setLoginID(loginID);
      ds.setTargetLoginID(dm.getDatastream().getOwner());
      ds.setStreamID(dm.getDatastream());
      ds.setCreatedTime(new Date());
      ds = dmDao.addDataSharing(ds);
      JsonObject jo = new JsonObject();
      jo.addProperty(AllConstants.ProgramConts.result, AllConstants.ProgramConts.succeed);
      // solve gson error with mulitple level reference
      ds.setStreamID(null);
      JsonElement jelement = gson.toJsonTree(ds);
      jo.add("data_sharing", jelement);
      System.out.println(gson.toJson(jo));
      out.println(gson.toJson(jo));

    } catch (Exception ex) {
      ex.printStackTrace();
      ReturnParser.outputErrorException(
          response, AllConstants.ErrorDictionary.Internal_Fault, null, null);
      return;
    } finally {
      out.close();
    }
  }