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));
}
/** @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();
}
}