I am trying to parse 5mb of xml using StAx parser in java. using intellij idea, in research they asked me to increase the heap size in custom vm options,I increased 512m to 2048m but it is not working.let me know is there any other solution...
Below code is trying to parses using StAx parser // StAX xml parsing for HotelSearchResult
public HotelSearchDto processRequestXmlparsing(String xml) throws ParserConfigurationException, IOException, SAXException, XMLStreamException {
HotelSearchDto hotelSearchDto = new HotelSearchDto();
ObjectMapper mapper = new ObjectMapper();
ObjectNode objectNode = mapper.createObjectNode();
String code = "";
String message = null;
try{
long startTime = System.currentTimeMillis();
List<SubsectionInformation> subInformationList = new ArrayList<>();
byte[] byteArray = xml.getBytes("UTF-8");
ByteArrayInputStream inputStream = new ByteArrayInputStream(byteArray);
XMLInputFactory inputFactory = XMLInputFactory.newInstance();
XMLEventReader eventReader = inputFactory.createXMLEventReader(inputStream);
SearchCriteriaDto searchCriteriaDto = new SearchCriteriaDto();
Hotel hotel = new Hotel();
BaseInfo baseInfo = new BaseInfo();
CommunicationInfo communicationInfo = new CommunicationInfo();
HotelRating hotelRating = new HotelRating();
HotelAmenity hotelAmenity = new HotelAmenity();
DetailedAmenity detailedAmenity = new DetailedAmenity();
List<DetailedAmenity> detailedAmenities = new ArrayList<DetailedAmenity>();
Amenitie amenitie = new Amenitie();
List<HotelAmenity> hotelAmenityList= new ArrayList<HotelAmenity>();
List<Amenitie> amenitieList = new ArrayList<Amenitie>();
List<Hotel> hotelList = new ArrayList<Hotel>();
List<RoomRate> roomRates = new ArrayList<RoomRate>();
RoomRate roomRate = new RoomRate();
Offers offers = new Offers();
List<RateBrakeDown> rateBrakeDownList = new ArrayList<RateBrakeDown>();
RateBrakeDown rateBrakeDown = new RateBrakeDown();
List<PricingElement> pricingElementList = new ArrayList<PricingElement>();
PricingElement pricingElement = new PricingElement();
RoomType roomType = new RoomType();
PromoOffer promoOffer = new PromoOffer();
while (eventReader.hasNext()) {
XMLEvent event = eventReader.nextEvent();
// If we have an item element, we create a new item
if (event.isStartElement()) {
if (event.asStartElement().getName().getLocalPart()
.equals("booking-date")) {
searchCriteriaDto.setBookingDate(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("check-in-date")) {
searchCriteriaDto.setCheckInDate(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("check-out-date")) {
searchCriteriaDto.setCheckOutDate(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("number-of-rooms")) {
searchCriteriaDto.setNumberOfRooms(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("number-of-nights")) {
searchCriteriaDto.setNumberOfNights(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("number-of-room-nights")) {
searchCriteriaDto.setNumberOfRoomNights(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("city")) {
searchCriteriaDto.setCity(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("state")) {
searchCriteriaDto.setState(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("country")) {
searchCriteriaDto.setCountry(eventReader.nextEvent().toString());
hotelSearchDto.setSearchCriteriaDto(searchCriteriaDto);
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("currency")) {
hotelSearchDto.setCurrency(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("base-url")) {
hotelSearchDto.setBaseUrl(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("hotel-id")) {
hotel.setHotelId(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("hotel-info-copyright")) {
baseInfo.setHotelInfoCopyright(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("hotel-name")) {
baseInfo.setHotelName(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("address")) {
baseInfo.setAddress(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("locality")) {
baseInfo.setLocality(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("locality-id")) {
baseInfo.setLocalityId(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("locality-latitude")) {
baseInfo.setLocalityLatitude(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("locality-longitude")) {
baseInfo.setLocalityLongitude(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("city")) {
baseInfo.setCity(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("state")) {
baseInfo.setState(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("state-code")) {
baseInfo.setStateCode(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("country")) {
baseInfo.setCountry(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("country-code")) {
baseInfo.setCountryCode(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("zip")) {
baseInfo.setZip(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("phone")) {
communicationInfo.setPhone(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("fax")) {
communicationInfo.setFax(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("email")) {
communicationInfo.setEmail(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("website")) {
communicationInfo.setWebsite(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("owner-name")) {
communicationInfo.setOwnerName(eventReader.nextEvent().toString());
baseInfo.setCommunicationInfo(communicationInfo);
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("chain")) {
baseInfo.setChain(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("overview")) {
baseInfo.setOverview(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("thumb-nail-image")) {
baseInfo.setThumbNailImage(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("category")) {
hotelAmenity.setCategory(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("amenity")) {
String amenityVal = eventReader.nextEvent().toString();
String[] amentityArray = new String[]{amenityVal};
// amenitie.setAmenity(amentityArray);
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("name")) {
detailedAmenity.setName(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("chargeable")) {
detailedAmenity.setChargeable(Boolean.parseBoolean(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("price-info")) {
detailedAmenity.setPriceInfo(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("unit-info")) {
detailedAmenity.setUnitInfo(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("misc-info")) {
detailedAmenity.setMiscInfo(eventReader.nextEvent().toString());
detailedAmenities.add(detailedAmenity);
amenitie.setDetailedAmenityList(detailedAmenities);
hotelAmenity.setAmenities(amenitie);
hotelAmenityList.add(hotelAmenity);
baseInfo.setHotelAmenityList(hotelAmenityList);
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("is-veg")) {
baseInfo.setIsVeg(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("is-on-hold")) {
baseInfo.setIsOnHold(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("rating-type")) {
hotelRating.setRatingType(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("rating")) {
hotelRating.setRating(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equals("total-ratings")) {
hotelRating.setTotalRating(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("star-rating")) {
baseInfo.setStarRating(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("ct-recommendation")) {
baseInfo.setCtRecommendation(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("hotel-usp")) {
baseInfo.setHotelUsp(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("notice")) {
baseInfo.setNotice(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("ct-recommended")) {
baseInfo.setCtRecommended(Boolean.parseBoolean(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("getaway-property")) {
baseInfo.setGetawayProperty(Boolean.parseBoolean(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("lth-hotel")) {
baseInfo.setLthHotel(Boolean.parseBoolean(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("faqs")) {
baseInfo.setFaqs(Boolean.parseBoolean(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("restrictions")) {
baseInfo.setRestrictions(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("hotel-activities")) {
baseInfo.setRestrictions(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("view-360")) {
baseInfo.setView360(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("supplier-360")) {
baseInfo.setSupplier360(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("gstin_enabled")) {
baseInfo.setGstin_enabled(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("gstin")) {
baseInfo.setGstin(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("tds_enabled")) {
baseInfo.setTds_enabled(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("tds_rate")) {
baseInfo.setTds_rate(eventReader.nextEvent().toString());
hotel.setBaseInfo(baseInfo);
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("amount")) {
pricingElement.setAmount(eventReader.nextEvent().toString());
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("code")) {
pricingElement.setCode(eventReader.nextEvent().toString());
pricingElementList.add(pricingElement);
rateBrakeDown.setPricingElement(pricingElementList);
rateBrakeDownList.add(rateBrakeDown);
roomRate.setRateBrakeDown(rateBrakeDownList);
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("base-rate-id")) {
roomRate.setBaseRateId(Long.parseLong(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("is-special-rate")) {
roomRate.setSpecialRate(Boolean.parseBoolean(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("deal-of-the-day")) {
roomRate.setDealOfTheDay(Boolean.parseBoolean(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("opaque")) {
roomRate.setOpaque(Boolean.parseBoolean(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("max-adults")) {
roomRate.setMaxAdults(Long.parseLong(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("max-children")) {
roomRate.setMaxChildren(Long.parseLong(eventReader.nextEvent().toString()));
continue;
}
if (event.asStartElement().getName().getLocalPart()
.equalsIgnoreCase("max-gst-slab")) {
roomRate.setMaxGstSlab(eventReader.nextEvent().toString());
roomRates.add(roomRate);
hotel.setRoomRates(roomRates);
hotelList.add(hotel);
hotelSearchDto.setHotelList(hotelList);
System.out.println(hotelSearchDto.getHotelList().size());
continue;
}
}
}
//Creating json object for xmlparsing elements
if(code.equalsIgnoreCase("")) {
Gson gson = new Gson();
objectNode.put("HotelSearchDto", gson.toJson(hotelSearchDto));
}else{
objectNode.put("code", code);
objectNode.put("message", message);
}
Long endtime = System.currentTimeMillis() - startTime;
System.out.println(endtime);
}catch(Exception e){
e.printStackTrace();
}
return hotelSearchDto;
}
