Subversion Repositories SmartDukaan

package com.spice.profitmandi.web.controller;

import java.io.File;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.time.LocalDate;

import java.time.LocalDateTime;

import java.time.LocalTime;

import java.time.ZoneOffset;

import java.util.ArrayList;

import java.util.LinkedHashMap;

import java.util.List;

import java.util.Map;

import java.util.stream.Collectors;

import javax.servlet.http.HttpServletRequest;

import javax.transaction.Transactional;

import org.apache.logging.log4j.LogManager;

import org.apache.logging.log4j.Logger;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.beans.factory.annotation.Value;

import org.springframework.core.io.InputStreamResource;

import org.springframework.http.HttpHeaders;

import org.springframework.http.HttpStatus;

import org.springframework.http.ResponseEntity;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestMethod;

import org.springframework.web.bind.annotation.RequestParam;

import com.google.gson.Gson;

import com.mongodb.DBObject;

import com.spice.profitmandi.common.enumuration.ContentType;

import com.spice.profitmandi.common.enumuration.MessageType;

import com.spice.profitmandi.common.exception.ProfitMandiBusinessException;

import com.spice.profitmandi.common.model.BrandStockPrice;

import com.spice.profitmandi.common.model.CustomRetailer;

import com.spice.profitmandi.common.model.Notification;

import com.spice.profitmandi.common.model.ProfitMandiConstants;

import com.spice.profitmandi.common.web.util.ResponseSender;

import com.spice.profitmandi.dao.Interface.Campaign;

import com.spice.profitmandi.dao.entity.dtr.Document;

import com.spice.profitmandi.dao.entity.dtr.NotificationCampaign;

import com.spice.profitmandi.dao.entity.dtr.UserCampaign;

import com.spice.profitmandi.dao.entity.fofo.FofoStore;

import com.spice.profitmandi.dao.entity.fofo.PartnerDailyInvestment;

import com.spice.profitmandi.dao.entity.fofo.PartnerTargetDetails;

import com.spice.profitmandi.dao.entity.fofo.PartnerType;

import com.spice.profitmandi.dao.model.SimpleCampaign;

import com.spice.profitmandi.dao.model.SimpleCampaignParams;

import com.spice.profitmandi.dao.repository.auth.AuthRepository;

import com.spice.profitmandi.dao.repository.dtr.DocumentRepository;

import com.spice.profitmandi.dao.repository.dtr.FofoStoreRepository;

import com.spice.profitmandi.dao.repository.dtr.Mongo;

import com.spice.profitmandi.dao.repository.dtr.NotificationCampaignRepository;

import com.spice.profitmandi.dao.repository.dtr.UserAccountRepository;

import com.spice.profitmandi.dao.repository.dtr.UserCampaignRepository;

import com.spice.profitmandi.dao.repository.fofo.CurrentInventorySnapshotRepository;

import com.spice.profitmandi.dao.repository.fofo.FofoOrderItemRepository;

import com.spice.profitmandi.dao.repository.fofo.HygieneDataRepository;

import com.spice.profitmandi.dao.repository.fofo.PartnerDailyInvestmentRepository;

import com.spice.profitmandi.dao.repository.fofo.PartnerTargetRepository;

import com.spice.profitmandi.dao.repository.fofo.PartnerTypeChangeService;

import com.spice.profitmandi.service.PartnerInvestmentService;

import com.spice.profitmandi.service.authentication.RoleManager;

import com.spice.profitmandi.service.inventory.InventoryService;

import com.spice.profitmandi.service.user.RetailerService;

import com.spice.profitmandi.web.model.LoginDetails;

import com.spice.profitmandi.web.util.CookiesProcessor;

@Controller

@Transactional(rollbackOn = Throwable.class)

public class DashboardController {

	@Value("${web.api.host}")

	private String webApiHost;

	@Value("${web.api.scheme}")

	private String webApiScheme;

	@Value("${web.api.root}")

	private String webApiRoot;

	@Value("${web.api.port}")

	private int webApiPort;

	@Autowired

	private CookiesProcessor cookiesProcessor;

	@Autowired

	private PartnerTargetRepository partnerTargetRepository;

	@Autowired

	private ResponseSender<?> responseSender;

	@Autowired

	RetailerService retailerService;

	@Autowired

	private RoleManager roleManager;

	@Autowired

	private FofoStoreRepository fofoStoreRepository;

	@Autowired

	private PartnerDailyInvestmentRepository partnerDailyInvestmentRepository;

	@Autowired

	private PartnerInvestmentService partnerInvestmentService;

	@Autowired

	DocumentRepository documentRepository;

	@Autowired

	InventoryService inventoryService;

	@Autowired

	private CurrentInventorySnapshotRepository currentInventorySnapshotRepository;

	@Autowired

	private FofoOrderItemRepository fofoOrderItemRepository;

	@Autowired

	private PartnerTypeChangeService partnerTypeChangeService;

	@Autowired

	private HygieneDataRepository hygieneDataRepository;

	@Autowired

	private UserCampaignRepository userCampaignRepository;

	@Autowired

	private UserAccountRepository userAccountRepository;

	@Autowired

	private NotificationCampaignRepository notificationCampaignRepository;

	@Autowired

	private Mongo mongoClient;

	@Autowired

	private AuthRepository authRepository;

	@Autowired

	private Gson gson;

	private static final Logger LOGGER = LogManager.getLogger(DashboardController.class);

	@RequestMapping(value = "/12dashboard34", method = RequestMethod.GET)

	public String dashboard1(HttpServletRequest request, Model model, @RequestParam int fofoId) throws Exception {

		boolean isAdmin = false;

		model.addAttribute("isAdmin", isAdmin);

		model.addAttribute("webApiHost", webApiHost);

		model.addAttribute("webApiPort", webApiPort);

		model.addAttribute("webApiScheme", webApiScheme);

		model.addAttribute("webApiRoot", webApiRoot);

		if (isAdmin) {

			return "dashboard1";

		} else {

			FofoStore fofoStore = null;

			try {

				CustomRetailer customRetailer = retailerService.getFofoRetailer(fofoId);

				fofoStore = fofoStoreRepository.selectByRetailerId(fofoId);

				if (!fofoStore.isActive()) {

					return "redirect:/login";

				}

				PartnerType partnerType = partnerTypeChangeService.getTypeOnDate(fofoStore.getId(), LocalDate.now());

				model.addAttribute("partnerType", partnerType);

				model.addAttribute("partnerTypeImage", PartnerType.imageMap.get(partnerType));

				model.addAttribute("fofoStore", customRetailer);

				model.addAttribute("partnerType", partnerType);

				model.addAttribute("hasGift", hasGift(fofoId));

				model.addAttribute("giftItemId", ProfitMandiConstants.GIFT_ID);

				model.addAttribute("brandStockPrices", this.getBrandStockPrices(fofoId));

				model.addAttribute("salesMap", this.getSales(fofoId));

				// this.setInvestments

				//

				model.addAttribute("investments", this.getInvestments(fofoId));

				model.addAttribute("isInvestmentOk", partnerInvestmentService.isInvestmentOk(fofoId,

						10, ProfitMandiConstants.CUTOFF_INVESTMENT));

			} catch (ProfitMandiBusinessException e) {

				LOGGER.error("FofoStore Code not found of fofoId {}", fofoId);

			}

		}

		LocalDateTime currentMonthStart = LocalDateTime.now().withDayOfMonth(1);

		LocalDateTime currentMonthEnd = currentMonthStart.plusMonths(1).withDayOfMonth(1);

		double currentMonthRating = hygieneDataRepository.selectRatingAvg(fofoId, currentMonthStart,

				currentMonthEnd) / 2;

		double lastMonthRating = hygieneDataRepository.selectRatingAvg(fofoId, currentMonthStart,

				currentMonthEnd) / 2;

		double ratingTillDate = hygieneDataRepository.selectRatingAvg(fofoId, currentMonthStart,

				currentMonthEnd) / 2;

		model.addAttribute("currentMonthRating", (float) Math.round(currentMonthRating * 10) / 10);

		model.addAttribute("lastMonthRating", (float) Math.round(lastMonthRating * 10) / 10);

		model.addAttribute("ratingTillDate", (float) Math.round(ratingTillDate * 10) / 10);

		long hygieneCount = hygieneDataRepository.selectHygieneCount(fofoId, true, currentMonthStart,

				currentMonthEnd);

		long invalidHygieneCount = hygieneDataRepository.selectHygieneCount(fofoId, false,

				currentMonthStart, currentMonthEnd);

		if (hygieneCount == 0 && invalidHygieneCount == 0) {

			invalidHygieneCount = 1;

		}

		model.addAttribute("hygienePercentage", (hygieneCount * 100) / (invalidHygieneCount + hygieneCount));

		model.addAttribute("monthDays", LocalDate.now().minusDays(1).lengthOfMonth());

		model.addAttribute("dayOfMonth", LocalDate.now().minusDays(1).getDayOfMonth());

		return "12dashboard34";

	}

	private Map<String, Object> getInvestments(int fofoId) throws Exception {

		Map<String, Object> investments = new LinkedHashMap<>();

		PartnerDailyInvestment investment = partnerInvestmentService.getInvestment(fofoId, 1);

		LocalDate currentMonthStart = LocalDate.now().withDayOfMonth(1);

		LocalDate yesterDate = LocalDate.now().minusDays(1);

		PartnerDailyInvestment yesterdayInvestment = partnerDailyInvestmentRepository.select(fofoId, yesterDate);

		if (yesterdayInvestment == null) {

			yesterdayInvestment = new PartnerDailyInvestment();

		}

		List<PartnerDailyInvestment> currentMonthInvestments = partnerDailyInvestmentRepository.selectAll(fofoId,

				currentMonthStart, currentMonthStart.withDayOfMonth(currentMonthStart.lengthOfMonth()));

		long okInvestmentDays = currentMonthInvestments.stream().filter(x -> x.getShortPercentage() <= 10)

				.collect(Collectors.counting());

		investments.put("today", investment.getTotalInvestment());

		investments.put("investment", investment);

		investments.put("inStock", investment.getInStockAmount());

		investments.put("minimum", investment.getMinInvestmentString());

		investments.put("short", investment.getShortPercentage());

		investments.put("okDays", okInvestmentDays);

		return investments;

	}

	private Map<String, Object> getSales(int fofoId) {

		Map<String, Object> salesMap = new LinkedHashMap<>();

		LocalDateTime curDate = LocalDate.now().atStartOfDay();

		int monthLength = LocalDate.now().lengthOfMonth();

		Double todaySale = fofoOrderItemRepository.selectSumAmountGroupByRetailer(curDate, curDate.with(LocalTime.MAX), 

				fofoId, false).get(fofoId);

		Double mtdSale = fofoOrderItemRepository.selectSumAmountGroupByRetailer(curDate.withDayOfMonth(1),

				curDate.with(LocalTime.MAX), fofoId, false).get(fofoId);

		Double lmtdSale = fofoOrderItemRepository.selectSumAmountGroupByRetailer(curDate.withDayOfMonth(1).minusMonths(1), 

				curDate.with(LocalTime.MAX).minusMonths(1), fofoId, false).get(fofoId);

		List<PartnerTargetDetails> partnerTargetDetails = partnerTargetRepository

				.selectAllGeEqAndLeEqStartDateAndEndDate(LocalDateTime.now());

		if (partnerTargetDetails.isEmpty()) {

			partnerTargetDetails = partnerTargetRepository

					.selectAllGeEqAndLeEqStartDateAndEndDate(LocalDateTime.now().minusMonths(3));

		}

		PartnerType partnerType = partnerTypeChangeService.getTypeOnDate(fofoId, LocalDate.now());

		int currentRate = (int) (mtdSale / curDate.getDayOfMonth());

		salesMap.put("requiredType", partnerType.next());

		float reqdAmount = partnerTypeChangeService.getMinimumAmount(partnerType.next());

		int requiredRate = (int) ((reqdAmount - mtdSale) / (monthLength - curDate.getDayOfMonth()));

		salesMap.put("requiredRate", requiredRate);

		salesMap.put("requiredTypeImage", PartnerType.imageMap.get(partnerType.next()));

		salesMap.put("todaySale", todaySale == null ? 0 : todaySale);

		salesMap.put("mtdSale", mtdSale == null ? 0 : mtdSale);

		salesMap.put("lmtdSale", lmtdSale == null ? 0  : lmtdSale);

		PartnerType currentType = partnerTypeChangeService.getPartnerTypeByAmount(currentRate * monthLength);

		salesMap.put("currentRate", currentRate);

		salesMap.put("currentType", currentType);

		salesMap.put("currentTypeImage", PartnerType.imageMap.get(currentType));

		return salesMap;

	}

	private List<BrandStockPrice> getBrandStockPrices(int fofoId) throws Exception {

		Map<String, BrandStockPrice> brandStockPricesMap = inventoryService.getBrandWiseStockValue(fofoId);

		List<DBObject> mobileBrands = mongoClient.getMongoBrands(fofoId, "", 3);

		List<BrandStockPrice> brandStockPrices = new ArrayList<>();

		mobileBrands.stream().forEach(x -> {

			String brand = (String) x.get("name");

			if (brandStockPricesMap.containsKey(brand)) {

				BrandStockPrice brandStockPrice = brandStockPricesMap.get(brand);

				brandStockPrice.setBrandUrl((String) x.get("url"));

				brandStockPrice.setRank(((Double) x.get("rank")).intValue());

				brandStockPrices.add(brandStockPrice);

			}

		});

		return brandStockPrices.stream().filter(x -> x.getTotalQty() > 0).sorted((x, y) -> x.getRank() - y.getRank())

				.collect(Collectors.toList());

	}

	@RequestMapping(value = "/dashboard", method = RequestMethod.GET)

	public String dashboard(HttpServletRequest request, Model model) throws Exception {

		LoginDetails loginDetails = cookiesProcessor.getCookiesObject(request);

		boolean isAdmin = roleManager.isAdmin(loginDetails.getRoleIds());

		model.addAttribute("isAdmin", isAdmin);

		model.addAttribute("webApiHost", webApiHost);

		model.addAttribute("webApiPort", webApiPort);

		model.addAttribute("webApiScheme", webApiScheme);

		model.addAttribute("webApiRoot", webApiRoot);

		if (isAdmin) {

			return adminPanel();

		} else {

			FofoStore fofoStore = null;

			try {

				fofoStore = fofoStoreRepository.selectByRetailerId(loginDetails.getFofoId());

				if (!fofoStore.isActive()) {

					return "redirect:/login";

				}

				PartnerType partnerType = partnerTypeChangeService.getTypeOnDate(fofoStore.getId(), LocalDate.now());

				model.addAttribute("partnerType", partnerType);

				model.addAttribute("partnerTypeImage", PartnerType.imageMap.get(partnerType));

				model.addAttribute("fofoStore", fofoStore);

				model.addAttribute("partnerType", partnerType);

				model.addAttribute("hasGift", hasGift(loginDetails.getFofoId()));

				model.addAttribute("giftItemId", ProfitMandiConstants.GIFT_ID);

				model.addAttribute("brandStockPrices", this.getBrandStockPrices(loginDetails.getFofoId()));

				model.addAttribute("salesMap", this.getSales(loginDetails.getFofoId()));

				// this.setInvestments

				//

				model.addAttribute("investments", this.getInvestments(loginDetails.getFofoId()));

				model.addAttribute("isInvestmentOk", partnerInvestmentService.isInvestmentOk(loginDetails.getFofoId(),

						10, ProfitMandiConstants.CUTOFF_INVESTMENT));

			} catch (ProfitMandiBusinessException e) {

				LOGGER.error("FofoStore Code not found of fofoId {}", loginDetails.getFofoId());

			}

		}

		LocalDateTime currentMonthStart = LocalDateTime.now().withDayOfMonth(1);

		LocalDateTime lastMonthStart = currentMonthStart.minusMonths(1);

		LocalDateTime currentMonthEnd = currentMonthStart.plusMonths(1).withDayOfMonth(1);

		double currentMonthRating = hygieneDataRepository.selectRatingAvg(loginDetails.getFofoId(), currentMonthStart,

				currentMonthEnd) / 2;

		double lastMonthRating = hygieneDataRepository.selectRatingAvg(loginDetails.getFofoId(), lastMonthStart,

				currentMonthStart) / 2;

		double ratingTillDate = hygieneDataRepository.selectRatingAvg(loginDetails.getFofoId(), LocalDateTime.MIN,

				currentMonthEnd) / 2;

		model.addAttribute("currentMonthRating", (float) Math.round(currentMonthRating * 10) / 10);

		model.addAttribute("lastMonthRating", (float) Math.round(lastMonthRating * 10) / 10);

		model.addAttribute("ratingTillDate", (float) Math.round(ratingTillDate * 10) / 10);

		long hygieneCount = hygieneDataRepository.selectHygieneCount(loginDetails.getFofoId(), true, currentMonthStart,

				currentMonthEnd);

		long invalidHygieneCount = hygieneDataRepository.selectHygieneCount(loginDetails.getFofoId(), false,

				currentMonthStart, currentMonthEnd);

		if (hygieneCount == 0 && invalidHygieneCount == 0) {

			invalidHygieneCount = 1;

		}

		model.addAttribute("hygienePercentage", (hygieneCount * 100) / (invalidHygieneCount + hygieneCount));

		model.addAttribute("monthDays", LocalDate.now().minusDays(1).lengthOfMonth());

		model.addAttribute("dayOfMonth", LocalDate.now().minusDays(1).getDayOfMonth());

		return "dashboard1";

	}

	private String adminPanel() {

		return "admin";

	}

	// This method is currently hardcoded to faciliate watches sold as gift.

	private boolean hasGift(int fofoId) {

		try {

			return currentInventorySnapshotRepository.selectByItemIdAndFofoId(ProfitMandiConstants.GIFT_ID, fofoId)

					.getAvailability() > 0;

		} catch (ProfitMandiBusinessException e) {

			return false;

		}

	}

	@RequestMapping(value = "/contactUs", method = RequestMethod.GET)

	public String contactUs(HttpServletRequest request, Model model) throws Throwable {

		model.addAttribute("appContextPath", request.getContextPath());

		return "contact-us";

	}

	@RequestMapping(value = "/notifications", method = RequestMethod.GET)

	public String getNotificationsWithType(HttpServletRequest request,

			@RequestParam(required = false) MessageType messageType,

			@RequestParam(name = "offset", defaultValue = "0") int offset,

			@RequestParam(name = "limit", defaultValue = "20") int limit, Model model) throws Exception {

		LoginDetails loginDetails = cookiesProcessor.getCookiesObject(request);

		int userId = userAccountRepository.selectUserIdByRetailerId(loginDetails.getFofoId());

		List<UserCampaign> userCampaigns = userCampaignRepository.selectByUserId(userId);

		List<Notification> notifications = null;

		if (!userCampaigns.isEmpty()) {

			List<Integer> campaignIds = new ArrayList<>();

			for (UserCampaign userCampaign : userCampaigns) {

				campaignIds.add(userCampaign.getCampaignId());

			}

			List<NotificationCampaign> notificationCampaigns = notificationCampaignRepository.selectbyCids(campaignIds,

					offset, limit);

			LOGGER.info("messageType" + messageType);

			notifications = getNotifications(notificationCampaigns, messageType);

		}

		model.addAttribute("notifications", notifications);

		LOGGER.info("notifications" + notifications);

		return "notification-template";

	}

	public List<Notification> getNotifications(List<NotificationCampaign> nc, MessageType messageType)

			throws ProfitMandiBusinessException {

		List<Notification> notifications = new ArrayList<>();

		Document document = null;

		if (messageType != null) {

			for (NotificationCampaign notificationCampaign : nc) {

				if (notificationCampaign.getMessageType() == messageType) {

					Notification ns = new Notification();

					SimpleCampaignParams scp = gson.fromJson(notificationCampaign.getImplementationParams(),

							SimpleCampaignParams.class);

					Campaign campaign = new SimpleCampaign(scp);

					LocalDateTime expire = campaign.getExpireTimestamp();

					ns.setCid(Integer.toString(notificationCampaign.getId()));

					ns.setType(campaign.getType());

					ns.setMessage(campaign.getMessage());

					ns.setTitle(campaign.getTitle());

					if (notificationCampaign.getDocumentId() != null) {

						document = documentRepository.selectById(notificationCampaign.getDocumentId());

						ns.setDocumentName(document.getDisplayName());

					}

					ns.setUrl(campaign.getUrl());

					ns.setShowImage(campaign.getShowImage());

					ns.setImageUrl(campaign.getImageUrl());

					ns.setDocumentId(notificationCampaign.getDocumentId());

					ns.setMessageType(notificationCampaign.getMessageType());

					ns.setCreated(

							notificationCampaign.getCreatedTimestamp().toEpochSecond(ZoneOffset.ofHoursMinutes(5, 30))

									* 1000);

					if (LocalDateTime.now().isAfter(expire)) {

						ns.setExpired(true);

					} else {

						ns.setExpired(false);

					}

					notifications.add(ns);

				}

			}

		} else {

			for (NotificationCampaign notificationCampaign : nc) {

				Notification ns = new Notification();

				SimpleCampaignParams scp = gson.fromJson(notificationCampaign.getImplementationParams(),

						SimpleCampaignParams.class);

				Campaign campaign = new SimpleCampaign(scp);

				LocalDateTime expire = campaign.getExpireTimestamp();

				ns.setCid(Integer.toString(notificationCampaign.getId()));

				ns.setType(campaign.getType());

				ns.setMessage(campaign.getMessage());

				ns.setTitle(campaign.getTitle());

				if (notificationCampaign.getDocumentId() != null) {

					document = documentRepository.selectById(notificationCampaign.getDocumentId());

					ns.setDocumentName(document.getDisplayName());

				}

				ns.setUrl(campaign.getUrl());

				ns.setShowImage(campaign.getShowImage());

				ns.setImageUrl(campaign.getImageUrl());

				ns.setDocumentId(notificationCampaign.getDocumentId());

				ns.setMessageType(notificationCampaign.getMessageType());

				ns.setCreated(notificationCampaign.getCreatedTimestamp().toEpochSecond(ZoneOffset.ofHoursMinutes(5, 30))

						* 1000);

				if (LocalDateTime.now().isAfter(expire)) {

					ns.setExpired(true);

				} else {

					ns.setExpired(false);

				}

				notifications.add(ns);

			}

		}

		return notifications;

	}

	@RequestMapping(value = "/notifyDocument/documentId", method = RequestMethod.GET)

	public ResponseEntity<?> retailerDocumentById(HttpServletRequest request,

			@RequestParam(name = ProfitMandiConstants.DOCUMENT_ID) int documentId, @RequestParam int cid)

			throws ProfitMandiBusinessException {

		Document document = documentRepository.selectById(documentId);

		NotificationCampaign nc = notificationCampaignRepository.selectById(cid);

		if (nc.getDocumentId() == null) {

			throw new ProfitMandiBusinessException("cid", nc.getId(), "not available");

		}

		if (nc.getDocumentId() != documentId) {

			throw new ProfitMandiBusinessException(ProfitMandiConstants.DOCUMENT_ID, documentId, "RTLR_1014");

		}

		return responseSender.ok(document);

	}

	@RequestMapping(value = "/notifyDocument/download", method = RequestMethod.GET)

	public ResponseEntity<?> downloadRetailerDocument(HttpServletRequest request, @RequestParam int cid, Model model)

			throws ProfitMandiBusinessException {

		NotificationCampaign nc = notificationCampaignRepository.selectById(cid);

		if (nc.getDocumentId() == null) {

			throw new ProfitMandiBusinessException("cid", nc.getId(), "not available");

		}

		Document document = documentRepository.selectById(nc.getDocumentId());

		FileInputStream file = null;

		try {

			file = new FileInputStream(document.getPath() + File.separator + document.getName());

		} catch (FileNotFoundException e) {

			LOGGER.error("Retailer Document file not found : ", e);

			throw new ProfitMandiBusinessException(ProfitMandiConstants.DOCUMENT_ID, document.getId(), "RTLR_1013");

		}

		// ByteArrayOutputStream byteArrayOutputStream = new

		// ByteArrayOutputStream();

		// ExcelUtils.writeSchemeModels(schemeModels, byteArrayOutputStream);

		final HttpHeaders headers = new HttpHeaders();

		String contentType = "";

		if (document.getContentType() == ContentType.JPEG) {

			contentType = "image/jpeg";

		} else if (document.getContentType() == ContentType.PNG) {

			contentType = "image/png";

		} else if (document.getContentType() == ContentType.PDF) {

			contentType = "application/pdf";

		}

		headers.set("Content-Type", contentType);

		headers.set("Content-disposition", "inline; filename=" + document.getName());

		headers.setContentLength(document.getSize());

		final InputStreamResource inputStreamResource = new InputStreamResource(file);

		return new ResponseEntity<InputStreamResource>(inputStreamResource, headers, HttpStatus.OK);

	}

}