Subversion Repositories SmartDukaan

package in.shop2020.web;

import in.shop2020.model.Item;
import in.shop2020.model.ItemActivity;
import in.shop2020.server.ItemActivityRepository;
import in.shop2020.server.ItemRepository;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.TimeZone;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.google.appengine.api.datastore.DatastoreService;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Entity;
import com.google.appengine.api.datastore.PreparedQuery;
import com.google.appengine.api.datastore.Query;

public class DailyAggregatorServlet extends HttpServlet {
    private static final long serialVersionUID = -8236918415987438049L;
    private static final String KIND = "DataLog";
    private static final String SESSION_ID_FILED = "sessionId";
    private static final String ITEMID_FILED = "itemId";
    private static final String ITEMIDS_FILED = "itemIds";
    private static final String PRODUCTNAME_FILED = "productName";
    private static final String EVENTTYPE_FILED = "eventType";
    private static final String DATE_FILED = "date";
    
    private static final String PRODUCT_VIEW_EVENT = "PRODUCT_VIEW";
    private static final String ADD_TO_CART_EVENT = "ADD_TO_CART";
    private static final String DELETE_FROM_CART_EVENT = "DELETE_FROM_CART";
    private static final String RESEARCH_ADD_EVENT = "RESEARCH_ADD";
    private static final String RESEARCH_DELETE_EVENT = "RESEARCH_DELETE";
    private static final String SHIPPING_ACCESS_EVENT = "SHIPPINIG_ACCESS";
    private static final String PAYMENT_SUCCESS_EVENT = "PAYMENT_SUCCESS";
    private static final String ORDER_CREATION_EVENT = "ORDER_CREATION";
    private static final String PAYMENT_FAILURE_EVENT = "PAYMENT_FAILURE";
    private static final String PROCEED_TO_PAY_EVENT = "PROCEED_TO_PAY";
    
    private static final String VIEW_COUNT_KEY = "ViewCount";
    private static final String UNIQUE_VIEW_COUNT_KEY = "UniqueViewCount";
    private static final String ADD_TO_CART_COUNT_KEY = "AddToCartCount";
    private static final String UNIQUE_ADD_TO_CART_COUNT_KEY = "UniqueAddToCartCount";
    private static final String DELETE_FROM_CART_COUNT_KEY = "DeleteFromCartCount";
    private static final String UNIQUE_DELETE_FROM_CART_COUNT_KEY = "UniqueDeleteFromCartCount";
    private static final String ADD_TO_RESEARCH_COUNT_KEY = "AddToResearchCount";
    private static final String UNIQUE_ADD_TO_RESEARCH_COUNT_KEY = "UniqueAddToResearchCount";
    private static final String DELETE_FROM_RESEARCH_COUNT_KEY = "DeleteFromResearchCount";
    private static final String UNIQUE_DELETE_FROM_RESEARCH_COUNT_KEY = "UniqueDeleteFromResearchCount";
    private static final String SHIPPING_ACCESS_COUNT_KEY = "ShippingAccessCount";
    private static final String UNIQUE_SHIPPING_ACCESS_COUNT_KEY = "UniqueShippingAccessCount";
    private static final String PAYMENT_SUCCESS_COUNT_KEY = "PaymentSuccessCount";
    private static final String UNIQUE_PAYMENT_SUCCESS_COUNT_KEY = "UniquePaymentSuccessCount";
    private static final String ORDER_CREATION_COUNT_KEY = "OrderCreationCount";
    private static final String UNIQUE_ORDER_CREATION_COUNT_KEY = "UniqueOrderCreationCount";
    private static final String PAYMENT_FAILURE_COUNT_KEY = "PaymentFailureCount";
    private static final String UNIQUE_PAYMENT_FAILURE_COUNT_KEY = "UniquePaymentFailureCount";
    private static final String PROCEED_TO_PAY_COUNT_KEY = "ProceedToPayCount";
    private static final String UNIQUE_PROCEED_TO_PAY_COUNT_KEY = "UniqueProceedToPayCount";
    
    private Map<Long, Item> itemsMap = new HashMap<Long, Item>();
    private Map<Long, Item> itemsCatalogIdMap = new HashMap<Long, Item>();
    private Map<String, Item> itemsNameMap = new HashMap<String, Item>();
    private Map<Long, Map<String, Long>> itemsResultMap = new HashMap<Long, Map<String, Long>>();
    
    private Date fromDate;
    private Date toDate;
    private DatastoreService datastore;
    
    public void doPost(HttpServletRequest req, HttpServletResponse resp) {
        datastore = DatastoreServiceFactory.getDatastoreService();
        SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
        Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("IST"));
        String dateStr = req.getParameter("date");  
        if (dateStr != null && !dateStr.isEmpty()) {
            try {
                cal.setTime(sdf.parse(dateStr));
                cal.add(Calendar.DAY_OF_MONTH, 1);
            } catch (ParseException e) {
                e.printStackTrace();
            }
        }
        cal.set(Calendar.HOUR_OF_DAY, 0);  
        cal.set(Calendar.MINUTE, 0);  
        cal.set(Calendar.SECOND, 0);  
        cal.set(Calendar.MILLISECOND, 0);
        toDate = cal.getTime();
        cal.add(Calendar.DAY_OF_MONTH, -1);
        fromDate = cal.getTime();
        
        ItemRepository itemRepository = new ItemRepository();
        List<Item> items = itemRepository.getAll();
        for (Item item : items) {
            itemsMap.put(item.getId(), item);
            itemsCatalogIdMap.put(item.getCatalogId(), item);
            itemsNameMap.put(item.getName().trim(), item);
        }
        
        UpdateViewCount(PRODUCT_VIEW_EVENT, VIEW_COUNT_KEY, UNIQUE_VIEW_COUNT_KEY);
        
        UpdateItemIdEventCount(ADD_TO_CART_EVENT, ADD_TO_CART_COUNT_KEY, UNIQUE_ADD_TO_CART_COUNT_KEY, false);
        UpdateItemIdEventCount(DELETE_FROM_CART_EVENT, DELETE_FROM_CART_COUNT_KEY, UNIQUE_DELETE_FROM_CART_COUNT_KEY, false);
        UpdateItemIdEventCount(RESEARCH_ADD_EVENT, ADD_TO_RESEARCH_COUNT_KEY, UNIQUE_ADD_TO_RESEARCH_COUNT_KEY, true);
        UpdateItemIdEventCount(RESEARCH_DELETE_EVENT, DELETE_FROM_RESEARCH_COUNT_KEY, UNIQUE_DELETE_FROM_RESEARCH_COUNT_KEY, true);
        
        UpdateItemIdEventCount(SHIPPING_ACCESS_EVENT, SHIPPING_ACCESS_COUNT_KEY, UNIQUE_SHIPPING_ACCESS_COUNT_KEY, false);
        UpdateItemIdEventCount(PAYMENT_SUCCESS_EVENT, PAYMENT_SUCCESS_COUNT_KEY, UNIQUE_PAYMENT_SUCCESS_COUNT_KEY, false);
        UpdateItemIdEventCount(ORDER_CREATION_EVENT, ORDER_CREATION_COUNT_KEY, UNIQUE_ORDER_CREATION_COUNT_KEY, false);
        UpdateItemIdEventCount(PAYMENT_FAILURE_EVENT, PAYMENT_FAILURE_COUNT_KEY, UNIQUE_PAYMENT_FAILURE_COUNT_KEY, false);
        UpdateItemIdEventCount(PROCEED_TO_PAY_EVENT, PROCEED_TO_PAY_COUNT_KEY, UNIQUE_PROCEED_TO_PAY_COUNT_KEY, false);
        
        List<ItemActivity> itemActivities = new ArrayList<ItemActivity>();
        ItemActivityRepository itemActivityRepository = new ItemActivityRepository();
        for (Entry<Long, Map<String, Long>> entry : itemsResultMap.entrySet()) {
            Long catalogItemId = (Long)entry.getKey();
            Map<String, Long> itemMap = (Map<String, Long>)entry.getValue();
            
            ItemActivity itemActivity = new ItemActivity();
            itemActivity.setCatalogId(catalogItemId);
            itemActivity.setDate(fromDate);
            
            itemActivity.setView(itemMap.get(VIEW_COUNT_KEY));
            itemActivity.setAddToCart(itemMap.get(ADD_TO_CART_COUNT_KEY));
            itemActivity.setAddToResearch(itemMap.get(ADD_TO_RESEARCH_COUNT_KEY));
            itemActivity.setDeleteFromCart(itemMap.get(DELETE_FROM_CART_COUNT_KEY));
            itemActivity.setDeleteFromResearch(itemMap.get(DELETE_FROM_RESEARCH_COUNT_KEY));
            itemActivity.setShippingAccess(itemMap.get(SHIPPING_ACCESS_COUNT_KEY));
            itemActivity.setPaymentSuccess(itemMap.get(PAYMENT_SUCCESS_COUNT_KEY));
            itemActivity.setOrderCreation(itemMap.get(ORDER_CREATION_COUNT_KEY));
            itemActivity.setPaymentFailure(itemMap.get(PAYMENT_FAILURE_COUNT_KEY));
            itemActivity.setProceedToPay(itemMap.get(PROCEED_TO_PAY_COUNT_KEY));
            
            itemActivity.setUniqueView(itemMap.get(UNIQUE_VIEW_COUNT_KEY));
            itemActivity.setUniqueAddToCart(itemMap.get(UNIQUE_ADD_TO_CART_COUNT_KEY));
            itemActivity.setUniqueAddToResearch(itemMap.get(UNIQUE_ADD_TO_RESEARCH_COUNT_KEY));
            itemActivity.setUniqueDeleteFromCart(itemMap.get(UNIQUE_DELETE_FROM_CART_COUNT_KEY));
            itemActivity.setUniqueDeleteFromResearch(itemMap.get(UNIQUE_ADD_TO_RESEARCH_COUNT_KEY));
            itemActivity.setUniqueShippingAccess(itemMap.get(UNIQUE_SHIPPING_ACCESS_COUNT_KEY));
            itemActivity.setUniquePaymentSuccess(itemMap.get(UNIQUE_PAYMENT_SUCCESS_COUNT_KEY));
            itemActivity.setUniqueOrderCreation(itemMap.get(UNIQUE_ORDER_CREATION_COUNT_KEY));
            itemActivity.setUniquePaymentFailure(itemMap.get(UNIQUE_PAYMENT_FAILURE_COUNT_KEY));
            itemActivity.setUniqueProceedToPay(itemMap.get(UNIQUE_PROCEED_TO_PAY_COUNT_KEY));
            
            itemActivities.add(itemActivity);
        }
        itemActivityRepository.createAll(itemActivities);
    }

    public void doGet(HttpServletRequest req, HttpServletResponse resp) {
        doPost(req, resp);
    }

    private void UpdateViewCount(String event, String viewCountKey, String uniqueViewCountKey) {
        Query query = new Query(KIND);
        query.addFilter(EVENTTYPE_FILED, Query.FilterOperator.EQUAL, event);
        query.addFilter(DATE_FILED, Query.FilterOperator.GREATER_THAN_OR_EQUAL, fromDate);
        query.addFilter(DATE_FILED, Query.FilterOperator.LESS_THAN, toDate);
        PreparedQuery pq = datastore.prepare(query);
        Set<String> uniqueSet = new HashSet<String>();
        for (Entity result : pq.asIterable()) {
            String sessionId = (String)result.getProperty(SESSION_ID_FILED);
            Long catalogItemId = (Long)result.getProperty(ITEMID_FILED);
            if(catalogItemId == null) {
                String name = (String)result.getProperty(PRODUCTNAME_FILED);
                if (itemsNameMap.containsKey(name.trim())) {
                    catalogItemId = itemsNameMap.get(name.trim()).getCatalogId();
                }
            }
            if (itemsResultMap.containsKey(catalogItemId)) {
                Map<String, Long> itemMap = itemsResultMap.get(catalogItemId);
                if (itemMap.containsKey(VIEW_COUNT_KEY)) {
                    Long count = itemMap.get(VIEW_COUNT_KEY);
                    itemMap.put(VIEW_COUNT_KEY, ++count);
                }
                else {
                    itemMap.put(VIEW_COUNT_KEY, 1l);
                }
            }
            else {
                Map<String, Long> itemMap = new HashMap<String, Long>();
                itemMap.put(VIEW_COUNT_KEY, 1l);
                itemsResultMap.put(catalogItemId, itemMap);
            }
            String uniqueKey = sessionId + catalogItemId;
            if (!uniqueSet.contains(uniqueKey)) {
                Map<String, Long> itemMap = itemsResultMap.get(catalogItemId);
                if (itemMap.containsKey(UNIQUE_VIEW_COUNT_KEY)) {
                    Long count = itemMap.get(UNIQUE_VIEW_COUNT_KEY);
                    itemMap.put(UNIQUE_VIEW_COUNT_KEY, ++count);
                }
                else {
                    itemMap.put(UNIQUE_VIEW_COUNT_KEY, 1l);
                }
                uniqueSet.add(uniqueKey);
            }
        }
    }
    
    private void UpdateItemIdEventCount(String event, String countKey, String uniqueCountKey, boolean isCatalogIdEvent) {
        Query query = new Query(KIND);
        query.addFilter(EVENTTYPE_FILED, Query.FilterOperator.EQUAL, event);
        query.addFilter(DATE_FILED, Query.FilterOperator.GREATER_THAN_OR_EQUAL, fromDate);
        query.addFilter(DATE_FILED, Query.FilterOperator.LESS_THAN, toDate);
        PreparedQuery pq = datastore.prepare(query);
        Set<String> uniqueSet = new HashSet<String>();
        for (Entity result : pq.asIterable()) {
            String sessionId = (String)result.getProperty(SESSION_ID_FILED);
            List<Long> itemIds = null;
            if (!result.hasProperty(ITEMIDS_FILED)) {
                continue;
            }
            try {
                itemIds = (List<Long>)result.getProperty(ITEMIDS_FILED);
            } catch (ClassCastException e) {
                try {
                    itemIds = new ArrayList<Long>();
                    itemIds.add((Long)result.getProperty(ITEMIDS_FILED));
                }
                catch(Exception ex) {
                    log(e.getMessage());
                }
            }
            
            if (itemIds == null) {
                continue;
            }
            for (Long itemId : itemIds) {
                if (itemId == null) {
                    continue;
                }
                if (!isCatalogIdEvent) {
                    if (itemsMap.containsKey(itemId)) {
                        itemId = itemsMap.get(itemId).getCatalogId();
                    }
                }
                if (itemsResultMap.containsKey(itemId)) {
                    Map<String, Long> itemMap = itemsResultMap.get(itemId);
                    if (itemMap.containsKey(countKey)) {
                        Long count = itemMap.get(countKey);
                        itemMap.put(countKey, ++count);
                    }
                    else {
                        itemMap.put(countKey, 1l);
                    }
                }
                else {
                    Map<String, Long> itemMap = new HashMap<String, Long>();
                    itemMap.put(countKey, 1l);
                    itemsResultMap.put(itemId, itemMap);
                }
                String uniqueKey = sessionId + itemId;
                if (!uniqueSet.contains(uniqueKey)) {
                    Map<String, Long> itemMap = itemsResultMap.get(itemId);
                    if (itemMap.containsKey(uniqueCountKey)) {
                        Long count = itemMap.get(uniqueCountKey);
                        itemMap.put(uniqueCountKey, ++count);
                    }
                    else {
                        itemMap.put(uniqueCountKey, 1l);
                    }
                    uniqueSet.add(uniqueKey);
                }
            }
        }
    }
}