Subversion Repositories SmartDukaan

package in.shop2020.serving.services;

import in.shop2020.model.v1.user.Cart;

import in.shop2020.model.v1.user.User;

import in.shop2020.model.v1.user.UserContextException;

import in.shop2020.serving.interceptors.UserInterceptor;

import in.shop2020.serving.utils.DesEncrypter;

import in.shop2020.thrift.clients.UserClient;

import java.io.Serializable;

import org.apache.log4j.Logger;

import org.apache.thrift.TException;

import com.google.gson.Gson;

/**

 * This class is used to cache data that is frequently accessed for displaying

 * on the pages of the site. It implements Serializable since

 * <a href="http://tomcat.apache.org/tomcat-5.5-doc/config/manager.html#Restart%20Persistence">Tomcat's restart persistence</a>

 * ensures that all session attributes will be preserved across application

 * restarts.

 * 

 * @author Chandranshu

 * 

 */

@SuppressWarnings("serial")

public class UserSessionInfo implements Serializable{

    private static Logger logger = Logger.getLogger(UserSessionInfo.class);

	/**

	 * 

	 */

	private boolean isLoggedIn;

	private long userId;

	private String email;

	private String nameOfUser;

	private int totalItems;

	private long cartId;

	private String pincode;

	private double totalAmount;

	public UserSessionInfo(){

		this.isLoggedIn = false;

		this.userId = -1;

		this.email = "";

		this.nameOfUser = "";

		this.totalItems = 0;

		this.cartId = -1;

		this.pincode = "110001";

		this.totalAmount = 0;

	}

	public UserSessionInfo(long userId, String jsessionId){

		this();

		try {

		    UserClient ucsc = new UserClient();

		    in.shop2020.model.v1.user.UserContextService.Client userClient = ucsc.getClient();

		    User existingUser = userClient.getUserById(userId);

			if(existingUser != null && existingUser.getUserId() != -1){

				Cart cart = userClient.getCart(existingUser.getActiveCartId());

    			totalItems = cart.getLinesSize();

    			totalAmount = cart.getTotalPrice();

    			pincode = userClient.getDefaultPincode(existingUser.getUserId());

    			initialize(existingUser, totalItems, pincode, totalAmount);

			}

		} catch (UserContextException e) {

		    logger.error("Unable to get user info from user service: ", e);

		} catch (TException e) {

		    logger.error("Unable to get user info from user service: ", e);

		} catch (Exception e) {

		    logger.error("Unexpected exception: ", e);

		}	

	}

	public UserSessionInfo(String jsessionId) {

		this();

		UserClient ucsc = null;

		try {

			ucsc = new UserClient();

			in.shop2020.model.v1.user.UserContextService.Client userClient = ucsc.getClient();

			User anonUser = userClient.createAnonymousUser(jsessionId);

			Cart cart = userClient.getCart(anonUser.getActiveCartId());

			int totalItems = cart.getLinesSize();

			double totalAmount = cart.getTotalPrice();

			pincode = userClient.getDefaultPincode(anonUser.getUserId());

			initialize(anonUser, totalItems, pincode, totalAmount);

		} catch (UserContextException e) {

		    logger.error("Unable to get user info from user service: ", e);

		} catch (TException e) {

		    logger.error("Unable to get user info from user service: ", e);

		} catch (Exception e) {

		    logger.error("Unexpected exception: ", e);

		}

	}

	private void initialize(User user, int totalItems, String pincode, double totalAmount){

		if(user!=null){

			this.isLoggedIn = !user.isIsAnonymous();

			this.userId = user.getUserId();

			this.email = user.getEmail();

			this.nameOfUser = user.getName();

			this.cartId = user.getActiveCartId();

			this.totalItems = totalItems;

			this.pincode = pincode;

			this.totalAmount = totalAmount;

		}else{

			this.isLoggedIn = false;

			this.userId = -1;

			this.email = "";

			this.nameOfUser = "";

			this.totalItems = 0;

			this.cartId = -1;

			this.pincode = pincode;

			this.totalAmount = 0;

		}			

	}

	public boolean isSessionId() {

		return !isLoggedIn;

	}

	public boolean isLoggedIn() {

		return isLoggedIn;

	}

	public void setLoggedIn(boolean isLoggedIn) {

		this.isLoggedIn = isLoggedIn;

	}

	public long getUserId() {

		return userId;

	}

	public void setUserId(long userId) {

		this.userId = userId;

	}

	public String getEmail() {

		return email;

	}

	public void setEmail(String email) {

		this.email = email;

	}

	public String getNameOfUser() {

		return nameOfUser;

	}

	public void setNameOfUser(String nameOfUser) {

		this.nameOfUser = nameOfUser;

	}

	public int getTotalItems() {

		return totalItems;

	}

	public void setTotalItems(int totalItems) {

		this.totalItems = totalItems;

	}

	public long getCartId() {

		return cartId;

	}

	public void setCartId(long cartId) {

		this.cartId = cartId;

	}	

	public String getPincode() {

		return pincode;

	}

	public void setPincode(String pincode) {

		this.pincode = pincode;

	}

	public void setTotalAmount(double totalAmount) {

		this.totalAmount = totalAmount;

	}

	public double getTotalAmount() {

		return totalAmount;

	}

	public static String getUserinfoCookieValueFromUserSessionInfo(UserSessionInfo userinfo){

		DesEncrypter desEncrypter = new DesEncrypter(UserInterceptor.COOKIE_DECRYPTION_STRING);

		Gson gson = new Gson();

		return desEncrypter.encrypt(gson.toJson(userinfo));

	}

	public static UserSessionInfo getUserSessionInfoFromCookieValue(String jsonString){

		DesEncrypter desEncrypter = new DesEncrypter(UserInterceptor.COOKIE_DECRYPTION_STRING);

		Gson gson = new Gson();

		UserSessionInfo userinfo = null;

		try{

			userinfo = gson.fromJson(desEncrypter.decrypt(jsonString), UserSessionInfo.class);

			//As we are adding a new field in the cookie. So to populate this field for existing users

			if(userinfo.getTotalAmount() == 0 && userinfo.getTotalItems() != 0 ){

				try {

					UserClient ucsc = new UserClient();

					in.shop2020.model.v1.user.UserContextService.Client userClient = ucsc.getClient();

					Cart cart = userClient.getCart(userinfo.getCartId());

					userinfo.setTotalItems(cart.getLinesSize());

					userinfo.setTotalAmount(cart.getTotalPrice());

				}catch (Exception e) {

					logger.error("Unable to update total amount in userinfo object from database.", e);		

				}

			}

		}catch (Exception e) {

		    logger.error("Unable to get the userinfo object from the JSON string because of", e);

		}

		if(userinfo==null){

		    userinfo = new UserSessionInfo();

		}

		return userinfo;

	}

	@Override

	public String toString() {

		return "UserSessionInfo [isLoggedIn=" + isLoggedIn + ", userId="

				+ userId + ", email=" + email + ", nameOfUser=" + nameOfUser

				+ ", totalItems=" + totalItems + ", cartId=" + cartId

				+ ", pincode=" + pincode + ", totalAmount=" + totalAmount + "]";

	}

	public static void main(String[] args) {

		System.out.println();

		String cookieValue = "fG0CKt4DUD_D9iP1Ero0v2Io1AgVLoGqXDp0NWAPkzZuw3zHKot5owJK6IodZQfE2aS-obOK3BwXUNRirVHDyd-ycsyG4GfBPd0Ypl1MkxuVBmY4csB0FEg_IgWUm9GaGEzvtmmiZ5bE24XlpUPqR4AoTUAp8d92DDTG61FOFktDIGg3L0Tyk4qpVlAU3xQ3";

		UserSessionInfo uinfo = UserSessionInfo.getUserSessionInfoFromCookieValue(cookieValue);

		System.out.println(uinfo);

	}

}