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package in.shop2020.serving.services;
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import in.shop2020.model.v1.user.User;
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import in.shop2020.model.v1.user.UserContextException;
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import in.shop2020.serving.utils.Utils;
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import in.shop2020.thrift.clients.UserContextServiceClient;
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import java.io.Serializable;
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import org.apache.thrift.TException;
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/**
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 * This class is used to cache data that is frequently accessed for displaying
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 * on the pages of the site. It implements Serializable since
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 * <a href="http://tomcat.apache.org/tomcat-5.5-doc/config/manager.html#Restart%20Persistence">Tomcat's restart persistence</a>
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 * ensures that all session attributes will be preserved across application
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 * restarts.
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 *
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 * @author Chandranshu
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 *
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 */
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public class UserSessionInfo implements Serializable{
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	/**
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	 *
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	 */
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	private static final long serialVersionUID = 1L;
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	private boolean isLoggedIn;
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	private long userId;
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	private String email;
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	private String nameOfUser;
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	private int totalItems;
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	private long cartId;
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	public UserSessionInfo(){
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		this.isLoggedIn = false;
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		this.userId = -1;
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		this.email = "";
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		this.nameOfUser = "";
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		this.totalItems = 0;
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		this.cartId = -1;
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	}
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	public UserSessionInfo(long userId, String jsessionId){
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		this();
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		UserContextServiceClient ucsc = null;
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		in.shop2020.model.v1.user.UserContextService.Client userClient = null;
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		User existingUser = null;
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		try {
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			ucsc = new UserContextServiceClient();
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			userClient = ucsc.getClient();
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			existingUser = userClient.getUserById(userId);
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			if(existingUser == null)
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				existingUser = userClient.createAnonymousUser(jsessionId);
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		} catch (UserContextException e) {
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			e.printStackTrace();
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		} catch (TException e) {
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			e.printStackTrace();
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		} catch (Exception e) {
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			e.printStackTrace();
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		}
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		initialize(existingUser);
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	}
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	public UserSessionInfo(String jsessionId) {
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		this();
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		UserContextServiceClient ucsc = null;
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		try {
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			ucsc = new UserContextServiceClient();
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			in.shop2020.model.v1.user.UserContextService.Client userClient = ucsc.getClient();
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			User anonUser = userClient.createAnonymousUser(jsessionId);
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			initialize(anonUser);
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		} catch (UserContextException e) {
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			e.printStackTrace();
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		} catch (TException e) {
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			e.printStackTrace();
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		} catch (Exception e) {
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			e.printStackTrace();
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		}
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	}
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	private void initialize(User user){
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		if(user!=null){
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			this.isLoggedIn = !user.isIsAnonymous();
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			this.userId = user.getUserId();
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			this.email = user.getEmail();
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			this.nameOfUser = user.getName();
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			this.cartId = user.getActiveCartId();
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			this.totalItems = Utils.getNumberOfItemsInCart(this.cartId);
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		}else{
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			this.isLoggedIn = false;
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			this.userId = -1;
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			this.email = "";
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			this.nameOfUser = "";
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			this.totalItems = 0;
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			this.cartId = -1;
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		}
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	}
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	public boolean isSessionId() {
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		return !isLoggedIn;
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	}
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	public boolean isLoggedIn() {
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		return isLoggedIn;
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	}
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	public void setLoggedIn(boolean isLoggedIn) {
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		this.isLoggedIn = isLoggedIn;
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	}
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	public long getUserId() {
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		return userId;
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	}
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	public void setUserId(long userId) {
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		this.userId = userId;
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	}
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	public String getEmail() {
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		return email;
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	}
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	public void setEmail(String email) {
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		this.email = email;
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	}
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	public String getNameOfUser() {
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		return nameOfUser;
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	}
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	public void setNameOfUser(String nameOfUser) {
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		this.nameOfUser = nameOfUser;
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	}
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	public int getTotalItems() {
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		return totalItems;
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	}
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	public void setTotalItems(int totalItems) {
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		this.totalItems = totalItems;
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	}
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	public long getCartId() {
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		return cartId;
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	}
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	public void setCartId(long cartId) {
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		this.cartId = cartId;
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	}
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	public String toString(){
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		StringBuffer representation = new StringBuffer();
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		representation.append("userId: " + userId + "\n");
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		representation.append("isLoggedIn: " + isLoggedIn + "\n");
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		representation.append("username: " + nameOfUser + "\n");
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		return representation.toString();
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	}
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}