test

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package servlets;
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import java.io.IOException;
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import java.io.PrintWriter;
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import javax.servlet.RequestDispatcher;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServlet;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import com.bittercode.constant.BookStoreConstants;
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import com.bittercode.constant.db.UsersDBConstants;
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import com.bittercode.model.User;
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import com.bittercode.model.UserRole;
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import com.bittercode.service.UserService;
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import com.bittercode.service.impl.UserServiceImpl;
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public class SellerLoginServlet extends HttpServlet {
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    UserService userService = new UserServiceImpl();
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    public void doPost(HttpServletRequest req, HttpServletResponse res) throws IOException, ServletException {
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        PrintWriter pw = res.getWriter();
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        res.setContentType(BookStoreConstants.CONTENT_TYPE_TEXT_HTML);
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        String uName = req.getParameter(UsersDBConstants.COLUMN_USERNAME);
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        String pWord = req.getParameter(UsersDBConstants.COLUMN_PASSWORD);
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        try {
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            User user = userService.login(UserRole.SELLER, uName, pWord, req.getSession());
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            if (user != null) {
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                RequestDispatcher rd = req.getRequestDispatcher("SellerHome.html");
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                rd.include(req, res);
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                pw.println("    <div id=\"topmid\"><h1>Welcome to Online <br>Book Store</h1></div>\r\n"
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                        + "    <br>\r\n"
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                        + "    <table class=\"tab\">\r\n"
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                        + "        <tr>\r\n"
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                        + "            <td><p>Welcome "+user.getFirstName()+", Happy Learning !!</p></td>\r\n"
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                        + "        </tr>\r\n"
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                        + "    </table>");
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            } else {
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                RequestDispatcher rd = req.getRequestDispatcher("SellerLogin.html");
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                rd.include(req, res);
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                pw.println("<div class=\"tab\">Incorrect UserName or PassWord</div>");
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            }
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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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}