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/*
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 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 *
 * @author Abhishek
 */
public class searchContractor extends HttpServlet {

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet searchContractor</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet searchContractor at " + request.getContextPath() + "</h1>");
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    private static String dbURL = "jdbc:derby://localhost:1527/assignment;create=true;user=abhishek;password=abhishek";
    private static String tableName = "contractor_details";
    // jdbc Connection
    private static Connection conn = null;
    private static Statement stmt = null;

    private static void createConnection()
    {
        try
        {
            Class.forName("org.apache.derby.jdbc.ClientDriver").newInstance();
            //Get a connection
            conn = DriverManager.getConnection(dbURL);
        }
        catch (Exception except)
        {
            except.printStackTrace();
        }
    }
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        PrintWriter out = response.getWriter();
        String contractor_name = (request.getParameter("contractor_name"));

        createConnection();
        try
        {
            stmt = conn.createStatement();
            ResultSet rs = stmt.executeQuery("select * from " + tableName + " where contractor_name LIKE '"+contractor_name+"%'");
            while(rs.next()){
            //Retrieve by column name
            int id  = rs.getInt("contractor_id");
            String name = rs.getString("contractor_name");
            int bid_cost = rs.getInt("bid_cost");
            String materials_used = rs.getString("materials_used");
            //String estimated_completion_date = rs.getString("estimated_completion_date");
            //Display values
            out.print("ID: " + id);
            out.print(", CONTRACTOR_NAME: " + name);
            out.print(", BID_COST: " + bid_cost);
            out.print(", MATERIALS_USED: " + materials_used);
            //System.out.print(", ESTIMATED_COMPLETION_DATE: " + estimated_completion_date);
            out.println("");
            }
            rs.close();
            stmt.close();
        }
        catch (SQLException sqlExcept)
        {
            sqlExcept.printStackTrace();
        }

        try
        {
            if (stmt != null)
            {
                stmt.close();
            }
            if (conn != null)
            {
                DriverManager.getConnection(dbURL + ";shutdown=true");
                conn.close();
            }
        }
        catch (SQLException sqlExcept)
        {

        }

    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}