com.dmr.project.controller.TransformerHandler.java Source code

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Here is the source code for com.dmr.project.controller.TransformerHandler.java

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/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package com.dmr.project.controller;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.google.gson.*;
import com.dmr.project.dao.Transformers;
import java.util.ArrayList;
import java.sql.PreparedStatement;

/**
 *
 * @author root
 */
public class TransformerHandler 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, SQLException {
        String[] area;
        area = request.getParameterValues("area[]");
        Transformers transformersList = new Transformers();
        ResultSet rs = transformersList.getTransformers(area);
        //String transformer = request.getParameter("transformer");
        //        for(int i=0;i < area.length;i++){
        //            System.out.println("ss" + area[i]);
        //        }

        //            Transformers transformersList = new Transformers();
        //            ResultSet rs = transformersList.getData(area);
        //
        JsonObject jsonResponse = new JsonObject();
        JsonArray data = new JsonArray();
        while (rs.next()) {
            JsonArray row = new JsonArray();
            row.add(new JsonPrimitive(rs.getString("location")));
            data.add(row);
        }
        jsonResponse.add("data", data);

        response.setContentType("application/json");
        try (PrintWriter out = response.getWriter()) {

            out.print(jsonResponse);
            out.flush();
        }

        //            }
        //        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 NewServlet</title>");
        //            out.println("</head>");
        //            out.println("<body>");
        //            out.println("Output"+area);
        //            out.println(area.length);
        //
        ////            for (int i = 0; i < area.length ; i++) {
        ////                out.println(area[i]);
        ////            }
        ////            while(rs.next ()){
        ////                String temp = rs.getString("location");
        ////                out.println("Location: "+temp);
        ////            }
        //            
        //            out.println("Output"+rs);
        //            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
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        try {
            processRequest(request, response);
        } catch (SQLException ex) {
            Logger.getLogger(TransformerHandler.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

    /**
     * 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 {
        try {
            processRequest(request, response);
        } catch (SQLException ex) {
            Logger.getLogger(TransformerHandler.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

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

}