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package com;

import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;

import mixer.*;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import mixer.Mixer;

/**
 * Servlet implementation class Ass32
 */
@WebServlet("/Ass32")
public class Ass32 extends HttpServlet {
    private static final long serialVersionUID = 1L;
    private static String htmlTemplate = null;


    public void init() throws ServletException {
        if (htmlTemplate == null) {
            try {
                htmlTemplate = Mixer.getContent(new File(getServletContext().getRealPath("/index.html")));
            } catch (NullPointerException e) {
                e.printStackTrace();
            }

        }
    }

    public Ass32() {
        super();
        // TODO Auto-generated constructor stub
    }

    /**
     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        String jsp = Mixer.getContent(new File(getServletContext().getRealPath("/index.html")));
        Mixer m = new Mixer(jsp);

        m.add("===name===", "Richmond");

        Map map = System.getenv();
        String p1 = null;
        String p2 = null;
        String p3 = null;
        String p4 = null;

        Set keys = map.keySet();
        Iterator iterator = keys.iterator();
        while (iterator.hasNext()) {
          String key = (String) iterator.next();
          String value = (String) map.get(key);
          p1 = ("==="+key+"===");
          p2 = ("==="+value+"===");
          p3 = ("===key===");
          p4 = ("===value===");

          m.add("<!--===xxx===-->",p3,p1);
          m.add("<!--===xxx===-->",p4, p2);

        }

        String str = m.getMix();
        out.println(str);
    }

    /**
     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
    }

}