package com.zetcode.web;

import com.zetcode.bean.Country;

import com.zetcode.service.CountryService;

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 java.io.IOException;

import java.util.List;

import java.util.Optional;

@WebServlet(name = "ReadCountries", urlPatterns = {"/read"})

public class ReadCountries extends HttpServlet {

@Override

protected void doGet(HttpServletRequest request, HttpServletResponse response)

throws ServletException, IOException {

response.setContentType("text/html;charset=UTF-8");

Optional<List<Country>> countries = CountryService.getListOfCountries();

String templateName;

if (countries.isPresent()) {

request.setAttribute("countries", countries.get());

templateName = "listCountries.jsp";

} else {

templateName = "showError.jsp";

}

var dispatcher = request.getRequestDispatcher(templateName);

dispatcher.forward(request, response);

}

}