Java tutorial
/* * 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 br.com.casabranca.controller; import br.com.casabranca.model.Imovel; import br.com.casabranca.model.Negocio; import br.com.casabranca.model.RelatorioLucros; import br.com.casabranca.repository.RepositorioImovel; import br.com.casabranca.repository.RepositorioNegocio; import br.com.casabranca.utils.Conversores; import com.google.gson.Gson; import com.google.gson.reflect.TypeToken; import java.io.IOException; import java.lang.reflect.Type; import java.sql.SQLException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * * @author Arthur */ @WebServlet(name = "RelatoriosController", urlPatterns = { "/Relatorios" }) public class RelatoriosController 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, Exception { String relatorio = request.getParameter("relatorio"); String d1 = request.getParameter("dataInicial"); String d2 = request.getParameter("dataFinal"); Date dataInicial = Conversores.formataData(d1); Date dataFinal = Conversores.formataData(d2); String tipo = request.getParameter("tipo"); if (relatorio.equals("financeiro")) { try { relatorioFinanceiro(dataInicial, dataFinal, tipo, response); } catch (SQLException | ClassNotFoundException | IOException ex) { /* */ Object coisa = null; } } else if (relatorio.equals("imovel")) { try { relatorioImovel(dataInicial, dataFinal, tipo, response); } catch (Exception ex) { /* */ Object coisa = null; } } } // <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 (Exception ex) { Logger.getLogger(RelatoriosController.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 (Exception ex) { Logger.getLogger(RelatoriosController.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> private void relatorioFinanceiro(Date dataInicial, Date dataFinal, String tipo, HttpServletResponse response) throws SQLException, ClassNotFoundException, IOException { List<Negocio> negocios = new RepositorioNegocio().getAll(dataInicial, dataFinal); ArrayList<RelatorioLucros> relatorio = new ArrayList<>(); for (Negocio negocio : negocios) { RelatorioLucros rel = new RelatorioLucros(); rel.setAgrupador(tipo.equals("corretor") ? negocio.getUsuario().getPessoa().getNome() : negocio.getUsuario().getUnidade().getDescricao()); rel.setPeriodo(new SimpleDateFormat("MM/yyyy").format(negocio.getDataNegocio())); rel.setValor(negocio.getImovel().getValor()); if (relatorio.contains(rel)) { RelatorioLucros incluido = relatorio.get(relatorio.indexOf(rel)); incluido.setValor(incluido.getValor() + rel.getValor()); } else { relatorio.add(rel); } } // List<RelatorioLucros> relatorio = new ArrayList<>(); // // for (int i = 1; i <= 5; i++) { // for (int j = 1; j <= 12; j++) { // RelatorioLucros rel = new RelatorioLucros(); // rel.setAgrupador("Usuario " + i); // rel.setPeriodo(j + "/2016"); // rel.setValor(Math.round(Math.random() * j)); // relatorio.add(rel); // } // // } Type listType = new TypeToken<ArrayList<RelatorioLucros>>() { }.getType(); String result = new Gson().toJson(relatorio, listType); response.setContentType("application/json"); response.setCharacterEncoding("UTF-8"); response.getWriter().write(result); } private boolean imovelNegociado(List<Negocio> negocios, Imovel imovel) { for (Negocio negocio : negocios) { if (negocio.getIdImovel() == imovel.getId()) { return true; } } return false; } private void relatorioImovel(Date dataInicial, Date dataFinal, String tipo, HttpServletResponse response) throws SQLException, ClassNotFoundException, IOException { List<Negocio> negocios = new RepositorioNegocio().getAll(dataInicial, dataFinal); if (tipo.equals("todos")) { List<Imovel> imoveis = new RepositorioImovel().getAll(); int dif = imoveis.size() - negocios.size(); if (dif > 0) { for (Imovel imovel : imoveis) { if (!imovelNegociado(negocios, imovel)) { Negocio novo = new Negocio(); novo.setIdImovel(imovel.getId()); novo.setImovel(imovel); negocios.add(novo); } } } } Type listType = new TypeToken<ArrayList<Negocio>>() { }.getType(); String result = new Gson().toJson(negocios, listType); response.setContentType("application/json"); response.setCharacterEncoding("UTF-8"); response.getWriter().write(result); } }