Java tutorial
/* * The MIT License * * Copyright 2012 J. David Mendoza <jdmendoza@um.edu.mx>. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package mx.edu.um.mateo.general.web; import java.util.HashMap; import java.util.List; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.validation.Valid; import mx.edu.um.mateo.general.dao.ClienteDao; import mx.edu.um.mateo.general.dao.TipoClienteDao; import mx.edu.um.mateo.general.model.Cliente; import mx.edu.um.mateo.general.model.Usuario; import mx.edu.um.mateo.general.utils.Constantes; import mx.edu.um.mateo.general.utils.ReporteException; import org.apache.commons.lang.StringUtils; import org.hibernate.exception.ConstraintViolationException; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.validation.BindingResult; import org.springframework.validation.Errors; import org.springframework.validation.ObjectError; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.servlet.mvc.support.RedirectAttributes; /** * * @author J. David Mendoza <jdmendoza@um.edu.mx> */ @Controller @RequestMapping("/admin/cliente") public class ClienteController extends BaseController { @Autowired private ClienteDao clienteDao; @Autowired private TipoClienteDao tipoClienteDao; @SuppressWarnings("unchecked") @RequestMapping public String lista(HttpServletRequest request, HttpServletResponse response, @RequestParam(required = false) String filtro, @RequestParam(required = false) Long pagina, @RequestParam(required = false) String tipo, @RequestParam(required = false) String correo, @RequestParam(required = false) String order, @RequestParam(required = false) String sort, Model modelo) { log.debug("Mostrando lista de clientes"); Map<String, Object> params = new HashMap<>(); Long empresaId = (Long) request.getSession().getAttribute("empresaId"); params.put("empresa", empresaId); if (StringUtils.isNotBlank(filtro)) { params.put("filtro", filtro); } if (StringUtils.isNotBlank(order)) { params.put("order", order); params.put("sort", sort); } if (pagina != null) { params.put("pagina", pagina); } if (StringUtils.isNotBlank(tipo)) { params.put("reporte", true); params = clienteDao.lista(params); try { generaReporte(tipo, (List<Cliente>) params.get("clientes"), response, "clientes", Constantes.EMP, empresaId); return null; } catch (ReporteException e) { log.error("No se pudo generar el reporte", e); } } if (StringUtils.isNotBlank(correo)) { params.put("reporte", true); params = clienteDao.lista(params); params.remove("reporte"); try { enviaCorreo(correo, (List<Cliente>) params.get("clientes"), request, "clientes", Constantes.EMP, empresaId); modelo.addAttribute("message", "lista.enviado.message"); modelo.addAttribute("messageAttrs", new String[] { messageSource.getMessage("cliente.lista.label", null, request.getLocale()), ambiente.obtieneUsuario().getUsername() }); } catch (ReporteException e) { log.error("No se pudo enviar el reporte por correo", e); } } params = clienteDao.lista(params); modelo.addAttribute("clientes", params.get("clientes")); this.pagina(params, modelo, "clientes", pagina); return "admin/cliente/lista"; } @RequestMapping("/ver/{id}") public String ver(@PathVariable Long id, Model modelo) { log.debug("Mostrando cliente {}", id); Cliente cliente = clienteDao.obtiene(id); modelo.addAttribute("cliente", cliente); return "admin/cliente/ver"; } @RequestMapping("/nuevo") public String nuevo(HttpServletRequest request, Model modelo) { log.debug("Nuevo cliente"); Cliente cliente = new Cliente(); modelo.addAttribute("cliente", cliente); Map<String, Object> params = new HashMap<>(); params.put("empresa", request.getSession().getAttribute("empresaId")); params.put("reporte", true); params = tipoClienteDao.lista(params); modelo.addAttribute("tiposDeCliente", params.get("tiposDeCliente")); return "admin/cliente/nuevo"; } @RequestMapping(value = "/crea", method = RequestMethod.POST) public String crea(HttpServletRequest request, HttpServletResponse response, @Valid Cliente cliente, BindingResult bindingResult, Errors errors, Model modelo, RedirectAttributes redirectAttributes) { for (String nombre : request.getParameterMap().keySet()) { log.debug("Param: {} : {}", nombre, request.getParameterMap().get(nombre)); } if (bindingResult.hasErrors()) { log.debug("Hubo algun error en la forma, regresando"); Map<String, Object> params = new HashMap<>(); params.put("empresa", request.getSession().getAttribute("empresaId")); params.put("reporte", true); params = tipoClienteDao.lista(params); modelo.addAttribute("tiposDeCliente", params.get("tiposDeCliente")); return "admin/cliente/nuevo"; } try { Usuario usuario = ambiente.obtieneUsuario(); log.debug("TipoCliente: {}", cliente.getTipoCliente().getId()); cliente = clienteDao.crea(cliente, usuario); } catch (ConstraintViolationException e) { log.error("No se pudo crear al cliente", e); errors.rejectValue("nombre", "campo.duplicado.message", new String[] { "nombre" }, null); Map<String, Object> params = new HashMap<>(); params.put("empresa", request.getSession().getAttribute("empresaId")); params.put("reporte", true); params = tipoClienteDao.lista(params); modelo.addAttribute("tiposDeCliente", params.get("tiposDeCliente")); return "admin/cliente/nuevo"; } redirectAttributes.addFlashAttribute("message", "cliente.creado.message"); redirectAttributes.addFlashAttribute("messageAttrs", new String[] { cliente.getNombre() }); return "redirect:/admin/cliente/ver/" + cliente.getId(); } @RequestMapping("/edita/{id}") public String edita(HttpServletRequest request, @PathVariable Long id, Model modelo) { log.debug("Edita cliente {}", id); Cliente cliente = clienteDao.obtiene(id); modelo.addAttribute("cliente", cliente); Map<String, Object> params = new HashMap<>(); params.put("empresa", request.getSession().getAttribute("empresaId")); params.put("reporte", true); params = tipoClienteDao.lista(params); modelo.addAttribute("tiposDeCliente", params.get("tiposDeCliente")); return "admin/cliente/edita"; } @RequestMapping(value = "/actualiza", method = RequestMethod.POST) public String actualiza(HttpServletRequest request, @Valid Cliente cliente, BindingResult bindingResult, Errors errors, Model modelo, RedirectAttributes redirectAttributes) { if (bindingResult.hasErrors()) { log.error("Hubo algun error en la forma, regresando"); Map<String, Object> params = new HashMap<>(); params.put("empresa", request.getSession().getAttribute("empresaId")); params.put("reporte", true); params = tipoClienteDao.lista(params); modelo.addAttribute("tiposDeCliente", params.get("tiposDeCliente")); return "admin/cliente/edita"; } try { Usuario usuario = ambiente.obtieneUsuario(); cliente = clienteDao.actualiza(cliente, usuario); } catch (ConstraintViolationException e) { log.error("No se pudo crear la cliente", e); errors.rejectValue("nombre", "campo.duplicado.message", new String[] { "nombre" }, null); Map<String, Object> params = new HashMap<>(); params.put("empresa", request.getSession().getAttribute("empresaId")); params.put("reporte", true); params = tipoClienteDao.lista(params); modelo.addAttribute("tiposDeCliente", params.get("tiposDeCliente")); return "admin/cliente/nuevo"; } redirectAttributes.addFlashAttribute("message", "cliente.actualizado.message"); redirectAttributes.addFlashAttribute("messageAttrs", new String[] { cliente.getNombre() }); return "redirect:/admin/cliente/ver/" + cliente.getId(); } @RequestMapping(value = "/elimina", method = RequestMethod.POST) public String elimina(HttpServletRequest request, @RequestParam Long id, Model modelo, @ModelAttribute Cliente cliente, BindingResult bindingResult, RedirectAttributes redirectAttributes) { log.debug("Elimina cliente"); try { String nombre = clienteDao.elimina(id); redirectAttributes.addFlashAttribute("message", "cliente.eliminado.message"); redirectAttributes.addFlashAttribute("messageAttrs", new String[] { nombre }); } catch (Exception e) { log.error("No se pudo eliminar la cliente " + id, e); bindingResult.addError( new ObjectError("cliente", new String[] { "cliente.no.eliminado.message" }, null, null)); return "admin/cliente/ver"; } return "redirect:/admin/cliente"; } }