Java tutorial
/* * The MIT License * * Copyright 2012 Universidad de Montemorelos A. C. * * 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.rh.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.model.Usuario; import mx.edu.um.mateo.general.utils.Constantes; import mx.edu.um.mateo.general.utils.ObjectRetrievalFailureException; import mx.edu.um.mateo.general.utils.ReporteException; import mx.edu.um.mateo.general.web.BaseController; import mx.edu.um.mateo.rh.model.Empleado; import mx.edu.um.mateo.rh.model.NivelEstudios; import mx.edu.um.mateo.rh.service.EmpleadoManager; 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 osoto@um.edu.mx */ @Controller @RequestMapping("/rh/empleado") public class EmpleadoController extends BaseController { @Autowired private EmpleadoManager empleadoManager; public EmpleadoController() { log.info("Se ha creado una nueva instancia de EmpleadoController"); } @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 empleados"); 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 = empleadoManager.lista(params); try { generaReporte(tipo, (List<Empleado>) params.get(Constantes.EMPLEADO_LIST), response, "empleados", 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 = empleadoManager.lista(params); params.remove("reporte"); try { enviaCorreo(correo, (List<Empleado>) params.get(Constantes.EMPLEADO_LIST), request, "empleados", Constantes.EMP, empresaId); modelo.addAttribute("message", "lista.enviada.message"); modelo.addAttribute("messageAttrs", new String[] { messageSource.getMessage("empleado.lista.label", null, request.getLocale()), ambiente.obtieneUsuario().getUsername() }); } catch (ReporteException e) { log.error("No se pudo enviar el reporte por correo", e); } } params = empleadoManager.lista(params); modelo.addAttribute(Constantes.EMPLEADO_LIST, params.get(Constantes.EMPLEADO_LIST)); this.pagina(params, modelo, Constantes.EMPLEADO_LIST, pagina); return Constantes.PATH_EMPLEADO_LISTA; } @RequestMapping("/ver/{id}") public String ver(HttpServletRequest request, @PathVariable Long id, Model modelo) throws ObjectRetrievalFailureException { log.debug("Mostrando empleado {}", id); Empleado empleado = empleadoManager.obtiene(id); modelo.addAttribute(Constantes.EMPLEADO_KEY, empleado); request.getSession().setAttribute(Constantes.EMPLEADO_KEY, empleado); return Constantes.PATH_EMPLEADO_VER; } @RequestMapping("/nuevo") public String nuevo(Model modelo) { log.debug("Nuevo empleado"); Empleado empleado = new Empleado(); modelo.addAttribute(Constantes.EMPLEADO_KEY, empleado); modelo.addAttribute(Constantes.NIVELESTUDIOS_LIST, NivelEstudios.values()); return Constantes.PATH_EMPLEADO_NUEVO; } @RequestMapping(value = "/graba", method = RequestMethod.POST) public String graba(HttpServletRequest request, HttpServletResponse response, @Valid Empleado empleado, 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"); for (ObjectError error : bindingResult.getAllErrors()) { log.debug("Error: {}", error); } return Constantes.PATH_EMPLEADO_NUEVO; } try { Usuario usuario = ambiente.obtieneUsuario(); empleadoManager.saveEmpleado(empleado, usuario); ambiente.actualizaSesion(request.getSession(), usuario); } catch (ConstraintViolationException e) { log.error("No se pudo crear al empleado", e); errors.rejectValue("nombre", "empleado.errors.creado", e.toString()); return Constantes.PATH_EMPLEADO_NUEVO; } redirectAttributes.addFlashAttribute("message", "empleado.creado.message"); redirectAttributes.addFlashAttribute("messageAttrs", new String[] { empleado.getNombre() }); return "redirect:" + Constantes.PATH_EMPLEADO; } @RequestMapping("/edita/{id}") public String edita(@PathVariable Long id, HttpServletRequest request, @Valid Empleado empleado, BindingResult bindingResult, Errors errors, Model modelo, RedirectAttributes redirectAttributes) { log.debug("Edita empleado {}", id); try { empleado = empleadoManager.obtiene(id); } catch (ObjectRetrievalFailureException ex) { log.error("No se pudo obtener al empleado", ex); errors.rejectValue("empleado", "registro.noEncontrado", new String[] { "empleado" }, null); return Constantes.PATH_EMPLEADO; } modelo.addAttribute(Constantes.EMPLEADO_KEY, empleado); return Constantes.PATH_EMPLEADO_EDITA; } @RequestMapping(value = "/elimina", method = RequestMethod.POST) public String elimina(HttpServletRequest request, @RequestParam Long id, Model modelo, @ModelAttribute Empleado empleado, BindingResult bindingResult, RedirectAttributes redirectAttributes) { log.debug("Elimina empleado"); try { Long empresaId = (Long) request.getSession().getAttribute("empresaId"); String nombre = empleadoManager.elimina(id); ambiente.actualizaSesion(request.getSession()); redirectAttributes.addFlashAttribute("message", "empleado.eliminado.message"); redirectAttributes.addFlashAttribute("messageAttrs", new String[] { nombre }); } catch (Exception e) { log.error("No se pudo eliminar el empleado " + id, e); bindingResult.addError( new ObjectError("empleado", new String[] { "empleado.no.eliminado.message" }, null, null)); return Constantes.PATH_EMPLEADO_VER; } return "redirect:" + Constantes.PATH_EMPLEADO; } @RequestMapping("/datos/{id}") public String datos(@PathVariable Long id, Model modelo) throws ObjectRetrievalFailureException { log.debug("Mostrando empleado {}", id); Empleado empleado = empleadoManager.obtiene(id); modelo.addAttribute(Constantes.EMPLEADO_KEY, empleado); return "/rh/empleado/datos"; } }