Java tutorial
/* * Copyright 2002-2013 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.branded.holdings.qpc.web; import java.util.Collection; import java.util.Map; import javax.validation.Valid; 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.web.bind.WebDataBinder; import org.springframework.web.bind.annotation.InitBinder; 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.SessionAttributes; import org.springframework.web.bind.support.SessionStatus; import org.springframework.web.servlet.ModelAndView; import com.branded.holdings.qpc.model.Owner; import com.branded.holdings.qpc.service.ClinicService; /** * @author Juergen Hoeller * @author Ken Krebs * @author Arjen Poutsma * @author Michael Isvy */ @Controller @SessionAttributes(types = Owner.class) public class OwnerController { private final ClinicService clinicService; @Autowired public OwnerController(ClinicService clinicService) { this.clinicService = clinicService; } @InitBinder public void setAllowedFields(WebDataBinder dataBinder) { dataBinder.setDisallowedFields("id"); } @RequestMapping(value = "/owners/new", method = RequestMethod.GET) public String initCreationForm(Map<String, Object> model) { Owner owner = new Owner(); model.put("owner", owner); return "owners/createOrUpdateOwnerForm"; } @RequestMapping(value = "/owners/new", method = RequestMethod.POST) public String processCreationForm(@Valid Owner owner, BindingResult result, SessionStatus status) { if (result.hasErrors()) { return "owners/createOrUpdateOwnerForm"; } else { this.clinicService.saveOwner(owner); status.setComplete(); return "redirect:/owners/" + owner.getId(); } } @RequestMapping(value = "/owners/find", method = RequestMethod.GET) public String initFindForm(Map<String, Object> model) { model.put("owner", new Owner()); return "owners/findOwners"; } @RequestMapping(value = "/owners", method = RequestMethod.GET) public String processFindForm(Owner owner, BindingResult result, Map<String, Object> model) { // allow parameterless GET request for /owners to return all records if (owner.getLastName() == null) { owner.setLastName(""); // empty string signifies broadest possible search } // find owners by last name Collection<Owner> results = this.clinicService.findOwnerByLastName(owner.getLastName()); if (results.isEmpty()) { // no owners found result.rejectValue("lastName", "notFound", "not found"); return "owners/findOwners"; } else if (results.size() == 1) { // 1 owner found owner = results.iterator().next(); return "redirect:/owners/" + owner.getId(); } else { // multiple owners found model.put("selections", results); return "owners/ownersList"; } } @RequestMapping(value = "/owners/{ownerId}/edit", method = RequestMethod.GET) public String initUpdateOwnerForm(@PathVariable("ownerId") int ownerId, Model model) { Owner owner = this.clinicService.findOwnerById(ownerId); model.addAttribute(owner); return "owners/createOrUpdateOwnerForm"; } @RequestMapping(value = "/owners/{ownerId}/edit", method = RequestMethod.PUT) public String processUpdateOwnerForm(@Valid Owner owner, BindingResult result, SessionStatus status) { if (result.hasErrors()) { return "owners/createOrUpdateOwnerForm"; } else { this.clinicService.saveOwner(owner); status.setComplete(); return "redirect:/owners/{ownerId}"; } } /** * Custom handler for displaying an owner. * * @param ownerId the ID of the owner to display * @return a ModelMap with the model attributes for the view */ @RequestMapping("/owners/{ownerId}") public ModelAndView showOwner(@PathVariable("ownerId") int ownerId) { ModelAndView mav = new ModelAndView("owners/ownerDetails"); mav.addObject(this.clinicService.findOwnerById(ownerId)); return mav; } }