Java tutorial
/** * This file is part of Location Service :: Admin. Copyright (C) 2014 Petteri * Kivimki * * Location Service :: Admin is free software: you can redistribute it and/or * modify it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or (at your * option) any later version. * * Location Service :: Admin is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General * Public License for more details. * * You should have received a copy of the GNU General Public License along with * Location Service :: Admin. If not, see <http://www.gnu.org/licenses/>. */ package com.pkrete.locationservice.admin.controller.mvc; import com.pkrete.locationservice.admin.converter.ConverterService; import com.pkrete.locationservice.admin.exception.ObjectNotFoundException; import com.pkrete.locationservice.admin.model.illustration.Map; import com.pkrete.locationservice.admin.model.language.Language; import com.pkrete.locationservice.admin.model.owner.Owner; import com.pkrete.locationservice.admin.service.MapsService; import com.pkrete.locationservice.admin.util.Settings; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.ui.ModelMap; import org.springframework.web.servlet.ModelAndView; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.validation.BindingResult; import org.springframework.validation.Validator; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.SessionAttributes; /** * The {@link EditMapController EditMapController} handles the requests that are * related to editing an map object and then saving it to the database. This * class extends abstract {@link BaseController BaseLocationController} class. * * @author Petteri Kivimki */ @Controller @RequestMapping("/editmap.htm") @SessionAttributes("map") public class EditMapController extends BaseController { @Autowired @Qualifier("mapsService") private MapsService mapsService; @Autowired @Qualifier("mapValidator") private Validator validator; @Autowired @Qualifier("converterService") private ConverterService converterService; @RequestMapping(method = RequestMethod.POST) public ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, @ModelAttribute("map") Map map, BindingResult result) throws Exception { validator.validate(map, result); if (result.hasErrors()) { ModelMap model = new ModelMap(); model.put("languages", Language.toMap(getOwner(request).getLanguages())); model.put("external", map.getIsExternal()); model.put("mapsPath", map.getIsExternal() ? "" : Settings.getInstance().getMapsWebPath(getOwner(request).getCode())); return new ModelAndView("edit_map", model); } String mapId = request.getParameter("mapId"); // Set update operator map.setUpdater(getUser(request).getUsername()); // Update map if (!mapsService.update(map)) { throw new Exception("Updating map failed."); } return new ModelAndView("redirect:illustrations.htm?select_map=" + mapId); } @RequestMapping(method = RequestMethod.GET) public String initializeForm(HttpServletRequest request, ModelMap model) throws Exception { // Form backing object String id = request.getParameter("mapId"); Owner owner = getOwner(request); Map map = mapsService.get(this.converterService.strToInt(id), owner); if (map == null) { throw new ObjectNotFoundException(new StringBuilder("Map not found. {\"id\":").append(id) .append(",\"owner\":\"").append(owner.getCode()).append("\"}").toString()); } if (map.getIsExternal()) { map.setUrl(map.getPath()); } else { map.createFilesMap(owner.getLanguages()); } map.setOwner(owner); model.put("map", map); // Other reference data model.put("languages", Language.toMap(owner.getLanguages())); model.put("external", map.getIsExternal()); model.put("mapsPath", map.getIsExternal() ? "" : Settings.getInstance().getMapsWebPath(owner.getCode())); return "edit_map"; } }