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.model.location.Library; import com.pkrete.locationservice.admin.model.owner.Owner; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.validation.BindingResult; import org.springframework.web.bind.annotation.RequestMapping; 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; import org.springframework.web.servlet.ModelAndView; /** * The {@link AddLibraryController AddLibraryController} handles the requests * that are related to adding a new library to the database. This class extends * abstract {@link HandleLocationController HandleLocationController} class. * * @author Petteri Kivimki */ @Controller @RequestMapping("/addlibrary.htm") @SessionAttributes("library") public class AddLibraryController extends HandleLocationController { @Autowired @Qualifier("libraryValidatorMVC") private Validator validator; @RequestMapping(method = RequestMethod.POST) public ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, @ModelAttribute("library") Library library, BindingResult result) throws Exception { library.setAreas(parseAreas(request, library)); validator.validate(library, result); if (result.hasErrors()) { ModelMap model = new ModelMap(); super.setReferenceData(request, model); return new ModelAndView("add_library", model); } library.setCreator(getUser(request).getUsername()); if (!locationsService.create(library)) { throw new Exception("Creating library failed."); } return new ModelAndView("redirect:locations.htm"); } @RequestMapping(method = RequestMethod.GET) public String initializeForm(HttpServletRequest request, ModelMap model) { Owner owner = getOwner(request); Library lib = new Library(); lib.updateLists(owner.getLanguages()); lib.setOwner(owner); model.put("library", lib); super.setReferenceData(request, model); return "add_library"; } }