Java tutorial
/* * Copyright (C) 2009-2010 Stefan Arndt, Christian Autermann, Dustin Demuth, * Christoph Fendrich, Simon Ottenhues, Christian Paluschek * * This program 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. * * This program 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 this program. If not, see <http://www.gnu.org/licenses/>. */ package org.sloth.web.observation; import static org.sloth.util.ControllerUtils.forbiddenMAV; import static org.sloth.util.ControllerUtils.isAdmin; import static org.sloth.util.ControllerUtils.isAuth; import static org.sloth.util.ControllerUtils.isOwnObservation; import static org.sloth.util.ControllerUtils.notFoundMAV; import java.io.IOException; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.sloth.model.Observation; import org.sloth.service.ObservationService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.SessionAttributes; import org.springframework.web.servlet.ModelAndView; /** * Controller to view the details of an {@code Observation}. * * @author Christian Autermann * @author Stefan Arndt * @author Dustin Demuth * @author Christoph Fendrich * @author Simon Ottenhues * @author Christian Paluschek */ @Controller @RequestMapping("/o/{id}") @SessionAttributes(types = Observation.class) public class ViewObservationController { private static final String VIEW = "observations/details"; private static final String OBSERVATIONS_ATTRIBUTE = "observation"; private ObservationService observationService; /** * @param observationService * the {@code ObservationService} to set */ @Autowired public void setObservationService(ObservationService observationService) { this.observationService = observationService; } /** * Handles all request and sets up the view. */ @RequestMapping public ModelAndView handle(@PathVariable Long id, HttpSession session, HttpServletResponse response) throws IOException { if (isAuth(session)) { Observation o = this.observationService.getObservation(id); if (o == null) { return notFoundMAV(response); } else if (isAdmin(session) || isOwnObservation(session, o)) { ModelAndView mav = new ModelAndView(VIEW); mav.addObject(OBSERVATIONS_ATTRIBUTE, o); return mav; } } return forbiddenMAV(response); } }