csns.web.controller.ResourceControllerS.java Source code

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Here is the source code for csns.web.controller.ResourceControllerS.java

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/*
 * This file is part of the CSNetwork Services (CSNS) project.
 * 
 * Copyright 2014, Chengyu Sun (csun@calstatela.edu).
 * 
 * CSNS is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 * 
 * CSNS 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 Affero General Public License for
 * more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with CSNS. If not, see http://www.gnu.org/licenses/agpl.html.
 */
package csns.web.controller;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
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.bind.annotation.SessionAttributes;
import org.springframework.web.bind.support.SessionStatus;
import org.springframework.web.multipart.MultipartFile;

import csns.model.academics.Section;
import csns.model.academics.dao.SectionDao;
import csns.model.core.File;
import csns.model.core.Resource;
import csns.model.core.ResourceType;
import csns.model.core.User;
import csns.model.core.dao.ResourceDao;
import csns.security.SecurityUtils;
import csns.util.FileIO;
import csns.web.validator.ResourceValidator;

@Controller
@SessionAttributes({ "resource", "view" })
public class ResourceControllerS {

    @Autowired
    private ResourceDao resourceDao;

    @Autowired
    private SectionDao sectionDao;

    @Autowired
    private ResourceValidator resourceValidator;

    @Autowired
    private FileIO fileIO;

    private static final Logger logger = LoggerFactory.getLogger(ResourceControllerS.class);

    private Resource save(Resource resource, MultipartFile uploadedFile, SessionStatus sessionStatus) {
        User user = SecurityUtils.getUser();
        if (resource.getType() == ResourceType.FILE && uploadedFile != null && !uploadedFile.isEmpty()) {
            File file = fileIO.save(uploadedFile, user, true);
            resource.setFile(file);
        }
        resource = resourceDao.saveResource(resource);
        sessionStatus.setComplete();

        logger.info(user.getUsername() + " added/edited resource " + resource.getId());

        return resource;
    }

    @RequestMapping(value = "/section/journal/addHandout", method = RequestMethod.GET)
    public String addHandout(@RequestParam Long sectionId, ModelMap models) {
        models.put("view", "journal_handout");
        models.put("section", sectionDao.getSection(sectionId));
        models.put("resource", new Resource(ResourceType.FILE));
        models.put("resourceTypes", ResourceType.values());
        return "resource/edit";
    }

    @RequestMapping(value = "/section/journal/addHandout", method = RequestMethod.POST)
    public String addHandout(@RequestParam Long sectionId, @ModelAttribute Resource resource,
            @RequestParam(value = "uploadedFile", required = false) MultipartFile uploadedFile,
            BindingResult bindingResult, SessionStatus sessionStatus, ModelMap models) {
        Section section = sectionDao.getSection(sectionId);
        resourceValidator.validate(resource, uploadedFile, bindingResult);
        if (bindingResult.hasErrors()) {
            models.put("section", section);
            return "resource/edit";
        }

        resource = save(resource, uploadedFile, sessionStatus);
        section.getJournal().getHandouts().add(resource);
        section = sectionDao.saveSection(section);
        return "redirect:/section/journal/handouts?sectionId=" + section.getId();
    }

    @RequestMapping(value = "/section/journal/editHandout", method = RequestMethod.GET)
    public String editHandout(@RequestParam Long sectionId, @RequestParam Long resourceId, ModelMap models) {
        models.put("view", "journal_handout");
        models.put("section", sectionDao.getSection(sectionId));
        models.put("resource", resourceDao.getResource(resourceId));
        models.put("resourceTypes", ResourceType.values());
        return "resource/edit";
    }

    @RequestMapping(value = "/section/journal/editHandout", method = RequestMethod.POST)
    public String editHandout(@RequestParam Long sectionId, @ModelAttribute Resource resource,
            @RequestParam(value = "uploadedFile", required = false) MultipartFile uploadedFile,
            BindingResult bindingResult, SessionStatus sessionStatus, ModelMap models) {
        Section section = sectionDao.getSection(sectionId);
        resourceValidator.validate(resource, uploadedFile, bindingResult);
        if (bindingResult.hasErrors()) {
            models.put("section", section);
            return "resource/edit";
        }

        resource = save(resource, uploadedFile, sessionStatus);
        return "redirect:/section/journal/handouts?sectionId=" + section.getId();
    }

}