Java tutorial
/* This file is part of Subsonic. Subsonic 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. Subsonic 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 Subsonic. If not, see <http://www.gnu.org/licenses/>. Copyright 2009 (C) Sindre Mehus */ package net.sourceforge.subsonic.controller; import java.util.HashMap; import java.util.Map; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.lang.StringUtils; import org.springframework.web.bind.ServletRequestUtils; import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.ParameterizableViewController; import net.sourceforge.subsonic.domain.MediaFile; import net.sourceforge.subsonic.service.MediaFileService; /** * Controller for changing cover art. * * @author Sindre Mehus */ public class ChangeCoverArtController extends ParameterizableViewController { private MediaFileService mediaFileService; @Override protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { int id = ServletRequestUtils.getRequiredIntParameter(request, "id"); String artist = request.getParameter("artist"); String album = request.getParameter("album"); MediaFile dir = mediaFileService.getMediaFile(id); if (StringUtils.isBlank(artist)) { artist = dir.getArtist(); } if (StringUtils.isBlank(album)) { album = dir.getAlbumName(); } Map<String, Object> map = new HashMap<String, Object>(); map.put("id", id); map.put("artist", artist); map.put("album", album); ModelAndView result = super.handleRequestInternal(request, response); result.addObject("model", map); return result; } public void setMediaFileService(MediaFileService mediaFileService) { this.mediaFileService = mediaFileService; } }