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 net.sourceforge.subsonic.domain.Player; import net.sourceforge.subsonic.domain.Playlist; import net.sourceforge.subsonic.domain.RandomSearchCriteria; import net.sourceforge.subsonic.service.MediaFileService; import net.sourceforge.subsonic.service.PlayerService; import net.sourceforge.subsonic.service.SearchService; 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 javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.util.HashMap; import java.util.List; import java.util.Map; /** * Controller for the creating a random playlist. * * @author Sindre Mehus */ public class RandomPlaylistController extends ParameterizableViewController { private PlayerService playerService; private List<ReloadFrame> reloadFrames; private MediaFileService mediaFileService; private SearchService searchService; protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { int size = ServletRequestUtils.getRequiredIntParameter(request, "size"); String genre = request.getParameter("genre"); if (StringUtils.equalsIgnoreCase("any", genre)) { genre = null; } Integer fromYear = null; Integer toYear = null; String year = request.getParameter("year"); if (!StringUtils.equalsIgnoreCase("any", year)) { String[] tmp = StringUtils.split(year); fromYear = Integer.parseInt(tmp[0]); toYear = Integer.parseInt(tmp[1]); } Integer musicFolderId = ServletRequestUtils.getRequiredIntParameter(request, "musicFolderId"); if (musicFolderId == -1) { musicFolderId = null; } Player player = playerService.getPlayer(request, response); Playlist playlist = player.getPlaylist(); RandomSearchCriteria criteria = new RandomSearchCriteria(size, genre, fromYear, toYear, musicFolderId); playlist.addFiles(false, searchService.getRandomSongs(criteria)); if (request.getParameter("autoRandom") != null) { playlist.setRandomSearchCriteria(criteria); } Map<String, Object> map = new HashMap<String, Object>(); map.put("reloadFrames", reloadFrames); ModelAndView result = super.handleRequestInternal(request, response); result.addObject("model", map); return result; } public void setPlayerService(PlayerService playerService) { this.playerService = playerService; } public void setReloadFrames(List<ReloadFrame> reloadFrames) { this.reloadFrames = reloadFrames; } public void setMediaFileService(MediaFileService mediaFileService) { this.mediaFileService = mediaFileService; } public void setSearchService(SearchService searchService) { this.searchService = searchService; } }