Java tutorial
/* * Copyright (c) 2004-2015 YAMJ Members * https://github.com/organizations/YAMJ/teams * * This file is part of the Yet Another Media Jukebox (YAMJ). * * YAMJ 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 * any later version. * * YAMJ 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 YAMJ. If not, see <http://www.gnu.org/licenses/>. * * Web: https://github.com/YAMJ/yamj-v3 * */ package org.yamj.core.database.dao; import java.util.ArrayList; import java.util.Collections; import java.util.List; import org.hibernate.SQLQuery; import org.hibernate.type.StringType; import org.springframework.stereotype.Repository; import org.yamj.common.type.MetaDataType; import org.yamj.core.api.model.builder.SqlScalars; import org.yamj.core.api.model.dto.ApiNameDTO; import org.yamj.core.api.options.OptionsSingleType; import org.yamj.core.api.wrapper.ApiWrapperList; import org.yamj.core.database.model.MediaFile; import org.yamj.core.database.model.dto.QueueDTO; import org.yamj.core.hibernate.HibernateDao; @Repository("mediaDao") public class MediaDao extends HibernateDao { public MediaFile getMediaFile(Long id) { return getById(MediaFile.class, id); } public MediaFile getMediaFile(String fileName) { return (MediaFile) currentSession().byNaturalId(MediaFile.class).using("fileName", fileName).load(); } public List<QueueDTO> getMediaQueue(final CharSequence sql, final int maxResults) { SQLQuery query = currentSession().createSQLQuery(sql.toString()); query.setReadOnly(true); query.setCacheable(true); if (maxResults > 0) { query.setMaxResults(maxResults); } List<QueueDTO> queueElements = new ArrayList<>(); List<Object[]> objects = query.list(); for (Object[] object : objects) { QueueDTO queueElement = new QueueDTO(); queueElement.setId(convertRowElementToLong(object[0])); queueElement.setDate(convertRowElementToDate(object[2])); if (queueElement.getDate() == null) { queueElement.setDate(convertRowElementToDate(object[1])); } queueElements.add(queueElement); } Collections.sort(queueElements); return queueElements; } public List<ApiNameDTO> getVideoSources(ApiWrapperList<ApiNameDTO> wrapper) { OptionsSingleType options = (OptionsSingleType) wrapper.getOptions(); SqlScalars sqlScalars = new SqlScalars(); sqlScalars.addToSql("SELECT DISTINCT mf.video_source as name "); sqlScalars.addToSql("FROM mediafile mf "); if (options.getType() != null) { sqlScalars.addToSql("JOIN mediafile_videodata mv ON mf.id=mv.mediafile_id "); if (MetaDataType.MOVIE == options.getType()) { sqlScalars.addToSql("JOIN videodata vd ON vd.id=mv.videodata_id and vd.episode < 0 "); } else { sqlScalars.addToSql("JOIN videodata vd ON vd.id=mv.videodata_id and vd.episode > -1 "); } } sqlScalars.addToSql("WHERE mf.video_source is not null "); sqlScalars.addToSql(options.getSortString("mf.video_source")); sqlScalars.addScalar("name", StringType.INSTANCE); return executeQueryWithTransform(ApiNameDTO.class, sqlScalars, wrapper); } }