/*
* Copyright 2010-2011, Social Music Discovery project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Social Music Discovery project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL SOCIAL MUSIC DISCOVERY PROJECT BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.socialmusicdiscovery.server.business.service.browse;
import org.socialmusicdiscovery.server.business.model.SMDIdentity;
import org.socialmusicdiscovery.server.business.model.core.Image;
import org.socialmusicdiscovery.server.business.model.core.ReleaseEntity;
import org.socialmusicdiscovery.server.business.model.core.TrackEntity;
import javax.persistence.Query;
import java.util.Collection;
public class TrackBrowseService extends AbstractBrowseService implements BrowseService<TrackEntity> {
@Override
public ResultItem<TrackEntity> findById(String id) {
return findById(TrackEntity.class, "Track", id);
}
protected Query createFindQuery(Class entity, String objectType, String relationType, String orderBy, Collection<String> criteriaList, Collection<String> sortCriteriaList, String joinString, String whereString) {
Query query;
if (criteriaList.size() > 0) {
query = entityManager.createQuery("SELECT distinct e from RecordingEntity as r JOIN r."+relationType+"SearchRelations as searchRelations JOIN searchRelations."+relationType+" as e " + joinString + " LEFT JOIN FETCH e.medium as m LEFT JOIN FETCH e.playableElements as p WHERE " + whereString + buildExclusionString("searchRelations", criteriaList) + (orderBy != null ? " order by " + orderBy : ""));
setExclusionQueryParameters(query, criteriaList);
setQueryParameters(objectType, query, criteriaList);
} else {
query = entityManager.createQuery("SELECT distinct e from " + entity.getSimpleName() + " as e JOIN FETCH e.recording as r LEFT JOIN FETCH e.medium as m LEFT JOIN FETCH e.playableElements as p " + (orderBy != null ? " order by " + orderBy : ""));
}
return query;
}
public Integer findChildrenCount(Collection<String> criteriaList) {
return findChildrenCount(TrackEntity.class, "Track", "track", criteriaList);
}
public Result<TrackEntity> findChildren(Collection<String> criteriaList, Collection<String> sortCriteriaList, Integer firstItem, Integer maxItems, Boolean returnChildCounters) {
return findChildren(TrackEntity.class, "Track", "track", "m.sortAs,e.number", criteriaList, sortCriteriaList, null, firstItem, maxItems, returnChildCounters);
}
@Override
public String getObjectType() {
return "Track";
}
@Override
protected <T extends SMDIdentity> Image getPersistentImage(T item) {
Image image = ((TrackEntity)item).getDefaultImage();
if(image==null && ((TrackEntity) item).getRelease()!=null) {
image = ((ReleaseEntity)((TrackEntity) item).getRelease()).getDefaultImage();
}
return image;
}
}