RepositoryMusicArtistFinder.java
/*
* *********************************************************************************************************************
*
* blueMarine II: Semantic Media Centre
* http://tidalwave.it/projects/bluemarine2
*
* Copyright (C) 2015 - 2021 by Tidalwave s.a.s. (http://tidalwave.it)
*
* *********************************************************************************************************************
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*
* *********************************************************************************************************************
*
* git clone https://bitbucket.org/tidalwave/bluemarine2-src
* git clone https://github.com/tidalwave-it/bluemarine2-src
*
* *********************************************************************************************************************
*/
package it.tidalwave.bluemarine2.model.impl.catalog.finder;
import javax.annotation.Nonnull;
import java.util.Optional;
import org.eclipse.rdf4j.repository.Repository;
import it.tidalwave.util.Id;
import it.tidalwave.bluemarine2.model.audio.MusicArtist;
import it.tidalwave.bluemarine2.model.finder.audio.MusicArtistFinder;
import lombok.ToString;
/***********************************************************************************************************************
*
* @author Fabrizio Giudici
*
**********************************************************************************************************************/
@ToString
public class RepositoryMusicArtistFinder extends RepositoryFinderSupport<MusicArtist, MusicArtistFinder>
implements MusicArtistFinder
{
private static final long serialVersionUID = 2271161001432418095L;
private static final String QUERY_ARTISTS = readSparql(RepositoryMusicArtistFinder.class, "AllMusicArtists.sparql");
private static final String QUERY_ARTISTS_MAKER_OF = readSparql(RepositoryMusicArtistFinder.class, "MakerArtists.sparql");
@Nonnull
private final Optional<Id> madeEntityId;
/*******************************************************************************************************************
*
* Default constructor.
*
******************************************************************************************************************/
public RepositoryMusicArtistFinder (@Nonnull final Repository repository)
{
this(repository, Optional.empty());
}
/*******************************************************************************************************************
*
* Clone constructor.
*
******************************************************************************************************************/
public RepositoryMusicArtistFinder (@Nonnull final RepositoryMusicArtistFinder other,
@Nonnull final Object override)
{
super(other, override);
final RepositoryMusicArtistFinder source = getSource(RepositoryMusicArtistFinder.class, other, override);
this.madeEntityId = source.madeEntityId;
}
/*******************************************************************************************************************
*
* Override constructor.
*
******************************************************************************************************************/
private RepositoryMusicArtistFinder (@Nonnull final Repository repository,
@Nonnull final Optional<Id> madeEntityId)
{
super(repository, "artist");
this.madeEntityId = madeEntityId;
}
/*******************************************************************************************************************
*
* {@inheritDoc}
*
******************************************************************************************************************/
@Override @Nonnull
public MusicArtistFinder makerOf (@Nonnull final Id madeEntityId)
{
return clonedWith(new RepositoryMusicArtistFinder(repository, Optional.of(madeEntityId)));
}
/*******************************************************************************************************************
*
* {@inheritDoc}
*
******************************************************************************************************************/
@Override @Nonnull
protected QueryAndParameters prepareQuery()
{
// Two different queries because for the 'makerOf' we want to include collborations, as it's important their label
// In other words, 'Ella Fitzgerald and Duke Ellington' matters, rather than a list of the two individuals
return QueryAndParameters.withSparql(madeEntityId.isPresent() ? QUERY_ARTISTS_MAKER_OF : QUERY_ARTISTS)
.withParameter("madeEntity", madeEntityId.map(this::iriFor));
}
}