DefaultRepositoryEntityFactory.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.factory;
import javax.annotation.Nonnull;
import javax.annotation.PostConstruct;
import java.util.HashMap;
import java.util.Map;
import java.net.URL;
import org.eclipse.rdf4j.query.BindingSet;
import org.eclipse.rdf4j.repository.Repository;
import it.tidalwave.bluemarine2.model.audio.AudioFile;
import it.tidalwave.bluemarine2.model.audio.MusicArtist;
import it.tidalwave.bluemarine2.model.audio.MusicPerformer;
import it.tidalwave.bluemarine2.model.audio.Performance;
import it.tidalwave.bluemarine2.model.audio.Record;
import it.tidalwave.bluemarine2.model.audio.Track;
import it.tidalwave.bluemarine2.model.impl.catalog.RepositoryAudioFile;
import it.tidalwave.bluemarine2.model.impl.catalog.RepositoryMusicArtist;
import it.tidalwave.bluemarine2.model.impl.catalog.RepositoryMusicPerformer;
import it.tidalwave.bluemarine2.model.impl.catalog.RepositoryPerformance;
import it.tidalwave.bluemarine2.model.impl.catalog.RepositoryRecord;
import it.tidalwave.bluemarine2.model.impl.catalog.RepositoryTrack;
/***********************************************************************************************************************
*
* @author Fabrizio Giudici
*
**********************************************************************************************************************/
public class DefaultRepositoryEntityFactory implements RepositoryEntityFactory
{
private final Map<Class<?>, EntityFactoryFunction<?>> factoryMapByType = new HashMap<>();
/*******************************************************************************************************************
*
* {@inheritDoc}
*
******************************************************************************************************************/
@Override @Nonnull
public <E> E createEntity (@Nonnull final Repository repository,
@Nonnull final Class<E> entityClass,
@Nonnull final BindingSet bindingSet)
{
return entityClass.cast(factoryMapByType.getOrDefault(entityClass, notFound(entityClass))
.apply(repository, bindingSet));
}
/*******************************************************************************************************************
*
******************************************************************************************************************/
@Nonnull
private <E> EntityFactoryFunction<E> notFound (@Nonnull final Class<E> entityClass)
{
return (repository, bindingSet) ->
{
throw new RuntimeException("Unknown type: " + entityClass + "; registered: " + factoryMapByType.keySet());
};
}
/*******************************************************************************************************************
*
******************************************************************************************************************/
@PostConstruct
private void initialize()
{
// FIXME: use discovery. Either plain class discovery, or Spring bean discovery
factoryMapByType.put(String.class, new StringFactory());
factoryMapByType.put(URL.class, new UrlFactory());
factoryMapByType.put(Record.class, RepositoryRecord::new);
factoryMapByType.put(MusicArtist.class, RepositoryMusicArtist::new);
factoryMapByType.put(MusicPerformer.class, RepositoryMusicPerformer::new);
factoryMapByType.put(Track.class, RepositoryTrack::new);
factoryMapByType.put(Performance.class, RepositoryPerformance::new);
factoryMapByType.put(AudioFile.class, RepositoryAudioFile::new);
}
}