/*
* Hibernate OGM, Domain model persistence for NoSQL datastores
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.ogm.options.navigation.source.impl;
import static org.hibernate.ogm.util.impl.CollectionHelper.newHashMap;
import java.util.Collections;
import java.util.Map;
import java.util.Map.Entry;
import org.hibernate.ogm.options.container.impl.OptionsContainer;
import org.hibernate.ogm.options.container.impl.OptionsContainerBuilder;
import org.hibernate.ogm.options.navigation.impl.AppendableConfigurationContext;
import org.hibernate.ogm.options.navigation.impl.PropertyKey;
/**
* A {@link OptionValueSource} which provides access to options set via the programmatic option API.
* <p>
* This class is safe to be accessed from several threads at the same time.
*
* @author Davide D'Alto <davide@hibernate.org>
* @author Gunnar Morling
* @see org.hibernate.ogm.options.spi.OptionsService
*/
public class ProgrammaticOptionValueSource implements OptionValueSource {
private final OptionsContainer globalOptions;
private final Map<Class<?>, OptionsContainer> optionsPerEntity;
private final Map<PropertyKey, OptionsContainer> optionsPerProperty;
public ProgrammaticOptionValueSource(AppendableConfigurationContext programmaticOptions) {
globalOptions = programmaticOptions.getGlobalOptions().build();
optionsPerEntity = immutable( programmaticOptions.getEntityOptions() );
optionsPerProperty = immutable( programmaticOptions.getPropertyOptions() );
}
private static <K> Map<K, OptionsContainer> immutable(Map<K, OptionsContainerBuilder> options) {
Map<K, OptionsContainer> result = newHashMap( options.size() );
for ( Entry<K, OptionsContainerBuilder> option : options.entrySet() ) {
result.put( option.getKey(), option.getValue().build() );
}
return Collections.unmodifiableMap( result );
}
@Override
public OptionsContainer getGlobalOptions() {
return globalOptions;
}
@Override
public OptionsContainer getEntityOptions(Class<?> entityType) {
OptionsContainer entityOptions = optionsPerEntity.get( entityType );
return entityOptions != null ? entityOptions : OptionsContainer.EMPTY;
}
@Override
public OptionsContainer getPropertyOptions(Class<?> entityType, String propertyName) {
OptionsContainer propertyOptions = optionsPerProperty.get( new PropertyKey( entityType, propertyName ) );
return propertyOptions != null ? propertyOptions : OptionsContainer.EMPTY;
}
}