package org.jdbi.v3.core.mapper;
import java.lang.reflect.Type;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.IdentityHashMap;
import java.util.Map;
import java.util.Optional;
import org.jdbi.v3.core.config.ConfigRegistry;
import static org.jdbi.v3.core.generic.GenericTypes.getErasedType;
class BoxedMapperFactory implements ColumnMapperFactory {
private final Map<Class<?>, ColumnMapper<?>> mappers = new IdentityHashMap<>();
BoxedMapperFactory() {
mappers.put(Boolean.class, new GetterMapper<>(ResultSet::getBoolean));
mappers.put(Byte.class, new GetterMapper<>(ResultSet::getByte));
mappers.put(Character.class, new GetterMapper<>(BoxedMapperFactory::getCharacter));
mappers.put(Short.class, new GetterMapper<>(ResultSet::getShort));
mappers.put(Integer.class, new GetterMapper<>(ResultSet::getInt));
mappers.put(Long.class, new GetterMapper<>(ResultSet::getLong));
mappers.put(Float.class, new GetterMapper<>(ResultSet::getFloat));
mappers.put(Double.class, new GetterMapper<>(ResultSet::getDouble));
}
@Override
public Optional<ColumnMapper<?>> build(Type type, ConfigRegistry config) {
Class<?> rawType = getErasedType(type);
return Optional.ofNullable(mappers.get(rawType));
}
private static Character getCharacter(ResultSet r, int i) throws SQLException {
String s = r.getString(i);
return s == null || s.isEmpty() ? null : s.charAt(0);
}
}