io.tarantool.driver.mappers.DefaultSingleValueResultMapper Maven / Gradle / Ivy

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Tarantool Cartridge driver for Tarantool versions 1.10+ based on Netty framework

There is a newer version: 0.14.0

package io.tarantool.driver.mappers;

import io.tarantool.driver.api.SingleValueCallResult;
import io.tarantool.driver.mappers.converters.ValueConverter;
import io.tarantool.driver.mappers.converters.value.ArrayValueToSingleValueCallResultSimpleConverter;
import io.tarantool.driver.mappers.factories.DefaultMessagePackMapperFactory;
import org.msgpack.value.ArrayValue;

/**
 * Default mapper for {@link SingleValueCallResult} with content types supported by the given value mapper
 *
 * @param  target result content type
 * @author Alexey Kuzin
 */
public class DefaultSingleValueResultMapper extends CallResultMapper> {

    /**
     * Basic constructor
     *
     * @param valueMapper  value mapper for result content conversion
     * @param contentClass target result content class
     */
    public DefaultSingleValueResultMapper(MessagePackMapper valueMapper, Class contentClass) {
        super(DefaultMessagePackMapperFactory.getInstance().emptyMapper(),
            defaultValueConverter(valueMapper), getResultClass(contentClass));
    }

    @SuppressWarnings("unchecked")
    private static  Class> getResultClass(Class contentClass) {
        return (Class>) (Class) SingleValueCallResult.class;
    }

    private static  ValueConverter> defaultValueConverter(
        MessagePackValueMapper valueMapper) {
        return new ArrayValueToSingleValueCallResultSimpleConverter<>(valueMapper::fromValue);
    }
}