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/*
 * 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.
 */
package org.jdbi.v3.jpa;

import java.lang.reflect.Type;
import java.util.Optional;

import javax.persistence.Entity;

import org.jdbi.v3.core.config.ConfigRegistry;
import org.jdbi.v3.core.mapper.RowMapper;
import org.jdbi.v3.core.mapper.RowMapperFactory;

import static org.jdbi.v3.core.generic.GenericTypes.getErasedType;

/**
 * Create {@link JpaMapper}s for {@link Entity} annotated classes.
 */
public class JpaMapperFactory implements RowMapperFactory {
    @Override
    public Optional> build(Type type, ConfigRegistry config) {
        Class clazz = getErasedType(type);
        return clazz.isAnnotationPresent(Entity.class)
                ? Optional.of(new JpaMapper<>(clazz))
                : Optional.empty();
    }
}