org.jdbi.v3.jpa.internal.BindJpaFactory Maven / Gradle / Ivy

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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.internal;

import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Parameter;
import java.lang.reflect.Type;

import org.jdbi.v3.jpa.BindJpa;
import org.jdbi.v3.jpa.EntityMemberAccessException;
import org.jdbi.v3.sqlobject.customizer.SqlStatementCustomizerFactory;
import org.jdbi.v3.sqlobject.customizer.SqlStatementParameterCustomizer;

public class BindJpaFactory implements SqlStatementCustomizerFactory {
    @Override
    public SqlStatementParameterCustomizer createForParameter(Annotation annotation,
                                                              Class sqlObjectType,
                                                              Method method,
                                                              Parameter param,
                                                              int index,
                                                              Type type) {
        BindJpa bind = (BindJpa) annotation;
        final String prefix;
        if (bind.value().isEmpty()) {
            prefix = "";
        } else {
            prefix = bind.value() + ".";
        }
        return (stmt, arg) -> {
            JpaClass jpaClass = JpaClass.get(arg.getClass());
            for (JpaMember member : jpaClass.members()) {
                stmt.bindByType(
                        prefix + member.getColumnName(),
                        readMember(arg, member),
                        member.getQualifiedType());
            }
        };
    }

    private static Object readMember(Object entity, JpaMember member) {
        try {
            return member.read(entity);
        } catch (IllegalAccessException e) {
            String message = String.format(
                    "Unable to access property value for column %s",
                    member.getColumnName());
            throw new EntityMemberAccessException(message, e);
        } catch (InvocationTargetException e) {
            String message = String.format(
                    "Exception thrown in accessor method for column %s",
                    member.getColumnName());
            throw new EntityMemberAccessException(message, e);
        }
    }
}