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ObServe Toolkit Common Persistence module
There is a newer version: 4.34
package fr.ird.observe.spi.context;

/*-
 * #%L
 * ObServe Toolkit :: Common Persistence
 * %%
 * Copyright (C) 2017 - 2020 IRD, Ultreia.io
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import fr.ird.observe.dto.DtoToReference;
import fr.ird.observe.dto.IdDto;
import fr.ird.observe.dto.form.Form;
import fr.ird.observe.dto.reference.DtoReference;
import fr.ird.observe.dto.reference.DtoReferenceCollection;
import fr.ird.observe.dto.referential.ReferentialLocale;
import fr.ird.observe.entities.DataNotFoundException;
import fr.ird.observe.entities.Entity;
import io.ultreia.java4all.lang.Objects2;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.nuiton.topia.persistence.TopiaDao;
import org.nuiton.topia.persistence.TopiaNoResultException;
import org.nuiton.topia.persistence.TopiaPersistenceContext;

import java.util.Collection;
import java.util.Date;

/**
 * Created on 08/02/19.
 *
 * @author Tony Chemit - [email protected]
 * @since ?
 */
public interface DtoEntityContext, E extends Entity, T extends TopiaDao> {

    Logger log = LogManager.getLogger(DtoEntityContext.class);

    Class toDtoType();

    Class toReferenceType();

    Class toEntityType();

    E newEntity(Date now);

    D toDto(ReferentialLocale referentialLocale, Class dtoType, E entity);

    E toEntity(ReferentialLocale referentialLocale, D dto);

    R toReference(ReferentialLocale referentialLocale, E entity);

    T getDao(TopiaPersistenceContext persistenceContext);

    R loadEntityToReferenceDto(TopiaPersistenceContext persistenceContext, String id, ReferentialLocale referentialLocale);

    D loadEntityToDto(TopiaPersistenceContext persistenceContext, String id, ReferentialLocale referentialLocale);

    Form entityToForm(E entity, ReferentialLocale referentialLocale);

    DtoReferenceCollection toReferenceSet(Collection entities, ReferentialLocale referentialLocale, Date now);

    @SuppressWarnings("unchecked")
    default R toReference(ReferentialLocale referentialLocale, D dto) {
        return ((DtoToReference) dto).toReference(referentialLocale);
    }

    default D newDto() {
        return Objects2.newInstance(toDtoType());
    }

    default E loadEntity(TopiaPersistenceContext persistenceContext, String id) {
        try {
            log.debug(String.format("Load entity with id: %s", id));
            TopiaDao dao = getDao(persistenceContext);
            return dao.forTopiaIdEquals(id).findUnique();
        } catch (TopiaNoResultException e) {
            throw new DataNotFoundException(toDtoType(), id);
        }
    }

    default E loadOrCreateEntityFromDto(TopiaPersistenceContext persistenceContext, D dto) {
        E entity;
        if (dto.isPersisted()) {
            entity = loadEntity(persistenceContext, dto.getId());
        } else {
            entity = newEntity(new Date());
        }
        return entity;
    }

    default boolean existsEntity(TopiaPersistenceContext persistenceContext, String id) {
        return getDao(persistenceContext).forTopiaIdEquals(id).exists();
    }

    default E loadNullableEntity(TopiaPersistenceContext persistenceContext, String id) {
        if (id == null) {
            return null;
        }
        return loadEntity(persistenceContext, id);
    }

    default D toDto(ReferentialLocale referentialLocale, E entity) {
        return toDto(referentialLocale, toDtoType(), entity);
    }

    default E toEntity(R reference) {
        E entity = newEntity(reference.getCreateDate());
        entity.setTopiaId(reference.getId());
        return entity;
    }

}