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Spring Boot starter for storing data as an entity-subentity hierarchy with a parent-child relationship.

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/*
 * Copyright 2022 Nedra Team
 *
 * 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 digital.nedra.commons.starter.dao.util;

import digital.nedra.commons.starter.dao.domain.Entity;
import digital.nedra.commons.starter.dao.domain.HasId;
import digital.nedra.commons.starter.dao.domain.HasParent;
import digital.nedra.commons.starter.dao.exception.UnknownIdException;
import digital.nedra.commons.starter.dao.exception.UnknownParentIdException;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import lombok.experimental.UtilityClass;

@UtilityClass
public class CheckUtils {
  public  & HasParent,
      T2 extends Entity> void checkUndiscoveredParentEntities(
      Map> parentIdSubEntityMap, List parentEntities) {
    final List resolvedParentsId = parentEntities.stream()
        .map(HasId::getId)
        .collect(Collectors.toList());
    final Set copiedParentsId =
        new HashSet<>(parentIdSubEntityMap.keySet());
    resolvedParentsId.forEach(copiedParentsId::remove);
    if (!copiedParentsId.isEmpty()) {
      throw new UnknownParentIdException(copiedParentsId);
    }
  }

  public void checkUndiscoveredEntities(List idsToResolve,
                                        Map actualEntityVersions) {
    final Set copiedIdsToResolve = new HashSet<>(idsToResolve);
    copiedIdsToResolve.removeAll(actualEntityVersions.keySet());
    if (!copiedIdsToResolve.isEmpty()) {
      throw new UnknownIdException(copiedIdsToResolve);
    }
  }
}