DefaultServiceImpl.java

package org.dynamoframework.service.impl;

/*-
 * #%L
 * Dynamo Framework
 * %%
 * Copyright (C) 2014 - 2024 Open Circle Solutions
 * %%
 * 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.
 * #L%
 */

import com.querydsl.core.types.dsl.EntityPathBase;
import org.dynamoframework.dao.BaseDao;
import org.dynamoframework.dao.impl.DefaultDaoImpl;
import org.dynamoframework.domain.AbstractEntity;
import org.dynamoframework.utils.ClassUtils;

/**
 * Default implementation of BaseService for dealing with simple entities
 *
 * @param <ID> the type of the primary key of the entity
 * @param <T>  the type of the entity
 * @author Bas Rutten
 */
public class DefaultServiceImpl<ID, T extends AbstractEntity<ID>> extends BaseServiceImpl<ID, T> {

	/**
	 * The DAO
	 */
	private BaseDao<ID, T> dao;

	/**
	 * The name of the property that is used to check if a value is unique
	 */
	private String[] uniquePropertyIds;

	/**
	 * Whether the unique value is case sensitive
	 */
	private boolean uniqueCaseSensitive;

	/**
	 * Constructor - no unique property
	 *
	 * @param dslRoot     the DSL root
	 * @param entityClass the entity class
	 */
	public DefaultServiceImpl(EntityPathBase<T> dslRoot, Class<T> entityClass) {
		this(dslRoot, entityClass, null);
	}

	/**
	 * Constructor - with unique property, not case sensitive
	 *
	 * @param dslRoot           the DSL root
	 * @param entityClass       the entity class
	 * @param uniquePropertyIds the unique property name
	 */
	public DefaultServiceImpl(EntityPathBase<T> dslRoot, Class<T> entityClass, String[] uniquePropertyIds) {
		this(dslRoot, entityClass, uniquePropertyIds, false);
	}

	/**
	 * Constructor
	 *
	 * @param dslRoot             the QueryDSL root
	 * @param entityClass         the entity class
	 * @param uniquePropertyIds
	 * @param uniqueCaseSensitive
	 */
	public DefaultServiceImpl(EntityPathBase<T> dslRoot, Class<T> entityClass, String[] uniquePropertyIds,
							  boolean uniqueCaseSensitive) {
		dao = new DefaultDaoImpl<>(dslRoot, entityClass);
		this.uniquePropertyIds = uniquePropertyIds;
		this.uniqueCaseSensitive = uniqueCaseSensitive;
	}

	/**
	 * @param dao
	 */
	public DefaultServiceImpl(BaseDao<ID, T> dao) {
		this(dao, (String[]) null);
	}

	/**
	 * Constructor
	 *
	 * @param dao               the DAO
	 * @param uniquePropertyIds the name of the property that must be unique
	 */
	public DefaultServiceImpl(BaseDao<ID, T> dao, String... uniquePropertyIds) {
		this(dao, uniquePropertyIds, false);
	}

	/**
	 * Constructor
	 *
	 * @param dao                 the DAO used to retrieve the data
	 * @param uniquePropertyIds   the unique property
	 * @param uniqueCaseSensitive whether the unique property is case sensitive
	 */
	public DefaultServiceImpl(BaseDao<ID, T> dao, String[] uniquePropertyIds, boolean uniqueCaseSensitive) {
		this.dao = dao;
		this.uniquePropertyIds = uniquePropertyIds;
		this.uniqueCaseSensitive = uniqueCaseSensitive;
	}

	@Override
	protected BaseDao<ID, T> getDao() {
		return dao;
	}

	/**
	 * Check for an identical entry - by default we to this by simply checking for a
	 * unique property
	 */
	@Override
	protected T findIdenticalEntity(T entity) {
		if (uniquePropertyIds == null || uniquePropertyIds.length == 0) {
			return super.findIdenticalEntity(entity);
		}

		for (String property : uniquePropertyIds) {
			T existing = getDao().findByUniqueProperty(property, ClassUtils.getFieldValue(entity, property), uniqueCaseSensitive);
			if (existing != null) {
				return existing;
			}
		}
		return null;
	}

	public String[] getUniquePropertyIds() {
		return uniquePropertyIds;
	}

	public boolean isUniqueCaseSensitive() {
		return uniqueCaseSensitive;
	}

}