ArticleRepositoryCustomImpl.java

/*
 * Copyright 2021 Global Crop Diversity Trust
 *
 * 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.genesys.server.persistence;

import java.time.Instant;

import org.genesys.blocks.model.ClassPK;
import org.genesys.server.component.security.SecurityUtils;
import org.genesys.server.model.UserRole;
import org.genesys.server.model.impl.Article;
import org.genesys.server.model.impl.QArticle;
import org.springframework.beans.factory.annotation.Autowired;

import com.querydsl.core.types.dsl.BooleanExpression;
import com.querydsl.jpa.impl.JPAQueryFactory;

public class ArticleRepositoryCustomImpl implements ArticleRepositoryCustom {

	@Autowired
	private JPAQueryFactory jpaQueryFactory;

	/** The securityUtils. */
	@Autowired
	private SecurityUtils securityUtils;

	@Override
	public Article findByClassPkAndTargetIdAndSlug(ClassPK classPk, long targetId, String slug) {
		QArticle qArticle = QArticle.article;
		BooleanExpression predicate = qArticle.classPk().eq(classPk)
				.and(qArticle.targetId.eq(targetId))
				.and(qArticle.slug.eq(slug));

		if (! (securityUtils.hasRole(UserRole.ADMINISTRATOR) || securityUtils.hasRole(UserRole.CONTENTMANAGER))) {
			var inst = Instant.now();
			predicate = predicate.and(qArticle.publishDate.before(inst))
					.andAnyOf(qArticle.expirationDate.isNull(), qArticle.expirationDate.after(inst));
		}

		return jpaQueryFactory.selectFrom(QArticle.article).where(predicate).fetchOne();
	}
}