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Liferay Knowledge Base Service
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/**
 * Copyright (c) 2000-present Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library 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 Lesser General Public License for more
 * details.
 */

package com.liferay.knowledge.base.service.impl;

import aQute.bnd.annotation.ProviderType;

import com.liferay.knowledge.base.constants.KBFolderConstants;
import com.liferay.knowledge.base.exception.DuplicateKBFolderNameException;
import com.liferay.knowledge.base.exception.InvalidKBFolderNameException;
import com.liferay.knowledge.base.exception.KBFolderParentException;
import com.liferay.knowledge.base.exception.NoSuchFolderException;
import com.liferay.knowledge.base.model.KBFolder;
import com.liferay.knowledge.base.service.base.KBFolderLocalServiceBaseImpl;
import com.liferay.knowledge.base.util.KnowledgeBaseUtil;
import com.liferay.portal.kernel.dao.orm.QueryDefinition;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.model.User;
import com.liferay.portal.kernel.service.ServiceContext;
import com.liferay.portal.kernel.util.OrderByComparator;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.Validator;

import java.util.Date;
import java.util.List;

/**
 * @author Brian Wing Shun Chan
 */
@ProviderType
public class KBFolderLocalServiceImpl extends KBFolderLocalServiceBaseImpl {

	@Override
	public KBFolder addKBFolder(
			long userId, long groupId, long parentResourceClassNameId,
			long parentResourcePrimKey, String name, String description,
			ServiceContext serviceContext)
		throws PortalException {

		// KB folder

		User user = userLocalService.getUser(userId);
		Date now = new Date();

		validateName(groupId, parentResourcePrimKey, name);
		validateParent(parentResourceClassNameId, parentResourcePrimKey);

		long kbFolderId = counterLocalService.increment();

		KBFolder kbFolder = kbFolderPersistence.create(kbFolderId);

		kbFolder.setUuid(serviceContext.getUuid());
		kbFolder.setGroupId(groupId);
		kbFolder.setCompanyId(user.getCompanyId());
		kbFolder.setUserId(userId);
		kbFolder.setUserName(user.getFullName());
		kbFolder.setCreateDate(now);
		kbFolder.setModifiedDate(now);
		kbFolder.setParentKBFolderId(parentResourcePrimKey);
		kbFolder.setName(name);
		kbFolder.setUrlTitle(
			getUniqueUrlTitle(
				groupId, parentResourcePrimKey, kbFolderId, name));
		kbFolder.setDescription(description);

		kbFolderPersistence.update(kbFolder);

		// Resources

		if (serviceContext.isAddGroupPermissions() ||
			serviceContext.isAddGuestPermissions()) {

			addKBFolderResources(
				kbFolder, serviceContext.isAddGroupPermissions(),
				serviceContext.isAddGuestPermissions());
		}
		else {
			addKBFolderResources(
				kbFolder, serviceContext.getGroupPermissions(),
				serviceContext.getGuestPermissions());
		}

		return kbFolder;
	}

	@Override
	public KBFolder deleteKBFolder(long kbFolderId) throws PortalException {
		KBFolder kbFolder = kbFolderPersistence.findByPrimaryKey(kbFolderId);

		kbArticleLocalService.deleteKBArticles(
			kbFolder.getGroupId(), kbFolder.getKbFolderId());

		List childKBFolders = kbFolderPersistence.findByG_P(
			kbFolder.getGroupId(), kbFolder.getKbFolderId());

		for (KBFolder childKBFolder : childKBFolders) {
			deleteKBFolder(childKBFolder.getKbFolderId());
		}

		return kbFolderPersistence.remove(kbFolder);
	}

	@Override
	public KBFolder fetchFirstChildKBFolder(long groupId, long kbFolderId)
		throws PortalException {

		return fetchFirstChildKBFolder(groupId, kbFolderId, null);
	}

	@Override
	public KBFolder fetchFirstChildKBFolder(
			long groupId, long kbFolderId, OrderByComparator obc)
		throws PortalException {

		return kbFolderPersistence.fetchByG_P_First(groupId, kbFolderId, obc);
	}

	@Override
	public KBFolder fetchKBFolder(long kbFolderId) {
		return kbFolderPersistence.fetchByPrimaryKey(kbFolderId);
	}

	@Override
	public KBFolder fetchKBFolder(String uuid, long groupId) {
		return kbFolderPersistence.fetchByUUID_G(uuid, groupId);
	}

	@Override
	public KBFolder fetchKBFolderByUrlTitle(
			long groupId, long parentKbFolderId, String urlTitle)
		throws PortalException {

		return kbFolderPersistence.fetchByG_P_UT(
			groupId, parentKbFolderId, urlTitle);
	}

	@Override
	public KBFolder getKBFolderByUrlTitle(
			long groupId, long parentKbFolderId, String urlTitle)
		throws PortalException {

		return kbFolderPersistence.findByG_P_UT(
			groupId, parentKbFolderId, urlTitle);
	}

	@Override
	public List getKBFolders(
			long groupId, long parentKBFolderId, int start, int end)
		throws PortalException {

		return kbFolderPersistence.findByG_P(
			groupId, parentKBFolderId, start, end);
	}

	@Override
	public List