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Liferay Message Boards 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.message.boards.internal.util;

import com.liferay.message.boards.model.MBMessage;
import com.liferay.message.boards.service.persistence.MBMessageFinder;
import com.liferay.message.boards.service.persistence.MBMessagePersistence;
import com.liferay.portal.kernel.dao.orm.QueryDefinition;
import com.liferay.portal.kernel.util.ListUtil;
import com.liferay.portal.kernel.util.OrderByComparator;
import com.liferay.portal.kernel.workflow.WorkflowConstants;

import java.util.Comparator;
import java.util.List;

/**
 * @author Preston Crary
 */
public class MBMessageUtil {

	public static List getThreadMessages(
		MBMessagePersistence mbMessagePersistence,
		MBMessageFinder mbMessageFinder, long userId, long threadId, int status,
		int start, int end, Comparator comparator) {

		if (status == WorkflowConstants.STATUS_ANY) {
			OrderByComparator orderByComparator = null;

			if (comparator instanceof OrderByComparator) {
				orderByComparator = (OrderByComparator)comparator;
			}

			List messages = mbMessagePersistence.findByT_NotS(
				threadId, WorkflowConstants.STATUS_IN_TRASH, start, end,
				orderByComparator);

			if (!(comparator instanceof OrderByComparator)) {
				messages = ListUtil.sort(messages, comparator);
			}

			return messages;
		}

		QueryDefinition queryDefinition = new QueryDefinition<>(
			status, userId, true, start, end, null);

		if (comparator instanceof OrderByComparator) {
			queryDefinition.setOrderByComparator(
				(OrderByComparator)comparator);
		}

		List messages = mbMessageFinder.findByThreadId(
			threadId, queryDefinition);

		if (!(comparator instanceof OrderByComparator)) {
			messages = ListUtil.sort(messages, comparator);
		}

		return messages;
	}

	public static MBMessage updateAnswer(
		MBMessagePersistence mbMessagePersistence, MBMessage message,
		boolean answer, boolean cascade) {

		if (message.isAnswer() != answer) {
			message.setAnswer(answer);

			message = mbMessagePersistence.update(message);
		}

		if (cascade) {
			List messages = mbMessagePersistence.findByT_P(
				message.getThreadId(), message.getMessageId());

			for (MBMessage curMessage : messages) {
				updateAnswer(mbMessagePersistence, curMessage, answer, cascade);
			}
		}

		return message;
	}

	private MBMessageUtil() {
	}

}