com.liferay.screens.service.impl.ScreensRatingsEntryServiceImpl.java Source code

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Here is the source code for com.liferay.screens.service.impl.ScreensRatingsEntryServiceImpl.java

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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.screens.service.impl;

import com.liferay.asset.kernel.model.AssetEntry;
import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.json.JSONFactoryUtil;
import com.liferay.portal.kernel.json.JSONObject;
import com.liferay.portal.kernel.security.permission.ActionKeys;
import com.liferay.portal.kernel.service.ServiceContext;
import com.liferay.portlet.asset.service.permission.AssetEntryPermission;
import com.liferay.ratings.kernel.model.RatingsEntry;
import com.liferay.screens.service.base.ScreensRatingsEntryServiceBaseImpl;

import java.util.List;

/**
 * @author Alejandro Hernndez Malillos
 */
public class ScreensRatingsEntryServiceImpl extends ScreensRatingsEntryServiceBaseImpl {

    @Override
    public JSONObject deleteRatingsEntry(long classPK, String className, int ratingsLength) throws PortalException {

        AssetEntryPermission.check(getPermissionChecker(), className, classPK, ActionKeys.DELETE);

        ratingsEntryLocalService.deleteEntry(getUserId(), className, classPK);

        return getRatingsEntries(classPK, className, ratingsLength);
    }

    @Override
    public JSONObject getRatingsEntries(long assetEntryId, int ratingsLength) throws PortalException {

        AssetEntry assetEntry = assetEntryLocalService.fetchEntry(assetEntryId);

        AssetEntryPermission.check(getPermissionChecker(), assetEntry, ActionKeys.VIEW);

        return getRatingsEntries(assetEntry.getClassPK(), assetEntry.getClassName(), ratingsLength);
    }

    @Override
    public JSONObject getRatingsEntries(long classPK, String className, int ratingsLength) throws PortalException {

        JSONObject jsonObject = JSONFactoryUtil.createJSONObject();

        List<RatingsEntry> ratingsEntries = ratingsEntryLocalService.getEntries(className, classPK);

        int[] ratings = new int[ratingsLength];
        double totalScore = 0;
        double userScore = -1;

        for (RatingsEntry ratingsEntry : ratingsEntries) {
            int index = (int) (ratingsEntry.getScore() * ratingsLength);

            if (index == ratingsLength) {
                index--;
            }

            ratings[index]++;
            totalScore += ratingsEntry.getScore();

            if (ratingsEntry.getUserId() == getUserId()) {
                userScore = ratingsEntry.getScore();
            }
        }

        if (!ratingsEntries.isEmpty()) {
            jsonObject.put("average", totalScore / ratingsEntries.size());
        } else {
            jsonObject.put("average", 0);
        }

        jsonObject.put("className", className);
        jsonObject.put("classPK", classPK);
        jsonObject.put("ratings", ratings);
        jsonObject.put("totalCount", ratingsEntries.size());
        jsonObject.put("totalScore", totalScore);
        jsonObject.put("userScore", userScore);

        return jsonObject;
    }

    @Override
    public JSONObject updateRatingsEntry(long classPK, String className, double score, int ratingsLength)
            throws PortalException {

        AssetEntryPermission.check(getPermissionChecker(), className, classPK, ActionKeys.UPDATE);

        ratingsEntryLocalService.updateEntry(getUserId(), className, classPK, score, new ServiceContext());

        return getRatingsEntries(classPK, className, ratingsLength);
    }

}