RatingsEntryLocalServiceImpl.java :  » Portal » liferay-portal-4.4.2 » com » liferay » portlet » ratings » service » impl » Java Open Source

/**
 * Copyright (c) 2000-2008 Liferay, Inc. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.liferay.portlet.ratings.service.impl;

import com.liferay.portal.PortalException;
import com.liferay.portal.SystemException;
import com.liferay.portal.model.User;
import com.liferay.portal.util.PortalUtil;
import com.liferay.portlet.blogs.model.BlogsEntry;
import com.liferay.portlet.blogs.model.BlogsStatsUser;
import com.liferay.portlet.ratings.NoSuchEntryException;
import com.liferay.portlet.ratings.model.RatingsEntry;
import com.liferay.portlet.ratings.model.RatingsStats;
import com.liferay.portlet.ratings.service.base.RatingsEntryLocalServiceBaseImpl;

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

/**
 * <a href="RatingsEntryLocalServiceImpl.java.html"><b><i>View Source</i></b>
 * </a>
 *
 * @author Brian Wing Shun Chan
 *
 */
public class RatingsEntryLocalServiceImpl
  extends RatingsEntryLocalServiceBaseImpl {

  public RatingsEntry getEntry(long userId, String className, long classPK)
    throws PortalException, SystemException {

    long classNameId = PortalUtil.getClassNameId(className);

    return ratingsEntryPersistence.findByU_C_C(
      userId, classNameId, classPK);
  }

  public List getEntries(String className, long classPK)
    throws PortalException, SystemException {

    long classNameId = PortalUtil.getClassNameId(className);

    return ratingsEntryPersistence.findByC_C(classNameId, classPK);
  }

  public RatingsEntry updateEntry(
      long userId, String className, long classPK, double score)
    throws PortalException, SystemException {

    boolean newEntry = false;

    long classNameId = PortalUtil.getClassNameId(className);
    double oldScore = 0;
    Date now = new Date();

    RatingsEntry entry = null;

    try {
      entry = ratingsEntryPersistence.findByU_C_C(
        userId, classNameId, classPK);

      oldScore = entry.getScore();

      entry.setModifiedDate(now);
      entry.setScore(score);

      ratingsEntryPersistence.update(entry);

      // Stats

      RatingsStats stats = ratingsStatsLocalService.getStats(
        className, classPK);

      stats.setTotalScore(stats.getTotalScore() - oldScore + score);
      stats.setAverageScore(
        stats.getTotalScore() / stats.getTotalEntries());

      ratingsStatsPersistence.update(stats);
    }
    catch (NoSuchEntryException nsee) {
      newEntry = true;

      User user = userPersistence.findByPrimaryKey(userId);

      long entryId = counterLocalService.increment();

      entry = ratingsEntryPersistence.create(entryId);

      entry.setCompanyId(user.getCompanyId());
      entry.setUserId(user.getUserId());
      entry.setUserName(user.getFullName());
      entry.setCreateDate(now);
      entry.setModifiedDate(now);
      entry.setClassNameId(classNameId);
      entry.setClassPK(classPK);
      entry.setScore(score);

      ratingsEntryPersistence.update(entry);

      // Stats

      RatingsStats stats = ratingsStatsLocalService.getStats(
        className, classPK);

      stats.setTotalEntries(stats.getTotalEntries() + 1);
      stats.setTotalScore(stats.getTotalScore() + score);
      stats.setAverageScore(
        stats.getTotalScore() / stats.getTotalEntries());

      ratingsStatsPersistence.update(stats);
    }

    // Blogs entry

    if (className.equals(BlogsEntry.class.getName())) {
      BlogsEntry blogsEntry = blogsEntryPersistence.findByPrimaryKey(
        classPK);

      BlogsStatsUser blogsStasUser =
        blogsStatsUserLocalService.getStatsUser(
          blogsEntry.getGroupId(), blogsEntry.getUserId());

      int ratingsTotalEntries = blogsStasUser.getRatingsTotalEntries();
      double ratingsTotalScore = blogsStasUser.getRatingsTotalScore();
      double ratingsAverageScore = blogsStasUser.getRatingsAverageScore();

      if (newEntry) {
        ratingsTotalEntries++;
        ratingsTotalScore += score;
      }
      else {
        ratingsTotalScore = ratingsTotalScore - oldScore + score;
      }

      ratingsAverageScore = ratingsTotalScore / ratingsTotalEntries;

      blogsStasUser.setRatingsTotalEntries(ratingsTotalEntries);
      blogsStasUser.setRatingsTotalScore(ratingsTotalScore);
      blogsStasUser.setRatingsAverageScore(ratingsAverageScore);

      blogsStatsUserPersistence.update(blogsStasUser);
    }

    return entry;
  }

}