/*
* Copyright (c) 2009, 2010, 2011, 2012, 2013, 2014, B3log Team
*
* 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.b3log.solo.repository.impl;
import java.util.Iterator;
import java.util.List;
import javax.inject.Inject;
import org.b3log.latke.Keys;
import org.b3log.latke.logging.Level;
import org.b3log.latke.logging.Logger;
import org.b3log.latke.repository.AbstractRepository;
import org.b3log.latke.repository.FilterOperator;
import org.b3log.latke.repository.PropertyFilter;
import org.b3log.latke.repository.Query;
import org.b3log.latke.repository.RepositoryException;
import org.b3log.latke.repository.SortDirection;
import org.b3log.latke.repository.annotation.Repository;
import org.b3log.solo.model.Comment;
import org.b3log.solo.repository.CommentRepository;
import org.b3log.latke.util.CollectionUtils;
import org.b3log.solo.model.Article;
import org.b3log.solo.repository.ArticleRepository;
import org.json.JSONArray;
import org.json.JSONObject;
/**
* Comment repository.
*
* @author <a href="http://88250.b3log.org">Liang Ding</a>
* @version 1.0.0.8, Oct 18, 2011
* @since 0.3.1
*/
@Repository
public class CommentRepositoryImpl extends AbstractRepository implements CommentRepository {
/**
* Logger.
*/
private static final Logger LOGGER = Logger.getLogger(CommentRepositoryImpl.class.getName());
/**
* Article repository.
*/
@Inject
private ArticleRepository articleRepository;
/**
* Public constructor.
*/
public CommentRepositoryImpl() {
super(Comment.COMMENT);
}
@Override
public int removeComments(final String onId) throws RepositoryException {
final List<JSONObject> comments = getComments(onId, 1, Integer.MAX_VALUE);
for (final JSONObject comment : comments) {
final String commentId = comment.optString(Keys.OBJECT_ID);
remove(commentId);
}
LOGGER.log(Level.DEBUG, "Removed comments[onId={0}, removedCnt={1}]", new Object[] {onId, comments.size()});
return comments.size();
}
@Override
public List<JSONObject> getComments(final String onId, final int currentPageNum, final int pageSize)
throws RepositoryException {
final Query query = new Query().addSort(Keys.OBJECT_ID, SortDirection.DESCENDING).setFilter(new PropertyFilter(Comment.COMMENT_ON_ID, FilterOperator.EQUAL, onId)).setCurrentPageNum(currentPageNum).setPageSize(pageSize).setPageCount(
1);
final JSONObject result = get(query);
final JSONArray array = result.optJSONArray(Keys.RESULTS);
return CollectionUtils.jsonArrayToList(array);
}
@Override
@SuppressWarnings("unchecked")
public List<JSONObject> getRecentComments(final int num) throws RepositoryException {
final Query query = new Query().addSort(Keys.OBJECT_ID, SortDirection.DESCENDING).setCurrentPageNum(1).setPageSize(num).setPageCount(
1);
List<JSONObject> ret;
final JSONObject result = get(query);
final JSONArray array = result.optJSONArray(Keys.RESULTS);
ret = CollectionUtils.jsonArrayToList(array);
// Removes unpublished article related comments
removeForUnpublishedArticles(ret);
return ret;
}
/**
* Removes comments of unpublished articles for the specified comments.
*
* @param comments the specified comments
* @throws RepositoryException repository exception
*/
private void removeForUnpublishedArticles(final List<JSONObject> comments) throws RepositoryException {
LOGGER.debug("Removing unpublished articles' comments....");
final Iterator<JSONObject> iterator = comments.iterator();
while (iterator.hasNext()) {
final JSONObject comment = iterator.next();
final String commentOnType = comment.optString(Comment.COMMENT_ON_TYPE);
if (Article.ARTICLE.equals(commentOnType)) {
final String articleId = comment.optString(Comment.COMMENT_ON_ID);
if (!articleRepository.isPublished(articleId)) {
iterator.remove();
}
}
}
LOGGER.debug("Removed unpublished articles' comments....");
}
/**
* Sets the article repository with the specified article repository.
*
* @param articleRepository the specified article repository
*/
public void setArticleRepository(final ArticleRepository articleRepository) {
this.articleRepository = articleRepository;
}
}