/**
* Vosao CMS. Simple CMS for Google App Engine.
*
* Copyright (C) 2009-2010 Vosao development team.
*
* 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* email: vosao.dev@gmail.com
*/
package org.vosao.business.impl;
import java.util.Date;
import java.util.List;
import org.apache.commons.lang.StringEscapeUtils;
import org.apache.commons.lang.StringUtils;
import org.vosao.business.CommentBusiness;
import org.vosao.business.ContentPermissionBusiness;
import org.vosao.common.VosaoContext;
import org.vosao.entity.CommentEntity;
import org.vosao.entity.ConfigEntity;
import org.vosao.entity.ContentPermissionEntity;
import org.vosao.entity.PageEntity;
import org.vosao.utils.EmailUtil;
import org.vosao.utils.StrUtil;
/**
*
* @author Alexander Oleynik
*
*/
public class CommentBusinessImpl extends AbstractBusinessImpl
implements CommentBusiness {
private static final String COMMENT_LETTER_SUBJECT = "New comment";
@Override
public CommentEntity addComment(String name, String content,
PageEntity page) {
ConfigEntity config = VosaoContext.getInstance().getConfig();
CommentEntity comment = new CommentEntity(name, content,
new Date(), page.getFriendlyURL());
getDao().getCommentDao().save(comment);
getBusiness().getSystemService().getPageCache().remove(
page.getFriendlyURL());
List<String> toAddresses = StrUtil.fromCSV(config.getCommentsEmail());
if (toAddresses.size() == 0) {
toAddresses.add(config.getSiteEmail());
}
for (String email : toAddresses) {
EmailUtil.sendEmail(createCommentLetter(comment, page),
COMMENT_LETTER_SUBJECT,
config.getSiteEmail(),
config.getSiteDomain() + " admin",
StringUtils.strip(email));
logger.debug("New comment letter was sent to " + email);
}
return comment;
}
private String createCommentLetter(CommentEntity comment, PageEntity page) {
ConfigEntity config = VosaoContext.getInstance().getConfig();
StringBuffer b = new StringBuffer();
b.append("<p>New comment was added to page ")
.append(config.getSiteDomain()).append(page.getFriendlyURL())
.append(" by ").append(comment.getName()).append("</p>")
.append(comment.getContent());
return b.toString();
}
private boolean isChangeGranted(List<Long> ids) {
if (ids.size() > 0) {
CommentEntity comment = getDao().getCommentDao().getById(ids.get(0));
ContentPermissionEntity permission = getContentPermissionBusiness()
.getPermission( comment.getPageUrl(),
VosaoContext.getInstance().getUser());
if (permission != null) {
return permission.isChangeGranted();
}
}
return false;
}
@Override
public void disable(List<Long> ids) {
clearPageCache(ids);
if (isChangeGranted(ids)) {
getDao().getCommentDao().disable(ids);
}
}
@Override
public void enable(List<Long> ids) {
clearPageCache(ids);
if (isChangeGranted(ids)) {
getDao().getCommentDao().enable(ids);
}
}
@Override
public void remove(List<Long> ids) {
clearPageCache(ids);
if (isChangeGranted(ids)) {
getDao().getCommentDao().remove(ids);
}
}
private void clearPageCache(List<Long> commentIds) {
for(Long id : commentIds) {
CommentEntity comment = getDao().getCommentDao().getById(id);
if (comment != null) {
getBusiness().getSystemService().getPageCache().remove(
comment.getPageUrl());
}
}
}
private ContentPermissionBusiness getContentPermissionBusiness() {
return getBusiness().getContentPermissionBusiness();
}
}