大名鼎鼎的jive论坛

/** * Copyright (C) 2001 Yasna.com. All rights reserved. * * =================================================================== * The Apache Software License, Version 1.1 * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by * Yasna.com (http://www.yasna.com)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Yazd" and "Yasna.com" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please * contact yazd@yasna.com. * * 5. Products derived from this software may not be called "Yazd", * nor may "Yazd" appear in their name, without prior written * permission of Yasna.com. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL YASNA.COM OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of Yasna.com. For more information * on Yasna.com, please see <http://www.yasna.com>. */ /** * Copyright (C) 2000 CoolServlets.com. All rights reserved. * * =================================================================== * The Apache Software License, Version 1.1 * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. The end-user documentation included with the redistribution, * if any, must include the following acknowledgment: * "This product includes software developed by * CoolServlets.com (http://www.coolservlets.com)." * Alternately, this acknowledgment may appear in the software itself, * if and wherever such third-party acknowledgments normally appear. * * 4. The names "Jive" and "CoolServlets.com" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please * contact webmaster@coolservlets.com. * * 5. Products derived from this software may not be called "Jive", * nor may "Jive" appear in their name, without prior written * permission of CoolServlets.com. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL COOLSERVLETS.COM OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many * individuals on behalf of CoolServlets.com. For more information * on CoolServlets.com, please see <http://www.coolservlets.com>. */ package com.Yasna.forum.database; import java.util.Iterator; import java.util.Enumeration; import java.util.Properties; import java.util.ArrayList; import java.util.Date; import java.sql.*; import java.io.*; import com.Yasna.forum.*; import com.Yasna.forum.filter.*; import com.Yasna.util.Cache; import com.Yasna.util.Cacheable; import com.Yasna.util.CacheSizes; /** * Database implementation of the Forum interface. It loads and stores forum * information from a a database. * * @see Forum */ public class DbForum implements Forum, Cacheable { /** DATABASE QUERIES **/ private static final String ADD_THREAD = "UPDATE yazdThread set forumID=? WHERE threadID=?"; protected static final String DELETE_THREAD = "DELETE FROM yazdThread WHERE threadID=?"; private static final String THREAD_COUNT = "SELECT count(*) FROM yazdThread WHERE forumID=?"; private static final String MESSAGE_COUNT = "SELECT count(*) FROM yazdThread, yazdMessage WHERE " + "yazdThread.forumID=? AND yazdThread.threadID=yazdMessage.threadID"; private static final String ADD_USER_PERM = "INSERT INTO yazdUserPerm(forumID,userID,permission) VALUES(?,?,?)"; private static final String REMOVE_USER_PERM = "DELETE FROM yazdUserPerm WHERE forumID=? AND userID=? AND permission=?"; private static final String USERS_WITH_PERM = "SELECT DISTINCT userID FROM yazdUserPerm WHERE forumID=? AND permission=?"; private static final String ADD_GROUP_PERM = "INSERT INTO yazdGroupPerm(forumID,groupID,permission) VALUES(?,?,?)"; private static final String REMOVE_GROUP_PERM = "DELETE FROM yazdGroupPerm WHERE forumID=? AND groupID=? AND permission=?"; private static final String GROUPS_WITH_PERM = "SELECT DISTINCT groupID FROM yazdGroupPerm WHERE forumID=? AND permission=?"; private static final String LOAD_FILTERS = "SELECT filterObject, filterIndex FROM yazdFilter WHERE forumID=? ORDER BY filterIndex ASC"; private static final String DELETE_FILTERS = "DELETE FROM yazdFilter WHERE forumID=?"; private static final String ADD_FILTER = "INSERT INTO yazdFilter(forumID,filterIndex,filterObject) VALUES(?,?,?)"; private static final String LOAD_PROPERTIES = "SELECT name, propValue FROM yazdForumProp WHERE forumID=?"; private static final String DELETE_PROPERTIES = "DELETE FROM yazdForumProp WHERE forumID=?"; private static final String INSERT_PROPERTY = "INSERT INTO yazdForumProp(forumID,name,propValue) VALUES(?,?,?)"; private static final String LOAD_FORUM_BY_ID = "SELECT forumID, name, description, creationDate, modifiedDate, moderated FROM yazdForum WHERE forumID=?"; private static final String LOAD_FORUM_BY_NAME = "S