watchwebhandler.java

解觖java技术中后台无法上传数给的情况

/*
 * $Header: /cvsroot/mvnforum/mvnforum/src/com/mvnforum/user/WatchWebHandler.java,v 1.27 2006/04/14 17:05:27 minhnn Exp $
 * $Author: minhnn $
 * $Revision: 1.27 $
 * $Date: 2006/04/14 17:05:27 $
 *
 * ====================================================================
 *
 * Copyright (C) 2002-2006 by MyVietnam.net
 *
 * All copyright notices regarding mvnForum MUST remain 
 * intact in the scripts and in the outputted HTML.
 * The "powered by" text/logo with a link back to
 * http://www.mvnForum.com and http://www.MyVietnam.net in 
 * the footer of the pages MUST remain visible when the pages
 * are viewed on the internet or intranet.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Support can be obtained from support forums at:
 * http://www.mvnForum.com/mvnforum/index
 *
 * Correspondence and Marketing Questions can be sent to:
 * info at MyVietnam net
 *
 * @author: Minh Nguyen  
 * @author: Mai  Nguyen  
 */
package com.mvnforum.user;

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.sql.Timestamp;
import java.util.*;

import javax.mail.MessagingException;

import com.mvnforum.MVNForumConfig;
import com.mvnforum.MVNForumResourceBundle;
import com.mvnforum.auth.*;
import com.mvnforum.db.*;
import freemarker.template.TemplateException;
import net.myvietnam.mvncore.exception.*;
import net.myvietnam.mvncore.util.*;
import net.myvietnam.mvncore.web.GenericRequest;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class WatchWebHandler {

    private static Log log = LogFactory.getLog(WatchWebHandler.class);

    private OnlineUserManager userManager = OnlineUserManager.getInstance();

    //private DateFormat dateFormat = SimpleDateFormat.getDateTimeInstance(SimpleDateFormat.DEFAULT, SimpleDateFormat.DEFAULT);

    public WatchWebHandler() {
    }

    void sendMail()
        throws AssertionException, DatabaseException, MessagingException, BadInputException, ObjectNotFoundException, TemplateException, IOException {

        if (MVNForumConfig.getEnableWatch() == false) {
            log.warn("Ingore Watch sendMail because this feature is disabled by administrator.");
            return;
        }
        String forumBase = ParamUtil.getServerPath() + ParamUtil.getContextPath() + UserModuleConfig.getUrlPattern();
        //log.debug("Forum base = " + forumBase);

        //get the list of watch for each member, the watch is choosen based on oldest lastsent time
        Collection beans = DAOFactory.getWatchDAO().getMemberBeans();
        //log.debug("Watch: total member = " + beans.size());
        Iterator iterator = beans.iterator();
        while (iterator.hasNext()) {
            WatchBean watchBean = (WatchBean)iterator.next();
            int memberID = watchBean.getMemberID();

            // check if member is enable here
            if (DAOFactory.getMemberDAO().getActivateCode(memberID).equals(MemberBean.MEMBER_ACTIVATECODE_ACTIVATED) == false) {
                // Not activated, then we continue with the next user
                continue;
            }

            // Check the frequency of the update
            Timestamp lastSent = watchBean.getWatchLastSentDate();
            Timestamp now = DateUtil.getCurrentGMTTimestamp();

            // We will now support a single watch standard, but should be
            // bitmasked in future to support multiple watch schedule for the same
            // thread or forum
            long minimumWaitTime = 0;
            int watchOption = watchBean.getWatchOption();
            if (watchOption == WatchBean.WATCH_OPTION_DEFAULT) {
                watchOption = MVNForumConfig.getDefaultWatchOption();
            }

            switch (watchOption) {
                case WatchBean.WATCH_OPTION_LIVE:
                    minimumWaitTime = 0;
                    break;
                case WatchBean.WATCH_OPTION_HOURLY:
                    minimumWaitTime = DateUtil.HOUR;
                    break;
                case WatchBean.WATCH_OPTION_DAILY:
                    minimumWaitTime = DateUtil.DAY;
                    break;
                case WatchBean.WATCH_OPTION_WEEKLY:
                    minimumWaitTime = DateUtil.WEEK;
                    break;
                default:// currently only default is processed (WatchOption = 0)
                    // note that watch option might have any value so we have to have default fallback
                    minimumWaitTime = DateUtil.DAY;
                    break;
            }
            if ( (now.getTime() - lastSent.getTime()) > minimumWaitTime ) {
                sendMail_forMember(memberID, forumBase, lastSent);
            }
        }
    }

    void sendMail_forMember(int memberID, String forumBase, Timestamp lastSent)
        throws AssertionException, DatabaseException, MessagingException, BadInputException, ObjectNotFoundException, TemplateException, IOException {

        MVNForumPermission permission = null;
        try {
            permission = MVNForumPermissionFactory.getAuthenticatedPermission(memberID);
        } catch (AssertionException e) {
            log.error("Cannot create watch mail for Guest with id = " + memberID, e);
            return;// do nothing, just return if member is guest.
        }

        if (permission.isActivated() == false) {
            // if member is not activated, then we ignore this member
            return;
        }

        Collection watchBeans = DAOFactory.getWatchDAO().getWatches_forMember(memberID);
        //log.debug("Watch size = " + watchBeans.size() + " for memberid = " + memberID);
        Timestamp now = DateUtil.getCurrentGMTTimestamp();

        MemberBean receiver = null;
        try {
            receiver = DAOFactory.getMemberDAO().getMember_forViewCurrentMember(memberID);
        } catch (ObjectNotFoundException e) {
            log.error("Cannot get member with id = " + memberID, e);
            return;// do nothing just return if member does not exist
        }

        //then optimize the watchBeans
        watchBeans = WatchUtil.optimize(watchBeans);

        WatchMail watchMail = new WatchMail(receiver, permission, forumBase, lastSent, now);

        for (Iterator watchIterator = watchBeans.iterator(); watchIterator.hasNext(); ) {
            WatchBean watchBean = (WatchBean)watchIterator.next();
            watchMail.appendWatch(watchBean);
        }