baseaction.java

来自「jGossip是一个简单而功能强大的Java论坛软件（消息板）」· Java 代码 · 共 272 行

/*
 * $$Id: BaseAction.java,v 1.17 2004/06/28 20:26:29 bel70 Exp $$
 *
 * ***** BEGIN LICENSE BLOCK *****
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (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.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
 * the License for the specific language governing rights and
 * limitations under the License.
 *
 * The Original Code is JGossip forum code.
 *
 * The Initial Developer of the Original Code is the JResearch, Org.
 * Portions created by the Initial Developer are Copyright (C) 2004
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *              Dmitry Belov <[e-mail]>
 *
 * ***** END LICENSE BLOCK ***** */
/*
 * Created on 09.05.2003
 *
 */
package org.jresearch.gossip.actions;

import org.apache.commons.logging.Log;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.util.MessageResources;

import org.jresearch.gossip.IConst;
import org.jresearch.gossip.beans.user.EntryList;
import org.jresearch.gossip.beans.user.User;
import org.jresearch.gossip.dao.ForumDAO;
import org.jresearch.gossip.exception.JGossipException;
import org.jresearch.gossip.exception.SystemException;
import org.jresearch.gossip.log.ForumLog;

import java.sql.SQLException;

import java.util.Date;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import javax.sql.DataSource;


/**
 * DOCUMENT ME!
 *
 * @author Bel
 */
public abstract class BaseAction extends Action {
    private int accessLevel;
    public Log forumLogger = ForumLog.getInstance().getForumLogger();

    /**
     * DOCUMENT ME!
     *
     * @param request DOCUMENT ME!
     * @param mess DOCUMENT ME!
     * @param append DOCUMENT ME!
     */
    public void log(HttpServletRequest request, String mess, String append) {
        HttpSession session = request.getSession();
        User user = (User) session.getAttribute(IConst.SESSION.USER_KEY);
        MessageResources messages = getResources(request);

        StringBuffer sb = new StringBuffer();
        sb.append(request.getRemoteAddr());
        sb.append(" User:");
        sb.append((user.getName() == null) ? "<anonimous>" : user.getName());
        sb.append(" ");
        sb.append(messages.getMessage(mess));
        sb.append(" ");
        sb.append(append);
        forumLogger.info(sb.toString());
    }

    /**
     * DOCUMENT ME!
     *
     * @param session DOCUMENT ME!
     * @param key DOCUMENT ME!
     * @param arg0 DOCUMENT ME!
     * @param arg1 DOCUMENT ME!
     */
    public void setStatusMessage(HttpServletRequest request, String key, String arg0,
        String arg1) {
        	
        MessageResources messages=getResources(request);
        String message=	messages.getMessage(super.getLocale(request),key,arg0,arg1);
		request.getSession().setAttribute(IConst.SESSION.STATUS_MESSAGE, message);
    }

    /**
     * DOCUMENT ME!
     *
     * @param session DOCUMENT ME!
     * @param key DOCUMENT ME!
     * @param arg0 DOCUMENT ME!
     */
    public void setStatusMessage(HttpServletRequest request, String key, String arg0) {
        setStatusMessage(request, key, arg0, "");
    }

    /**
     * DOCUMENT ME!
     *
     * @param session DOCUMENT ME!
     * @param key DOCUMENT ME!
     */
    public void setStatusMessage(HttpServletRequest request, String key) {
        setStatusMessage(request, key, "");
    }

    /**
     * DOCUMENT ME!
     *
     * @param request DOCUMENT ME!
     * @param mess DOCUMENT ME!
     */
    public void log(HttpServletRequest request, String mess) {
        log(request, mess, "");
    }

    /**
     * DOCUMENT ME!
     *
     * @param request DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    public boolean haveAccess(HttpServletRequest request) {
        HttpSession session = request.getSession();
        User user = (User) session.getAttribute(IConst.SESSION.USER_KEY);
        boolean access = (user.getStatus() >= this.accessLevel);

        if (!access) {
            ForumLog.getInstance().getForumLogger().warn(request.getRemoteAddr() +
                " " + user.getName() + " " +
                getResources(request).getMessage("logs.LOG27") + " " +
                request.getRequestURI());
        }

        return access;
    }

    /**
     * DOCUMENT ME!
     *
     * @param request DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    public DataSource getDataSource(HttpServletRequest request) {
        return (DataSource) request.getSession().getServletContext()
                                   .getAttribute(IConst.CONTEXT.DS_KEY);
    }

    /**
     * DOCUMENT ME!
     *
     * @param mapping DOCUMENT ME!
     * @param form DOCUMENT ME!
     * @param request DOCUMENT ME!
     * @param response DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     *
     * @throws Exception DOCUMENT ME!
     */
    public ActionForward execute(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response)
        throws Exception {
        HttpSession session = request.getSession();
        MessageResources messages = getResources(request);

        if (!haveAccess(request)) {
            return (mapping.findForward("jgossip-denied"));
        }

        ActionForward forward = this.process(mapping, form, request, response);
        afterProcess(mapping, form, request, response);
        request.setAttribute(IConst.REQUEST.REQUEST_URI, request.getRequestURI());

        ForumDAO forumDAO = ForumDAO.getInstance();

        if (session.getAttribute(IConst.SESSION.LAST_UPDATE_DATE) == null) {
            session.setAttribute(IConst.SESSION.LAST_UPDATE_DATE, new Date());
        }

        try {
            forumDAO.setDataSource(getDataSource(request));

            EntryList elist = new EntryList();
            forumDAO.fillEntryList(elist);
            request.setAttribute(IConst.REQUEST.ENTRY_LIST, elist);

            if ((session.getAttribute(IConst.SESSION.GROUPS_KEY) == null) ||
                    (((Date) session.getAttribute(
                        IConst.SESSION.LAST_UPDATE_DATE)).before(
                        (Date) getServlet().getServletContext().getAttribute(IConst.CONTEXT.LAST_UPDATE_DATE)))) {
                User user = (User) session.getAttribute(IConst.SESSION.USER_KEY);
                session.setAttribute(IConst.SESSION.GROUPS_KEY,
                    forumDAO.getGroups(user.getStatus(), false));
                session.setAttribute(IConst.SESSION.LAST_UPDATE_DATE, new Date());
            }
        } catch (SQLException sqle) {
            getServlet().log("Connection.process", sqle);
            throw new SystemException(sqle);
        }

        return (forward);
    }

    /**
     * DOCUMENT ME!
     *
     * @param mapping DOCUMENT ME!
     * @param form DOCUMENT ME!
     * @param request DOCUMENT ME!
     * @param response DOCUMENT ME!
     */
    public void afterProcess(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response) {
    }

    /**
     * DOCUMENT ME!
     *
     * @param mapping DOCUMENT ME!
     * @param form DOCUMENT ME!
     * @param request DOCUMENT ME!
     * @param response DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     * @throws SystemException
     */
    public abstract ActionForward process(ActionMapping mapping,
        ActionForm form, HttpServletRequest request,
        HttpServletResponse response) throws JGossipException;

    /**
     * DOCUMENT ME!
     *
     * @return
     */
    public int getAccessLevel() {
        return accessLevel;
    }

    /**
     * DOCUMENT ME!
     *
     * @param i
     */
    public void setAccessLevel(int i) {
        accessLevel = i;
    }
}