com.liusoft.dlog4j.servlet.DLOG_ActionServlet.java Source code

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Here is the source code for com.liusoft.dlog4j.servlet.DLOG_ActionServlet.java

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/*
 *  DLOG_ActionServlet.java
 *  
 *  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
 *  (at your option) 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 Library 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.
 *  
 *  Author: Winter Lau
 *  http://dlog4j.sourceforge.net
 *  
 */
package com.liusoft.dlog4j.servlet;

import java.io.IOException;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.beanutils.ConvertUtils;
import org.apache.commons.beanutils.converters.SqlDateConverter;

import org.apache.commons.beanutils.converters.SqlTimestampConverter;
import org.apache.struts.action.ActionServlet;

import com.liusoft.dlog4j.DLOGSecurityManager;
import com.liusoft.dlog4j.DLOGUserManager;
import com.liusoft.dlog4j.DLOG_CacheManager;
import com.liusoft.dlog4j.Globals;
import com.liusoft.dlog4j.util.RequestUtils;

/**
 * StrutsHibernate?????
 * @author liudong
 */
public class DLOG_ActionServlet extends ActionServlet {

    private String encoding;

    static {
        ConvertUtils.register(new SqlDateConverter(null), java.sql.Date.class);
        ConvertUtils.register(new SqlTimestampConverter(null), java.sql.Timestamp.class);
    }

    /**
     * Globals.WEBAPP_PATH??access??????
     */
    public void init() throws ServletException {
        ServletContext context = getServletContext();
        if (Globals.WEBAPP_PATH == null)
            Globals.WEBAPP_PATH = context.getRealPath("");
        //?
        try {
            DLOGSecurityManager.init(context);
        } catch (IOException e) {
            throw new ServletException(e);
        }
        //???
        try {
            DLOGUserManager.init(context);
        } catch (Exception e) {
            throw new ServletException(e);
        }
        //Struts?
        super.init();

        encoding = getInitParameter("encoding");
        if (encoding == null)
            encoding = Globals.ENC_UTF_8;
    }

    /**
     * ???
     * @param req
     * @param res
     * @throws ServletException
     * @throws IOException
     * @see org.apache.struts.action.ActionServlet#process(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     */
    protected void process(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {

        HttpServletRequest request;
        if (RequestUtils.isMultipart(req)) {
            //???
            request = req;
            request.setCharacterEncoding(encoding);
        } else {
            //??
            String enc = req.getCharacterEncoding();
            if (req instanceof RequestProxy)
                request = req;
            else if (encoding.equalsIgnoreCase(enc))
                request = req;
            else
                request = new RequestProxy(req, encoding);
        }
        super.process(request, res);
    }

    public void destroy() {
        //?
        DLOG_CacheManager.shutdown();
        DLOGSecurityManager.destroy();
        DLOGUserManager.destroy();
        //Struts
        super.destroy();
    }

}