owferequest.java

一个工作流设计及定义的系统,可以直接与数据库结合进行系统工作流程的定义及应用.

/*
 * Copyright (c) 2005, John Mettraux, OpenWFE.org
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 * . Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.  
 * 
 * . 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.
 * 
 * . Neither the name of the "OpenWFE" nor the names of its contributors may be
 *   used to endorse or promote products derived from this software without
 *   specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS 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 THE COPYRIGHT OWNER OR 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.
 *
 * $Id: OwfeRequest.java,v 1.6 2005/06/24 09:57:10 jmettraux Exp $
 */

//
// OwfeRequest.java
//
// [e-mail]
//
// generated with 
// jtmpl 1.1.01 2004/05/19 ([e-mail])
//

package openwfe.org.input;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUpload;
import org.apache.commons.fileupload.DiskFileUpload;

import openwfe.org.Utils;
import openwfe.org.rest.RestUtils;


/**
 * A wrapper class gather an HttpServletRequest and an Apache MultiPartRequest
 *
 * <p><font size=2>CVS Info :
 * <br>$Author: jmettraux $
 * <br>$Id: OwfeRequest.java,v 1.6 2005/06/24 09:57:10 jmettraux Exp $ </font>
 *
 * @author [e-mail]
 */
public class OwfeRequest
{

    private final static org.apache.log4j.Logger log = org.apache.log4j.Logger
        .getLogger(OwfeRequest.class.getName());

    //
    // CONSTANTS & co

    //
    // FIELDS

    private HttpServletRequest originalRequest = null;
    private java.util.Map params = new java.util.HashMap();
    private java.util.List uploads = new java.util.ArrayList();

    //
    // CONSTRUCTORS

    /**
     * Builds an OwfeRequest wrapping an HttpServletRequest.
     */
    public OwfeRequest (final HttpServletRequest req, final String uploadPath)
        throws Exception
    {
        //log.debug("()");

        this.originalRequest = req;

        req.setCharacterEncoding(Utils.getEncoding());

        if (FileUpload.isMultipartContent(req))
        {
            //log.debug("() (multi)");

            DiskFileUpload dfu = new DiskFileUpload();
            dfu.setHeaderEncoding(Utils.getEncoding());
            dfu.setRepositoryPath(uploadPath);

            final java.util.List items = dfu.parseRequest(req);

            final java.util.Iterator it = items.iterator();
            while (it.hasNext())
            {
                final FileItem fi = (FileItem)it.next();

                //log.debug("() (multi) fieldName >"+fi.getFieldName()+"<");

                if (fi.isFormField())
                {
                    this.params.put
                        (fi.getFieldName(), 
                         fi.getString(Utils.getEncoding()));
                }
                else
                {
                    final java.io.File f = new java.io.File
                        (uploadPath + java.io.File.separator + fi.getName());

                    final Upload u = new Upload
                        (fi.getName(),
                         f.getAbsolutePath(),
                         fi.getContentType(),
                         fi.getSize());

                    fi.write(f);

                    this.uploads.add(u);

                    this.params.put(fi.getFieldName(), u.getFileName());
                }
            }

            //log.debug
            //    ("() (multi) req.queryString is '"+req.getQueryString()+"'");

            final java.util.Map queryParams = 
                RestUtils.extractParamsFromQueryString(req.getQueryString());

            this.params.putAll(queryParams);
        }
        else
        {
            //log.debug("() (not multi)");

            final java.util.Enumeration en = req.getParameterNames();
            while (en.hasMoreElements())
            {
                final String paramName = (String)en.nextElement();

                //log.debug("() (not multi) paramName >"+paramName+"<");

                String paramValue = req.getParameter(paramName);

                // not necessary :
                //paramValue = new String 
                //    (paramValue.getBytes(Utils.getEncoding()), 
                //     "UTF-8");

                //log.debug("() paramValue >"+paramValue+"<");

                this.params.put(paramName, paramValue);
            }
        }
    }

    //
    // BEAN METHODS

    public HttpServletRequest getOriginalRequest ()
    {
        return this.originalRequest;
    }

    public java.util.List getUploads ()
    {
        return this.uploads;
    }

    //
    // METHODS

    public String getParameter (final String paramName)
    {
        return (String)this.params.get(paramName);
    }

    public java.util.Set getParameterNames ()
    {
        return this.params.keySet();
    }

    //
    // STATIC METHODS

}