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1   /*
2    * $Source$
3    * $Revision$
4    *
5    * Copyright (C) 2000 William Chesters
6    *
7    * Part of Melati (http://melati.org), a framework for the rapid
8    * development of clean, maintainable web applications.
9    *
10   * Melati is free software; Permission is granted to copy, distribute
11   * and/or modify this software under the terms either:
12   *
13   * a) the GNU General Public License as published by the Free Software
14   *    Foundation; either version 2 of the License, or (at your option)
15   *    any later version,
16   *
17   *    or
18   *
19   * b) any version of the Melati Software License, as published
20   *    at http://melati.org
21   *
22   * You should have received a copy of the GNU General Public License and
23   * the Melati Software License along with this program;
24   * if not, write to the Free Software Foundation, Inc.,
25   * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA to obtain the
26   * GNU General Public License and visit http://melati.org to obtain the
27   * Melati Software License.
28   *
29   * Feel free to contact the Developers of Melati (http://melati.org),
30   * if you would like to work out a different arrangement than the options
31   * outlined here.  It is our intention to allow Melati to be used by as
32   * wide an audience as possible.
33   *
34   * This program is distributed in the hope that it will be useful,
35   * but WITHOUT ANY WARRANTY; without even the implied warranty of
36   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
37   * GNU General Public License for more details.
38   *
39   * Contact details for copyright holder:
40   *
41   *     William Chesters <williamc At paneris.org>
42   *     http://paneris.org/~williamc
43   *     Obrechtstraat 114, 2517VX Den Haag, The Netherlands
44   */
45  
46  package org.melati.util;
47  
48  import java.util.Enumeration;
49  import java.util.Hashtable;
50  import javax.servlet.http.HttpSession;
51  import javax.servlet.http.HttpServletRequest;
52  
53  /**
54   * The parameters of an Http Servlet Request.
55   */
56  public class HttpServletRequestParameters {
57  
58    final Hashtable<String,Object> parameters;
59    final String requestURL;
60    final String queryString;
61    final String method;
62    final String sessionID;
63  
64    /**
65     * Constructor.
66     * @param request to extract parameters from
67     */
68    @SuppressWarnings("unchecked")
69    public HttpServletRequestParameters(HttpServletRequest request) {
70      parameters = new Hashtable<String,Object> ();
71      for (Enumeration<String> p = request.getParameterNames();
72           p.hasMoreElements();) {
73        String name = (String)p.nextElement();
74        parameters.put(name, request.getParameterValues(name));
75      }
76  
77      requestURL = HttpUtil.getRelativeRequestURL(request);
78      queryString = request.getQueryString();
79      method = request.getMethod();
80      HttpSession session = request.getSession(true);
81      sessionID = session == null ? null : session.getId();
82    }
83  
84    /**
85     * @return the extracted parameters
86     */
87    public Hashtable<String, Object> getParameters() {
88      return parameters;
89    }
90  
91    /**
92     * @return URL String 
93     */
94    public String continuationURL() {
95      return
96          requestURL +
97          (method.equals("PUT") || queryString == null ? "" : "?" + queryString);
98    }
99  }