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Java > Open Source Codes > com > micronova > util > servlet > HttpDispatch


1 /*
2
3 Copyright 2003-2007 MicroNova (R)
4 All rights reserved.
5
6 Redistribution and use in source and binary forms, with or
7 without modification, are permitted provided that the following
8 conditions are met:
9
10     * Redistributions of source code must retain the above copyright
11     notice, this list of conditions and the following disclaimer.
12
13     * Redistributions in binary form must reproduce the above copyright
14     notice, this list of conditions and the following disclaimer in the
15     documentation and/or other materials provided with the distribution.
16
17     * Neither the name of MicroNova nor the names of its contributors
18     may be used to endorse or promote products derived from this
19     software without specific prior written permission.
20
21 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 POSSIBILITY OF SUCH DAMAGE.
32
33 */
34
35
36 package com.micronova.util.servlet;
37
38 import javax.servlet.*;
39 import javax.servlet.http.*;
40 import javax.servlet.jsp.*;
41 import java.io.*;
42 import java.util.*;
43
44 import com.micronova.util.*;
45
46 /** Servlet dispatching with object passing */
47
48 public class HttpDispatch
49 {
50     /** dispatch include with object passing */
51
52     public static String JavaDoc include(RequestDispatcher dispatcher, String JavaDoc path, HttpServletRequest request, HttpServletResponse response, Object JavaDoc requestObject) throws Exception JavaDoc
53     {
54         BufferedHttpServletResponse bufferedResponse = new BufferedHttpServletResponse(response);
55
56         DispatchHttpServletRequest mappedRequest = new DispatchHttpServletRequest(request, path, request, requestObject);
57
58         dispatcher.include(mappedRequest, bufferedResponse);
59
60         return bufferedResponse.getString();
61     }
62
63     /** dispatch include using PageContext */
64
65     public static String JavaDoc include(PageContext pageContext, String JavaDoc path, String JavaDoc contextPath, Object JavaDoc requestObject) throws Exception JavaDoc
66     {
67         ServletRequest request = pageContext.getRequest();
68         ServletResponse response = pageContext.getResponse();
69
70         ServletContext context = pageContext.getServletContext();
71
72         if (contextPath != null)
73         {
74             context = context.getContext(contextPath);
75         }
76
77         RequestDispatcher dispatcher = context.getRequestDispatcher(path);
78
79         return include(dispatcher, path, (HttpServletRequest)request, (HttpServletResponse)response, requestObject);
80     }
81
82     /** dispatch include using PageContext */
83
84     public static String JavaDoc include(PageContext pageContext, String JavaDoc path, Object JavaDoc requestObject) throws Exception JavaDoc
85     {
86         return include(pageContext, path, null, requestObject);
87     }
88
89     /** dispatch forward with object passing */
90
91     public static void forward(RequestDispatcher dispatcher, String JavaDoc path, HttpServletRequest request, HttpServletResponse response, Object JavaDoc requestObject) throws Exception JavaDoc
92     {
93         DispatchHttpServletRequest mappedRequest = new DispatchHttpServletRequest(request, path, request, requestObject);
94
95         dispatcher.forward(mappedRequest, response);
96     }
97
98     /** dispatch include using PageContext */
99
100     public static void forward(PageContext pageContext, String JavaDoc path, String JavaDoc contextPath, Object JavaDoc requestObject) throws Exception JavaDoc
101     {
102         ServletRequest request = pageContext.getRequest();
103         ServletResponse response = pageContext.getResponse();
104
105         ServletContext context = pageContext.getServletContext();
106
107         if (contextPath != null)
108         {
109             context = context.getContext(contextPath);
110         }
111
112         RequestDispatcher dispatcher = context.getRequestDispatcher(path);
113
114         forward(dispatcher, path, (HttpServletRequest)request, (HttpServletResponse)response, requestObject);
115         
116     }
117
118     /** dispatch forward using PageContext */
119
120     public static void forward(PageContext pageContext, String JavaDoc path, Object JavaDoc requestObject) throws Exception JavaDoc
121     {
122         forward(pageContext, path, null, requestObject);
123     }
124
125 }
126
127
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