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1
64
65 package com.jcorporate.expresso.core.jsdkapi;
66
67 import com.jcorporate.expresso.core.misc.StringUtil;
68 import org.apache.log4j.Logger;
69
70 import javax.servlet.RequestDispatcher  ;
71 import javax.servlet.ServletException ;
72 import javax.servlet.http.HttpServletRequest ;
73 import javax.servlet.http.HttpServletResponse ;
74 import java.io.IOException ;
75
76
77
86 public class GenericDispatcher {
87 private static Logger log = Logger.getLogger(GenericDispatcher.class);
88
89
92 public GenericDispatcher() {
93 }
94
95
96
107 public static void forward(HttpServletRequest req, HttpServletResponse res,
108 String URL)
109 throws ServletException , IOException {
110 StringUtil.assertNotBlank(URL, "URL to forward to may not be blank");
111
112 RequestDispatcher rd = req.getRequestDispatcher(URL);
114
115 if (rd == null) {
116 throw new ServletException ("Request dispatcher was null - cannot forward to URL '" +
117 URL + "'");
118 }
119 if (log.isDebugEnabled()) {
120 log.debug("Forwarding to '" + URL + "'");
121 }
122
123 rd.forward(req, res);
124 }
125
126
127
128
139 public static void include(HttpServletRequest req, HttpServletResponse res,
140 String URL)
141 throws ServletException , IOException {
142 StringUtil.assertNotBlank(URL, "URL to include may not be blank");
143
144 RequestDispatcher rd = req.getRequestDispatcher(URL);
146
147 if (rd == null) {
148 throw new ServletException ("Request dispatcher was null - cannot include URL '" +
149 URL + "'");
150 }
151 if (log.isDebugEnabled()) {
152 log.debug("Including '" + URL + "'");
153 }
154
155 rd.include(req, res);
156 }
157
158
159
160
167 public static String getContextPath(HttpServletRequest req) {
168 return req.getContextPath();
169 }
170
171 }
172 |
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