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1
3 package jodd.servlet;
4
5 import jodd.servlet.filter.CharArrayResponseWrapper;
6
7 import javax.servlet.http.HttpServletRequest  ;
8 import javax.servlet.http.HttpServletResponse ;
9 import javax.servlet.ServletRequest ;
10 import javax.servlet.ServletResponse ;
11 import javax.servlet.ServletException ;
12 import javax.servlet.RequestDispatcher ;
13 import javax.servlet.ServletContext ;
14 import java.io.IOException ;
15
16
19 public class DispatcherUtil {
20
21
23
26 public static boolean include(ServletRequest request, ServletResponse response, String page) throws IOException , ServletException {
27 RequestDispatcher dispatcher = request.getRequestDispatcher(page);
28 if (dispatcher != null) {
29 dispatcher.include(request, response);
30 return true;
31 }
32 return false;
33 }
34
35
38 public static boolean includeNamed(HttpServletRequest request, ServletResponse response, String resource) throws IOException , ServletException {
39 return includeNamed(request.getSession().getServletContext(), request, response, resource);
40 }
41
42
43
46 public static boolean includeNamed(ServletContext context, ServletRequest request, ServletResponse response, String page) throws IOException , ServletException {
47 RequestDispatcher dispatcher = context.getNamedDispatcher(page);
48 if (dispatcher != null) {
49 dispatcher.include(request, response);
50 return true;
51 }
52 return false;
53 }
54
55
56
57
60 public static boolean includeAbsolute(HttpServletRequest request, HttpServletResponse response, String page) throws IOException , ServletException {
61 return includeAbsolute(request.getSession().getServletContext(), request, response, page);
62 }
63
64
65
68 public static boolean includeAbsolute(ServletContext context, ServletRequest request, HttpServletResponse response, String page) throws IOException , ServletException {
69 RequestDispatcher dispatcher = context.getRequestDispatcher(page);
70 if (dispatcher != null) {
71 dispatcher.include(request, response);
72 return true;
73 }
74 return false;
75 }
76
77
78
80 public static CharArrayResponseWrapper wrap(ServletRequest request, HttpServletResponse response, String page) throws IOException , ServletException {
81 CharArrayResponseWrapper wrapper = new CharArrayResponseWrapper(response);
82 include(request, wrapper, page);
83 return wrapper;
84 }
85
86 public static CharArrayResponseWrapper wrapNamed(HttpServletRequest request, HttpServletResponse response, String resource) throws IOException , ServletException {
87 CharArrayResponseWrapper wrapper = new CharArrayResponseWrapper(response);
88 includeNamed(request, wrapper, resource);
89 return wrapper;
90 }
91
92 public static CharArrayResponseWrapper wrapNamed(ServletContext context, HttpServletRequest request, HttpServletResponse response, String resource) throws IOException , ServletException {
93 CharArrayResponseWrapper wrapper = new CharArrayResponseWrapper(response);
94 includeNamed(context, request, wrapper, resource);
95 return wrapper;
96 }
97
98 public static CharArrayResponseWrapper wrapAbsolute(HttpServletRequest request, HttpServletResponse response, String page) throws IOException , ServletException {
99 CharArrayResponseWrapper wrapper = new CharArrayResponseWrapper(response);
100 includeAbsolute(request, wrapper, page);
101 return wrapper;
102 }
103
104
105 public static CharArrayResponseWrapper wrapAbsolute(ServletContext context, ServletRequest request, HttpServletResponse response, String page) throws IOException , ServletException {
106 CharArrayResponseWrapper wrapper = new CharArrayResponseWrapper(response);
107 includeAbsolute(context, request, wrapper, page);
108 return wrapper;
109 }
110
111
112
114
117 public static boolean forward(ServletRequest request, ServletResponse response, String page) throws IOException , ServletException {
118 RequestDispatcher dispatcher = request.getRequestDispatcher(page);
119 if (dispatcher != null) {
120 dispatcher.forward(request, response);
121 return true;
122 }
123 return false;
124 }
125
126
129 public static boolean forwardNamed(HttpServletRequest request, ServletResponse response, String resource) throws IOException , ServletException {
130 return forwardNamed(request.getSession().getServletContext(), request, response, resource);
131 }
132
133
136 public static boolean forwardNamed(ServletContext context, ServletRequest request, ServletResponse response, String resource) throws IOException , ServletException {
137 RequestDispatcher dispatcher = context.getNamedDispatcher(resource);
138 if (dispatcher != null) {
139 dispatcher.forward(request, response);
140 return true;
141 }
142 return false;
143 }
144
145
148 public static boolean forwardAbsolute(HttpServletRequest request, ServletResponse response, String page) throws IOException , ServletException {
149 return forwardAbsolute(request.getSession().getServletContext(), request, response, page);
150 }
151
152
155 public static boolean forwardAbsolute(ServletContext context, ServletRequest request, ServletResponse response, String resource) throws IOException , ServletException {
156 RequestDispatcher dispatcher = context.getRequestDispatcher(resource);
157 if (dispatcher != null) {
158 dispatcher.forward(request, response);
159 return true;
160 }
161 return false;
162 }
163
164
166
167
170 public static void redirect(HttpServletRequest request, HttpServletResponse response, String url) throws IOException {
171 if (url.startsWith("/") == true) {
172 url = request.getContextPath() + url;
173 }
174 response.sendRedirect(response.encodeRedirectURL(url));
175 }
176
177
178
180
183 public static String getActionPath(HttpServletRequest request) {
184 return makeActionPath(request.getRequestURI(), request.getQueryString());
185 }
186
187
190 public static String makeActionPath(String uri, String query) {
191 if ((query != null) && (query.length() != 0)) {
192 uri += '?' + query;
193 }
194 return uri;
195 }
196
197
198
200 public static final String INCLUDE_REQUEST_URI = "javax.servlet.include.request_uri";
201 public static final String INCLUDE_CONTEXT_PATH = "javax.servlet.include.context_path";
202 public static final String INCLUDE_SERVLET_PATH = "javax.servlet.include.servlet_path";
203 public static final String INCLUDE_PATH_INFO = "javax.servlet.include.path_info";
204 public static final String INCLUDE_QUERY_STRING = "javax.servlet.include.query_string";
205
206
207 public static String getIncludeRequestUri(HttpServletRequest request) {
208 return (String ) request.getAttribute(INCLUDE_REQUEST_URI);
209 }
210
211 public static String getIncludeContextPath(HttpServletRequest request) {
212 return (String ) request.getAttribute(INCLUDE_CONTEXT_PATH);
213 }
214
215 public static String getIncludeServletPath(HttpServletRequest request) {
216 return (String ) request.getAttribute(INCLUDE_SERVLET_PATH);
217 }
218
219 public static String getIncludePathInfo(HttpServletRequest request) {
220 return (String ) request.getAttribute(INCLUDE_PATH_INFO);
221 }
222
223 public static String getIncludeQueryString(HttpServletRequest request) {
224 return (String ) request.getAttribute(INCLUDE_QUERY_STRING);
225 }
226
227
229 public static final String FORWARD_REQUEST_URI = "javax.servlet.forward.request_uri";
230 public static final String FORWARD_CONTEXT_PATH = "javax.servlet.forward.context_path";
231 public static final String FORWARD_SERVLET_PATH = "javax.servlet.forward.servlet_path";
232 public static final String FORWARD_PATH_INFO = "javax.servlet.forward.path_info";
233 public static final String FORWARD_QUERY_STRING = "javax.servlet.forward.query_string";
234
235 public static String getForwardRequestUri(HttpServletRequest request) {
236 return (String ) request.getAttribute(FORWARD_REQUEST_URI);
237 }
238
239 public static String getForwardContextPath(HttpServletRequest request) {
240 return (String ) request.getAttribute(FORWARD_CONTEXT_PATH);
241 }
242
243 public static String getForwardServletPath(HttpServletRequest request) {
244 return (String ) request.getAttribute(FORWARD_SERVLET_PATH);
245 }
246
247 public static String getForwardPathInfo(HttpServletRequest request) {
248 return (String ) request.getAttribute(FORWARD_PATH_INFO);
249 }
250
251 public static String getForwardQueryString(HttpServletRequest request) {
252 return (String ) request.getAttribute(FORWARD_QUERY_STRING);
253 }
254
255
257
260 public static boolean isPageIncluded(HttpServletRequest request, HttpServletResponse response) {
261 return (response.isCommitted() || (getIncludeServletPath(request) != null));
262 }
263
264
268 public static boolean isTopLevelRequest(HttpServletRequest request) {
269 return (getForwardRequestUri(request) == null) && (getIncludeRequestUri(request) == null);
270 }
271
272
274
277 public static String getBaseRequestUri(HttpServletRequest request) {
278 String result = getForwardRequestUri(request);
279 if (result == null) {
280 result = request.getRequestURI();
281 }
282 return result;
283 }
284
287 public static String getRequestUri(HttpServletRequest request) {
288 String result = getIncludeRequestUri(request);
289 if (result == null) {
290 result = request.getRequestURI();
291 }
292 return result;
293 }
294
295 public static String getBaseContextPath(HttpServletRequest request) {
296 String result = getForwardContextPath(request);
297 if (result == null) {
298 result = request.getContextPath();
299 }
300 return result;
301 }
302 public static String getContextPath(HttpServletRequest request) {
303 String result = getIncludeContextPath(request);
304 if (result == null) {
305 result = request.getContextPath();
306 }
307 return result;
308 }
309
310
311 public static String getBaseServletPath(HttpServletRequest request) {
312 String result = getForwardServletPath(request);
313 if (result == null) {
314 result = request.getServletPath();
315 }
316 return result;
317 }
318 public static String getServletPath(HttpServletRequest request) {
319 String result = getIncludeServletPath(request);
320 if (result == null) {
321 result = request.getServletPath();
322 }
323 return result;
324 }
325
326
327 public static String getBasePathInfo(HttpServletRequest request) {
328 String result = getForwardPathInfo(request);
329 if (result == null) {
330 result = request.getPathInfo();
331 }
332 return result;
333 }
334 public static String getPathInfo(HttpServletRequest request) {
335 String result = getIncludePathInfo(request);
336 if (result == null) {
337 result = request.getPathInfo();
338 }
339 return result;
340 }
341
342
343 public static String getBaseQueryString(HttpServletRequest request) {
344 String result = getForwardQueryString(request);
345 if (result == null) {
346 result = request.getQueryString();
347 }
348 return result;
349 }
350 public static String getQueryString(HttpServletRequest request) {
351 String result = getIncludeQueryString(request);
352 if (result == null) {
353 result = request.getQueryString();
354 }
355 return result;
356 }
357 }
358 |
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