Source Code Cross Referenced for HttpServletRequestWrapper.java in  » EJB-Server-resin-3.1.5 » jsdk » javax » servlet » http » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » jsdk » javax.servlet.http 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 1998-2001 Caucho Technology -- all rights reserved
003:         *
004:         * This file is part of Resin(R) Open Source
005:         *
006:         * Each copy or derived work must preserve the copyright notice and this
007:         * notice unmodified.
008:         *
009:         * Resin Open Source is free software; you can redistribute it and/or modify
010:         * it under the terms of the GNU General Public License as published by
011:         * the Free Software Foundation; either version 2 of the License, or
012:         * (at your option) any later version.
013:         *
014:         * Resin Open Source is distributed in the hope that it will be useful,
015:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
016:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
017:         * of NON-INFRINGEMENT.  See the GNU General Public License for more
018:         * details.
019:         *
020:         * You should have received a copy of the GNU General Public License
021:         * along with Resin Open Source; if not, write to the
022:         *   Free SoftwareFoundation, Inc.
023:         *   59 Temple Place, Suite 330
024:         *   Boston, MA 02111-1307  USA
025:         *
026:         * @author Scott Ferguson
027:         *
028:         * $Id: HttpServletRequestWrapper.java,v 1.2 2004/09/29 00:12:47 cvs Exp $
029:         */
030:
031:        package javax.servlet.http;
032:
033:        import javax.servlet.ServletRequest;
034:        import javax.servlet.ServletRequestWrapper;
035:        import java.security.Principal;
036:        import java.util.Enumeration;
037:
038:        /**
039:         * Wraps a servlet request in another request.  Filters may
040:         * use ServletRequestWrapper to modify the headers passed to the servlet.
041:         *
042:         * <p/>The default methods just call the wrapped request methods.
043:         *
044:         * @since servlet 2.3
045:         */
046:        public class HttpServletRequestWrapper extends ServletRequestWrapper
047:                implements  HttpServletRequest {
048:            // the wrapped request
049:            private HttpServletRequest request;
050:
051:            /**
052:             * Creates a new request wrapper
053:             *
054:             * @param request the wrapped request
055:             */
056:            public HttpServletRequestWrapper(HttpServletRequest request) {
057:                super (request);
058:
059:                this .request = request;
060:            }
061:
062:            /**
063:             * Sets the request object for the wrapper.
064:             *
065:             * @param request the wrapped request
066:             */
067:            public void setRequest(ServletRequest request) {
068:                super .setRequest(request);
069:
070:                this .request = (HttpServletRequest) request;
071:            }
072:
073:            /**
074:             * Returns the HTTP method, e.g. "GET" or "POST"
075:             *
076:             * <p/>Equivalent to CGI's <code>REQUEST_METHOD</code>
077:             */
078:            public String getMethod() {
079:                return request.getMethod();
080:            }
081:
082:            /**
083:             * Returns the entire request URI
084:             */
085:            public String getRequestURI() {
086:                return request.getRequestURI();
087:            }
088:
089:            /**
090:             * Reconstructs the URL the client used for the request.
091:             *
092:             * @since Servlet 2.3
093:             */
094:            public StringBuffer getRequestURL() {
095:                return request.getRequestURL();
096:            }
097:
098:            /**
099:             * Returns the part of the URI corresponding to the application's
100:             * prefix.  The first part of the URI selects applications
101:             * (ServletContexts).
102:             *
103:             * <p><code>getContextPath()</code> is /myapp for the uri
104:             * /myapp/servlet/Hello,
105:             */
106:            public String getContextPath() {
107:                return request.getContextPath();
108:            }
109:
110:            /**
111:             * Returns the URI part corresponding to the selected servlet.
112:             * The URI is relative to the application.
113:             *
114:             * <p/>Corresponds to CGI's <code>SCRIPT_NAME</code>
115:             *
116:             * <code>getServletPath()</code> is /servlet/Hello for the uri
117:             * /myapp/servlet/Hello/foo.
118:             *
119:             * <code>getServletPath()</code> is /dir/hello.jsp
120:             * for the uri /myapp/dir/hello.jsp/foo,
121:             */
122:            public String getServletPath() {
123:                return request.getServletPath();
124:            }
125:
126:            /**
127:             * Returns the URI part after the selected servlet and null if there
128:             * is no suffix.
129:             *
130:             * <p/>Corresponds to CGI's <code>PATH_INFO</code>
131:             *
132:             * <p><code>getPathInfo()</code> is /foo for
133:             * the uri /myapp/servlet/Hello/foo.
134:             *
135:             * <code>getPathInfo()</code> is /hello.jsp for for the uri
136:             * /myapp/dir/hello.jsp/foo.
137:             */
138:            public String getPathInfo() {
139:                return request.getPathInfo();
140:            }
141:
142:            /**
143:             * Returns the physical path name for the path info.
144:             *
145:             * <p/>Corresponds to CGI's <code>PATH_TRANSLATED</code>
146:             *
147:             * @return null if there is no path info.
148:             */
149:            public String getPathTranslated() {
150:                return request.getPathTranslated();
151:            }
152:
153:            /**
154:             * Returns the request's query string.  Form based servlets will use
155:             * <code>ServletRequest.getParameter()</code> to decode the form values.
156:             *
157:             * <p/>Corresponds to CGI's <code>PATH_TRANSLATED</code>
158:             */
159:            public String getQueryString() {
160:                return request.getQueryString();
161:            }
162:
163:            /**
164:             * Returns the first value for a request header.
165:             *
166:             * <p/>Corresponds to CGI's <code>HTTP_*</code>
167:             *
168:             * <code><pre>
169:             * String userAgent = request.getHeader("User-Agent");
170:             * </pre></code>
171:             *
172:             * @param name the header name
173:             * @return the header value
174:             */
175:            public String getHeader(String name) {
176:                return request.getHeader(name);
177:            }
178:
179:            /**
180:             * Returns all the values for a request header.  In some rare cases,
181:             * like cookies, browsers may return multiple headers.
182:             *
183:             * @param name the header name
184:             * @return an enumeration of the header values.
185:             */
186:            public Enumeration getHeaders(String name) {
187:                return request.getHeaders(name);
188:            }
189:
190:            /**
191:             * Returns an enumeration of all headers sent by the client.
192:             */
193:            public Enumeration getHeaderNames() {
194:                return request.getHeaderNames();
195:            }
196:
197:            /**
198:             * Converts a header value to an integer.
199:             *
200:             * @param name the header name
201:             * @return the header value converted to an integer
202:             */
203:            public int getIntHeader(String name) {
204:                return request.getIntHeader(name);
205:            }
206:
207:            /**
208:             * Converts a date header to milliseconds since the epoch.
209:             *
210:             * <pre><code>
211:             * long mod = request.getDateHeader("If-Modified-Since");
212:             * </code></pre>
213:             *
214:             * @param name the header name
215:             * @return the header value converted to an date
216:             */
217:            public long getDateHeader(String name) {
218:                return request.getDateHeader(name);
219:            }
220:
221:            /**
222:             * Returns an array of all cookies sent by the client.
223:             */
224:            public Cookie[] getCookies() {
225:                return request.getCookies();
226:            }
227:
228:            /**
229:             * Returns a session.  If no session exists and create is true, then
230:             * create a new session, otherwise return null.
231:             *
232:             * @param create If true, then create a new session if none exists.
233:             */
234:            public HttpSession getSession(boolean create) {
235:                return request.getSession(create);
236:            }
237:
238:            /**
239:             * Returns the current session, creating one if necessary.
240:             * Sessions are a convenience for keeping user state
241:             * across requests.
242:             */
243:            public HttpSession getSession() {
244:                return getSession(true);
245:            }
246:
247:            /**
248:             * Returns the session id.  Sessions are a convenience for keeping
249:             * user state across requests.
250:             *
251:             * <p/>The session id is the value of the JSESSION cookie.
252:             */
253:            public String getRequestedSessionId() {
254:                return request.getRequestedSessionId();
255:            }
256:
257:            /**
258:             * Returns true if the session is valid.
259:             */
260:            public boolean isRequestedSessionIdValid() {
261:                return request.isRequestedSessionIdValid();
262:            }
263:
264:            /**
265:             * Returns true if the session came from a cookie.
266:             */
267:            public boolean isRequestedSessionIdFromCookie() {
268:                return request.isRequestedSessionIdFromCookie();
269:            }
270:
271:            /**
272:             * Returns true if the session came URL-encoding.
273:             */
274:            public boolean isRequestedSessionIdFromURL() {
275:                return request.isRequestedSessionIdFromURL();
276:            }
277:
278:            /**
279:             * Returns the auth type, e.g. basic.
280:             */
281:            public String getAuthType() {
282:                return request.getAuthType();
283:            }
284:
285:            /**
286:             * Returns the remote user if authenticated.
287:             */
288:            public String getRemoteUser() {
289:                return request.getRemoteUser();
290:            }
291:
292:            /**
293:             * Returns true if the user is in the given role.
294:             */
295:            public boolean isUserInRole(String role) {
296:                return request.isUserInRole(role);
297:            }
298:
299:            /**
300:             * Returns the equivalent principal object for the authenticated user.
301:             */
302:            public Principal getUserPrincipal() {
303:                return request.getUserPrincipal();
304:            }
305:
306:            /**
307:             * @deprecated
308:             */
309:            public boolean isRequestedSessionIdFromUrl() {
310:                return request.isRequestedSessionIdFromUrl();
311:            }
312:        }
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