|
1
16
17 package org.apache.taglibs.standard.lang.jstl.test;
18
19 import java.util.Collections  ;
20 import java.util.Enumeration ;
21 import java.util.HashMap ;
22 import java.util.Map ;
23
24 import javax.servlet.Servlet ;
25 import javax.servlet.ServletConfig ;
26 import javax.servlet.ServletContext ;
27 import javax.servlet.ServletRequest ;
28 import javax.servlet.ServletResponse ;
29 import javax.servlet.http.HttpSession ;
30 import javax.servlet.jsp.JspWriter ;
31 import javax.servlet.jsp.PageContext ;
32 import javax.servlet.jsp.el.ExpressionEvaluator ;
33 import javax.servlet.jsp.el.VariableResolver ;
34
35
43
44 public class PageContextImpl
45 extends PageContext
46 {
47
51
55 Map mPage = Collections.synchronizedMap (new HashMap ());
56 Map mRequest = Collections.synchronizedMap (new HashMap ());
57 Map mSession = Collections.synchronizedMap (new HashMap ());
58 Map mApp = Collections.synchronizedMap (new HashMap ());
59
60
65 public PageContextImpl ()
66 {
67 }
68
69 public void initialize (Servlet servlet,
73 ServletRequest request,
74 ServletResponse response,
75 String errorPageURL,
76 boolean needSession,
77 int bufferSize,
78 boolean autoFlush)
79 {
80 }
81
82 public void release ()
84 {
85 }
86
87 public void setAttribute (String name,
89 Object attribute)
90 {
91 mPage.put (name, attribute);
92 }
93
94 public void setAttribute (String name,
96 Object attribute,
97 int scope)
98 {
99 switch (scope) {
100 case PAGE_SCOPE:
101 mPage.put (name, attribute);
102 break;
103 case REQUEST_SCOPE:
104 mRequest.put (name, attribute);
105 break;
106 case SESSION_SCOPE:
107 mSession.put (name, attribute);
108 break;
109 case APPLICATION_SCOPE:
110 mApp.put (name, attribute);
111 break;
112 default:
113 throw new IllegalArgumentException ("Bad scope " + scope);
114 }
115 }
116
117 public Object getAttribute (String name)
119 {
120 return mPage.get (name);
121 }
122
123 public Object getAttribute (String name,
125 int scope)
126 {
127 switch (scope) {
128 case PAGE_SCOPE:
129 return mPage.get (name);
130 case REQUEST_SCOPE:
131 return mRequest.get (name);
132 case SESSION_SCOPE:
133 return mSession.get (name);
134 case APPLICATION_SCOPE:
135 return mApp.get (name);
136 default:
137 throw new IllegalArgumentException ("Bad scope " + scope);
138 }
139 }
140
141 public Object findAttribute (String name)
143 {
144 if (mPage.containsKey (name)) {
145 return mPage.get (name);
146 }
147 else if (mRequest.containsKey (name)) {
148 return mRequest.get (name);
149 }
150 else if (mSession.containsKey (name)) {
151 return mSession.get (name);
152 }
153 else if (mApp.containsKey (name)) {
154 return mApp.get (name);
155 }
156 else {
157 return null;
158 }
159 }
160
161 public void removeAttribute (String name)
163 {
164 if (mPage.containsKey (name)) {
165 mPage.remove (name);
166 }
167 else if (mRequest.containsKey (name)) {
168 mRequest.remove (name);
169 }
170 else if (mSession.containsKey (name)) {
171 mSession.remove (name);
172 }
173 else if (mApp.containsKey (name)) {
174 mApp.remove (name);
175 }
176 }
177
178 public void removeAttribute (String name,
180 int scope)
181 {
182 switch (scope) {
183 case PAGE_SCOPE:
184 mPage.remove (name);
185 break;
186 case REQUEST_SCOPE:
187 mRequest.remove (name);
188 break;
189 case SESSION_SCOPE:
190 mSession.remove (name);
191 break;
192 case APPLICATION_SCOPE:
193 mApp.remove (name);
194 break;
195 default:
196 throw new IllegalArgumentException ("Bad scope " + scope);
197 }
198 }
199
200 public int getAttributesScope (String name)
202 {
203 if (mPage.containsKey (name)) {
204 return PAGE_SCOPE;
205 }
206 else if (mRequest.containsKey (name)) {
207 return REQUEST_SCOPE;
208 }
209 else if (mSession.containsKey (name)) {
210 return SESSION_SCOPE;
211 }
212 else if (mApp.containsKey (name)) {
213 return APPLICATION_SCOPE;
214 }
215 else {
216 return 0;
217 }
218 }
219
220 public Enumeration getAttributeNamesInScope (int scope)
222 {
223 return null;
224 }
225
226 public JspWriter getOut ()
228 {
229 return null;
230 }
231
232 public HttpSession getSession ()
234 {
235 return null;
236 }
237
238 public Object getPage ()
240 {
241 return null;
242 }
243
244 public ServletRequest getRequest ()
246 {
247 return null;
248 }
249
250 public ServletResponse getResponse ()
252 {
253 return null;
254 }
255
256 public Exception getException ()
258 {
259 return null;
260 }
261
262 public ServletConfig getServletConfig ()
264 {
265 return null;
266 }
267
268 public ServletContext getServletContext ()
270 {
271 return null;
272 }
273
274 public void forward (String path)
276 {
277 }
278
279 public void include (String path)
281 {
282 }
283
284 public void handlePageException (Exception exc)
286 {
287 }
288
289 public void handlePageException (Throwable exc)
291 {
292 }
293
294
296 public void include(java.lang.String relativeUrlPath, boolean flush) {}
298 public ExpressionEvaluator getExpressionEvaluator() { return null; }
299 public VariableResolver getVariableResolver() { return null; }
300
301 }
302 |
Popular Tags |
Java API By Example, From Geeks To Geeks.