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1
5 package com.opensymphony.webwork.dispatcher.multipart;
6
7 import com.opensymphony.webwork.config.Configuration;
8 import org.apache.commons.logging.Log;
9 import org.apache.commons.logging.LogFactory;
10
11 import javax.servlet.http.HttpServletRequest  ;
12 import java.io.File ;
13 import java.lang.reflect.Constructor ;
14 import java.lang.reflect.InvocationTargetException ;
15 import java.util.*;
16
17
18
36 public class MultiPartRequestWrapper extends WebWorkRequestWrapper {
37 protected static final Log log = LogFactory.getLog(MultiPartRequestWrapper.class);
38
39 Collection errors;
40 MultiPartRequest multi;
41
42
49 public MultiPartRequestWrapper(HttpServletRequest request, String saveDir, int maxSize) {
50 super(request);
51
52 if (request instanceof MultiPartRequest) {
53 multi = (MultiPartRequest) request;
54 } else {
55 String parser = Configuration.getString("webwork.multipart.parser");
56
57 if (parser.equals("")) {
59 log.warn("Property webwork.multipart.parser not set." +
60 " Using com.opensymphony.webwork.dispatcher.multipart.PellMultiPartRequest");
61 parser = "com.opensymphony.webwork.dispatcher.multipart.PellMultiPartRequest";
62 }
63 else if (parser.equals("pell")) {
65 parser = "com.opensymphony.webwork.dispatcher.multipart.PellMultiPartRequest";
66 } else if (parser.equals("cos")) {
67 parser = "com.opensymphony.webwork.dispatcher.multipart.CosMultiPartRequest";
68 } else if (parser.equals("jakarta")) {
69 parser = "com.opensymphony.webwork.dispatcher.multipart.JakartaMultiPartRequest";
70 }
71
72 try {
73 Class baseClazz = com.opensymphony.webwork.dispatcher.multipart.MultiPartRequest.class;
74
75 Class clazz = Class.forName(parser);
76
77 if (!baseClazz.isAssignableFrom(clazz)) {
79 addError("Class '" + parser + "' does not extend MultiPartRequest");
80
81 return;
82 }
83
84 Constructor ctor = clazz.getDeclaredConstructor(new Class []{
86 Class.forName("javax.servlet.http.HttpServletRequest"),
87 java.lang.String .class, int.class
88 });
89
90 Object [] parms = new Object []{
92 request, saveDir, new Integer (maxSize)
93 };
94
95 multi = (MultiPartRequest) ctor.newInstance(parms);
97 for (Iterator iter = multi.getErrors().iterator(); iter.hasNext();) {
98 String error = (String ) iter.next();
99 addError(error);
100 }
101 } catch (ClassNotFoundException e) {
102 addError("Class: " + parser + " not found.");
103 } catch (NoSuchMethodException e) {
104 addError("Constructor error for " + parser + ": " + e);
105 } catch (InstantiationException e) {
106 addError("Error instantiating " + parser + ": " + e);
107 } catch (IllegalAccessException e) {
108 addError("Access errror for " + parser + ": " + e);
109 } catch (InvocationTargetException e) {
110 addError(e.getTargetException().toString());
112 }
113 }
114 }
115
116
119 public Enumeration getFileNames() {
120 return getFileParameterNames();
121 }
122
123
128 public Enumeration getFileParameterNames() {
129 if (multi == null) {
130 return null;
131 }
132
133 return multi.getFileParameterNames();
134 }
135
136
139 public String getContentType(String fieldName) {
140 String [] contentTypes = getContentTypes(fieldName);
141 if (contentTypes != null && contentTypes.length > 0) {
142 return contentTypes[0];
143 }
144
145 return null;
146 }
147
148
149
156 public String [] getContentTypes(String name) {
157 if (multi == null) {
158 return null;
159 }
160
161 return multi.getContentType(name);
162 }
163
164
167 public File getFile(String fieldName) {
168 File [] files = getFiles(fieldName);
169 if (files != null && files.length > 0) {
170 return files[0];
171 }
172
173 return null;
174 }
175
176
182 public File [] getFiles(String fieldName) {
183 if (multi == null) {
184 return null;
185 }
186
187 return multi.getFile(fieldName);
188 }
189
190
195 public String [] getFileNames(String fieldName) {
196 if (multi == null) {
197 return null;
198 }
199
200 return multi.getFileNames(fieldName);
201 }
202
203
206 public String getFilesystemName(String fieldName) {
207 String [] names = getFileSystemNames(fieldName);
208 if (names != null && names.length > 0) {
209 return names[0];
210 }
211
212 return null;
213 }
214
215
223 public String [] getFileSystemNames(String fieldName) {
224 if (multi == null) {
225 return null;
226 }
227
228 return multi.getFilesystemName(fieldName);
229 }
230
231
234 public String getParameter(String name) {
235 return ((multi == null) || (multi.getParameter(name) == null)) ? super.getParameter(name) : multi.getParameter(name);
236 }
237
238
241 public Map getParameterMap() {
242 Map map = new HashMap();
243 Enumeration enumeration = getParameterNames();
244
245 while (enumeration.hasMoreElements()) {
246 String name = (String ) enumeration.nextElement();
247 map.put(name, this.getParameterValues(name));
248 }
249
250 return map;
251 }
252
253
256 public Enumeration getParameterNames() {
257 if (multi == null) {
258 return super.getParameterNames();
259 } else {
260 return mergeParams(multi.getParameterNames(), super.getParameterNames());
261 }
262 }
263
264
267 public String [] getParameterValues(String name) {
268 return ((multi == null) || (multi.getParameterValues(name) == null)) ? super.getParameterValues(name) : multi.getParameterValues(name);
269 }
270
271
276 public boolean hasErrors() {
277 if ((errors == null) || errors.isEmpty()) {
278 return false;
279 } else {
280 return true;
281 }
282 }
283
284
289 public Collection getErrors() {
290 return errors;
291 }
292
293
298 protected void addError(String anErrorMessage) {
299 if (errors == null) {
300 errors = new ArrayList();
301 }
302
303 errors.add(anErrorMessage);
304 }
305
306
313 protected Enumeration mergeParams(Enumeration params1, Enumeration params2) {
314 Vector temp = new Vector();
315
316 while (params1.hasMoreElements()) {
317 temp.add(params1.nextElement());
318 }
319
320 while (params2.hasMoreElements()) {
321 temp.add(params2.nextElement());
322 }
323
324 return temp.elements();
325 }
326 }
327 |
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