1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
|
8 | |
|
9 | |
|
10 | |
|
11 | |
|
12 | |
|
13 | |
|
14 | |
|
15 | |
|
16 | |
|
17 | |
package org.apache.commons.configuration; |
18 | |
|
19 | |
import java.io.File; |
20 | |
import java.io.IOException; |
21 | |
import java.io.InputStream; |
22 | |
import java.io.OutputStream; |
23 | |
import java.lang.reflect.Method; |
24 | |
import java.net.MalformedURLException; |
25 | |
import java.net.URL; |
26 | |
import java.net.URLConnection; |
27 | |
import java.net.URLStreamHandler; |
28 | |
import java.util.Map; |
29 | |
|
30 | |
import org.apache.commons.vfs2.FileContent; |
31 | |
import org.apache.commons.vfs2.FileName; |
32 | |
import org.apache.commons.vfs2.FileObject; |
33 | |
import org.apache.commons.vfs2.FileSystemConfigBuilder; |
34 | |
import org.apache.commons.vfs2.FileSystemException; |
35 | |
import org.apache.commons.vfs2.FileSystemManager; |
36 | |
import org.apache.commons.vfs2.FileSystemOptions; |
37 | |
import org.apache.commons.vfs2.FileType; |
38 | |
import org.apache.commons.vfs2.VFS; |
39 | |
import org.apache.commons.vfs2.provider.UriParser; |
40 | |
|
41 | |
|
42 | |
|
43 | |
|
44 | |
|
45 | |
|
46 | |
|
47 | |
|
48 | |
public class VFSFileSystem extends DefaultFileSystem |
49 | |
{ |
50 | |
public VFSFileSystem() |
51 | 60 | { |
52 | 60 | } |
53 | |
|
54 | |
@Override |
55 | |
public InputStream getInputStream(String basePath, String fileName) |
56 | |
throws ConfigurationException |
57 | |
{ |
58 | |
try |
59 | |
{ |
60 | 9 | FileSystemManager manager = VFS.getManager(); |
61 | |
FileName path; |
62 | 9 | if (basePath != null) |
63 | |
{ |
64 | 0 | FileName base = manager.resolveURI(basePath); |
65 | 0 | path = manager.resolveName(base, fileName); |
66 | 0 | } |
67 | |
else |
68 | |
{ |
69 | 9 | FileName file = manager.resolveURI(fileName); |
70 | 9 | FileName base = file.getParent(); |
71 | 9 | path = manager.resolveName(base, file.getBaseName()); |
72 | |
} |
73 | 9 | FileSystemOptions opts = getOptions(path.getScheme()); |
74 | 9 | FileObject file = (opts == null) ? manager.resolveFile(path.getURI()) |
75 | |
: manager.resolveFile(path.getURI(), opts); |
76 | 9 | FileContent content = file.getContent(); |
77 | 9 | if (content == null) |
78 | |
{ |
79 | 0 | String msg = "Cannot access content of " + file.getName().getFriendlyURI(); |
80 | 0 | throw new ConfigurationException(msg); |
81 | |
} |
82 | 9 | return content.getInputStream(); |
83 | |
} |
84 | 0 | catch (ConfigurationException e) |
85 | |
{ |
86 | 0 | throw e; |
87 | |
} |
88 | 0 | catch (Exception e) |
89 | |
{ |
90 | 0 | throw new ConfigurationException("Unable to load the configuration file " + fileName, e); |
91 | |
} |
92 | |
} |
93 | |
|
94 | |
@Override |
95 | |
public InputStream getInputStream(URL url) throws ConfigurationException |
96 | |
{ |
97 | |
FileObject file; |
98 | |
try |
99 | |
{ |
100 | 181 | FileSystemOptions opts = getOptions(url.getProtocol()); |
101 | 181 | file = (opts == null) ? VFS.getManager().resolveFile(url.toString()) |
102 | |
: VFS.getManager().resolveFile(url.toString(), opts); |
103 | 181 | if (file.getType() != FileType.FILE) |
104 | |
{ |
105 | 0 | throw new ConfigurationException("Cannot load a configuration from a directory"); |
106 | |
} |
107 | 181 | FileContent content = file.getContent(); |
108 | 181 | if (content == null) |
109 | |
{ |
110 | 0 | String msg = "Cannot access content of " + file.getName().getFriendlyURI(); |
111 | 0 | throw new ConfigurationException(msg); |
112 | |
} |
113 | 181 | return content.getInputStream(); |
114 | |
} |
115 | 0 | catch (FileSystemException fse) |
116 | |
{ |
117 | 0 | String msg = "Unable to access " + url.toString(); |
118 | 0 | throw new ConfigurationException(msg, fse); |
119 | |
} |
120 | |
} |
121 | |
|
122 | |
@Override |
123 | |
public OutputStream getOutputStream(URL url) throws ConfigurationException |
124 | |
{ |
125 | |
try |
126 | |
{ |
127 | 1 | FileSystemOptions opts = getOptions(url.getProtocol()); |
128 | 1 | FileSystemManager fsManager = VFS.getManager(); |
129 | 1 | FileObject file = (opts == null) ? fsManager.resolveFile(url.toString()) |
130 | |
: fsManager.resolveFile(url.toString(), opts); |
131 | |
|
132 | 1 | if (file == null || file.getType() == FileType.FOLDER) |
133 | |
{ |
134 | 0 | throw new ConfigurationException("Cannot save a configuration to a directory"); |
135 | |
} |
136 | 1 | FileContent content = file.getContent(); |
137 | |
|
138 | 1 | if (content == null) |
139 | |
{ |
140 | 0 | throw new ConfigurationException("Cannot access content of " + url); |
141 | |
} |
142 | 1 | return content.getOutputStream(); |
143 | |
} |
144 | 0 | catch (FileSystemException fse) |
145 | |
{ |
146 | 0 | throw new ConfigurationException("Unable to access " + url, fse); |
147 | |
} |
148 | |
} |
149 | |
|
150 | |
@Override |
151 | |
public String getPath(File file, URL url, String basePath, String fileName) |
152 | |
{ |
153 | 55 | if (file != null) |
154 | |
{ |
155 | 0 | return super.getPath(file, url, basePath, fileName); |
156 | |
} |
157 | |
try |
158 | |
{ |
159 | 55 | FileSystemManager fsManager = VFS.getManager(); |
160 | 55 | if (url != null) |
161 | |
{ |
162 | 47 | FileName name = fsManager.resolveURI(url.toString()); |
163 | 47 | if (name != null) |
164 | |
{ |
165 | 47 | return name.toString(); |
166 | |
} |
167 | |
} |
168 | |
|
169 | 8 | if (UriParser.extractScheme(fileName) != null) |
170 | |
{ |
171 | 0 | return fileName; |
172 | |
} |
173 | 8 | else if (basePath != null) |
174 | |
{ |
175 | 8 | FileName base = fsManager.resolveURI(basePath); |
176 | 8 | return fsManager.resolveName(base, fileName).getURI(); |
177 | |
} |
178 | |
else |
179 | |
{ |
180 | 0 | FileName name = fsManager.resolveURI(fileName); |
181 | 0 | FileName base = name.getParent(); |
182 | 0 | return fsManager.resolveName(base, name.getBaseName()).getURI(); |
183 | |
} |
184 | |
} |
185 | 0 | catch (FileSystemException fse) |
186 | |
{ |
187 | 0 | fse.printStackTrace(); |
188 | 0 | return null; |
189 | |
} |
190 | |
} |
191 | |
|
192 | |
@Override |
193 | |
public String getBasePath(String path) |
194 | |
{ |
195 | 0 | if (UriParser.extractScheme(path) == null) |
196 | |
{ |
197 | 0 | return super.getBasePath(path); |
198 | |
} |
199 | |
try |
200 | |
{ |
201 | 0 | FileSystemManager fsManager = VFS.getManager(); |
202 | 0 | FileName name = fsManager.resolveURI(path); |
203 | 0 | return name.getParent().getURI(); |
204 | |
} |
205 | 0 | catch (FileSystemException fse) |
206 | |
{ |
207 | 0 | fse.printStackTrace(); |
208 | 0 | return null; |
209 | |
} |
210 | |
} |
211 | |
|
212 | |
@Override |
213 | |
public String getFileName(String path) |
214 | |
{ |
215 | 0 | if (UriParser.extractScheme(path) == null) |
216 | |
{ |
217 | 0 | return super.getFileName(path); |
218 | |
} |
219 | |
try |
220 | |
{ |
221 | 0 | FileSystemManager fsManager = VFS.getManager(); |
222 | 0 | FileName name = fsManager.resolveURI(path); |
223 | 0 | return name.getBaseName(); |
224 | |
} |
225 | 0 | catch (FileSystemException fse) |
226 | |
{ |
227 | 0 | fse.printStackTrace(); |
228 | 0 | return null; |
229 | |
} |
230 | |
} |
231 | |
|
232 | |
@Override |
233 | |
public URL getURL(String basePath, String file) throws MalformedURLException |
234 | |
{ |
235 | 0 | if ((basePath != null && UriParser.extractScheme(basePath) == null) |
236 | |
|| (basePath == null && UriParser.extractScheme(file) == null)) |
237 | |
{ |
238 | 0 | return super.getURL(basePath, file); |
239 | |
} |
240 | |
try |
241 | |
{ |
242 | 0 | FileSystemManager fsManager = VFS.getManager(); |
243 | |
|
244 | |
FileName path; |
245 | 0 | if (basePath != null && UriParser.extractScheme(file) == null) |
246 | |
{ |
247 | 0 | FileName base = fsManager.resolveURI(basePath); |
248 | 0 | path = fsManager.resolveName(base, file); |
249 | 0 | } |
250 | |
else |
251 | |
{ |
252 | 0 | path = fsManager.resolveURI(file); |
253 | |
} |
254 | |
|
255 | 0 | URLStreamHandler handler = new VFSURLStreamHandler(path); |
256 | 0 | return new URL(null, path.getURI(), handler); |
257 | |
} |
258 | 0 | catch (FileSystemException fse) |
259 | |
{ |
260 | 0 | throw new ConfigurationRuntimeException("Could not parse basePath: " + basePath |
261 | |
+ " and fileName: " + file, fse); |
262 | |
} |
263 | |
} |
264 | |
|
265 | |
@Override |
266 | |
public URL locateFromURL(String basePath, String fileName) |
267 | |
{ |
268 | 238 | String fileScheme = UriParser.extractScheme(fileName); |
269 | |
|
270 | |
|
271 | 238 | if ((basePath == null || UriParser.extractScheme(basePath) == null) && fileScheme == null) |
272 | |
{ |
273 | 208 | return super.locateFromURL(basePath, fileName); |
274 | |
} |
275 | |
try |
276 | |
{ |
277 | 30 | FileSystemManager fsManager = VFS.getManager(); |
278 | |
|
279 | |
FileObject file; |
280 | |
|
281 | 30 | if (basePath != null && fileScheme == null) |
282 | |
{ |
283 | 27 | String scheme = UriParser.extractScheme(basePath); |
284 | 27 | FileSystemOptions opts = (scheme != null) ? getOptions(scheme) : null; |
285 | 27 | FileObject base = (opts == null) ? fsManager.resolveFile(basePath) |
286 | |
: fsManager.resolveFile(basePath, opts); |
287 | 27 | if (base.getType() == FileType.FILE) |
288 | |
{ |
289 | 12 | base = base.getParent(); |
290 | |
} |
291 | |
|
292 | 27 | file = fsManager.resolveFile(base, fileName); |
293 | 27 | } |
294 | |
else |
295 | |
{ |
296 | 3 | FileSystemOptions opts = (fileScheme != null) ? getOptions(fileScheme) : null; |
297 | 3 | file = (opts == null) ? fsManager.resolveFile(fileName) |
298 | |
: fsManager.resolveFile(fileName, opts); |
299 | |
} |
300 | |
|
301 | 30 | if (!file.exists()) |
302 | |
{ |
303 | 6 | return null; |
304 | |
} |
305 | 24 | FileName path = file.getName(); |
306 | 24 | URLStreamHandler handler = new VFSURLStreamHandler(path); |
307 | 24 | return new URL(null, path.getURI(), handler); |
308 | |
} |
309 | 0 | catch (FileSystemException fse) |
310 | |
{ |
311 | 0 | return null; |
312 | |
} |
313 | 0 | catch (MalformedURLException ex) |
314 | |
{ |
315 | 0 | return null; |
316 | |
} |
317 | |
} |
318 | |
|
319 | |
private FileSystemOptions getOptions(String scheme) |
320 | |
{ |
321 | 221 | FileSystemOptions opts = new FileSystemOptions(); |
322 | |
FileSystemConfigBuilder builder; |
323 | |
try |
324 | |
{ |
325 | 221 | builder = VFS.getManager().getFileSystemConfigBuilder(scheme); |
326 | |
} |
327 | 0 | catch (Exception ex) |
328 | |
{ |
329 | 0 | return null; |
330 | 221 | } |
331 | 221 | FileOptionsProvider provider = getFileOptionsProvider(); |
332 | 221 | if (provider != null) |
333 | |
{ |
334 | 0 | Map<String, Object> map = provider.getOptions(); |
335 | 0 | if (map == null) |
336 | |
{ |
337 | 0 | return null; |
338 | |
} |
339 | 0 | int count = 0; |
340 | 0 | for (Map.Entry<String, Object> entry : map.entrySet()) |
341 | |
{ |
342 | |
try |
343 | |
{ |
344 | 0 | String key = entry.getKey(); |
345 | 0 | if (FileOptionsProvider.CURRENT_USER.equals(key)) |
346 | |
{ |
347 | 0 | key = "creatorName"; |
348 | |
} |
349 | 0 | setProperty(builder, opts, key, entry.getValue()); |
350 | 0 | ++count; |
351 | |
} |
352 | 0 | catch (Exception ex) |
353 | |
{ |
354 | |
|
355 | 0 | continue; |
356 | 0 | } |
357 | |
} |
358 | 0 | if (count > 0) |
359 | |
{ |
360 | 0 | return opts; |
361 | |
} |
362 | |
} |
363 | 221 | return null; |
364 | |
|
365 | |
} |
366 | |
|
367 | |
private void setProperty(FileSystemConfigBuilder builder, FileSystemOptions options, |
368 | |
String key, Object value) |
369 | |
{ |
370 | 0 | String methodName = "set" + key.substring(0, 1).toUpperCase() + key.substring(1); |
371 | 0 | Class<?>[] paramTypes = new Class<?>[2]; |
372 | 0 | paramTypes[0] = FileSystemOptions.class; |
373 | 0 | paramTypes[1] = value.getClass(); |
374 | |
|
375 | |
try |
376 | |
{ |
377 | 0 | Method method = builder.getClass().getMethod(methodName, paramTypes); |
378 | 0 | Object[] params = new Object[2]; |
379 | 0 | params[0] = options; |
380 | 0 | params[1] = value; |
381 | 0 | method.invoke(builder, params); |
382 | |
} |
383 | 0 | catch (Exception ex) |
384 | |
{ |
385 | 0 | return; |
386 | 0 | } |
387 | |
|
388 | 0 | } |
389 | |
|
390 | |
|
391 | |
|
392 | |
|
393 | |
private static class VFSURLStreamHandler extends URLStreamHandler |
394 | |
{ |
395 | |
|
396 | |
private final String protocol; |
397 | |
|
398 | |
public VFSURLStreamHandler(FileName file) |
399 | 24 | { |
400 | 24 | this.protocol = file.getScheme(); |
401 | 24 | } |
402 | |
|
403 | |
@Override |
404 | |
protected URLConnection openConnection(URL url) throws IOException |
405 | |
{ |
406 | 0 | throw new IOException("VFS URLs can only be used with VFS APIs"); |
407 | |
} |
408 | |
} |
409 | |
} |