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package org.apache.commons.configuration; |
18 | |
|
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import java.io.File; |
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import java.io.FileNotFoundException; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import java.net.HttpURLConnection; |
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import java.net.MalformedURLException; |
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import java.net.URL; |
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import java.net.URLConnection; |
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|
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import org.apache.commons.logging.Log; |
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import org.apache.commons.logging.LogFactory; |
32 | |
|
33 | |
|
34 | |
|
35 | |
|
36 | |
|
37 | |
|
38 | |
|
39 | 119 | public class DefaultFileSystem extends FileSystem |
40 | |
{ |
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|
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|
43 | |
|
44 | 119 | private Log log = LogFactory.getLog(DefaultFileSystem.class); |
45 | |
|
46 | |
@Override |
47 | |
public InputStream getInputStream(String basePath, String fileName) |
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throws ConfigurationException |
49 | |
{ |
50 | |
try |
51 | |
{ |
52 | 1358 | URL url = ConfigurationUtils.locate(this, basePath, fileName); |
53 | |
|
54 | 1358 | if (url == null) |
55 | |
{ |
56 | 0 | throw new ConfigurationException("Cannot locate configuration source " + fileName); |
57 | |
} |
58 | 1358 | return getInputStream(url); |
59 | |
} |
60 | 0 | catch (ConfigurationException e) |
61 | |
{ |
62 | 0 | throw e; |
63 | |
} |
64 | 0 | catch (Exception e) |
65 | |
{ |
66 | 0 | throw new ConfigurationException("Unable to load the configuration file " + fileName, e); |
67 | |
} |
68 | |
} |
69 | |
|
70 | |
@Override |
71 | |
public InputStream getInputStream(URL url) throws ConfigurationException |
72 | |
{ |
73 | |
|
74 | 21042 | File file = ConfigurationUtils.fileFromURL(url); |
75 | 21042 | if (file != null && file.isDirectory()) |
76 | |
{ |
77 | 4 | throw new ConfigurationException("Cannot load a configuration from a directory"); |
78 | |
} |
79 | |
|
80 | |
try |
81 | |
{ |
82 | 21038 | return url.openStream(); |
83 | |
} |
84 | 1 | catch (Exception e) |
85 | |
{ |
86 | 1 | throw new ConfigurationException("Unable to load the configuration from the URL " + url, e); |
87 | |
} |
88 | |
} |
89 | |
|
90 | |
@Override |
91 | |
public OutputStream getOutputStream(URL url) throws ConfigurationException |
92 | |
{ |
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|
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|
95 | 77 | File file = ConfigurationUtils.fileFromURL(url); |
96 | 77 | if (file != null) |
97 | |
{ |
98 | 72 | return getOutputStream(file); |
99 | |
} |
100 | |
else |
101 | |
{ |
102 | |
|
103 | |
OutputStream out; |
104 | |
try |
105 | |
{ |
106 | 5 | URLConnection connection = url.openConnection(); |
107 | 5 | connection.setDoOutput(true); |
108 | |
|
109 | |
|
110 | 5 | if (connection instanceof HttpURLConnection) |
111 | |
{ |
112 | 4 | HttpURLConnection conn = (HttpURLConnection) connection; |
113 | 4 | conn.setRequestMethod("PUT"); |
114 | |
} |
115 | |
|
116 | 5 | out = connection.getOutputStream(); |
117 | |
|
118 | |
|
119 | 5 | if (connection instanceof HttpURLConnection) |
120 | |
{ |
121 | 4 | out = new HttpOutputStream(out, (HttpURLConnection) connection); |
122 | |
} |
123 | 5 | return out; |
124 | |
} |
125 | 0 | catch (IOException e) |
126 | |
{ |
127 | 0 | throw new ConfigurationException("Could not save to URL " + url, e); |
128 | |
} |
129 | |
} |
130 | |
} |
131 | |
|
132 | |
@Override |
133 | |
public OutputStream getOutputStream(File file) throws ConfigurationException |
134 | |
{ |
135 | |
try |
136 | |
{ |
137 | |
|
138 | 117 | createPath(file); |
139 | 117 | return new FileOutputStream(file); |
140 | |
} |
141 | 0 | catch (FileNotFoundException e) |
142 | |
{ |
143 | 0 | throw new ConfigurationException("Unable to save to file " + file, e); |
144 | |
} |
145 | |
} |
146 | |
|
147 | |
@Override |
148 | |
public String getPath(File file, URL url, String basePath, String fileName) |
149 | |
{ |
150 | 5 | String path = null; |
151 | |
|
152 | 5 | if (file != null) |
153 | |
{ |
154 | 2 | path = file.getAbsolutePath(); |
155 | |
} |
156 | |
|
157 | |
|
158 | 5 | if (path == null) |
159 | |
{ |
160 | 3 | if (url != null) |
161 | |
{ |
162 | 3 | path = url.getPath(); |
163 | |
} |
164 | |
else |
165 | |
{ |
166 | |
try |
167 | |
{ |
168 | 0 | path = getURL(basePath, fileName).getPath(); |
169 | |
} |
170 | 0 | catch (Exception e) |
171 | |
{ |
172 | |
|
173 | 0 | if (log.isDebugEnabled()) |
174 | |
{ |
175 | 0 | log.debug(String.format("Could not determine URL for " |
176 | |
+ "basePath = %s, fileName = %s.", basePath, |
177 | |
fileName), e); |
178 | |
} |
179 | 0 | } |
180 | |
} |
181 | |
} |
182 | |
|
183 | 5 | return path; |
184 | |
} |
185 | |
|
186 | |
@Override |
187 | |
public String getBasePath(String path) |
188 | |
{ |
189 | |
URL url; |
190 | |
try |
191 | |
{ |
192 | 0 | url = getURL(null, path); |
193 | 0 | return ConfigurationUtils.getBasePath(url); |
194 | |
} |
195 | 0 | catch (Exception e) |
196 | |
{ |
197 | 0 | return null; |
198 | |
} |
199 | |
} |
200 | |
|
201 | |
@Override |
202 | |
public String getFileName(String path) |
203 | |
{ |
204 | |
URL url; |
205 | |
try |
206 | |
{ |
207 | 0 | url = getURL(null, path); |
208 | 0 | return ConfigurationUtils.getFileName(url); |
209 | |
} |
210 | 0 | catch (Exception e) |
211 | |
{ |
212 | 0 | return null; |
213 | |
} |
214 | |
} |
215 | |
|
216 | |
|
217 | |
@Override |
218 | |
public URL getURL(String basePath, String file) throws MalformedURLException |
219 | |
{ |
220 | 51 | File f = new File(file); |
221 | 51 | if (f.isAbsolute()) |
222 | |
{ |
223 | 12 | return ConfigurationUtils.toURL(f); |
224 | |
} |
225 | |
|
226 | |
try |
227 | |
{ |
228 | 39 | if (basePath == null) |
229 | |
{ |
230 | 7 | return new URL(file); |
231 | |
} |
232 | |
else |
233 | |
{ |
234 | 32 | URL base = new URL(basePath); |
235 | 4 | return new URL(base, file); |
236 | |
} |
237 | |
} |
238 | 33 | catch (MalformedURLException uex) |
239 | |
{ |
240 | 33 | return ConfigurationUtils.toURL(ConfigurationUtils.constructFile(basePath, file)); |
241 | |
} |
242 | |
} |
243 | |
|
244 | |
|
245 | |
@Override |
246 | |
public URL locateFromURL(String basePath, String fileName) |
247 | |
{ |
248 | |
try |
249 | |
{ |
250 | |
URL url; |
251 | 7063 | if (basePath == null) |
252 | |
{ |
253 | 1740 | return new URL(fileName); |
254 | |
|
255 | |
} |
256 | |
else |
257 | |
{ |
258 | 5323 | URL baseURL = new URL(basePath); |
259 | 4284 | url = new URL(baseURL, fileName); |
260 | |
|
261 | |
|
262 | 4282 | InputStream in = null; |
263 | |
try |
264 | |
{ |
265 | 4282 | in = url.openStream(); |
266 | |
} |
267 | |
finally |
268 | |
{ |
269 | 4282 | if (in != null) |
270 | |
{ |
271 | 4258 | in.close(); |
272 | |
} |
273 | |
} |
274 | 4258 | return url; |
275 | |
} |
276 | |
} |
277 | 1447 | catch (IOException e) |
278 | |
{ |
279 | 1447 | if (log.isDebugEnabled()) |
280 | |
{ |
281 | 0 | log.debug("Could not locate file " + fileName + " at " + basePath + ": " + e.getMessage()); |
282 | |
} |
283 | 1447 | return null; |
284 | |
} |
285 | |
} |
286 | |
|
287 | |
|
288 | |
|
289 | |
|
290 | |
|
291 | |
|
292 | |
private void createPath(File file) |
293 | |
{ |
294 | 117 | if (file != null) |
295 | |
{ |
296 | |
|
297 | 117 | if (!file.exists()) |
298 | |
{ |
299 | 59 | File parent = file.getParentFile(); |
300 | 59 | if (parent != null && !parent.exists()) |
301 | |
{ |
302 | 3 | parent.mkdirs(); |
303 | |
} |
304 | |
} |
305 | |
} |
306 | 117 | } |
307 | |
|
308 | |
|
309 | |
|
310 | |
|
311 | |
|
312 | |
|
313 | 119 | private static class HttpOutputStream extends VerifiableOutputStream |
314 | |
{ |
315 | |
|
316 | |
private final OutputStream stream; |
317 | |
|
318 | |
|
319 | |
private final HttpURLConnection connection; |
320 | |
|
321 | |
public HttpOutputStream(OutputStream stream, HttpURLConnection connection) |
322 | 4 | { |
323 | 4 | this.stream = stream; |
324 | 4 | this.connection = connection; |
325 | 4 | } |
326 | |
|
327 | |
@Override |
328 | |
public void write(byte[] bytes) throws IOException |
329 | |
{ |
330 | 0 | stream.write(bytes); |
331 | 0 | } |
332 | |
|
333 | |
@Override |
334 | |
public void write(byte[] bytes, int i, int i1) throws IOException |
335 | |
{ |
336 | 2 | stream.write(bytes, i, i1); |
337 | 2 | } |
338 | |
|
339 | |
@Override |
340 | |
public void flush() throws IOException |
341 | |
{ |
342 | 4 | stream.flush(); |
343 | 4 | } |
344 | |
|
345 | |
@Override |
346 | |
public void close() throws IOException |
347 | |
{ |
348 | 4 | stream.close(); |
349 | 4 | } |
350 | |
|
351 | |
@Override |
352 | |
public void write(int i) throws IOException |
353 | |
{ |
354 | 0 | stream.write(i); |
355 | 0 | } |
356 | |
|
357 | |
@Override |
358 | |
public String toString() |
359 | |
{ |
360 | 0 | return stream.toString(); |
361 | |
} |
362 | |
|
363 | |
@Override |
364 | |
public void verify() throws IOException |
365 | |
{ |
366 | 4 | if (connection.getResponseCode() >= HttpURLConnection.HTTP_BAD_REQUEST) |
367 | |
{ |
368 | 3 | throw new IOException("HTTP Error " + connection.getResponseCode() |
369 | |
+ " " + connection.getResponseMessage()); |
370 | |
} |
371 | 1 | } |
372 | |
} |
373 | |
} |