1 | package vnsim.gui; |
---|
2 | |
---|
3 | import java.io.File; |
---|
4 | import java.io.FileInputStream; |
---|
5 | import java.io.FileOutputStream; |
---|
6 | import java.io.IOException; |
---|
7 | import java.io.InputStream; |
---|
8 | import java.io.OutputStream; |
---|
9 | import java.lang.reflect.Method; |
---|
10 | import java.net.URL; |
---|
11 | import java.net.URLClassLoader; |
---|
12 | import java.net.URLConnection; |
---|
13 | import java.util.ArrayList; |
---|
14 | import java.util.Enumeration; |
---|
15 | import java.util.List; |
---|
16 | import java.util.Vector; |
---|
17 | import java.util.jar.JarEntry; |
---|
18 | import java.util.jar.JarFile; |
---|
19 | |
---|
20 | import javax.swing.JFileChooser; |
---|
21 | import javax.swing.filechooser.FileSystemView; |
---|
22 | |
---|
23 | import sun.misc.URLClassPath; |
---|
24 | |
---|
25 | import com.sun.javaws.jnl.JARDesc; |
---|
26 | import com.sun.javaws.jnl.LaunchDesc; |
---|
27 | import com.sun.javaws.jnl.ResourcesDesc; |
---|
28 | import com.sun.jnlp.JNLPClassLoader; |
---|
29 | |
---|
30 | |
---|
31 | /** |
---|
32 | * An utility class with several methods that are used throughout the GUI classes |
---|
33 | * @author cipsm |
---|
34 | * |
---|
35 | */ |
---|
36 | public class Utils { |
---|
37 | |
---|
38 | private static final Utils _instance = new Utils(); |
---|
39 | |
---|
40 | public static Utils getInstance() { |
---|
41 | return _instance; |
---|
42 | } |
---|
43 | |
---|
44 | private Utils() { } |
---|
45 | |
---|
46 | public FileSystemView getSystemView(String root) { |
---|
47 | return new ClassSystemView(root); |
---|
48 | } |
---|
49 | |
---|
50 | /** A FileSystemView implementation that is used to display the classes loaded by the GUI used ClassLoader.. */ |
---|
51 | public static class ClassSystemView extends FileSystemView { |
---|
52 | |
---|
53 | private String root; |
---|
54 | private SystemViewHandler handler = null; |
---|
55 | |
---|
56 | public ClassSystemView(String root) { |
---|
57 | this.root = root; |
---|
58 | System.out.println(root); |
---|
59 | // init the context |
---|
60 | try { |
---|
61 | Method m = ClassLoader.class.getDeclaredMethod("getBootstrapClassPath", new Class[0]); |
---|
62 | m.setAccessible(true); |
---|
63 | URLClassPath p = (URLClassPath)m.invoke(getClass().getClassLoader(), new Object[0]); |
---|
64 | URL u[] = p.getURLs(); |
---|
65 | for (int i=0; i<u.length; i++) { |
---|
66 | String path = u[i].toString(); |
---|
67 | if (path.startsWith("file://")) |
---|
68 | path = path.substring(7); |
---|
69 | else if (path.startsWith("file:/")) |
---|
70 | path = path.substring(6); |
---|
71 | if(File.separatorChar == '\\') { |
---|
72 | path = path.replace("/", "\\"); |
---|
73 | } |
---|
74 | path = path.replace("%20", " ").trim(); // for compatibility of space with the FS |
---|
75 | if (path.endsWith(".jar")) { |
---|
76 | // System.out.println(path); |
---|
77 | JarHandler h = new JarHandler(path); |
---|
78 | final File ff[] = h.listResources(root); |
---|
79 | if (ff != null && ff.length != 0) { |
---|
80 | handler = h; |
---|
81 | break; |
---|
82 | } |
---|
83 | } else { |
---|
84 | FileHandler h = new FileHandler(path); |
---|
85 | final File ff[] = h.listResources(root); |
---|
86 | if (ff != null && ff.length != 0) { |
---|
87 | handler = h; |
---|
88 | break; |
---|
89 | } |
---|
90 | } |
---|
91 | } |
---|
92 | if (handler == null) { |
---|
93 | String classpath = System.getProperty("java.class.path"); |
---|
94 | // System.out.println("classpath="+classpath); |
---|
95 | |
---|
96 | if (classpath != null) { |
---|
97 | String pp[] = null; |
---|
98 | if (File.separatorChar == '\\') |
---|
99 | pp = classpath.split(";"); |
---|
100 | else |
---|
101 | pp = classpath.split(":"); |
---|
102 | if (pp != null && pp.length != 0) { |
---|
103 | for (int i=0; i<pp.length; i++) { |
---|
104 | String path = pp[i]; |
---|
105 | if (path.startsWith("file://")) |
---|
106 | path = path.substring(7); |
---|
107 | else if (path.startsWith("file:/")) |
---|
108 | path = path.substring(6); |
---|
109 | path = path.replace("%20", " "); // for compatibility of space with the FS |
---|
110 | if (path.endsWith(".jar")) { |
---|
111 | // System.out.println(path); |
---|
112 | JarHandler h = new JarHandler(path); |
---|
113 | final File ff[] = h.listResources(root); |
---|
114 | if (ff != null && ff.length != 0) { |
---|
115 | handler = h; |
---|
116 | break; |
---|
117 | } |
---|
118 | } else { |
---|
119 | FileHandler h = new FileHandler(path); |
---|
120 | final File ff[] = h.listResources(root); |
---|
121 | if (ff != null && ff.length != 0) { |
---|
122 | handler = h; |
---|
123 | break; |
---|
124 | } |
---|
125 | } |
---|
126 | } |
---|
127 | } |
---|
128 | } |
---|
129 | } |
---|
130 | if (handler == null) { // still ? |
---|
131 | ClassLoader l = getClass().getClassLoader(); |
---|
132 | // System.out.println("am intrat aici "+l); |
---|
133 | if (l instanceof URLClassLoader) { |
---|
134 | URLClassLoader lc = (URLClassLoader)l; |
---|
135 | u = lc.getURLs(); |
---|
136 | // System.out.println(u.length); |
---|
137 | for (int i=0; i<u.length; i++) { |
---|
138 | String path = u[i].toString(); |
---|
139 | // System.out.println(path); |
---|
140 | if (path.startsWith("file://")) |
---|
141 | path = path.substring(7); |
---|
142 | else if (path.startsWith("file:/")) |
---|
143 | path = path.substring(6); |
---|
144 | if(File.separatorChar == '\\') { |
---|
145 | path = path.replace("/", "\\"); |
---|
146 | } |
---|
147 | path = path.replace("%20", " ").trim(); // for compatibility of space with the FS |
---|
148 | if (path.endsWith(".jar")) { |
---|
149 | // System.out.println(path); |
---|
150 | JarHandler h = new JarHandler(path); |
---|
151 | final File ff[] = h.listResources(root); |
---|
152 | if (ff != null && ff.length != 0) { |
---|
153 | handler = h; |
---|
154 | break; |
---|
155 | } |
---|
156 | } else { |
---|
157 | FileHandler h = new FileHandler(path); |
---|
158 | final File ff[] = h.listResources(root); |
---|
159 | if (ff != null && ff.length != 0) { |
---|
160 | handler = h; |
---|
161 | break; |
---|
162 | } |
---|
163 | } |
---|
164 | } |
---|
165 | } else { |
---|
166 | try { |
---|
167 | if (l instanceof JNLPClassLoader) { |
---|
168 | JNLPClassLoader jl = (JNLPClassLoader)l; |
---|
169 | LaunchDesc ld = jl.getLaunchDesc(); |
---|
170 | final List<JARDesc> jarDescs = new ArrayList<JARDesc>(); |
---|
171 | ResourcesDesc rd = ld.getResources(); |
---|
172 | if (rd != null) { |
---|
173 | JARDesc[] jars = rd.getEagerOrAllJarDescs(true); |
---|
174 | for (int i = 0; i < jars.length; i++) |
---|
175 | if (jars[i].isJavaFile() && !jars[i].isNativeLib()) |
---|
176 | jarDescs.add(jars[i]); |
---|
177 | } |
---|
178 | for (JARDesc jd : jarDescs) { |
---|
179 | URL location = jd.getLocation(); |
---|
180 | if (!location.getFile().endsWith("maps.jar")) continue; |
---|
181 | // download it ? |
---|
182 | File dirToDownload = new File(System.getProperty("user.home")+File.separatorChar+"maps"); |
---|
183 | if (!dirToDownload.exists()) { |
---|
184 | dirToDownload.mkdirs(); |
---|
185 | } |
---|
186 | String path = System.getProperty("user.home")+File.separatorChar+"maps"+File.separatorChar+"maps.jar"; |
---|
187 | File tmp = new File(path); |
---|
188 | InputStream isDown; |
---|
189 | URLConnection connection = location.openConnection(); |
---|
190 | //write from web to local file |
---|
191 | FileOutputStream fOS = new FileOutputStream(tmp); |
---|
192 | isDown = connection.getInputStream(); |
---|
193 | int nBufferSize = 1024; |
---|
194 | byte buff[] = new byte[nBufferSize]; |
---|
195 | int nRead = -1; |
---|
196 | do { |
---|
197 | nRead = isDown.read(buff); |
---|
198 | if ( nRead > 0 ) { |
---|
199 | fOS.write(buff, 0, nRead); |
---|
200 | } |
---|
201 | } while ( nRead > 0 ); |
---|
202 | fOS.flush(); |
---|
203 | fOS.close(); |
---|
204 | isDown.close(); |
---|
205 | // System.out.println(path); |
---|
206 | JarHandler h = new JarHandler(path); |
---|
207 | final File ff[] = h.listResources(root); |
---|
208 | if (ff != null && ff.length != 0) { |
---|
209 | handler = h; |
---|
210 | break; |
---|
211 | } |
---|
212 | } |
---|
213 | } |
---|
214 | } catch (Throwable t1) { |
---|
215 | // can happen due to different versions of JavaWS |
---|
216 | } |
---|
217 | if (handler == null) { |
---|
218 | FileHandler h = new FileHandler("."); |
---|
219 | if (h.listResources(root) != null) |
---|
220 | handler = h; |
---|
221 | } |
---|
222 | } |
---|
223 | } |
---|
224 | if (handler == null) { |
---|
225 | FileHandler h = new FileHandler("."); |
---|
226 | if (h.listResources(root) != null) |
---|
227 | handler = h; |
---|
228 | } |
---|
229 | } catch (Throwable t) { |
---|
230 | t.printStackTrace(); |
---|
231 | } |
---|
232 | } |
---|
233 | |
---|
234 | public File[] getRoots() { |
---|
235 | if (handler == null) |
---|
236 | return null; |
---|
237 | return new File[] { new CustomFile(root, true) }; |
---|
238 | } |
---|
239 | |
---|
240 | public boolean isRoot(File f) { |
---|
241 | if (f == null) return false; |
---|
242 | return f.getName().equals(root); |
---|
243 | } |
---|
244 | |
---|
245 | public File[] getFiles(File dir, boolean useFileHiding) { |
---|
246 | // System.out.println(dir.getName()+" "+(dir instanceof CustomFile)); |
---|
247 | if (handler != null) { |
---|
248 | return handler.listResources(dir.getName()); |
---|
249 | } |
---|
250 | return null; |
---|
251 | } |
---|
252 | |
---|
253 | public String[] list() { |
---|
254 | if (handler != null) { |
---|
255 | File f[] = handler.listResources(root); |
---|
256 | if (f == null || f.length == 0) { |
---|
257 | return null; |
---|
258 | } |
---|
259 | String[] s = new String[f.length]; |
---|
260 | for (int i=0; i<s.length; i++) s[i] = f[i].getName(); |
---|
261 | return s; |
---|
262 | } |
---|
263 | return null; |
---|
264 | } |
---|
265 | |
---|
266 | public File getHomeDirectory() { |
---|
267 | if (handler == null) return null; |
---|
268 | return new CustomFile(root, true); |
---|
269 | } |
---|
270 | |
---|
271 | public File getDefaultDirectory() { |
---|
272 | if (handler == null) return super.getDefaultDirectory(); |
---|
273 | return new CustomFile(root, true); |
---|
274 | } |
---|
275 | |
---|
276 | /** Never used in this case */ |
---|
277 | public File createNewFolder(File containingDir) throws IOException { |
---|
278 | return null; |
---|
279 | } |
---|
280 | |
---|
281 | } |
---|
282 | |
---|
283 | static class CustomFile extends File { |
---|
284 | private String fileName; |
---|
285 | private boolean isDir; |
---|
286 | public CustomFile(String fileName, boolean isDir) { |
---|
287 | super(fileName); |
---|
288 | this.fileName = fileName; |
---|
289 | this.isDir = isDir; |
---|
290 | } |
---|
291 | |
---|
292 | public boolean isDirectory() { |
---|
293 | return isDir; |
---|
294 | } |
---|
295 | |
---|
296 | public String getName() { |
---|
297 | // try { |
---|
298 | // throw new Exception(); |
---|
299 | // } catch (Exception e) { |
---|
300 | // e.printStackTrace(); |
---|
301 | // } |
---|
302 | return fileName; |
---|
303 | } |
---|
304 | |
---|
305 | public String getParent() { |
---|
306 | // System.out.println(super.getParent()); |
---|
307 | return ""; |
---|
308 | } |
---|
309 | } |
---|
310 | |
---|
311 | /** generic interface used to declare the common methods for handling a dir or jar file */ |
---|
312 | interface SystemViewHandler { |
---|
313 | public File[] listResources(String resource); |
---|
314 | } |
---|
315 | |
---|
316 | /** Utility class used to handle the searching of particular resources inside a jar file */ |
---|
317 | static class JarHandler implements SystemViewHandler { |
---|
318 | private String jarName; |
---|
319 | public JarHandler(String jarName) { |
---|
320 | this.jarName = jarName; |
---|
321 | } |
---|
322 | public File[] listResources(String resource) { |
---|
323 | if (resource == null) return null; |
---|
324 | File f = new File(jarName); |
---|
325 | try { |
---|
326 | if (f.isFile() && f.getName().endsWith(".jar")){ |
---|
327 | final JarFile jf = new JarFile(f); |
---|
328 | // System.out.println(f); |
---|
329 | final Enumeration<JarEntry> e = jf.entries(); |
---|
330 | JarEntry je; |
---|
331 | Vector<File> v = new Vector<File>(); |
---|
332 | while (e.hasMoreElements()){ |
---|
333 | je = e.nextElement(); |
---|
334 | String name = je.getName(); |
---|
335 | if (!name.startsWith("/")) name = "/"+name; |
---|
336 | // System.out.println(name + " " + resource); |
---|
337 | if (name.startsWith(resource) && name.length() > resource.length()) { |
---|
338 | String end = name.substring(resource.length()); |
---|
339 | if (end.length() > 0 && end.startsWith("/")) end = end.substring(1); |
---|
340 | if (end.contains("/") || end.length() < 1) continue; // uninteresting result |
---|
341 | v.add(new CustomFile(end, je.isDirectory())); |
---|
342 | } else continue; |
---|
343 | } |
---|
344 | if (v.size() == 0) return null; |
---|
345 | CustomFile ff[] = new CustomFile[v.size()]; |
---|
346 | ff = v.toArray(ff); |
---|
347 | return ff; |
---|
348 | } |
---|
349 | } catch (Throwable t) { |
---|
350 | t.printStackTrace(); |
---|
351 | return null; |
---|
352 | } |
---|
353 | return null; |
---|
354 | } |
---|
355 | } |
---|
356 | |
---|
357 | static class FileHandler implements SystemViewHandler { |
---|
358 | private String rootDir; |
---|
359 | public FileHandler(String dirName) { |
---|
360 | this.rootDir = dirName; |
---|
361 | } |
---|
362 | public File[] listResources(String resource) { |
---|
363 | if(File.separatorChar == '\\') { |
---|
364 | resource = resource.replace("/", "\\").trim(); |
---|
365 | } |
---|
366 | File dir = new File(rootDir+File.separatorChar+resource); |
---|
367 | if (dir.exists() && dir.isDirectory()) { |
---|
368 | File f[] = dir.listFiles(); |
---|
369 | if (f == null || f.length == 0) { |
---|
370 | return f; |
---|
371 | } |
---|
372 | CustomFile cf[] = new CustomFile[f.length]; |
---|
373 | for (int i=0; i<f.length; i++) |
---|
374 | cf[i] = new CustomFile(f[i].getName(), f[i].isDirectory()); |
---|
375 | return cf; |
---|
376 | } |
---|
377 | else { |
---|
378 | System.out.println("Dir "+rootDir+File.separatorChar+resource+" does not exist"); |
---|
379 | } |
---|
380 | return new File[0]; |
---|
381 | } |
---|
382 | } |
---|
383 | |
---|
384 | // method used to get the lock on a inputstream of a an internal file representation... |
---|
385 | public InputStream openStream(String name) throws Exception { |
---|
386 | // System.out.println(name); |
---|
387 | URL u = getClass().getClassLoader().getResource(name); |
---|
388 | |
---|
389 | try { |
---|
390 | return u.openConnection().getInputStream(); |
---|
391 | } catch (Throwable t1) { |
---|
392 | |
---|
393 | try { |
---|
394 | if(File.separatorChar == '\\') { |
---|
395 | name = name.replace("/", "\\").trim(); |
---|
396 | } |
---|
397 | return new FileInputStream(System.getProperty("user.dir") + name); |
---|
398 | }catch (Throwable t2) { |
---|
399 | |
---|
400 | try { |
---|
401 | if(File.separatorChar == '\\') { |
---|
402 | name = name.replace("/", "\\").trim(); |
---|
403 | } |
---|
404 | |
---|
405 | return new FileInputStream(System.getProperty("user.home") + name); |
---|
406 | } catch(Throwable t3) { |
---|
407 | |
---|
408 | File f = new File(name); |
---|
409 | if (!f.exists() || f.isDirectory()) return null; |
---|
410 | return new FileInputStream(name); |
---|
411 | } |
---|
412 | |
---|
413 | } |
---|
414 | } |
---|
415 | |
---|
416 | } |
---|
417 | |
---|
418 | public OutputStream openWriteStream(String name) throws Exception { |
---|
419 | if (name.startsWith("/")) name = name.substring(1); |
---|
420 | URL u = getClass().getClassLoader().getResource(name); |
---|
421 | try { |
---|
422 | return u.openConnection().getOutputStream(); |
---|
423 | } catch (Throwable t) { |
---|
424 | try { |
---|
425 | if(File.separatorChar == '\\') { |
---|
426 | name = name.replace("/", "\\").trim(); |
---|
427 | } |
---|
428 | return new FileOutputStream(System.getProperty("user.dir") + File.separatorChar + name); |
---|
429 | } catch (Throwable t2) { |
---|
430 | return new FileOutputStream(name); |
---|
431 | } |
---|
432 | } |
---|
433 | } |
---|
434 | |
---|
435 | public static void main(String args[]) { |
---|
436 | FileSystemView v = Utils.getInstance().getSystemView("/maps/variations"); |
---|
437 | File f[] = v.getFiles(v.getRoots()[0], false); |
---|
438 | JFileChooser fc=new JFileChooser("/maps/variations", v); |
---|
439 | fc.setDialogTitle("Choose the file specifying the flow variations"); |
---|
440 | int retVal=fc.showOpenDialog(null); |
---|
441 | System.out.println(fc.getSelectedFile().getAbsolutePath()); |
---|
442 | } |
---|
443 | |
---|
444 | } // end of class Utils |
---|
445 | |
---|