Mercurial > dive4elements > framework
comparison artifacts-common/src/main/java/de/intevation/artifacts/common/utils/FileTools.java @ 383:b076c9e9fdfd
Added method to extract zip archives to a specified directory.
artifacts/trunk@4293 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Raimund Renkert <raimund.renkert@intevation.de> |
|---|---|
| date | Wed, 25 Apr 2012 07:47:56 +0000 |
| parents | c489256a188b |
| children | c40729bfe06d |
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| 382:a94bc2491b41 | 383:b076c9e9fdfd |
|---|---|
| 12 import java.io.IOException; | 12 import java.io.IOException; |
| 13 import java.io.InputStream; | 13 import java.io.InputStream; |
| 14 import java.io.FileInputStream; | 14 import java.io.FileInputStream; |
| 15 import java.io.FileOutputStream; | 15 import java.io.FileOutputStream; |
| 16 import java.io.OutputStream; | 16 import java.io.OutputStream; |
| 17 import java.io.BufferedOutputStream; | |
| 17 import java.nio.channels.FileChannel; | 18 import java.nio.channels.FileChannel; |
| 18 | 19 |
| 19 import java.util.Deque; | 20 import java.util.Deque; |
| 20 import java.util.ArrayDeque; | 21 import java.util.ArrayDeque; |
| 21 import java.util.List; | 22 import java.util.List; |
| 22 import java.util.Set; | 23 import java.util.Set; |
| 23 import java.util.HashSet; | 24 import java.util.HashSet; |
| 24 import java.util.ArrayList; | 25 import java.util.ArrayList; |
| 26 import java.util.Enumeration; | |
| 27 import java.util.zip.ZipFile; | |
| 25 import java.util.zip.ZipEntry; | 28 import java.util.zip.ZipEntry; |
| 26 import java.util.zip.ZipOutputStream; | 29 import java.util.zip.ZipOutputStream; |
| 27 | 30 |
| 28 import org.apache.log4j.Logger; | 31 import org.apache.log4j.Logger; |
| 29 | 32 |
| 343 } | 346 } |
| 344 } | 347 } |
| 345 } | 348 } |
| 346 | 349 |
| 347 out.finish(); | 350 out.finish(); |
| 351 } | |
| 352 | |
| 353 | |
| 354 public static void extractArchive(File archive, File destDir) | |
| 355 throws IOException { | |
| 356 if (!destDir.exists()) { | |
| 357 destDir.mkdir(); | |
| 358 } | |
| 359 | |
| 360 ZipFile zipFile = new ZipFile(archive); | |
| 361 Enumeration entries = zipFile.entries(); | |
| 362 | |
| 363 byte[] buffer = new byte[16384]; | |
| 364 int len; | |
| 365 while (entries.hasMoreElements()) { | |
| 366 ZipEntry entry = (ZipEntry) entries.nextElement(); | |
| 367 | |
| 368 String entryFileName = entry.getName(); | |
| 369 | |
| 370 File dir = dir = buildDirectoryHierarchyFor(entryFileName, destDir); | |
| 371 if (!dir.exists()) { | |
| 372 dir.mkdirs(); | |
| 373 } | |
| 374 | |
| 375 if (!entry.isDirectory()) { | |
| 376 BufferedOutputStream bos = new BufferedOutputStream( | |
| 377 new FileOutputStream(new File(destDir, entryFileName))); | |
| 378 | |
| 379 BufferedInputStream bis = new BufferedInputStream(zipFile | |
| 380 .getInputStream(entry)); | |
| 381 | |
| 382 while ((len = bis.read(buffer)) > 0) { | |
| 383 bos.write(buffer, 0, len); | |
| 384 } | |
| 385 | |
| 386 bos.flush(); | |
| 387 bos.close(); | |
| 388 bis.close(); | |
| 389 } | |
| 390 } | |
| 391 zipFile.close(); | |
| 392 } | |
| 393 | |
| 394 private static File buildDirectoryHierarchyFor( | |
| 395 String entryName, | |
| 396 File destDir) | |
| 397 { | |
| 398 int lastIndex = entryName.lastIndexOf('/'); | |
| 399 String entryFileName = entryName.substring(lastIndex + 1); | |
| 400 String internalPathToEntry = entryName.substring(0, lastIndex + 1); | |
| 401 return new File(destDir, internalPathToEntry); | |
| 348 } | 402 } |
| 349 | 403 |
| 350 /** | 404 /** |
| 351 * A class representing a directory with a prefix. | 405 * A class representing a directory with a prefix. |
| 352 */ | 406 */ |