Mercurial > dive4elements > framework
comparison artifacts-common/src/main/java/de/intevation/artifacts/common/utils/XMLUtils.java @ 234:23d642319a0b
Added a boolean flag to XML byte serialisation to compress/decompress, too.
artifacts/trunk@1641 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
|---|---|
| date | Sun, 03 Apr 2011 12:10:54 +0000 |
| parents | c03d3a872cd2 |
| children | 8b58259d3dd3 |
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| 233:16cd059945e5 | 234:23d642319a0b |
|---|---|
| 5 * Read the file LGPL.txt coming with the software for details | 5 * Read the file LGPL.txt coming with the software for details |
| 6 * or visit http://www.gnu.org/licenses/ if it does not exist. | 6 * or visit http://www.gnu.org/licenses/ if it does not exist. |
| 7 */ | 7 */ |
| 8 | 8 |
| 9 package de.intevation.artifacts.common.utils; | 9 package de.intevation.artifacts.common.utils; |
| 10 | |
| 11 import java.util.zip.GZIPInputStream; | |
| 12 import java.util.zip.GZIPOutputStream; | |
| 10 | 13 |
| 11 import java.io.ByteArrayInputStream; | 14 import java.io.ByteArrayInputStream; |
| 12 import java.io.FileInputStream; | 15 import java.io.FileInputStream; |
| 13 import java.io.BufferedInputStream; | 16 import java.io.BufferedInputStream; |
| 14 import java.io.ByteArrayOutputStream; | 17 import java.io.ByteArrayOutputStream; |
| 333 } | 336 } |
| 334 | 337 |
| 335 return false; | 338 return false; |
| 336 } | 339 } |
| 337 | 340 |
| 341 public static byte [] toByteArray(Document document) { | |
| 342 return toByteArray(document, false); | |
| 343 } | |
| 344 | |
| 338 /** | 345 /** |
| 339 * Transforms an XML document into a byte array. | 346 * Transforms an XML document into a byte array. |
| 340 * @param document The document to be streamed out. | 347 * @param document The document to be streamed out. |
| 348 * @param compress The document should be compressed, too. | |
| 341 * @return the byte array or null if operation failed or | 349 * @return the byte array or null if operation failed or |
| 342 * document is null. | 350 * document is null. |
| 343 */ | 351 */ |
| 344 public static byte [] toByteArray(Document document) { | 352 public static byte [] toByteArray(Document document, boolean compress) { |
| 345 if (document == null) { | 353 if (document != null) { |
| 346 return null; | 354 try { |
| 347 } | 355 ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| 348 ByteArrayOutputStream baos = new ByteArrayOutputStream(); | 356 OutputStream out = compress |
| 349 return toStream(document, baos) | 357 ? new GZIPOutputStream(baos) |
| 350 ? baos.toByteArray() | 358 : baos; |
| 351 : null; | 359 boolean success = toStream(document, out); |
| 360 out.flush(); | |
| 361 out.close(); | |
| 362 return success | |
| 363 ? baos.toByteArray() | |
| 364 : null; | |
| 365 } | |
| 366 catch (IOException ioe) { | |
| 367 logger.error(ioe); | |
| 368 } | |
| 369 } | |
| 370 return null; | |
| 352 } | 371 } |
| 353 | 372 |
| 354 public static Document fromByteArray(byte [] data) { | 373 public static Document fromByteArray(byte [] data) { |
| 355 if (data == null) { | 374 return fromByteArray(data, false); |
| 356 return null; | 375 } |
| 357 } | 376 |
| 358 return parseDocument(new ByteArrayInputStream(data)); | 377 public static Document fromByteArray(byte [] data, boolean decompress) { |
| 378 if (data != null) { | |
| 379 InputStream in = new ByteArrayInputStream(data); | |
| 380 try { | |
| 381 if (decompress) { | |
| 382 in = new GZIPInputStream(in); | |
| 383 } | |
| 384 return parseDocument(in); | |
| 385 } | |
| 386 catch (IOException ioe) { | |
| 387 logger.error(ioe); | |
| 388 } | |
| 389 finally { | |
| 390 try { | |
| 391 in.close(); | |
| 392 } | |
| 393 catch (IOException ioe) { | |
| 394 logger.error(ioe); | |
| 395 } | |
| 396 } | |
| 397 } | |
| 398 return null; | |
| 359 } | 399 } |
| 360 } | 400 } |
| 361 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : | 401 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |