1 /* 2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @bug 4434723 4482726 4559072 4638365 4795550 5081340 5103988 6253145 26 * 6984545 27 * @summary Test FileChannel.transferFrom and transferTo 28 * @library .. 29 */ 30 31 import java.io.*; 32 import java.net.*; 33 import java.nio.*; 34 import java.nio.channels.*; 35 import java.nio.channels.spi.SelectorProvider; 36 import java.nio.file.StandardOpenOption; 37 import java.nio.file.FileAlreadyExistsException; 38 import java.util.Random; 39 40 41 public class Transfer { 42 43 private static Random generator = new Random(); 44 45 private static int[] testSizes = { 46 0, 10, 1023, 1024, 1025, 2047, 2048, 2049 }; 47 48 public static void main(String[] args) throws Exception { 49 testFileChannel(); 50 for (int i=0; i<testSizes.length; i++) 51 testReadableByteChannel(testSizes[i]); 52 xferTest02(); // for bug 4482726 53 xferTest03(); // for bug 4559072 54 xferTest04(); // for bug 4638365 55 xferTest05(); // for bug 4638365 56 xferTest06(); // for bug 5081340 57 xferTest07(); // for bug 5103988 58 xferTest08(); // for bug 6253145 59 xferTest09(); // for bug 6984545 60 } 61 62 private static void testFileChannel() throws Exception { 63 File source = File.createTempFile("source", null); 64 source.deleteOnExit(); 65 File sink = File.createTempFile("sink", null); 66 sink.deleteOnExit(); 67 68 FileOutputStream fos = new FileOutputStream(source); 69 FileChannel sourceChannel = fos.getChannel(); 70 sourceChannel.write(ByteBuffer.wrap( 71 "Use the source, Luke!".getBytes())); 72 sourceChannel.close(); 73 74 FileInputStream fis = new FileInputStream(source); 75 sourceChannel = fis.getChannel(); 76 77 RandomAccessFile raf = new RandomAccessFile(sink, "rw"); 78 FileChannel sinkChannel = raf.getChannel(); 79 long oldSinkPosition = sinkChannel.position(); 80 long oldSourcePosition = sourceChannel.position(); 81 82 long bytesWritten = sinkChannel.transferFrom(sourceChannel, 0, 10); 83 if (bytesWritten != 10) 84 throw new RuntimeException("Transfer failed"); 85 86 if (sourceChannel.position() == oldSourcePosition) 87 throw new RuntimeException("Source position didn't change"); 88 89 if (sinkChannel.position() != oldSinkPosition) 90 throw new RuntimeException("Sink position changed"); 91 92 if (sinkChannel.size() != 10) 93 throw new RuntimeException("Unexpected sink size"); 94 95 bytesWritten = sinkChannel.transferFrom(sourceChannel, 1000, 10); 96 97 if (bytesWritten > 0) 98 throw new RuntimeException("Wrote past file size"); 99 100 sourceChannel.close(); 101 sinkChannel.close(); 102 103 source.delete(); 104 sink.delete(); 105 } 106 107 private static void testReadableByteChannel(int size) throws Exception { 108 SelectorProvider sp = SelectorProvider.provider(); 109 Pipe p = sp.openPipe(); 110 Pipe.SinkChannel sink = p.sink(); 111 Pipe.SourceChannel source = p.source(); 112 sink.configureBlocking(false); 113 114 ByteBuffer outgoingdata = ByteBuffer.allocateDirect(size + 10); 115 byte[] someBytes = new byte[size + 10]; 116 generator.nextBytes(someBytes); 117 outgoingdata.put(someBytes); 118 outgoingdata.flip(); 119 120 int totalWritten = 0; 121 while (totalWritten < size + 10) { 122 int written = sink.write(outgoingdata); 123 if (written < 0) 124 throw new Exception("Write failed"); 125 totalWritten += written; 126 } 127 128 File f = File.createTempFile("blah"+size, null); 129 f.deleteOnExit(); 130 RandomAccessFile raf = new RandomAccessFile(f, "rw"); 131 FileChannel fc = raf.getChannel(); 132 long oldPosition = fc.position(); 133 134 long bytesWritten = fc.transferFrom(source, 0, size); 135 fc.force(true); 136 if (bytesWritten != size) 137 throw new RuntimeException("Transfer failed"); 138 139 if (fc.position() != oldPosition) 140 throw new RuntimeException("Position changed"); 141 142 if (fc.size() != size) 143 throw new RuntimeException("Unexpected sink size "+ fc.size()); 144 145 fc.close(); 146 sink.close(); 147 source.close(); 148 149 f.delete(); 150 } 151 152 public static void xferTest02() throws Exception { 153 byte[] srcData = new byte[5000]; 154 for (int i=0; i<5000; i++) 155 srcData[i] = (byte)generator.nextInt(); 156 157 // get filechannel for the source file. 158 File source = File.createTempFile("source", null); 159 source.deleteOnExit(); 160 RandomAccessFile raf1 = new RandomAccessFile(source, "rw"); 161 FileChannel fc1 = raf1.getChannel(); 162 163 // write out data to the file channel 164 long bytesWritten = 0; 165 while (bytesWritten < 5000) { 166 bytesWritten = fc1.write(ByteBuffer.wrap(srcData)); 167 } 168 169 // get filechannel for the dst file. 170 File dest = File.createTempFile("dest", null); 171 dest.deleteOnExit(); 172 RandomAccessFile raf2 = new RandomAccessFile(dest, "rw"); 173 FileChannel fc2 = raf2.getChannel(); 174 175 int bytesToWrite = 3000; 176 int startPosition = 1000; 177 178 bytesWritten = fc1.transferTo(startPosition, bytesToWrite, fc2); 179 180 fc1.close(); 181 fc2.close(); 182 raf1.close(); 183 raf2.close(); 184 185 source.delete(); 186 dest.delete(); 187 } 188 189 public static void xferTest03() throws Exception { 190 byte[] srcData = new byte[] {1,2,3,4} ; 191 192 // get filechannel for the source file. 193 File source = File.createTempFile("source", null); 194 source.deleteOnExit(); 195 RandomAccessFile raf1 = new RandomAccessFile(source, "rw"); 196 FileChannel fc1 = raf1.getChannel(); 197 fc1.truncate(0); 198 199 // write out data to the file channel 200 int bytesWritten = 0; 201 while (bytesWritten < 4) { 202 bytesWritten = fc1.write(ByteBuffer.wrap(srcData)); 203 } 204 205 // get filechannel for the dst file. 206 File dest = File.createTempFile("dest", null); 207 dest.deleteOnExit(); 208 RandomAccessFile raf2 = new RandomAccessFile(dest, "rw"); 209 FileChannel fc2 = raf2.getChannel(); 210 fc2.truncate(0); 211 212 fc1.transferTo(0, srcData.length + 1, fc2); 213 214 if (fc2.size() > 4) 215 throw new Exception("xferTest03 failed"); 216 217 fc1.close(); 218 fc2.close(); 219 raf1.close(); 220 raf2.close(); 221 222 source.delete(); 223 dest.delete(); 224 } 225 226 // Test transferTo with large file 227 public static void xferTest04() throws Exception { 228 // Windows and Linux can't handle the really large file sizes for a 229 // truncate or a positional write required by the test for 4563125 230 String osName = System.getProperty("os.name"); 231 if (!osName.startsWith("SunOS")) 232 return; 233 234 File source = File.createTempFile("blah", null); 235 source.deleteOnExit(); 236 long testSize = ((long)Integer.MAX_VALUE) * 2; 237 initTestFile(source, 10); 238 RandomAccessFile raf = new RandomAccessFile(source, "rw"); 239 FileChannel fc = raf.getChannel(); 240 fc.write(ByteBuffer.wrap("Use the source!".getBytes()), testSize - 40); 241 fc.close(); 242 raf.close(); 243 244 File sink = File.createTempFile("sink", null); 245 sink.deleteOnExit(); 246 247 FileInputStream fis = new FileInputStream(source); 248 FileChannel sourceChannel = fis.getChannel(); 249 250 raf = new RandomAccessFile(sink, "rw"); 251 FileChannel sinkChannel = raf.getChannel(); 252 253 long bytesWritten = sourceChannel.transferTo(testSize -40, 10, 254 sinkChannel); 255 if (bytesWritten != 10) { 256 throw new RuntimeException("Transfer test 4 failed " + 257 bytesWritten); 258 } 259 sourceChannel.close(); 260 sinkChannel.close(); 261 262 source.delete(); 263 sink.delete(); 264 } 265 266 // Test transferFrom with large file 267 public static void xferTest05() throws Exception { 268 // Create a source file & large sink file for the test 269 File source = File.createTempFile("blech", null); 270 source.deleteOnExit(); 271 initTestFile(source, 100); 272 273 // Create the sink file as a sparse file if possible 274 File sink = null; 275 FileChannel fc = null; 276 while (fc == null) { 277 sink = File.createTempFile("sink", null); 278 // re-create as a sparse file 279 sink.delete(); 280 try { 281 fc = FileChannel.open(sink.toPath(), 282 StandardOpenOption.CREATE_NEW, 283 StandardOpenOption.WRITE, 284 StandardOpenOption.SPARSE); 285 } catch (FileAlreadyExistsException ignore) { 286 // someone else got it 287 } 288 } 289 sink.deleteOnExit(); 290 291 long testSize = ((long)Integer.MAX_VALUE) * 2; 292 try { 293 fc.write(ByteBuffer.wrap("Use the source!".getBytes()), 294 testSize - 40); 295 } catch (IOException e) { 296 // Can't set up the test, abort it 297 System.err.println("xferTest05 was aborted."); 298 return; 299 } finally { 300 fc.close(); 301 } 302 303 // Get new channels for the source and sink and attempt transfer 304 FileChannel sourceChannel = new FileInputStream(source).getChannel(); 305 try { 306 FileChannel sinkChannel = new RandomAccessFile(sink, "rw").getChannel(); 307 try { 308 long bytesWritten = sinkChannel.transferFrom(sourceChannel, 309 testSize - 40, 10); 310 if (bytesWritten != 10) { 311 throw new RuntimeException("Transfer test 5 failed " + 312 bytesWritten); 313 } 314 } finally { 315 sinkChannel.close(); 316 } 317 } finally { 318 sourceChannel.close(); 319 } 320 321 source.delete(); 322 sink.delete(); 323 } 324 325 static void checkFileData(File file, String expected) throws Exception { 326 FileInputStream fis = new FileInputStream(file); 327 Reader r = new BufferedReader(new InputStreamReader(fis, "ASCII")); 328 StringBuilder sb = new StringBuilder(); 329 int c; 330 while ((c = r.read()) != -1) 331 sb.append((char)c); 332 String contents = sb.toString(); 333 if (! contents.equals(expected)) 334 throw new Exception("expected: " + expected 335 + ", got: " + contents); 336 r.close(); 337 } 338 339 // Test transferFrom asking for more bytes than remain in source 340 public static void xferTest06() throws Exception { 341 String data = "Use the source, Luke!"; 342 343 File source = File.createTempFile("source", null); 344 source.deleteOnExit(); 345 File sink = File.createTempFile("sink", null); 346 sink.deleteOnExit(); 347 348 FileOutputStream fos = new FileOutputStream(source); 349 fos.write(data.getBytes("ASCII")); 350 fos.close(); 351 352 FileChannel sourceChannel = 353 new RandomAccessFile(source, "rw").getChannel(); 354 sourceChannel.position(7); 355 long remaining = sourceChannel.size() - sourceChannel.position(); 356 FileChannel sinkChannel = 357 new RandomAccessFile(sink, "rw").getChannel(); 358 long n = sinkChannel.transferFrom(sourceChannel, 0L, 359 sourceChannel.size()); // overflow 360 if (n != remaining) 361 throw new Exception("n == " + n + ", remaining == " + remaining); 362 363 sinkChannel.close(); 364 sourceChannel.close(); 365 366 checkFileData(source, data); 367 checkFileData(sink, data.substring(7,data.length())); 368 369 source.delete(); 370 } 371 372 // Test transferTo to non-blocking socket channel 373 public static void xferTest07() throws Exception { 374 File source = File.createTempFile("source", null); 375 source.deleteOnExit(); 376 377 FileChannel sourceChannel = new RandomAccessFile(source, "rw") 378 .getChannel(); 379 sourceChannel.position(32000L) 380 .write(ByteBuffer.wrap("The End".getBytes())); 381 382 // The sink is a non-blocking socket channel 383 ServerSocketChannel ssc = ServerSocketChannel.open(); 384 ssc.socket().bind(new InetSocketAddress(0)); 385 InetSocketAddress sa = new InetSocketAddress( 386 InetAddress.getLocalHost(), ssc.socket().getLocalPort()); 387 SocketChannel sink = SocketChannel.open(sa); 388 sink.configureBlocking(false); 389 SocketChannel other = ssc.accept(); 390 391 long size = sourceChannel.size(); 392 393 // keep sending until congested 394 long n; 395 do { 396 n = sourceChannel.transferTo(0, size, sink); 397 } while (n > 0); 398 399 sourceChannel.close(); 400 sink.close(); 401 other.close(); 402 ssc.close(); 403 source.delete(); 404 } 405 406 407 // Test transferTo with file positions larger than 2 and 4GB 408 public static void xferTest08() throws Exception { 409 // Creating a sparse 6GB file on Windows takes too long 410 String osName = System.getProperty("os.name"); 411 if (osName.startsWith("Windows")) 412 return; 413 414 final long G = 1024L * 1024L * 1024L; 415 416 // Create 6GB file 417 418 File file = File.createTempFile("source", null); 419 file.deleteOnExit(); 420 421 RandomAccessFile raf = new RandomAccessFile(file, "rw"); 422 FileChannel fc = raf.getChannel(); 423 424 try { 425 fc.write(ByteBuffer.wrap("0123456789012345".getBytes("UTF-8")), 6*G); 426 } catch (IOException x) { 427 System.err.println("Unable to create test file:" + x); 428 fc.close(); 429 return; 430 } 431 432 // Setup looback connection and echo server 433 434 ServerSocketChannel ssc = ServerSocketChannel.open(); 435 ssc.socket().bind(new InetSocketAddress(0)); 436 437 InetAddress lh = InetAddress.getLocalHost(); 438 InetSocketAddress isa = new InetSocketAddress(lh, ssc.socket().getLocalPort()); 439 SocketChannel source = SocketChannel.open(isa); 440 SocketChannel sink = ssc.accept(); 441 442 Thread thr = new Thread(new EchoServer(sink)); 443 thr.start(); 444 445 // Test data is array of positions and counts 446 447 long testdata[][] = { 448 { 2*G-1, 1 }, 449 { 2*G-1, 10 }, // across 2GB boundary 450 { 2*G, 1 }, 451 { 2*G, 10 }, 452 { 2*G+1, 1 }, 453 { 4*G-1, 1 }, 454 { 4*G-1, 10 }, // across 4GB boundary 455 { 4*G, 1 }, 456 { 4*G, 10 }, 457 { 4*G+1, 1 }, 458 { 5*G-1, 1 }, 459 { 5*G-1, 10 }, 460 { 5*G, 1 }, 461 { 5*G, 10 }, 462 { 5*G+1, 1 }, 463 { 6*G, 1 }, 464 }; 465 466 ByteBuffer sendbuf = ByteBuffer.allocateDirect(100); 467 ByteBuffer readbuf = ByteBuffer.allocateDirect(100); 468 469 try { 470 byte value = 0; 471 for (int i=0; i<testdata.length; i++) { 472 long position = testdata[(int)i][0]; 473 long count = testdata[(int)i][1]; 474 475 // generate bytes 476 for (long j=0; j<count; j++) { 477 sendbuf.put(++value); 478 } 479 sendbuf.flip(); 480 481 // write to file and transfer to echo server 482 fc.write(sendbuf, position); 483 fc.transferTo(position, count, source); 484 485 // read from echo server 486 long nread = 0; 487 while (nread < count) { 488 int n = source.read(readbuf); 489 if (n < 0) 490 throw new RuntimeException("Premature EOF!"); 491 nread += n; 492 } 493 494 // check reply from echo server 495 readbuf.flip(); 496 sendbuf.flip(); 497 if (!readbuf.equals(sendbuf)) 498 throw new RuntimeException("Echo'ed bytes do not match!"); 499 readbuf.clear(); 500 sendbuf.clear(); 501 } 502 } finally { 503 source.close(); 504 ssc.close(); 505 fc.close(); 506 file.delete(); 507 } 508 } 509 510 // Test that transferFrom with FileChannel source that is not readable 511 // throws NonReadableChannelException 512 static void xferTest09() throws Exception { 513 File source = File.createTempFile("source", null); 514 source.deleteOnExit(); 515 516 File target = File.createTempFile("target", null); 517 target.deleteOnExit(); 518 519 FileChannel fc1 = new FileOutputStream(source).getChannel(); 520 FileChannel fc2 = new RandomAccessFile(target, "rw").getChannel(); 521 try { 522 fc2.transferFrom(fc1, 0L, 0); 523 throw new RuntimeException("NonReadableChannelException expected"); 524 } catch (NonReadableChannelException expected) { 525 } finally { 526 fc1.close(); 527 fc2.close(); 528 } 529 } 530 531 /** 532 * Creates file blah of specified size in bytes. 533 */ 534 private static void initTestFile(File blah, long size) throws Exception { 535 if (blah.exists()) 536 blah.delete(); 537 FileOutputStream fos = new FileOutputStream(blah); 538 BufferedWriter awriter 539 = new BufferedWriter(new OutputStreamWriter(fos, "8859_1")); 540 541 for(int i=0; i<size; i++) { 542 awriter.write("e"); 543 } 544 awriter.flush(); 545 awriter.close(); 546 } 547 548 /** 549 * Simple in-process server to echo bytes read by a given socket channel 550 */ 551 static class EchoServer implements Runnable { 552 private SocketChannel sc; 553 554 public EchoServer(SocketChannel sc) { 555 this.sc = sc; 556 } 557 558 public void run() { 559 ByteBuffer bb = ByteBuffer.allocateDirect(1024); 560 try { 561 for (;;) { 562 int n = sc.read(bb); 563 if (n < 0) 564 break; 565 566 bb.flip(); 567 while (bb.remaining() > 0) { 568 sc.write(bb); 569 } 570 bb.clear(); 571 } 572 } catch (IOException x) { 573 x.printStackTrace(); 574 } finally { 575 try { 576 sc.close(); 577 } catch (IOException ignore) { } 578 } 579 } 580 } 581 582 }