Michael Osipov created WAGON-482:
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Summary: Use sparse files in HugeFileDownloadTest with Java 7
Key: WAGON-482
URL: https://issues.apache.org/jira/browse/WAGON-482
Project: Maven Wagon
Issue Type: Improvement
Components: wagon-http
Affects Versions: 2.11
Reporter: Michael Osipov
Assignee: Michael Osipov
Unfortunately, {{RandomAccessFile}} does not create sparse files on Windows
with seek/position, it requires a specific flag set with NTFS. Luckily, NIO.2
supports this. File creation for 4 GiB will be tens of milliseconds. Use this
snippet as soon as we move to Java 7:
{code:java}
Path tempDirectory = Files.createTempDirectory("jetty");
final ByteBuffer buf = ByteBuffer.allocate(4).putInt(2);
buf.rewind();
final OpenOption[] options = { StandardOpenOption.WRITE,
StandardOpenOption.CREATE_NEW , StandardOpenOption.SPARSE };
final Path hugeFile = tempDirectory.resolve("hugefile.txt");
try (final SeekableByteChannel channel = Files.newByteChannel(hugeFile,
options);) {
channel.position(HUGE_FILE_SIZE);
channel.write(buf);
}
{code}
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