alluxio.util.compression

Class TarUtils

java.lang.Object

alluxio.util.compression.TarUtils

public final class TarUtils
extends Object

Utility methods for working with tar archives.

Method Summary

Modifier and Type	Method and Description
static long	readTarGz(Path dirPath, InputStream input) Reads a gzipped tar archive from a stream and writes it to the given path.
static long	writeTarGz(Path dirPath, OutputStream output, int compressionLevel) Creates a gzipped tar archive from the given path, streaming the data to the give output stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

writeTarGz

public static long writeTarGz(Path dirPath,
                              OutputStream output,
                              int compressionLevel)
                       throws IOException,
                              InterruptedException

Creates a gzipped tar archive from the given path, streaming the data to the give output stream.

Parameters:

dirPath - the path to archive

compressionLevel - the compression level to use (0 for no compression, 9 for the most compression, or -1 for system default)

output - the output stream to write the data to

Returns:

the number of bytes copied from the directory into the archive

Throws:

IOException

InterruptedException

readTarGz

public static long readTarGz(Path dirPath,
                             InputStream input)
                      throws IOException

Reads a gzipped tar archive from a stream and writes it to the given path.

Parameters:

dirPath - the path to write the archive to

input - the input stream

Returns:

the number of bytes copied from the archive in the directory

Throws:

IOException