org.apache.commons.compress.compressors.bzip2

Class BZip2Utils

java.lang.Object

org.apache.commons.compress.compressors.bzip2.BZip2Utils

public abstract class BZip2Utils
extends java.lang.Object

Utility code for the BZip2 compression format.

Since:

1.1

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getCompressedFilename(java.lang.String filename) Maps the given filename to the name that the file should have after compression with bzip2.
static java.lang.String	getUncompressedFilename(java.lang.String filename) Maps the given name of a bzip2-compressed file to the name that the file should have after uncompression.
static boolean	isCompressedFilename(java.lang.String filename) Detects common bzip2 suffixes in the given filename.

Methods inherited from class java.lang.Object

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

Method Detail

isCompressedFilename

public static boolean isCompressedFilename(java.lang.String filename)

Detects common bzip2 suffixes in the given filename.

Parameters:

filename - name of a file

Returns:

true if the filename has a common bzip2 suffix, false otherwise

getUncompressedFilename

public static java.lang.String getUncompressedFilename(java.lang.String filename)

Maps the given name of a bzip2-compressed file to the name that the file should have after uncompression. Commonly used file type specific suffixes like ".tbz" or ".tbz2" are automatically detected and correctly mapped. For example the name "package.tbz2" is mapped to "package.tar". And any filenames with the generic ".bz2" suffix (or any other generic bzip2 suffix) is mapped to a name without that suffix. If no bzip2 suffix is detected, then the filename is returned unmapped.

Parameters:

filename - name of a file

Returns:

name of the corresponding uncompressed file

getCompressedFilename

public static java.lang.String getCompressedFilename(java.lang.String filename)

Maps the given filename to the name that the file should have after compression with bzip2. Currently this method simply appends the suffix ".bz2" to the filename based on the standard behaviour of the "bzip2" program, but a future version may implement a more complex mapping if a new widely used naming pattern emerges.

Parameters:

filename - name of a file

Returns:

name of the corresponding compressed file