org.apache.commons.compress.compressors.gzip
Class GzipUtils

java.lang.Object
  org.apache.commons.compress.compressors.gzip.GzipUtils

public class GzipUtils
extends Object

Utility code for the gzip compression format.

This class is thread-safe

Method Summary

static String	getCompressedFilename(String filename) Maps the given filename to the name that the file should have after compression with gzip.
static String	getUncompressedFilename(String filename) Maps the given name of a gzip-compressed file to the name that the file should have after uncompression.
static boolean	isCompressedFilename(String filename) Detects common gzip suffixes in the given filename.

Methods inherited from class java.lang.Object

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

Method Detail

isCompressedFilename

public static boolean isCompressedFilename(String filename)

Detects common gzip suffixes in the given filename.

Parameters:

filename - name of a file

Returns:

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

getUncompressedFilename

public static String getUncompressedFilename(String filename)

Maps the given name of a gzip-compressed file to the name that the file should have after uncompression. Commonly used file type specific suffixes like ".tgz" or ".svgz" are automatically detected and correctly mapped. For example the name "package.tgz" is mapped to "package.tar". And any filenames with the generic ".gz" suffix (or any other generic gzip suffix) is mapped to a name without that suffix. If no gzip 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 String getCompressedFilename(String filename)

Maps the given filename to the name that the file should have after compression with gzip. Common file types with custom suffixes for compressed versions are automatically detected and correctly mapped. For example the name "package.tar" is mapped to "package.tgz". If no custom mapping is applicable, then the default ".gz" suffix is appended to the filename.

Parameters:

filename - name of a file

Returns:

name of the corresponding compressed file