org.apache.commons.compress.compressors.zstandard

Class ZstdUtils

java.lang.Object

org.apache.commons.compress.compressors.zstandard.ZstdUtils

public class ZstdUtils
extends java.lang.Object

Utility code for the Zstandard compression format.

Since:

1.16

Method Summary

Modifier and Type	Method and Description
static boolean	isZstdCompressionAvailable() Are the classes required to support Zstandard compression available?
static boolean	matches(byte[] signature, int length) Checks if the signature matches what is expected for a Zstandard file.
static void	setCacheZstdAvailablity(boolean doCache) Whether to cache the result of the Zstandard for Java check.

Methods inherited from class java.lang.Object

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

Method Detail

isZstdCompressionAvailable

public static boolean isZstdCompressionAvailable()

Are the classes required to support Zstandard compression available?

Returns:

true if the classes required to support Zstandard compression are available

setCacheZstdAvailablity

public static void setCacheZstdAvailablity(boolean doCache)

Whether to cache the result of the Zstandard for Java check.

This defaults to false in an OSGi environment and true otherwise.

Parameters:

doCache - whether to cache the result

matches

public static boolean matches(byte[] signature,
                              int length)

Checks if the signature matches what is expected for a Zstandard file.

Parameters:

signature - the bytes to check

length - the number of bytes to check

Returns:

true if signature matches the Ztstandard or skippable frame magic bytes, false otherwise