dev.vankka.dependencydownload.util

Class HashUtil

java.lang.Object

dev.vankka.dependencydownload.util.HashUtil

public final class HashUtil
extends java.lang.Object

A helper class to get standard hashes from MessageDigests and Files.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getFileHash(java.io.File file, java.lang.String algorithm) Gets the hash of the provided file
static java.lang.String	getHash(java.security.MessageDigest digest) Gets the hash from the provided MessageDigest.

Methods inherited from class java.lang.Object

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

Method Detail

getFileHash

public static java.lang.String getFileHash(java.io.File file,
                                           java.lang.String algorithm)
                                    throws java.security.NoSuchAlgorithmException,
                                           java.io.IOException

Gets the hash of the provided file

Parameters:

file - the file

algorithm - the hashing algorithm (used on MessageDigest.getInstance(String))

Returns:

the file's hash in standard format

Throws:

java.security.NoSuchAlgorithmException - if the provided algorithm couldn't be found

java.io.IOException - if reading the file was unsuccessful

getHash

public static java.lang.String getHash(java.security.MessageDigest digest)

Gets the hash from the provided MessageDigest.

Parameters:

digest - the message digest

Returns:

the hash in standard format