com.github.jinahya.simple.file.back

Class FileBackUtilities

java.lang.Object

com.github.jinahya.simple.file.back.FileBackUtilities

public final class FileBackUtilities
extends Object

A utility class for file back implementations.

Author:

Jin Kwon <jinahya_at_gmail.com>

Method Summary

Modifier and Type	Method and Description
static String	fileKeyToPathName(ByteBuffer fileKey, String digestAlgorithm, int tokenLength, String tokenDelimiter) Converts given file key to a path name.

Methods inherited from class java.lang.Object

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

Method Detail

fileKeyToPathName

public static String fileKeyToPathName(ByteBuffer fileKey,
                                       String digestAlgorithm,
                                       int tokenLength,
                                       String tokenDelimiter)
                                throws NoSuchAlgorithmException

Converts given file key to a path name.

Parameters:

fileKey - the file key to convert

digestAlgorithm - a message digest algorithm to hash.

tokenLength - the number of characters to split.

tokenDelimiter - the delimiter string used when joining split tokens.

Returns:

a path name.

Throws:

NoSuchAlgorithmException - if digestAlgorithm is unknown.