Package com.levigo.jadice.server.util.checksum

Class ChecksumLookup

java.lang.Object

com.levigo.jadice.server.util.checksum.ChecksumLookup

public final class ChecksumLookup
extends Object

Utility class to generate a MessageDigest with the given algorithm name because CRC32 and Adler32 are not cryptographic digests (and therefore not available via MessageDigest.getInstance(String) but sufficient for checksum generation.

Since:

jadice server 4.3.1.0

See Also:

MessageDigest

Method Summary

Modifier and Type	Method	Description
static MessageDigest	getInstance(String algorithm)	Retrieve a MessageDigest that implements the given algorithm name.

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static MessageDigest getInstance(String algorithm)
                                 throws NoSuchAlgorithmException

Retrieve a MessageDigest that implements the given algorithm name. In addition to MessageDigest the following values are allowed:

CRC32

returns a CRC32Adapter.

Adler32

returns an Adler32Adapter.

Parameters:

algorithm - the name of the algorithm requested

Returns:

a Message Digest object implementing the specified algorithm.

Throws:

NoSuchAlgorithmException - if the algorithm is not available in the caller's environment.

See Also:

MessageDigest.getInstance(String)