com.peterphi.std.crypto.digest.impl

Class CRC32Digester

java.lang.Object

com.peterphi.std.crypto.digest.impl.CRC32Digester

All Implemented Interfaces:

IDigester

public class CRC32Digester
extends java.lang.Object
implements IDigester

Produces CRC32 checksums (in hexidecimal) using the java.util.zip CRC32 class

Constructor Summary

Constructors

Constructor and Description
CRC32Digester()

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.String	digest(byte[] content) Produces the digest of a byte array
java.lang.String	digest(java.nio.channels.ByteChannel channel) Digests a ByteChannel; the performance of this method may possibly be higher (but it may also be slightly slower) than that of the InputStream method
java.lang.String	digest(java.io.File file) Produces the digest of a File
java.lang.String	digest(java.io.InputStream is) Produces the digest of an InputStream
static CRC32Digester	getInstance()
protected java.util.zip.Checksum	newChecksum()

Methods inherited from class java.lang.Object

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

Constructor Detail

CRC32Digester

public CRC32Digester()

Method Detail

getInstance

public static CRC32Digester getInstance()

digest

public java.lang.String digest(byte[] content)

Description copied from interface: IDigester

Produces the digest of a byte array

Specified by:

digest in interface IDigester

Returns:

digest

public java.lang.String digest(java.io.File file)
                        throws java.io.IOException

Description copied from interface: IDigester

Produces the digest of a File

Specified by:

digest in interface IDigester

Returns:

Throws:

java.io.IOException

See Also:

IDigester.digest(java.io.File)

digest

public java.lang.String digest(java.io.InputStream is)
                        throws java.io.IOException

Description copied from interface: IDigester

Produces the digest of an InputStream

Specified by:

digest in interface IDigester

Returns:

Throws:

java.io.IOException

digest

public java.lang.String digest(java.nio.channels.ByteChannel channel)
                        throws java.io.IOException

Description copied from interface: IDigester

Digests a ByteChannel; the performance of this method may possibly be higher (but it may also be slightly slower) than that of the InputStream method

Specified by:

digest in interface IDigester

Returns:

Throws:

java.io.IOException

newChecksum

protected java.util.zip.Checksum newChecksum()