com.perforce.p4java.impl.mapbased.rpc.func.helper
Class MD5Digester

java.lang.Object
  com.perforce.p4java.impl.mapbased.rpc.func.helper.MD5Digester

public class MD5Digester
extends Object

Provide MD5 digest methods for the rest of the RPC implementation. Basically just a wrapper around the normal Java stuff, with a useful added method to finalise the digest as a hex string.

Field Summary

static String

DIGEST_TYPE

Constructor Summary

MD5Digester()

Method Summary

String	digestAs32ByteHex() Return the finalised digest as a 32 byte hex string.
byte[]	digestAsBytes()
String	digestFileAs32ByteHex(File file) Return the results of digesting an arbitrary file with this digester.
String	digestFileAs32ByteHex(File file, Charset charset) Return the results of digesting an arbitrary file with this digester.
String	digestFileAs32ByteHex(File file, Charset charset, boolean convertLineEndings) Return the results of digesting an arbitrary file with this digester.
String	digestFileAs32ByteHex(File file, Charset charset, boolean convertLineEndings, ClientLineEnding clientLineEnding) Return the results of digesting an arbitrary file with this digester and a specific client line ending.
void	reset()
void	update(byte[] bytes)
void	update(byte[] bytes, int off, int len)
void	update(ByteBuffer byteBuf) NOTE: side effects!!
void	update(String str)

Methods inherited from class java.lang.Object

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

Field Detail

DIGEST_TYPE

public static final String DIGEST_TYPE

See Also:

Constant Field Values

Constructor Detail

MD5Digester

public MD5Digester()

Method Detail

reset

public void reset()

update

public void update(String str)

update

public void update(byte[] bytes)

update

public void update(byte[] bytes,
                   int off,
                   int len)

update

public void update(ByteBuffer byteBuf)

NOTE: side effects!!

digestAsBytes

public byte[] digestAsBytes()

digestAs32ByteHex

public String digestAs32ByteHex()

Return the finalised digest as a 32 byte hex string. It's important elsewhere and in the server that the string be exactly 32 bytes long, so we stitch it up if possible to make it that long...

digestFileAs32ByteHex

public String digestFileAs32ByteHex(File file,
                                    Charset charset)

Return the results of digesting an arbitrary file with this digester.

Returns null if it can't read or digest the file for whatever reason; otherwise the finalized digest is returned as a 32 byte hex string.

Parameters:

file -

charset -

Returns:

- computed digest or null if computation failed

digestFileAs32ByteHex

public String digestFileAs32ByteHex(File file,
                                    Charset charset,
                                    boolean convertLineEndings)

Return the results of digesting an arbitrary file with this digester.

Returns null if it can't read or digest the file for whatever reason; otherwise the finalized digest is returned as a 32 byte hex string.

Parameters:

file -

charset -

convertLineEndings -

Returns:

- computed digest or null if computation failed

digestFileAs32ByteHex

public String digestFileAs32ByteHex(File file,
                                    Charset charset,
                                    boolean convertLineEndings,
                                    ClientLineEnding clientLineEnding)

Return the results of digesting an arbitrary file with this digester and a specific client line ending.

Returns null if it can't read or digest the file for whatever reason; otherwise the finalized digest is returned as a 32 byte hex string.

Parameters:

file -

charset -

convertLineEndings -

clientLineEnding -

Returns:

- computed digest or null if computation failed

digestFileAs32ByteHex

public String digestFileAs32ByteHex(File file)

Return the results of digesting an arbitrary file with this digester.

Returns null if it can't read or digest the file for whatever reason; otherwise the finalized digest is returned as a 32 byte hex string.

Parameters:

file -

Returns:

- computed digest or null if computation failed