org.apache.maven.wagon.observers
Class ChecksumObserver

java.lang.Object
  org.apache.maven.wagon.observers.ChecksumObserver

All Implemented Interfaces:

TransferListener

public class ChecksumObserver
extends Object
implements TransferListener

TransferListeners which computes MD5 checksum on the fly when files are transfered.

Version:

$Id: ChecksumObserver.java 1173669 2011-09-21 14:25:26Z olamy $

Author:

Michal Maczka

Constructor Summary

ChecksumObserver()

ChecksumObserver(String algorithm)

Method Summary

void	debug(String message)
protected String	encode(byte[] binaryData) Encodes a 128 bit or 160-bit byte array into a String.
String	getActualChecksum() Returns md5 checksum which was computed during transfer
void	transferCompleted(TransferEvent transferEvent)
void	transferError(TransferEvent transferEvent)
void	transferInitiated(TransferEvent transferEvent)
void	transferProgress(TransferEvent transferEvent, byte[] buffer, int length)
void	transferStarted(TransferEvent transferEvent)

Methods inherited from class java.lang.Object

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

Constructor Detail

ChecksumObserver

public ChecksumObserver()
                 throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

ChecksumObserver

public ChecksumObserver(String algorithm)
                 throws NoSuchAlgorithmException

Parameters:

algorithm - One of the algorithms supported by JDK: MD5, MD2 or SHA-1

Throws:

NoSuchAlgorithmException

Method Detail

transferInitiated

public void transferInitiated(TransferEvent transferEvent)

Specified by:

transferInitiated in interface TransferListener

transferStarted

public void transferStarted(TransferEvent transferEvent)

Specified by:

transferStarted in interface TransferListener

See Also:

TransferListener.transferStarted(org.apache.maven.wagon.events.TransferEvent)

transferProgress

public void transferProgress(TransferEvent transferEvent,
                             byte[] buffer,
                             int length)

Specified by:

transferProgress in interface TransferListener

See Also:

TransferListener.transferProgress(org.apache.maven.wagon.events.TransferEvent, byte[], int)

transferCompleted

public void transferCompleted(TransferEvent transferEvent)

Specified by:

transferCompleted in interface TransferListener

transferError

public void transferError(TransferEvent transferEvent)

Specified by:

transferError in interface TransferListener

debug

public void debug(String message)

Specified by:

debug in interface TransferListener

getActualChecksum

public String getActualChecksum()

Returns md5 checksum which was computed during transfer

Returns:

encode

protected String encode(byte[] binaryData)

Encodes a 128 bit or 160-bit byte array into a String.

Parameters:

binaryData - Array containing the digest

Returns:

Encoded hex string, or null if encoding failed