org.apache.maven.wagon.observers

Class ChecksumObserver

java.lang.Object

org.apache.maven.wagon.observers.ChecksumObserver

All Implemented Interfaces:

TransferListener

public class ChecksumObserver
extends java.lang.Object
implements TransferListener

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

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	actualChecksum
private java.security.MessageDigest	digester

Constructor Summary

Constructors

Constructor and Description
ChecksumObserver()
ChecksumObserver(java.lang.String algorithm)

Method Summary

Modifier and Type	Method and Description
void	debug(java.lang.String message)
protected java.lang.String	encode(byte[] binaryData) Encodes a 128 bit or 160-bit byte array into a String.
java.lang.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

Field Detail

digester

private java.security.MessageDigest digester

actualChecksum

private java.lang.String actualChecksum

Constructor Detail

ChecksumObserver

public ChecksumObserver()
                 throws java.security.NoSuchAlgorithmException

Throws:

java.security.NoSuchAlgorithmException

ChecksumObserver

public ChecksumObserver(java.lang.String algorithm)
                 throws java.security.NoSuchAlgorithmException

Parameters:

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

Throws:

java.security.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(java.lang.String message)

Specified by:

debug in interface TransferListener

getActualChecksum

public java.lang.String getActualChecksum()

Returns md5 checksum which was computed during transfer

Returns:

encode

protected java.lang.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