ChecksumObserver (Apache Maven Wagon

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.

Author:

Michal Maczka

Constructor Summary

Constructors
Constructor and Description

ChecksumObserver()

ChecksumObserver(String algorithm)

Constructors
Constructor and Description
`ChecksumObserver()`
`ChecksumObserver(String algorithm)`

Method Summary

Methods
Modifier and Type	Method and Description
`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

Class ChecksumObserver

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

ChecksumObserver

ChecksumObserver

Method Detail

transferInitiated

transferStarted

transferProgress

transferCompleted

transferError

debug

getActualChecksum

encode