cluster5.shared.utils
Class HashCalculator

java.lang.Object
  cluster5.shared.utils.HashCalculator

public class HashCalculator
extends java.lang.Object

Nested Class Summary

static class

HashCalculator.Algorithms

Constructor Summary

HashCalculator()

Method Summary

void	addListener(HashCalculatorProgressListener listener) Adds a listener which will be updated on the progress of hashing a file/stream.
java.lang.String	getHash(java.io.File file, HashCalculator.Algorithms algorithm) Calculates hash of the specified file using the algorithm.
java.lang.String	getHash(java.io.InputStream inputStream, HashCalculator.Algorithms algorithm) Calculates hash of the data passed in the input stream using the specified algorithm.
java.lang.String	getHash(java.lang.String message, HashCalculator.Algorithms algorithm) Calculates hash of the message using the specified algorithm.
static void	main(java.lang.String[] args)
void	removeListener(HashCalculator listener)

Methods inherited from class java.lang.Object

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

Constructor Detail

HashCalculator

public HashCalculator()

Method Detail

addListener

public void addListener(HashCalculatorProgressListener listener)

Adds a listener which will be updated on the progress of hashing a file/stream.

Parameters:

listener - a listener to be added

removeListener

public void removeListener(HashCalculator listener)

Parameters:

listener - a listener to be removed

getHash

public java.lang.String getHash(java.lang.String message,
                                HashCalculator.Algorithms algorithm)

Calculates hash of the message using the specified algorithm.

Parameters:

message -

algorithm -

Returns:

hash of the message or null if something went wrong

getHash

public java.lang.String getHash(java.io.InputStream inputStream,
                                HashCalculator.Algorithms algorithm)

Calculates hash of the data passed in the input stream using the specified algorithm. Does not notify registered listeners on hash calculation progress.

Parameters:

inputStream -

algorithm -

Returns:

hash of the data or null if something went wrong.

getHash

public java.lang.String getHash(java.io.File file,
                                HashCalculator.Algorithms algorithm)

Calculates hash of the specified file using the algorithm. While the hash is calculated, the registered listeners are notified on the progress.

Parameters:

file -

algorithm -

Returns:

hash of the file or null if something went wrong.

main

public static void main(java.lang.String[] args)
                 throws java.io.IOException

Parameters:

args -

Throws:

java.io.IOException