ro.isdc.wro.model.resource.support.hash
Class AbstractDigesterHashStrategy

java.lang.Object
  ro.isdc.wro.model.resource.support.hash.AbstractDigesterHashStrategy

All Implemented Interfaces:

HashBuilder, HashStrategy

Direct Known Subclasses:

MD5HashStrategy, SHA1HashStrategy

public abstract class AbstractDigesterHashStrategy
extends Object
implements HashStrategy

Uses abstract digester for creating a hash.

Author:

Alex Objelean

Constructor Summary

AbstractDigesterHashStrategy()

Method Summary

String	getHash(InputStream input)
protected abstract MessageDigest	newMessageDigest()

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractDigesterHashStrategy

public AbstractDigesterHashStrategy()

Method Detail

getHash

public String getHash(InputStream input)
               throws IOException

Specified by:

getHash in interface HashBuilder

Parameters:

input - to digest.

Returns:

the hash of the content.

Throws:

IOException - if there was an error during reading the stream content.

newMessageDigest

protected abstract MessageDigest newMessageDigest()
                                           throws NoSuchAlgorithmException

Returns:

MessageDigest used for hashing.

Throws:

NoSuchAlgorithmException