ro.isdc.wro.model.resource.util
Class AbstractDigesterHashBuilder

java.lang.Object
  ro.isdc.wro.model.resource.util.AbstractDigesterHashBuilder

All Implemented Interfaces:

HashBuilder

Direct Known Subclasses:

MD5HashBuilder, SHA1HashBuilder

public abstract class AbstractDigesterHashBuilder
extends Object
implements HashBuilder

Uses abstract digester for creating a hash.

Author:

Alex Objelean

Constructor Summary

AbstractDigesterHashBuilder()

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

AbstractDigesterHashBuilder

public AbstractDigesterHashBuilder()

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