org.codehaus.plexus.digest

Interface Digester

All Known Implementing Classes:

AbstractDigester, Md5Digester, Sha1Digester

public interface Digester

Create a digest for a file.

Author:

Brett Porter

Field Summary

Fields

Modifier and Type	Field and Description
static String	ROLE

Method Summary

Modifier and Type	Method and Description
String	calc(File file) Calculate a checksum for a file.
String	getAlgorithm() Get the algorithm used for the checksum.
String	getFilenameExtension() The filename extension for this digester.
void	verify(File file, String checksum) Verify that a checksum is correct.

Field Detail

ROLE

static final String ROLE

Method Detail

getAlgorithm

String getAlgorithm()

Get the algorithm used for the checksum.

Returns:

the algorithm

getFilenameExtension

String getFilenameExtension()

The filename extension for this digester.

Returns:

the filename extension.

calc

String calc(File file)
     throws DigesterException

Calculate a checksum for a file.

Parameters:

file - the file to calculate the checksum for

Returns:

the current checksum.

Throws:

DigesterException - if there was a problem computing the hashcode.

verify

void verify(File file,
            String checksum)
     throws DigesterException

Verify that a checksum is correct.

Parameters:

file - the file to compute the checksum for

checksum - the checksum to compare to

Throws:

DigesterException - if there was a problem computing the hashcode.