org.codehaus.plexus.digest
Interface Digester

All Known Implementing Classes:

AbstractDigester

public interface Digester

Create a digest for a file.

Author:

Brett Porter

Field Summary

static java.lang.String

ROLE

Method Summary

java.lang.String	calc(java.io.File file) Calculate a checksum for a file.
java.lang.String	getAlgorithm() Get the algorithm used for the checksum.
void	verify(java.io.File file, java.lang.String checksum) Verify that a checksum is correct.

Field Detail

ROLE

public static final java.lang.String ROLE

Method Detail

getAlgorithm

public java.lang.String getAlgorithm()

Get the algorithm used for the checksum.

Returns:

the algorithm

calc

public java.lang.String calc(java.io.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

public void verify(java.io.File file,
                   java.lang.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.