com.foxsmart.ic.io
Class CRC32File

java.lang.Object
  java.util.zip.CRC32
      com.foxsmart.ic.io.CRC32File

All Implemented Interfaces:

java.util.zip.Checksum

public class CRC32File
extends java.util.zip.CRC32

This class provides the ability to checksum a file. It provides the same functionality as CRC32File, but has been extended for file support.

Constructor Summary

CRC32File()
Constructs an CRC32File object

Method Summary

static void	main(java.lang.String[] args) Test Driver.
void	update(java.io.File file) Updates the checksum based on the passed in File.
void	update(java.lang.String filename) Updates the checksum based on the passed in Filename.

Methods inherited from class java.util.zip.CRC32

getValue, reset, update, update, update

Methods inherited from class java.lang.Object

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

Constructor Detail

CRC32File

public CRC32File()

Constructs an CRC32File object

Method Detail

update

public void update(java.io.File file)
            throws java.io.IOException,
                   java.net.UnknownServiceException,
                   java.io.FileNotFoundException

Updates the checksum based on the passed in File.

Parameters:

file - The file to checksum.

Throws:

java.io.FileNotFoundException - if the file specified could not be found

java.io.IOException - if the input stream could not be opened to the file.

java.net.UnknownServiceException - if the URL protocol does not support input

update

public void update(java.lang.String filename)
            throws java.io.IOException,
                   java.net.UnknownServiceException,
                   java.io.FileNotFoundException

Updates the checksum based on the passed in Filename.

Parameters:

filename - The filename of the file to checksum.

Throws:

java.io.FileNotFoundException - if the file specified could not be found

java.io.IOException - if the input stream could not be opened to the file.

java.net.UnknownServiceException - if the URL protocol does not support input

main

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

Test Driver.

Parameters:

args - the arguments