Package org.dspace.curate

Class Utils

java.lang.Object

org.dspace.curate.Utils

public class Utils
extends Object

Utils contains a few commonly occurring methods.

Author:

richardrodgers

Method Summary

Modifier and Type	Method	Description
static String	checksum(File file, String algorithm)	Calculates and returns a checksum for the passed file using the passed algorithm.
static String	checksum(InputStream in, String algorithm)	Calculates and returns a checksum for the passed IO stream using the passed algorithm.
static void	copy(File inFile, File outFile)	Performs a buffered copy from one file into another.
static void	copy(InputStream in, OutputStream out)	Performs a buffered copy from one IO stream into another.
static String	toHex(byte[] data)

Methods inherited from class java.lang.Object

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

Method Detail

checksum

public static String checksum(File file,
                              String algorithm)
                       throws IOException

Calculates and returns a checksum for the passed file using the passed algorithm.

Parameters:

file - file on which to calculate checksum

algorithm - string for algorithm: 'MD5', 'SHA1', etc

Returns:

checksum string of the calculated checksum

Throws:

IOException - if IO error

checksum

public static String checksum(InputStream in,
                              String algorithm)
                       throws IOException

Calculates and returns a checksum for the passed IO stream using the passed algorithm.

Parameters:

in - input stream on which to calculate checksum

algorithm - string for algorithm: 'MD5', 'SHA1', etc

Returns:

checksum string of the calculated checksum

Throws:

IOException - if IO error

toHex

public static String toHex(byte[] data)

copy

public static void copy(File inFile,
                        File outFile)
                 throws IOException

Performs a buffered copy from one file into another.

Parameters:

inFile - input file

outFile - output file

Throws:

IOException - if IO error

copy

public static void copy(InputStream in,
                        OutputStream out)
                 throws IOException

Performs a buffered copy from one IO stream into another. Note that stream closure is responsibility of caller.

Parameters:

in - input stream

out - output stream

Throws:

IOException - if IO error