com.iijgio.dag.util

Class Md5Utils

java.lang.Object

com.iijgio.dag.util.Md5Utils

public class Md5Utils
extends Object

MD5 sumを計算するためのユーティリティ.

Constructor Summary

Constructors

Constructor and Description
Md5Utils()

Method Summary

Modifier and Type	Method and Description
static byte[]	computeMD5Hash(byte[] input) 引数のデータのMD5 Hashを計算し、バイト配列として返します。
static byte[]	computeMD5Hash(File file) Computes the MD5 of the given file.
static byte[]	computeMD5Hash(InputStream is) 引数のInput StreamデータのMD5 Hashを計算し、バイト配列として返します。
static String	md5AsBase64(byte[] input) Returns the MD5 in base64 for the given byte array.
static String	md5AsBase64(File file) Returns the MD5 in base64 for the given file.
static String	md5AsBase64(InputStream is) Returns the MD5 in base64 for the data from the given input stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

Md5Utils

public Md5Utils()

Method Detail

computeMD5Hash

public static byte[] computeMD5Hash(InputStream is)
                             throws IOException

引数のInput StreamデータのMD5 Hashを計算し、バイト配列として返します。

Parameters:

is - the is

Returns:

the byte [ ]

Throws:

IOException - the io exception

md5AsBase64

public static String md5AsBase64(InputStream is)
                          throws IOException

Returns the MD5 in base64 for the data from the given input stream. Note this method closes the given input stream upon completion.

Parameters:

is - the is

Returns:

the string

Throws:

IOException - the io exception

computeMD5Hash

public static byte[] computeMD5Hash(byte[] input)

引数のデータのMD5 Hashを計算し、バイト配列として返します。

Parameters:

input - the input

Returns:

the byte [ ]

md5AsBase64

public static String md5AsBase64(byte[] input)

Returns the MD5 in base64 for the given byte array.

Parameters:

input - the input

Returns:

the string

computeMD5Hash

public static byte[] computeMD5Hash(File file)
                             throws IOException

Computes the MD5 of the given file.

Parameters:

file - the file

Returns:

the byte [ ]

Throws:

IOException - the io exception

md5AsBase64

public static String md5AsBase64(File file)
                          throws IOException

Returns the MD5 in base64 for the given file.

Parameters:

file - the file

Returns:

the string

Throws:

IOException - the io exception