Package org.mycore.common.content.streams

Class MCRMD5InputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.security.DigestInputStream

org.mycore.common.content.streams.MCRMD5InputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class MCRMD5InputStream
extends DigestInputStream

Builds an MD5 checksum String while content goes through this input stream.

Author:

Frank Lützenkirchen

Field Summary

Fields inherited from class java.security.DigestInputStream

digest

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
MCRMD5InputStream(InputStream in)

Method Summary

Modifier and Type	Method	Description
static MessageDigest	buildMD5Digest()	Builds a MessageDigest instance for MD5 checksum computation.
byte[]	getMD5()	Returns the MD5 message digest that has been built during reading of the underlying input stream.
String	getMD5String()	Returns the MD5 checksum as a String
static String	getMD5String(byte[] digest)	Given an MD5 message digest, returns the MD5 checksum as a String

Methods inherited from class java.security.DigestInputStream

getMessageDigest, on, read, read, setMessageDigest, toString

Methods inherited from class java.io.FilterInputStream

available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Details

MCRMD5InputStream

public MCRMD5InputStream(InputStream in)
                  throws MCRException

Throws:

MCRException

Method Details

getMD5

public byte[] getMD5()

Returns the MD5 message digest that has been built during reading of the underlying input stream.

Returns:

the MD5 message digest checksum of all bytes that have been read

getMD5String

public String getMD5String()

Returns the MD5 checksum as a String

Returns:

the MD5 checksum as a String of hex digits

getMD5String

public static String getMD5String(byte[] digest)

Given an MD5 message digest, returns the MD5 checksum as a String

Returns:

the MD5 checksum as a String of hex digits

buildMD5Digest

public static MessageDigest buildMD5Digest()

Builds a MessageDigest instance for MD5 checksum computation.

Throws:

MCRConfigurationException - if no java classes that support MD5 algorithm could be found