org.springframework.util

Class UpdateMessageDigestInputStream

java.lang.Object

java.io.InputStream

org.springframework.util.UpdateMessageDigestInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

Direct Known Subclasses:

FastByteArrayOutputStream.FastByteArrayInputStream

abstract class UpdateMessageDigestInputStream
extends java.io.InputStream

Extension of InputStream that allows for optimized implementations of message digesting.

Since:

4.2

Author:

Craig Andrews

Constructor Summary

Constructors

Constructor and Description
UpdateMessageDigestInputStream()

Method Summary

Modifier and Type	Method and Description
void	updateMessageDigest(java.security.MessageDigest messageDigest) Update the message digest with the rest of the bytes in this stream.
void	updateMessageDigest(java.security.MessageDigest messageDigest, int len) Update the message digest with the next len bytes in this stream.

Methods inherited from class java.io.InputStream

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

Methods inherited from class java.lang.Object

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

Constructor Detail

UpdateMessageDigestInputStream

UpdateMessageDigestInputStream()

Method Detail

updateMessageDigest

public void updateMessageDigest(java.security.MessageDigest messageDigest)
                         throws java.io.IOException

Update the message digest with the rest of the bytes in this stream.

Using this method is more optimized since it avoids creating new byte arrays for each call.

Parameters:

messageDigest - the message digest to update

Throws:

java.io.IOException - when propagated from InputStream.read()

updateMessageDigest

public void updateMessageDigest(java.security.MessageDigest messageDigest,
                                int len)
                         throws java.io.IOException

Update the message digest with the next len bytes in this stream.

Using this method is more optimized since it avoids creating new byte arrays for each call.

Parameters:

messageDigest - the message digest to update

len - how many bytes to read from this stream and use to update the message digest

Throws:

java.io.IOException - when propagated from InputStream.read()