Package edu.wisc.library.ocfl.core.util

Class MultiDigestInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

edu.wisc.library.ocfl.core.util.MultiDigestInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class MultiDigestInputStream
extends FilterInputStream

Input stream that is able to calculate multiple digests concurrently

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Method Summary

Modifier and Type	Method	Description
static MultiDigestInputStream	create(InputStream inputStream, Collection<DigestAlgorithm> digestAlgorithms)	Creates a new MultiDigestInputStream
Map<DigestAlgorithm,String>	getResults()	Returns the computed digests.

Methods inherited from class java.io.FilterInputStream

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

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, transferTo

Methods inherited from class java.lang.Object

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

Method Detail

create

public static MultiDigestInputStream create(InputStream inputStream,
                                            Collection<DigestAlgorithm> digestAlgorithms)

Creates a new MultiDigestInputStream

Parameters:

inputStream - the stream to wrap

digestAlgorithms - the algorithms to compute

Returns:

the wrapped stream

getResults

public Map<DigestAlgorithm,String> getResults()

Returns the computed digests. This method should only be called ONCE after the stream has been consumed.

Returns:

the hex encoded computed digests