com.mastfrog.util.streams

Class HashingOutputStream

java.lang.Object

java.io.OutputStream

java.io.FilterOutputStream

com.mastfrog.util.streams.HashingOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public final class HashingOutputStream
extends FilterOutputStream

Output stream which wraps another output stream and computes a cryptographic hash using some algorithm as the data arrives.

Author:

Tim Boudreau

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

Constructors

Constructor and Description
HashingOutputStream(String algorithm, OutputStream out)

Method Summary

Modifier and Type	Method and Description
void	close()
byte[]	getDigest()
String	getHashAsString()
static String	hashString(byte[] bytes)
static HashingOutputStream	sha1(OutputStream out)
void	write(int b)

Methods inherited from class java.io.FilterOutputStream

flush, write, write

Methods inherited from class java.lang.Object

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

Constructor Detail

HashingOutputStream

public HashingOutputStream(String algorithm,
                           OutputStream out)
                    throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

Method Detail

sha1

public static HashingOutputStream sha1(OutputStream out)
                                throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class FilterOutputStream

Throws:

IOException

getDigest

public byte[] getDigest()

write

public void write(int b)
           throws IOException

Overrides:

write in class FilterOutputStream

Throws:

IOException

getHashAsString

public String getHashAsString()
                       throws IOException

Throws:

IOException

hashString

public static String hashString(byte[] bytes)