org.apache.james.jdkim.canon
Class DigestOutputStream

java.lang.Object
  java.io.OutputStream
      java.io.FilterOutputStream
          org.apache.james.jdkim.canon.DigestOutputStream

All Implemented Interfaces:

Closeable, Flushable

public class DigestOutputStream
extends FilterOutputStream

DigestOutputStream is used as a filter stream or as the ending stream in order to calculate a digest of a stream.

Field Summary

Fields inherited from class java.io.FilterOutputStream

out

Constructor Summary

DigestOutputStream(MessageDigest md)

DigestOutputStream(MessageDigest md, OutputStream out)

Method Summary

void	close()
void	flush()
byte[]	getDigest()
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int arg0)

Methods inherited from class java.lang.Object

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

Constructor Detail

DigestOutputStream

public DigestOutputStream(MessageDigest md)

DigestOutputStream

public DigestOutputStream(MessageDigest md,
                          OutputStream out)

Method Detail

write

public void write(int arg0)
           throws IOException

Overrides:

write in class FilterOutputStream

Throws:

IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

Overrides:

write in class FilterOutputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class FilterOutputStream

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Overrides:

flush in class FilterOutputStream

Throws:

IOException

write

public void write(byte[] b)
           throws IOException

Overrides:

write in class FilterOutputStream

Throws:

IOException

getDigest

public byte[] getDigest()

Returns:

the stream digest as a byte array