com.amazonaws.services.glacier.internal

Class TreeHashInputStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

com.amazonaws.services.glacier.internal.TreeHashInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class TreeHashInputStream
extends FilterInputStream

Filter input stream that enables tree hash computation on the bytes that it streams.

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
TreeHashInputStream(InputStream in)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
List<byte[]>	getChecksums() Returns the list of one-megabyte checksums for this input stream.
String	getTreeHash()
int	read()
int	read(byte[] b, int off, int len)

Methods inherited from class java.io.FilterInputStream

available, mark, markSupported, read, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

TreeHashInputStream

public TreeHashInputStream(InputStream in)
                    throws NoSuchAlgorithmException

Throws:

NoSuchAlgorithmException

Method Detail

getChecksums

public List<byte[]> getChecksums()
                          throws IOException

Returns the list of one-megabyte checksums for this input stream. Only valid once the stream has been closed.

Throws:

IOException - If the stream hasn't been closed.

getTreeHash

public String getTreeHash()
                   throws IOException

Throws:

IOException

read

public int read()
         throws IOException

Overrides:

read in class FilterInputStream

Throws:

IOException

read

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

Overrides:

read in class FilterInputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class FilterInputStream

Throws:

IOException