Package software.amazon.awssdk.auth.signer.internal.chunkedencoding

Class AwsSignedChunkedEncodingInputStream

java.lang.Object

java.io.InputStream

software.amazon.awssdk.core.io.SdkInputStream

software.amazon.awssdk.core.internal.io.AwsChunkedInputStream

software.amazon.awssdk.core.internal.io.AwsChunkedEncodingInputStream

software.amazon.awssdk.auth.signer.internal.chunkedencoding.AwsSignedChunkedEncodingInputStream

All Implemented Interfaces:

Closeable, AutoCloseable, Releasable

@SdkInternalApi
public final class AwsSignedChunkedEncodingInputStream
extends AwsChunkedEncodingInputStream

A wrapper of InputStream that implements chunked encoding.

Each chunk will be buffered for the calculation of the chunk signature which is added at the head of each chunk. The request signature and the chunk signatures will be assumed to be hex-encoded strings.

This class will use the mark() & reset() of the wrapped InputStream if they are supported, otherwise it will create a buffer for bytes read from the wrapped stream.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	AwsSignedChunkedEncodingInputStream.Builder

Field Summary

Fields inherited from class software.amazon.awssdk.core.internal.io.AwsChunkedEncodingInputStream

calculatedChecksum, checksumHeaderForTrailer, CRLF, FINAL_CHUNK, HEADER_COLON_SEPARATOR, isTrailingTerminated

Fields inherited from class software.amazon.awssdk.core.internal.io.AwsChunkedInputStream

currentChunkIterator, DEFAULT_CHUNK_SIZE, is, isAtStart, isTerminating, log, SKIP_BUFFER_SIZE, underlyingStreamBuffer

Method Summary

Modifier and Type	Method	Description
static AwsSignedChunkedEncodingInputStream.Builder	builder()
static int	calculateChecksumContentLength(Algorithm algorithm, String headerName, int signatureLength)
static long	calculateStreamContentLength(long originalLength, int signatureLength, AwsChunkedEncodingConfig config)
static long	calculateStreamContentLength(long originalLength, int signatureLength, AwsChunkedEncodingConfig config, boolean isTrailingChecksumCalculated)	Calculates the expected total length of signed payload chunked stream.
protected byte[]	createChecksumChunkHeader()
protected byte[]	createChunk(byte[] chunkData)
protected byte[]	createFinalChunk(byte[] finalChunk)
void	reset()

Methods inherited from class software.amazon.awssdk.core.internal.io.AwsChunkedEncodingInputStream

mark, read

Methods inherited from class software.amazon.awssdk.core.internal.io.AwsChunkedInputStream

getWrappedInputStream, markSupported, read, skip

Methods inherited from class software.amazon.awssdk.core.io.SdkInputStream

abort, abortIfNeeded, release

Methods inherited from class java.io.InputStream

available, close, read

Methods inherited from class java.lang.Object

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

Method Details

builder

public static AwsSignedChunkedEncodingInputStream.Builder builder()

calculateStreamContentLength

public static long calculateStreamContentLength(long originalLength,
 int signatureLength,
 AwsChunkedEncodingConfig config)

calculateStreamContentLength

public static long calculateStreamContentLength(long originalLength,
 int signatureLength,
 AwsChunkedEncodingConfig config,
 boolean isTrailingChecksumCalculated)

Calculates the expected total length of signed payload chunked stream.

Parameters:

originalLength - The length of the data

signatureLength - The length of a calculated signature, dependent on which AwsChunkSigner is used

config - The chunked encoding config determines the size of the chunks. Use the same values as when initializing the stream.

createFinalChunk

protected byte[] createFinalChunk(byte[] finalChunk)

Specified by:

createFinalChunk in class AwsChunkedEncodingInputStream

createChunk

protected byte[] createChunk(byte[] chunkData)

Specified by:

createChunk in class AwsChunkedEncodingInputStream

createChecksumChunkHeader

protected byte[] createChecksumChunkHeader()

Specified by:

createChecksumChunkHeader in class AwsChunkedEncodingInputStream

calculateChecksumContentLength

public static int calculateChecksumContentLength(Algorithm algorithm,
 String headerName,
 int signatureLength)

reset

public void reset()
           throws IOException

Overrides:

reset in class AwsChunkedEncodingInputStream

Throws:

IOException