Package software.amazon.awssdk.core.internal.util

Class ChunkContentUtils

java.lang.Object

software.amazon.awssdk.core.internal.util.ChunkContentUtils

public final class ChunkContentUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CRLF
static final String	HEADER_COLON_SEPARATOR
static final String	LAST_CHUNK
static final long	LAST_CHUNK_LEN
static final String	ZERO_BYTE

Method Summary

Modifier and Type	Method	Description
static long	calculateChecksumTrailerLength(Algorithm algorithm, String headerName)	Calculates the content length for a given algorithm and header name.
static long	calculateChunkLength(long originalContentLength)	The chunk format is: chunk-size CRLF chunk-data CRLF.
static long	calculateStreamContentLength(long originalLength, long chunkSize)	Calculates the content length for data that is divided into chunks.
static ByteBuffer	createChecksumTrailer(String computedChecksum, String trailerHeader)	Creates Chunk encoded checksum trailer for a computedChecksum which is in Base64 encoded.
static ByteBuffer	createChunk(ByteBuffer chunkData, boolean isLastByte)	Creates ChunkEncoded data for an given chunk data.

Methods inherited from class java.lang.Object

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

Field Details

HEADER_COLON_SEPARATOR

public static final String HEADER_COLON_SEPARATOR

See Also:

• Constant Field Values

ZERO_BYTE

public static final String ZERO_BYTE

See Also:

• Constant Field Values

CRLF

public static final String CRLF

See Also:

• Constant Field Values

LAST_CHUNK

public static final String LAST_CHUNK

See Also:

• Constant Field Values

LAST_CHUNK_LEN

public static final long LAST_CHUNK_LEN

Method Details

calculateChunkLength

public static long calculateChunkLength(long originalContentLength)

The chunk format is: chunk-size CRLF chunk-data CRLF.

Parameters:

originalContentLength - Original Content length.

Returns:

the length of this chunk

calculateStreamContentLength

public static long calculateStreamContentLength(long originalLength,
 long chunkSize)

Calculates the content length for data that is divided into chunks.

Parameters:

originalLength - original content length.

chunkSize - chunk size

Returns:

Content length of the trailer that will be appended at the end.

calculateChecksumTrailerLength

public static long calculateChecksumTrailerLength(Algorithm algorithm,
 String headerName)

Calculates the content length for a given algorithm and header name.

Parameters:

algorithm - Algorithm used.

headerName - Header name.

Returns:

Content length of the trailer that will be appended at the end.

createChecksumTrailer

public static ByteBuffer createChecksumTrailer(String computedChecksum,
 String trailerHeader)

Creates Chunk encoded checksum trailer for a computedChecksum which is in Base64 encoded.

Parameters:

computedChecksum - Base64 encoded computed checksum.

trailerHeader - Header for the checksum data in the trailer.

Returns:

Chunk encoded checksum trailer with given header.

createChunk

public static ByteBuffer createChunk(ByteBuffer chunkData,
 boolean isLastByte)

Creates ChunkEncoded data for an given chunk data.

Parameters:

chunkData - chunk data that needs to be converted to chunk encoded format.

isLastByte - if true then additional CRLF will not be appended.

Returns:

Chunk encoded format of a given data.