com.ibm.cos.v2.http.auth.aws.internal.signer.util

Class ChecksumUtil

java.lang.Object

com.ibm.cos.v2.http.auth.aws.internal.signer.util.ChecksumUtil

public final class ChecksumUtil
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ChecksumUtil.ConstantChecksumAlgorithm An implementation of a ChecksumAlgorithm that will map to ConstantChecksum, which provides a constant checksum.

Method Summary

Modifier and Type	Method and Description
static String	checksumHeaderName(ChecksumAlgorithm checksumAlgorithm) Get the correct checksum header name based on the checksum-algorithm.
static Checksummer	checksummer(BaseSignRequest<?,? extends Identity> request, Boolean isPayloadSigningOverride)
static SdkChecksum	fromChecksumAlgorithm(ChecksumAlgorithm checksumAlgorithm) Gets the SdkChecksum object based on the given ChecksumAlgorithm.
static boolean	hasChecksumHeader(BaseSignRequest<?,? extends Identity> request)
static boolean	isEventStreaming(SdkHttpRequest request)
static boolean	isPayloadSigning(BaseSignRequest<?,? extends Identity> request)
static byte[]	longToByte(Long input)
static void	readAll(InputStream inputStream) Read the entirety of an input-stream - this is useful when the stream has side-effects (such as calculating a checksum) when it gets read.
static boolean	useChunkEncoding(boolean payloadSigningEnabled, boolean chunkEncodingEnabled, boolean isTrailingOrFlexible)

Methods inherited from class java.lang.Object

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

Method Detail

checksumHeaderName

public static String checksumHeaderName(ChecksumAlgorithm checksumAlgorithm)

Get the correct checksum header name based on the checksum-algorithm. This is required to be of the form x-amz-checksum-*, where '*' is alphanumeric checksum-algorithm-id in lower-case form. Examples include:

x-amz-checksum-sha256, x-amz-checksum-sha1, x-amz-checksum-crc32, x-amz-checksum-crc32c, x-amz-checksum-md5

fromChecksumAlgorithm

public static SdkChecksum fromChecksumAlgorithm(ChecksumAlgorithm checksumAlgorithm)

Gets the SdkChecksum object based on the given ChecksumAlgorithm.

readAll

public static void readAll(InputStream inputStream)

Read the entirety of an input-stream - this is useful when the stream has side-effects (such as calculating a checksum) when it gets read.

longToByte

public static byte[] longToByte(Long input)

hasChecksumHeader

public static boolean hasChecksumHeader(BaseSignRequest<?,? extends Identity> request)

useChunkEncoding

public static boolean useChunkEncoding(boolean payloadSigningEnabled,
                                       boolean chunkEncodingEnabled,
                                       boolean isTrailingOrFlexible)

isPayloadSigning

public static boolean isPayloadSigning(BaseSignRequest<?,? extends Identity> request)

isEventStreaming

public static boolean isEventStreaming(SdkHttpRequest request)

checksummer

public static Checksummer checksummer(BaseSignRequest<?,? extends Identity> request,
                                      Boolean isPayloadSigningOverride)