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Class HttpStorageRpcHasherHelper (2.70.0)
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public final class HttpStorageRpcHasherHelper
Internal utility class to perform client-side CRC32C checksum validation on downloaded data
specifically for the HttpStorageRpc transport layer.
Static Fields
INSTANCE
public static final HttpStorageRpcHasherHelper INSTANCE
Methods
shouldValidate(HttpResponse response)
public boolean shouldValidate ( HttpResponse response )
Determines if client-side validation should be performed on the downloaded object.
Parameter
Name Description
responsecom.google.api.client.http.HttpResponse
validate(HttpResponse response, OutputStream activeStream)
public void validate ( HttpResponse response , OutputStream activeStream )
Validates the downloaded output stream against GCS's expected base64-encoded value in response
headers.
Parameters
Name Description
responsecom.google.api.client.http.HttpResponse
activeStreamOutputStream
Exceptions
Type Description
IOException if the checksums do not match.
validateCrc32c(String expectedCrc32cBase64, byte[] content)
public void validateCrc32c ( String expectedCrc32cBase64 , byte [] content )
Validates a downloaded raw byte array against GCS's expected base64-encoded value.
Parameters
Name Description
expectedCrc32cBase64String
contentbyte []
Exceptions
Type Description
IOException if the checksums do not match.
validateCrc32c(String expectedCrc32cBase64, int calculatedCrc32c)
public void validateCrc32c ( String expectedCrc32cBase64 , int calculatedCrc32c )
Validates a calculated CRC32C value against GCS's expected base64-encoded value.
Parameters
Name Description
expectedCrc32cBase64String
calculatedCrc32cint
Exceptions
Type Description
IOException if the checksums do not match.
wrap(OutputStream out, boolean isChecksumValidationEnabled)
public OutputStream wrap ( OutputStream out , boolean isChecksumValidationEnabled )
Returns a wrapping output stream that hashes the written content if validation is enabled, or
the original output stream otherwise.
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Last updated 2026-07-31 UTC.
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