ChecksumProvider (AWS Java SDK :: Checksums 2.42.20 API)

java.lang.Object
- software.amazon.awssdk.checksums.internal.ChecksumProvider

```
@SdkInternalApi
public final class ChecksumProvider
extends Object
```
Utility class providing implementations of checksums.
Supports the following implementations for CRC32C:
- Java-based CRC32C (Java 9+)
- CRT-based CRC32C (using AWS CRT library)
- SDK-based CRC32C (fallback)
Supports CRT-based implementations for CRC64NVME and XXHASH algorithms (using AWS CRT library).

For internal use only (SdkInternalApi).

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static SdkChecksum`	`crc32cImplementation()`	Tries to create a Java 9-based CRC32C checksum.
`static SdkChecksum`	`xxHash128CrtImplementation()`	Creates an instance of the CRT-based XXHASH128 checksum using AWS's CRT library.
`static SdkChecksum`	`xxHash3CrtImplementation()`	Creates an instance of the CRT-based XXHASH3 checksum using AWS's CRT library.
`static SdkChecksum`	`xxHash64CrtImplementation()`	Creates an instance of the CRT-based XXHASH64 checksum using AWS's CRT library.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - crc32cImplementation
```
public static SdkChecksum crc32cImplementation()
```
    Tries to create a Java 9-based CRC32C checksum. If it's not available, it tries to create a CRT-based checksum. If both are not available, it falls back to an SDK-based CRC32C checksum.
    
    Returns:
    
    An instance of SdkChecksum, based on the first available option.
  - xxHash64CrtImplementation
```
public static SdkChecksum xxHash64CrtImplementation()
```
    Creates an instance of the CRT-based XXHASH64 checksum using AWS's CRT library.
    
    Returns:
    
    An SdkChecksum instance for XXHASH64.
    
    Throws:
    
    RuntimeException - if the CRT implementation is not available.
  - xxHash3CrtImplementation
```
public static SdkChecksum xxHash3CrtImplementation()
```
    Creates an instance of the CRT-based XXHASH3 checksum using AWS's CRT library.
    
    Returns:
    
    An SdkChecksum instance for XXHASH3.
    
    Throws:
    
    RuntimeException - if the CRT implementation is not available.
  - xxHash128CrtImplementation
```
public static SdkChecksum xxHash128CrtImplementation()
```
    Creates an instance of the CRT-based XXHASH128 checksum using AWS's CRT library.
    
    Returns:
    
    An SdkChecksum instance for XXHASH128.
    
    Throws:
    
    RuntimeException - if the CRT implementation is not available.