org.apache.hadoop.fs.s3a.adapter

Class AwsV1BindingSupport

java.lang.Object

org.apache.hadoop.fs.s3a.adapter.AwsV1BindingSupport

public final class AwsV1BindingSupport
extends Object

Binding support; the sole way which the rest of the code should instantiate v1 SDK libraries. Uses this class's Classloader for its analysis/loading.

Field Summary

Fields

Modifier and Type	Field and Description
static String	CREDENTIAL_PROVIDER_CLASSNAME V1 credential provider classname: .

Method Summary

Modifier and Type	Method and Description
static software.amazon.awssdk.auth.credentials.AwsCredentialsProvider	createAWSV1CredentialProvider(org.apache.hadoop.conf.Configuration conf, String className, URI uri, String key) Create an AWS credential provider from its class by using reflection.
static boolean	isAwsV1SdkAvailable() Is the AWS v1 SDK available?

Methods inherited from class java.lang.Object

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

Field Detail

CREDENTIAL_PROVIDER_CLASSNAME

public static final String CREDENTIAL_PROVIDER_CLASSNAME

V1 credential provider classname: .

See Also:

Constant Field Values

Method Detail

isAwsV1SdkAvailable

public static boolean isAwsV1SdkAvailable()

Is the AWS v1 SDK available?

Returns:

true if it was found in the classloader

createAWSV1CredentialProvider

public static software.amazon.awssdk.auth.credentials.AwsCredentialsProvider createAWSV1CredentialProvider(org.apache.hadoop.conf.Configuration conf,
                                                                                                           String className,
                                                                                                           @Nullable
                                                                                                           URI uri,
                                                                                                           String key)
                                                                                                    throws IOException

Create an AWS credential provider from its class by using reflection. The class must implement one of the following means of construction, which are attempted in order:

1. a public constructor accepting java.net.URI and org.apache.hadoop.conf.Configuration
2. a public constructor accepting org.apache.hadoop.conf.Configuration
3. a public static method named getInstance that accepts no arguments and returns an instance of com.amazonaws.auth.AWSCredentialsProvider, or
4. a public default constructor.

Parameters:

conf - configuration

className - credential classname

uri - URI of the FS

key - configuration key to use

Returns:

the instantiated class

Throws:

InstantiationIOException - on any instantiation failure, including v1 SDK not found

IOException - anything else.