io.delta.storage.utils

Class ReflectionUtils

java.lang.Object

io.delta.storage.utils.ReflectionUtils

public class ReflectionUtils
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
ReflectionUtils()

Method Summary

Modifier and Type	Method and Description
static com.amazonaws.auth.AWSCredentialsProvider	createAwsCredentialsProvider(java.lang.String credentialsProviderClassName, org.apache.hadoop.conf.Configuration hadoopConf) Create AWS credentials provider from given provider classname and Configuration.

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionUtils

public ReflectionUtils()

Method Detail

createAwsCredentialsProvider

public static com.amazonaws.auth.AWSCredentialsProvider createAwsCredentialsProvider(java.lang.String credentialsProviderClassName,
                                                                                     org.apache.hadoop.conf.Configuration hadoopConf)
                                                                              throws java.lang.ReflectiveOperationException

Create AWS credentials provider from given provider classname and Configuration. It first check if AWS Credentials Provider class has constructor Hadoop configuration as parameter. If yes - create instance of class using this constructor. If no - create instance with empty parameters constructor.

Parameters:

credentialsProviderClassName - Fully qualified name of the desired credentials provider class.

hadoopConf - Hadoop configuration, used to create instance of AWS credentials provider, if supported.

Returns:

AWSCredentialsProvider object, instantiated from the class @see {credentialsProviderClassName}

Throws:

java.lang.ReflectiveOperationException - When AWS credentials provider constrictor do not matched. Means class has neither an constructor with no args as input nor constructor with only Hadoop configuration as argument.