org.finra.herd.dao.helper

Class AwsHelper

java.lang.Object

org.finra.herd.dao.helper.AwsHelper

Direct Known Subclasses:

EmrHelper, EmrPricingHelper

@Component
public class AwsHelper
extends Object

A base helper class that provides AWS functions.

Field Summary

Fields

Modifier and Type	Field and Description
protected ConfigurationHelper	configurationHelper
protected HerdStringHelper	herdStringHelper
protected RetryPolicyFactory	retryPolicyFactory

Constructor Summary

Constructors

Constructor and Description
AwsHelper()

Method Summary

Modifier and Type	Method and Description
AwsParamsDto	getAwsParamsDto() Constructs awsParamsDto with AWS parameters.
com.amazonaws.ClientConfiguration	getClientConfiguration(AwsParamsDto awsParamsDto) Creates a client configuration object that contains client configuration options such as proxy settings and max retry attempts.
Double	getTransferRateInKilobytesPerSecond(Long totalBytesTransferred, Long durationMillis) Returns transfer rate in kBytes/s.
Double	getTransferRateInMegabitsPerSecond(Long totalBytesTransferred, Long durationMillis) Returns transfer rate in Mbit/s (Decimal prefix: 1 Mbit/s = 1,000,000 bit/s).

Methods inherited from class java.lang.Object

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

Field Detail

configurationHelper

@Autowired
protected ConfigurationHelper configurationHelper

herdStringHelper

@Autowired
protected HerdStringHelper herdStringHelper

retryPolicyFactory

@Autowired
protected RetryPolicyFactory retryPolicyFactory

Constructor Detail

AwsHelper

public AwsHelper()

Method Detail

getAwsParamsDto

public AwsParamsDto getAwsParamsDto()

Constructs awsParamsDto with AWS parameters.

Returns:

the AWS params DTO object.

getClientConfiguration

public com.amazonaws.ClientConfiguration getClientConfiguration(AwsParamsDto awsParamsDto)

Creates a client configuration object that contains client configuration options such as proxy settings and max retry attempts.

Parameters:

awsParamsDto - the AWS related parameters that contain optional proxy information

Returns:

the client configuration object

getTransferRateInKilobytesPerSecond

public Double getTransferRateInKilobytesPerSecond(Long totalBytesTransferred,
                                                  Long durationMillis)

Returns transfer rate in kBytes/s. Please note that bytes->kBytes and ms->seconds conversions cancel each other (both use conversion factor of 1000).

Parameters:

totalBytesTransferred - Number of bytes transferred.

durationMillis - Duration in milliseconds.

Returns:

the transfer rate in kBytes/s.

getTransferRateInMegabitsPerSecond

public Double getTransferRateInMegabitsPerSecond(Long totalBytesTransferred,
                                                 Long durationMillis)

Returns transfer rate in Mbit/s (Decimal prefix: 1 Mbit/s = 1,000,000 bit/s).

Parameters:

totalBytesTransferred - Number of bytes transferred.

durationMillis - Duration in milliseconds.

Returns:

the transfer rate in Mbit/s.