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

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) Returns client configuration options that might contain proxy settings set per specified AWS parameters DTO.
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

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)

Returns client configuration options that might contain proxy settings set per specified AWS parameters DTO.

Parameters:

awsParamsDto - the AWS params DTO object

Returns:

the client configuration options

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.