Package com.amazon.neptune.gremlin.driver.sigv4

Class ChainedSigV4PropertiesProvider

java.lang.Object

com.amazon.neptune.gremlin.driver.sigv4.ChainedSigV4PropertiesProvider

public class ChainedSigV4PropertiesProvider
extends Object

A chained Sig4Properties provider. It tries to get the properties from environment variables and if not found looks in Java system properties.

Constructor Summary

Constructors

Constructor	Description
ChainedSigV4PropertiesProvider()	Creates an instance with default suppliers.
ChainedSigV4PropertiesProvider(Supplier<SigV4Properties>[] providers)	Creates an instance with the supplied chain of SigV4Properties providers.

Method Summary

Modifier and Type	Method	Description
SigV4Properties	getSigV4Properties()	Gets the SigV4Properties from the chain of lambdas.
SigV4Properties	getSigV4PropertiesFromEnv()	Reads the SigV4 properties from the environment properties and constructs the SigV4Properties object.
SigV4Properties	getSigV4PropertiesFromSystem()	Reads the SigV4 properties from the system properties and constructs the SigV4Properties object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChainedSigV4PropertiesProvider

public ChainedSigV4PropertiesProvider()

Creates an instance with default suppliers.

ChainedSigV4PropertiesProvider

public ChainedSigV4PropertiesProvider(Supplier<SigV4Properties>[] providers)

Creates an instance with the supplied chain of SigV4Properties providers.

Parameters:

providers - the chain of sigv4 properties provider.

Method Detail

getSigV4Properties

public SigV4Properties getSigV4Properties()
                                   throws SigV4PropertiesNotFoundException

Gets the SigV4Properties from the chain of lambdas.

Returns:

the SigV4Properties.

Throws:

SigV4PropertiesNotFoundException - when SigV4 properties are not set.

getSigV4PropertiesFromEnv

public SigV4Properties getSigV4PropertiesFromEnv()
                                          throws SigV4PropertiesNotFoundException

Reads the SigV4 properties from the environment properties and constructs the SigV4Properties object.

Returns:

the SigV4Properties constructed from system properties.

Throws:

SigV4PropertiesNotFoundException - when properties are not found in the environment variables.

getSigV4PropertiesFromSystem

public SigV4Properties getSigV4PropertiesFromSystem()

Reads the SigV4 properties from the system properties and constructs the SigV4Properties object.

Returns:

the SigV4Properties constructed from system properties.

Throws:

SigV4PropertiesNotFoundException - when the properties are not found in the system properties.