io.prestosql.plugin.hive.aws

Class AwsCurrentRegionHolder

java.lang.Object

io.prestosql.plugin.hive.aws.AwsCurrentRegionHolder

public final class AwsCurrentRegionHolder
extends Object

Caches the result of calling Regions.getCurrentRegion() since accessing EC2 instance metadata repeatedly can result in being throttled and prevent other metadata accessing operations such as refreshing instance credentials from working normally

Method Summary

Modifier and Type	Method and Description
static com.amazonaws.regions.Region	getCurrentRegionFromEC2Metadata() Attempts to resolve the current region from EC2's instance metadata through Regions.getCurrentRegion().

Methods inherited from class java.lang.Object

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

Method Detail

getCurrentRegionFromEC2Metadata

public static com.amazonaws.regions.Region getCurrentRegionFromEC2Metadata()
                                                                    throws IllegalStateException

Attempts to resolve the current region from EC2's instance metadata through Regions.getCurrentRegion(). If no region is able to be resolved an exception is thrown

Throws:

IllegalStateException