alluxio.util

Class TieredIdentityUtils

java.lang.Object

alluxio.util.TieredIdentityUtils

@ThreadSafe
public final class TieredIdentityUtils
extends Object

Utility functions for working with tiered identity.

Method Summary

Modifier and Type	Method and Description
static boolean	matches(TieredIdentity.LocalityTier tier, TieredIdentity.LocalityTier otherTier, boolean resolveIpAddress) Locality comparison for wire type locality tiers, two locality tiers matches if both name and values are equal, or for the "node" tier, if the node names resolve to the same IP address.
static Optional<TieredIdentity>	nearest(TieredIdentity tieredIdentity, List<TieredIdentity> identities, AlluxioConfiguration conf)

Methods inherited from class java.lang.Object

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

Method Detail

matches

public static boolean matches(TieredIdentity.LocalityTier tier,
                              TieredIdentity.LocalityTier otherTier,
                              boolean resolveIpAddress)

Locality comparison for wire type locality tiers, two locality tiers matches if both name and values are equal, or for the "node" tier, if the node names resolve to the same IP address.

Parameters:

tier - a wire type locality tier

otherTier - a wire type locality tier to compare to

resolveIpAddress - whether or not to resolve hostnames to IP addresses for node locality

Returns:

true if the wire type locality tier matches the given tier

nearest

public static Optional<TieredIdentity> nearest(TieredIdentity tieredIdentity,
                                               List<TieredIdentity> identities,
                                               AlluxioConfiguration conf)

Parameters:

tieredIdentity - the tiered identity

identities - the tiered identities to compare to

conf - Alluxio configuration

Returns:

the identity closest to this one. If none of the identities match, the first identity is returned