TieredIdentityUtils (Alluxio Core - Common Utilities 295 API)

java.lang.Object
- alluxio.util.TieredIdentityUtils

@ThreadSafe
public final class TieredIdentityUtils
extends java.lang.Object

Utility functions for working with tiered identity.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	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 java.util.Optional<TieredIdentity>`	`nearest(TieredIdentity tieredIdentity, java.util.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 java.util.Optional<TieredIdentity> nearest(TieredIdentity tieredIdentity,
                                                         java.util.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