com.spotify.folsom.client

Class Utils

java.lang.Object

com.spotify.folsom.client.Utils

public final class Utils
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
private static int	TTL_CUTOFF

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Utils()

Method Summary

Modifier and Type	Method and Description
static <T> java.util.function.Function<java.util.List<java.util.List<T>>,java.util.List<T>>	flatten()
static int	getGlobalConnectionCount() A counter of all currently connected clients.
(package private) static <T> java.util.concurrent.CompletionStage<T>	onExecutor(java.util.concurrent.CompletionStage<T> future, java.util.concurrent.Executor executor)
static int	ttlToExpiration(int ttl)
static java.lang.Throwable	unwrap(java.lang.Throwable e)
static <K,V> java.util.Map<K,V>	zipToMap(java.util.List<K> keys, java.util.List<V> values) Zip together a list of keys and a list of values to a map.

Methods inherited from class java.lang.Object

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

Field Detail

TTL_CUTOFF

private static final int TTL_CUTOFF

See Also:

Constant Field Values

Constructor Detail

Utils

private Utils()

Method Detail

ttlToExpiration

public static int ttlToExpiration(int ttl)

flatten

public static <T> java.util.function.Function<java.util.List<java.util.List<T>>,java.util.List<T>> flatten()

getGlobalConnectionCount

public static int getGlobalConnectionCount()

A counter of all currently connected clients. This can be useful to detect connection leaks

unwrap

public static java.lang.Throwable unwrap(java.lang.Throwable e)

onExecutor

static <T> java.util.concurrent.CompletionStage<T> onExecutor(java.util.concurrent.CompletionStage<T> future,
                                                              java.util.concurrent.Executor executor)

zipToMap

public static <K,V> java.util.Map<K,V> zipToMap(java.util.List<K> keys,
                                                java.util.List<V> values)

Zip together a list of keys and a list of values to a map. Entries where either key or value is null are excluded.

Type Parameters:

K - the type of keys

V - the type of values

Parameters:

keys - the list of keys

values - the list of values

Returns:

a map of key-value pairs

Throws:

java.lang.IllegalArgumentException - if the lists are note equal in length.