@NonNullByDefault

Package com.linecorp.armeria.common.util

Generic utility classes.

Interface Summary

Interface	Description
AbstractOption.Factory<T extends AbstractOption<T,U,V>,U extends AbstractOptionValue<U,T,V>,V>	Creates a new option instance.
AsyncCloseable	An object that may hold resources until it is closed.
Listenable<T>	An interface that accepts item change listeners.
ListenableAsyncCloseable	A variant of AsyncCloseable which allows a user to check whether the object is closed or to get notified when closed.
ReleasableHolder<T>	A holder of releasable resource ReleasableHolder.
SafeCloseable	An AutoCloseable whose SafeCloseable.close() method does not throw an exception.
Sampler<T>	Sampler is responsible for deciding if a particular trace should be "sampled", i.e. whether the overhead of tracing will occur and/or if a trace will be reported to the collection tier.
Ticker	A time source; returns a time value representing the number of nanoseconds elapsed since some fixed but arbitrary point in time.
Unwrappable	Provides a way to unwrap an object in decorator pattern, similar to down-casting in an inheritance pattern.

Class Summary

Class	Description
AbstractListenable<T>	A skeletal Listenable implementation.
AbstractOption<T extends AbstractOption<T,U,V>,U extends AbstractOptionValue<U,T,V>,V>	A configuration option.
AbstractOptions<T extends AbstractOption<T,U,Object>,U extends AbstractOptionValue<U,T,Object>>	A set of configuration options and their respective values.
AbstractOptionValue<T extends AbstractOptionValue<T,U,V>,U extends AbstractOption<U,T,V>,V>	A holder of a value of an AbstractOption.
AbstractUnwrappable<T extends Unwrappable>	Skeletal Unwrappable implementation.
AppRootFinder	A utility that looks for the Path to the JAR, WAR or directory where a Class is located at.
AsyncCloseableSupport	Provides support for implementing AsyncCloseable or ListenableAsyncCloseable.
CompletionActions	Provides the common actions that are useful when handling a CompletionStage.
EventLoopCheckingFuture<T>	A CompletableFuture that warns the user if they call a method that blocks the event loop.
EventLoopGroups	Provides methods that are useful for creating an EventLoopGroup.
Exceptions	Provides methods that are useful for handling exceptions.
Functions	Utility methods related with function composition.
InetAddressPredicates	A utility class which provides factory methods in order to easily create a Predicate of an InetAddress.
LruMap<T,U>	LRU (Least Recently Used) cache Map.
StartStopSupport<T,U,V,L>	Provides asynchronous start-stop life cycle support.
SystemInfo	Provides utilities for accessing the information about the current system and process.
TextFormatter	A utility class to format things as a String with ease.
ThreadFactories	Provides a builder for ThreadFactory.
ThreadFactoryBuilder	Builds a new ThreadFactory.
UnmodifiableFuture<T>	A CompletableFuture which prevents the caller from completing it.
Version	Retrieves the version information of available Armeria artifacts.

Enum Summary

Enum	Description
OsType	Operating system.
TimeoutMode	The timeout mode.

Exception Summary

Exception	Description
CompositeException	Represents an exception that is a composite of one or more other exceptions.