com.netflix.concurrency.limits.limiter

Class DefaultLimiter<ContextT>

java.lang.Object

com.netflix.concurrency.limits.limiter.DefaultLimiter<ContextT>

Type Parameters:

ContextT -

All Implemented Interfaces:

Limiter<ContextT>

public final class DefaultLimiter<ContextT>
extends java.lang.Object
implements Limiter<ContextT>

Limiter that combines a plugable limit algorithm and enforcement strategy to enforce concurrency limits to a fixed resource.

Nested Class Summary

Nested classes/interfaces inherited from interface com.netflix.concurrency.limits.Limiter

Limiter.Listener

Constructor Summary

Constructors

Constructor and Description
DefaultLimiter(Limit limit, Strategy<ContextT> strategy)

Method Summary

Modifier and Type	Method and Description
java.util.Optional<Limiter.Listener>	acquire(ContextT context) Acquire a token from the limiter.
protected int	getLimit()
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultLimiter

public DefaultLimiter(Limit limit,
                      Strategy<ContextT> strategy)

Method Detail

acquire

public java.util.Optional<Limiter.Listener> acquire(ContextT context)

Description copied from interface: Limiter

Acquire a token from the limiter. Returns an Optional.empty() if the limit has been exceeded. If acquired the caller must call one of the Listener methods when the operation has been completed to release the count.

Specified by:

acquire in interface Limiter<ContextT>

Parameters:

context - Context for the request. The context is used by advanced startegies such as LookupPartitionStrategy.

Returns:

Optional.empty() if limit exceeded.

getLimit

protected int getLimit()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object