io.reactivex.netty.client

Class MaxConnectionsBasedStrategy

java.lang.Object

io.reactivex.netty.client.MaxConnectionsBasedStrategy

All Implemented Interfaces:

PoolLimitDeterminationStrategy, MetricEventsListener<ClientMetricsEvent<?>>, CompositeHttpClientBuilder.CloneablePoolLimitDeterminationStrategy

public class MaxConnectionsBasedStrategy
extends java.lang.Object
implements CompositeHttpClientBuilder.CloneablePoolLimitDeterminationStrategy

An implementation of PoolLimitDeterminationStrategy that limits the pool based on a maximum connections limit. This limit can be increased or decreased at runtime.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_MAX_CONNECTIONS

Fields inherited from interface io.reactivex.netty.metrics.MetricEventsListener

NO_DURATION, NO_ERROR, NO_TIME_UNIT, NO_VALUE

Constructor Summary

Constructors

Constructor and Description
MaxConnectionsBasedStrategy()
MaxConnectionsBasedStrategy(int maxConnections)

Method Summary

Modifier and Type	Method and Description
boolean	acquireCreationPermit(long acquireStartTime, java.util.concurrent.TimeUnit timeUnit) Attempts to acquire a creation permit.
CompositeHttpClientBuilder.CloneablePoolLimitDeterminationStrategy	copy()
int	decrementMaxConnections(int decrementBy)
int	getAvailablePermits()
int	getMaxConnections()
int	incrementMaxConnections(int incrementBy)
void	onCompleted() Marks the end of all event callbacks.
void	onEvent(ClientMetricsEvent<?> event, long duration, java.util.concurrent.TimeUnit timeUnit, java.lang.Throwable throwable, java.lang.Object value) Event callback for any MetricsEvent.
void	onSubscribe() A callback when this listener is subscribed to a MetricEventsPublisher.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MAX_CONNECTIONS

public static final int DEFAULT_MAX_CONNECTIONS

See Also:

Constant Field Values

Constructor Detail

MaxConnectionsBasedStrategy

public MaxConnectionsBasedStrategy()

MaxConnectionsBasedStrategy

public MaxConnectionsBasedStrategy(int maxConnections)

Method Detail

acquireCreationPermit

public boolean acquireCreationPermit(long acquireStartTime,
                                     java.util.concurrent.TimeUnit timeUnit)

Description copied from interface: PoolLimitDeterminationStrategy

Attempts to acquire a creation permit.

Specified by:

acquireCreationPermit in interface PoolLimitDeterminationStrategy

Parameters:

acquireStartTime - The start time for the acquire process in milliseconds since epoch.

timeUnit - The timeunit for the acquire start time.

Returns:

true if the permit was acquired, false otherwise.

incrementMaxConnections

public int incrementMaxConnections(int incrementBy)

decrementMaxConnections

public int decrementMaxConnections(int decrementBy)

getMaxConnections

public int getMaxConnections()

getAvailablePermits

public int getAvailablePermits()

Specified by:

getAvailablePermits in interface PoolLimitDeterminationStrategy

copy

public CompositeHttpClientBuilder.CloneablePoolLimitDeterminationStrategy copy()

Specified by:

copy in interface CompositeHttpClientBuilder.CloneablePoolLimitDeterminationStrategy

onEvent

public void onEvent(ClientMetricsEvent<?> event,
                    long duration,
                    java.util.concurrent.TimeUnit timeUnit,
                    java.lang.Throwable throwable,
                    java.lang.Object value)

Description copied from interface: MetricEventsListener

Event callback for any MetricsEvent. The parameters passed are all the contextual information possible for any event. There presence or absence will depend on the type of event.

Specified by:

onEvent in interface MetricEventsListener<ClientMetricsEvent<?>>

Parameters:

event - Event for which this callback has been invoked. This will never be null

duration - If the passed event is MetricsEvent.isTimed() then the actual duration, else MetricEventsListener.NO_DURATION

timeUnit - The time unit for the duration, if exists, else MetricEventsListener.NO_TIME_UNIT

throwable - If the passed event is MetricsEvent.isError() then the cause of the error, else MetricEventsListener.NO_ERROR

value - If the passed event requires custom object to be passed, then that object, else MetricEventsListener.NO_VALUE

onCompleted

public void onCompleted()

Description copied from interface: MetricEventsListener

Marks the end of all event callbacks. No methods on this listener will ever be called once this method is called.

Specified by:

onCompleted in interface MetricEventsListener<ClientMetricsEvent<?>>

onSubscribe

public void onSubscribe()

Description copied from interface: MetricEventsListener

A callback when this listener is subscribed to a MetricEventsPublisher.

Specified by:

onSubscribe in interface MetricEventsListener<ClientMetricsEvent<?>>