io.github.resilience4j.reactor

Class ResilienceBaseSubscriber<T>

java.lang.Object

io.github.resilience4j.reactor.ResilienceBaseSubscriber<T>

Type Parameters:

T -

All Implemented Interfaces:

org.reactivestreams.Subscriber<T>, org.reactivestreams.Subscription, reactor.core.CoreSubscriber<T>, reactor.core.Disposable

public abstract class ResilienceBaseSubscriber<T>
extends java.lang.Object
implements reactor.core.CoreSubscriber<T>, org.reactivestreams.Subscription, reactor.core.Disposable

Heavily inspired by BaseSubscriber

Nested Class Summary

Nested classes/interfaces inherited from interface reactor.core.Disposable

reactor.core.Disposable.Composite, reactor.core.Disposable.Swap

Field Summary

Fields

Modifier and Type	Field and Description
protected reactor.core.CoreSubscriber<? super T>	actual

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ResilienceBaseSubscriber(reactor.core.CoreSubscriber<? super T> actual)

Method Summary

Modifier and Type	Method and Description
protected boolean	acquireCallPermit()
void	cancel()
reactor.util.context.Context	currentContext()
void	dispose() Dispose the Subscription by cancelling it.
protected abstract java.lang.Throwable	getThrowable()
protected void	hookFinally(reactor.core.publisher.SignalType type) Optional hook executed after any of the termination events (onError, onComplete, cancel).
protected void	hookOnCancel() Optional hook executed when the subscription is cancelled by calling this Subscriber's cancel() method.
protected void	hookOnComplete() Optional hook for completion processing.
protected void	hookOnError(java.lang.Throwable throwable) Optional hook for error processing.
protected void	hookOnNext(T value) Hook for processing of onNext values.
protected void	hookOnPermitAcquired() Optional hook executed when permit call is acquired.
protected void	hookOnSubscribe(org.reactivestreams.Subscription subscription) Hook for further processing of onSubscribe's Subscription.
protected abstract boolean	isCallPermitted()
boolean	isDisposed()
protected boolean	notCancelled()
void	onComplete()
void	onError(java.lang.Throwable t)
void	onNext(T value)
void	onSubscribe(org.reactivestreams.Subscription s)
void	request(long n)
void	requestUnbounded() Request an unbounded amount.
java.lang.String	toString()
protected org.reactivestreams.Subscription	upstream() Return current Subscription
protected boolean	wasCallPermitted()

Methods inherited from class java.lang.Object

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

Field Detail

actual

protected final reactor.core.CoreSubscriber<? super T> actual

Constructor Detail

ResilienceBaseSubscriber

protected ResilienceBaseSubscriber(reactor.core.CoreSubscriber<? super T> actual)

Method Detail

upstream

@Nullable
protected org.reactivestreams.Subscription upstream()

Return current Subscription

Returns:

current Subscription

isDisposed

public boolean isDisposed()

Specified by:

isDisposed in interface reactor.core.Disposable

dispose

public void dispose()

Dispose the Subscription by cancelling it.

Specified by:

dispose in interface reactor.core.Disposable

currentContext

public reactor.util.context.Context currentContext()

Specified by:

currentContext in interface reactor.core.CoreSubscriber<T>

notCancelled

protected boolean notCancelled()

hookOnSubscribe

protected void hookOnSubscribe(org.reactivestreams.Subscription subscription)

Hook for further processing of onSubscribe's Subscription.

Parameters:

subscription - the subscription to optionally process

hookOnNext

protected void hookOnNext(T value)

Hook for processing of onNext values. You can call request(long) here to further request data from the source Publisher if the initial request wasn't unbounded.

Defaults to doing nothing.

Parameters:

value - the emitted value to process

hookOnComplete

protected void hookOnComplete()

Optional hook for completion processing. Defaults to doing nothing.

hookOnError

protected void hookOnError(java.lang.Throwable throwable)

Optional hook for error processing. Default is to call Exceptions.errorCallbackNotImplemented(Throwable).

Parameters:

throwable - the error to process

hookOnCancel

protected void hookOnCancel()

Optional hook executed when the subscription is cancelled by calling this Subscriber's cancel() method. Defaults to doing nothing.

hookFinally

protected void hookFinally(reactor.core.publisher.SignalType type)

Optional hook executed after any of the termination events (onError, onComplete, cancel). The hook is executed in addition to and after hookOnError(Throwable), hookOnComplete() and hookOnCancel() hooks, even if these callbacks fail. Defaults to doing nothing. A failure of the callback will be caught by Operators.onErrorDropped(Throwable, reactor.util.context.Context).

Parameters:

type - the type of termination event that triggered the hook (SignalType.ON_ERROR, SignalType.ON_COMPLETE or SignalType.CANCEL)

hookOnPermitAcquired

protected void hookOnPermitAcquired()

Optional hook executed when permit call is acquired.

isCallPermitted

protected abstract boolean isCallPermitted()

Returns:

true if call is permitted, false otherwise

acquireCallPermit

protected boolean acquireCallPermit()

wasCallPermitted

protected boolean wasCallPermitted()

getThrowable

protected abstract java.lang.Throwable getThrowable()

onSubscribe

public final void onSubscribe(org.reactivestreams.Subscription s)

Specified by:

onSubscribe in interface org.reactivestreams.Subscriber<T>

Specified by:

onSubscribe in interface reactor.core.CoreSubscriber<T>

onNext

public final void onNext(T value)

Specified by:

onNext in interface org.reactivestreams.Subscriber<T>

onError

public final void onError(java.lang.Throwable t)

Specified by:

onError in interface org.reactivestreams.Subscriber<T>

onComplete

public final void onComplete()

Specified by:

onComplete in interface org.reactivestreams.Subscriber<T>

request

public final void request(long n)

Specified by:

request in interface org.reactivestreams.Subscription

requestUnbounded

public final void requestUnbounded()

Request an unbounded amount.

cancel

public final void cancel()

Specified by:

cancel in interface org.reactivestreams.Subscription

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object