org.springframework.messaging.tcp.reactor

Class AbstractPromiseToListenableFutureAdapter<S,T>

java.lang.Object

org.springframework.messaging.tcp.reactor.AbstractPromiseToListenableFutureAdapter<S,T>

Type Parameters:

S - the type of object expected from the Promise

T - the type of object expected from the ListenableFuture

All Implemented Interfaces:

java.util.concurrent.Future<T>, ListenableFuture<T>

Direct Known Subclasses:

PassThroughPromiseToListenableFutureAdapter

abstract class AbstractPromiseToListenableFutureAdapter<S,T>
extends java.lang.Object
implements ListenableFuture<T>

Adapts a reactor Promise to ListenableFuture optionally converting the result Object type <S> to the expected target type <T>.

Since:

4.0

Author:

Rossen Stoyanchev

Field Summary

Fields

Modifier and Type	Field and Description
private <any>	promise
private ListenableFutureCallbackRegistry<T>	registry

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractPromiseToListenableFutureAdapter(<any> promise)

Method Summary

Modifier and Type	Method and Description
protected abstract T	adapt(S result)
void	addCallback(ListenableFutureCallback<? super T> callback) Registers the given callback to this ListenableFuture.
void	addCallback(SuccessCallback<? super T> successCallback, FailureCallback failureCallback) Registers the given success and failure callbacks to this ListenableFuture.
boolean	cancel(boolean mayInterruptIfRunning)
T	get()
T	get(long timeout, java.util.concurrent.TimeUnit unit)
boolean	isCancelled()
boolean	isDone()

Methods inherited from class java.lang.Object

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

Field Detail

promise

private final <any> promise

registry

private final ListenableFutureCallbackRegistry<T> registry

Constructor Detail

AbstractPromiseToListenableFutureAdapter

protected AbstractPromiseToListenableFutureAdapter(<any> promise)

Method Detail

get

public T get()
      throws java.lang.InterruptedException

Specified by:

get in interface java.util.concurrent.Future<T>

Throws:

java.lang.InterruptedException

get

public T get(long timeout,
             java.util.concurrent.TimeUnit unit)
      throws java.lang.InterruptedException,
             java.util.concurrent.ExecutionException,
             java.util.concurrent.TimeoutException

Specified by:

get in interface java.util.concurrent.Future<T>

Throws:

java.lang.InterruptedException

java.util.concurrent.ExecutionException

java.util.concurrent.TimeoutException

cancel

public boolean cancel(boolean mayInterruptIfRunning)

Specified by:

cancel in interface java.util.concurrent.Future<T>

isCancelled

public boolean isCancelled()

Specified by:

isCancelled in interface java.util.concurrent.Future<T>

isDone

public boolean isDone()

Specified by:

isDone in interface java.util.concurrent.Future<T>

addCallback

public void addCallback(ListenableFutureCallback<? super T> callback)

Description copied from interface: ListenableFuture

Registers the given callback to this ListenableFuture. The callback will be triggered when this Future is complete or, if it is already complete, immediately.

Specified by:

addCallback in interface ListenableFuture<T>

Parameters:

callback - the callback to register

addCallback

public void addCallback(SuccessCallback<? super T> successCallback,
                        FailureCallback failureCallback)

Description copied from interface: ListenableFuture

Registers the given success and failure callbacks to this ListenableFuture. The callback will be triggered when this Future is complete or, if it is already complete immediately. This is a Java 8 lambdas compliant alternative to ListenableFuture.addCallback(ListenableFutureCallback).

Specified by:

addCallback in interface ListenableFuture<T>

Parameters:

successCallback - the success callback to register

failureCallback - the failure callback to register

adapt

protected abstract T adapt(S result)