Example usage for java.util.concurrent CompletableFuture completedFuture

Introduction

In this page you can find the example usage for java.util.concurrent CompletableFuture completedFuture.

Prototype

public static <U> CompletableFuture<U> completedFuture(U value)

Source Link

Document

Returns a new CompletableFuture that is already completed with the given value.

Usage

From source file:io.pravega.controller.store.stream.ZKStream.java

private CompletableFuture<CreateStreamResponse> handleConfigExists(long creationTime,
        boolean creationTimeMatched) {
    CreateStreamResponse.CreateStatus status = creationTimeMatched ? CreateStreamResponse.CreateStatus.NEW
            : CreateStreamResponse.CreateStatus.EXISTS_CREATING;

    return getConfiguration().thenCompose(config -> store.checkExists(statePath).thenCompose(stateExists -> {
        if (!stateExists) {
            return CompletableFuture.completedFuture(new CreateStreamResponse(status, config, creationTime));
        }//from w  w w . j  a  va  2s .  c o  m

        return getState().thenApply(state -> {
            if (state.equals(State.UNKNOWN) || state.equals(State.CREATING)) {
                return new CreateStreamResponse(status, config, creationTime);
            } else {
                return new CreateStreamResponse(CreateStreamResponse.CreateStatus.EXISTS_ACTIVE, config,
                        creationTime);
            }
        });
    }));
}

From source file:io.pravega.segmentstore.server.host.ZKSegmentContainerManagerTest.java

private SegmentContainerRegistry createMockContainerRegistry() {
    SegmentContainerRegistry containerRegistry = mock(SegmentContainerRegistry.class);
    ContainerHandle containerHandle1 = mock(ContainerHandle.class);
    when(containerHandle1.getContainerId()).thenReturn(1);
    when(containerRegistry.startContainer(anyInt(), any()))
            .thenReturn(CompletableFuture.completedFuture(containerHandle1));
    when(containerRegistry.stopContainer(any(), any())).thenReturn(CompletableFuture.completedFuture(null));
    return containerRegistry;
}

From source file:com.spotify.styx.api.MiddlewaresTest.java

@Test
public void testValidClient() {
    Supplier<Optional<List<String>>> supplier = () -> Optional.of(ImmutableList.of("Styx CLI 0.1.0"));
    RequestContext requestContext = mockRequestContext(true);
    CompletionStage completionStage = CompletableFuture
            .completedFuture(Response.forStatus(Status.OK.withReasonPhrase("")));
    assertThat(Middlewares.clientValidator(supplier).apply(mockInnerHandler(requestContext, completionStage))
            .invoke(requestContext), equalTo(completionStage));
}

From source file:com.ikanow.aleph2.data_model.interfaces.shared_services.MockManagementCrudService.java

@Override
public ManagementFuture<Optional<T>> getObjectBySpec(QueryComponent<T> unique_spec, List<String> field_list,
        boolean include) {
    // Get the 2nd object to diff from getObjectById
    if (_mutable_values.size() > 1) {
        return FutureUtils.createManagementFuture(
                CompletableFuture.completedFuture(_mutable_values.stream().skip(1).findFirst()));
    } else {/*from  w w w  . j  a v a2 s  .  c o m*/
        return FutureUtils.createManagementFuture(CompletableFuture.completedFuture(Optional.empty()));
    }
}

From source file:io.pravega.client.stream.mock.MockController.java

@Override
@Synchronized//from  www  .  jav a2 s .  c  om
public CompletableFuture<Boolean> deleteStream(String scope, String streamName) {
    Stream stream = new StreamImpl(scope, streamName);
    if (createdStreams.get(stream) == null) {
        return CompletableFuture.completedFuture(false);
    }
    for (Segment segment : getSegmentsForStream(stream)) {
        deleteSegment(segment.getScopedName(), new PravegaNodeUri(endpoint, port));
    }
    createdStreams.remove(stream);
    createdScopes.get(scope).remove(stream);
    return CompletableFuture.completedFuture(true);
}

From source file:io.pravega.controller.store.stream.InMemoryStream.java

@Override
CompletableFuture<StreamConfiguration> getConfigurationData() {
    synchronized (lock) {
        if (this.configuration == null) {
            return FutureHelpers
                    .failedFuture(StoreException.create(StoreException.Type.DATA_NOT_FOUND, getName()));
        }/* w ww .j a  va  2 s .com*/
        return CompletableFuture.completedFuture(this.configuration);
    }
}

From source file:io.sqp.client.impl.SqpConnectionImpl.java

@Override
public synchronized CompletableFuture<Void> setAutoCommit(boolean useAutoCommit) {
    if (useAutoCommit == _autocommit) {
        return CompletableFuture.completedFuture(null);
    }// w  w w  . jav  a  2s  .c om
    CompletableFuture<Void> future = new CompletableFuture<>();
    if (!checkOpenAndNoErrors(future)) {
        return future;
    }
    send(new SetFeatureMessage().setAutoCommit(useAutoCommit), new ConfirmationResponseHandler(future,
            MessageType.SetFeatureCompleteMessage, "waiting for a server settings complete message"));
    return future.thenApply(v -> {
        _autocommit = useAutoCommit;
        return null;
    });
}

From source file:com.ikanow.aleph2.data_model.interfaces.shared_services.MockManagementCrudService.java

@Override
public ManagementFuture<Optional<T>> getObjectById(Object id) {
    return FutureUtils
            .createManagementFuture(CompletableFuture.completedFuture(_mutable_values.stream().findFirst()));
}

From source file:com.ikanow.aleph2.storage_service_hdfs.services.HfdsDataWriteService.java

@Override
public CompletableFuture<Supplier<Object>> storeObject(T new_object) {
    setup();/*from w  w  w.j a  v  a2  s. c o  m*/
    _writer.get().storeObject(new_object);
    return CompletableFuture.completedFuture(() -> {
        return null;
    });
}

From source file:com.spotify.styx.api.MiddlewaresTest.java

@Test
public void testValidClientNoHeader() {
    Supplier<Optional<List<String>>> supplier = () -> Optional.of(ImmutableList.of("Styx CLI 0.1.0"));
    RequestContext requestContext = mockRequestContext(false);
    CompletionStage completionStage = CompletableFuture
            .completedFuture(Response.forStatus(Status.OK.withReasonPhrase("")));
    assertThat(Middlewares.clientValidator(supplier).apply(mockInnerHandler(requestContext, completionStage))
            .invoke(requestContext), equalTo(completionStage));
}