Example usage for java.util.concurrent CompletableFuture supplyAsync

Introduction

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

Prototype

public static <U> CompletableFuture<U> supplyAsync(Supplier<U> supplier, Executor executor) 

Source Link

Document

Returns a new CompletableFuture that is asynchronously completed by a task running in the given executor with the value obtained by calling the given Supplier.

Usage

From source file:de.ks.text.view.AsciiDocViewer.java

@Override
public void initialize(URL location, ResourceBundle resources) {
    CompletableFuture.supplyAsync(() -> new WebView(), controller.getJavaFXExecutor()).thenAccept(view -> {
        webView = view;/*from   ww w.j a v  a 2  s . c o m*/
        webView.setMinSize(100, 100);
        webView.setPrefSize(Control.USE_COMPUTED_SIZE, Control.USE_COMPUTED_SIZE);
        root.getChildren().add(webView);
    });

    Iterator<AsciiDocPreProcessor> iterator = preProcessorProvider.iterator();
    while (iterator.hasNext()) {
        AsciiDocPreProcessor next = iterator.next();
        addPreProcessor(next);
    }
}

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From source file:com.redhat.coolstore.api_gateway.ApiGatewayController.java

@CrossOrigin(maxAge = 3600)
@RequestMapping(method = RequestMethod.POST, value = "/cart/checkout/{cartId}", produces = MediaType.APPLICATION_JSON_VALUE)
@ApiOperation("Cart checkout")
@ResponseBody//from  ww w .ja v a 2  s  .  c o m
public ShoppingCart checkout(@PathVariable String cartId) throws ExecutionException, InterruptedException {

    final CompletableFuture<ShoppingCart> cart = CompletableFuture
            .supplyAsync(() -> feignClientFactory.getCartClient().getService().checkout(cartId), es);

    return cart.get();
}

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From source file:edu.berkeley.ground.postgres.controllers.GraphController.java

@BodyParser.Of(BodyParser.Json.class)
public final CompletionStage<Result> addGraph() {
    return CompletableFuture.supplyAsync(() -> {
        JsonNode json = request().body().asJson();
        Graph graph = Json.fromJson(json, Graph.class);

        try {/*from  w w w . j  a v a 2  s. c  om*/
            graph = this.postgresGraphDao.create(graph);
        } catch (GroundException e) {
            throw new CompletionException(e);
        }

        return Json.toJson(graph);
    }, PostgresUtils.getDbSourceHttpContext(actorSystem)).thenApply(Results::created)
            .exceptionally(e -> GroundUtils.handleException(e, request()));
}

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From source file:io.fabric8.kubeflix.examples.loanbroker.broker.BrokerController.java

public CompletableFuture<Quote> requestQuoteAsync(Service service, final Long ssn, final Double amount,
        final Integer duration) {
    return CompletableFuture.supplyAsync(() -> {
        HystrixRequestContext context = null;
        try {//ww  w. ja  v a  2 s  .  c om
            context = HystrixRequestContext.initializeContext();
            return new RequestQuoteFromBankCommand(template, service, ssn, amount, duration).execute();
        } finally {
            if (context != null) {
                context.shutdown();
            }
        }
    }, executorService);
}

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From source file:io.pravega.controller.server.ControllerService.java

public CompletableFuture<List<NodeUri>> getControllerServerList() {
    if (cluster == null) {
        return FutureHelpers.failedFuture(new IllegalStateException("Controller cluster not initialized"));
    }/*from   w  w  w  . j av a 2 s  .  c  o m*/

    return CompletableFuture.supplyAsync(() -> {
        try {
            return cluster.getClusterMembers().stream().map(
                    host -> NodeUri.newBuilder().setEndpoint(host.getIpAddr()).setPort(host.getPort()).build())
                    .collect(Collectors.toList());
        } catch (ClusterException e) {
            // cluster implementation throws checked exceptions which cannot be thrown inside completable futures.
            throw Lombok.sneakyThrow(e);
        }
    }, executor);
}

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From source file:edu.berkeley.ground.postgres.controllers.StructureController.java

@BodyParser.Of(BodyParser.Json.class)
public final CompletionStage<Result> addStructure() {
    return CompletableFuture.supplyAsync(() -> {
        JsonNode json = request().body().asJson();
        Structure structure = Json.fromJson(json, Structure.class);

        try {/*from   w  w w .ja  v a  2  s .c o m*/
            structure = this.postgresStructureDao.create(structure);
        } catch (GroundException e) {
            throw new CompletionException(e);
        }
        return Json.toJson(structure);
    },

            PostgresUtils.getDbSourceHttpContext(this.actorSystem)).thenApply(Results::created)
            .exceptionally(e -> GroundUtils.handleException(e, request()));
}

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From source file:com.ucu.seguridad.views.AbstractFxmlView.java

/**
 * Initializes the view synchronously and invokes the consumer with the created parent Node within the FX UI thread.
 *
 * @param consumer - an object interested in received the {@link Parent} as callback
 *///from  w  ww.  java  2  s.  c  o  m
public void getView(Consumer<Parent> consumer) {
    CompletableFuture.supplyAsync(this::getView, Platform::runLater).thenAccept(consumer);
}

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From source file:com.redhat.coolstore.api_gateway.ApiGatewayController.java

@CrossOrigin(maxAge = 3600)
@RequestMapping(method = RequestMethod.GET, value = "/cart/{cartId}", produces = MediaType.APPLICATION_JSON_VALUE)
@ApiOperation("Get the user's cart")
@ResponseBody//from   w  w  w .  j ava2  s.co m
public ShoppingCart getCart(@PathVariable String cartId) throws ExecutionException, InterruptedException {

    final CompletableFuture<ShoppingCart> cart = CompletableFuture
            .supplyAsync(() -> feignClientFactory.getCartClient().getService().getCart(cartId), es);

    return cart.get();
}

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From source file:com.twosigma.beakerx.evaluator.BaseEvaluator.java

protected TryResult evaluate(SimpleEvaluationObject seo, Callable<TryResult> callable) {
    try {/*from  ww  w .  j  a  v  a  2s  . co  m*/
        background = CompletableFuture.supplyAsync(() -> {
            try {
                InternalVariable.setValue(seo);
                Future<TryResult> submit = executorService.submit(callable);
                return submit.get();
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }, executorBgkService);

        return background.get();

    } catch (Exception e) {
        return TryResult.createError(e.getLocalizedMessage());
    }
}

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From source file:com.spotify.scio.util.RemoteFileUtil.java

/**
 * Download a batch of remote {@link URI}s in parallel.
 * @return {@link Path}s to the downloaded local files.
 *///from  w w  w .j a v  a2s.c  o  m
public List<Path> download(List<URI> srcs) {
    // Blocks on globally shared ConcurrentMap with concurrency determined by CONCURRENCY_LEVEL
    synchronized (paths) {
        List<URI> missing = srcs.stream().filter(src -> !paths.containsKey(src)).collect(Collectors.toList());

        List<CompletableFuture<Path>> futures = missing.stream()
                .map(uri -> CompletableFuture.supplyAsync(() -> downloadImpl(uri), executorService))
                .collect(Collectors.toList());

        try {
            CompletableFuture.allOf(futures.toArray(new CompletableFuture[futures.size()])).get();
            List<Path> result = futures.stream().map(CompletableFuture::join).collect(Collectors.toList());

            Iterator<URI> i = missing.iterator();
            Iterator<Path> j = result.iterator();
            while (i.hasNext() && j.hasNext()) {
                paths.put(i.next(), j.next());
            }
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            throw new RuntimeException("Interrupted while executing batch download request", e);
        } catch (ExecutionException e) {
            throw new RuntimeException("Error executing batch download request", e);
        }
    }

    return srcs.stream().map(paths::get).collect(Collectors.toList());
}

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