Example usage for java.util.concurrent CompletableFuture allOf

Introduction

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

Prototype

public static CompletableFuture<Void> allOf(CompletableFuture<?>... cfs) 

Source Link

Document

Returns a new CompletableFuture that is completed when all of the given CompletableFutures complete.

Usage

From source file:com.microsoft.azure.servicebus.samples.partitionedqueues.PartitionedQueues.java

CompletableFuture<Void> sendMessagesAsync(QueueClient sendClient) {

    List<HashMap<String, String>> data = GSON.fromJson("[" + "{'name' = 'Einstein', 'firstName' = 'Albert'},"
            + "{'name' = 'Heisenberg', 'firstName' = 'Werner'}," + "{'name' = 'Curie', 'firstName' = 'Marie'},"
            + "{'name' = 'Hawking', 'firstName' = 'Steven'}," + "{'name' = 'Newton', 'firstName' = 'Isaac'},"
            + "{'name' = 'Bohr', 'firstName' = 'Niels'}," + "{'name' = 'Faraday', 'firstName' = 'Michael'},"
            + "{'name' = 'Galilei', 'firstName' = 'Galileo'},"
            + "{'name' = 'Kepler', 'firstName' = 'Johannes'},"
            + "{'name' = 'Kopernikus', 'firstName' = 'Nikolaus'}" + "]",
            new TypeToken<List<HashMap<String, String>>>() {
            }.getType());/*from w w w .ja  v a  2s .  c  o m*/

    List<CompletableFuture> tasks = new ArrayList<>();
    for (int i = 0; i < data.size(); i++) {
        final String messageId = Integer.toString(i);
        Message message = new Message(GSON.toJson(data.get(i), Map.class).getBytes(UTF_8));
        message.setContentType("application/json");
        message.setLabel("Scientist");
        message.setMessageId(messageId);
        message.setTimeToLive(Duration.ofMinutes(2));
        message.setPartitionKey(data.get(i).get("name").substring(0, 1));

        tasks.add(sendClient.sendAsync(message).thenRunAsync(() -> {
            System.out.printf("Message sent: Id = %s\n", message.getMessageId());
        }));
    }
    return CompletableFuture.allOf(tasks.toArray(new CompletableFuture<?>[tasks.size()]));
}

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From source file:com.microsoft.azure.servicebus.samples.messagebrowse.MessageBrowse.java

CompletableFuture<Void> sendMessagesAsync(QueueClient sendClient) {

    List<HashMap<String, String>> data = GSON.fromJson("[" + "{'name' = 'Einstein', 'firstName' = 'Albert'},"
            + "{'name' = 'Heisenberg', 'firstName' = 'Werner'}," + "{'name' = 'Curie', 'firstName' = 'Marie'},"
            + "{'name' = 'Hawking', 'firstName' = 'Steven'}," + "{'name' = 'Newton', 'firstName' = 'Isaac'},"
            + "{'name' = 'Bohr', 'firstName' = 'Niels'}," + "{'name' = 'Faraday', 'firstName' = 'Michael'},"
            + "{'name' = 'Galilei', 'firstName' = 'Galileo'},"
            + "{'name' = 'Kepler', 'firstName' = 'Johannes'},"
            + "{'name' = 'Kopernikus', 'firstName' = 'Nikolaus'}" + "]",
            new TypeToken<List<HashMap<String, String>>>() {
            }.getType());//  w  ww.j  a  v  a 2  s.c  o m

    List<CompletableFuture> tasks = new ArrayList<>();
    for (int i = 0; i < data.size(); i++) {
        final String messageId = Integer.toString(i);
        Message message = new Message(GSON.toJson(data.get(i), Map.class).getBytes(UTF_8));
        message.setContentType("application/json");
        message.setLabel("Scientist");
        message.setMessageId(messageId);
        message.setTimeToLive(Duration.ofMinutes(2));

        tasks.add(sendClient.sendAsync(message).thenRunAsync(() -> {
            System.out.printf("Message sent: Id = %s\n", message.getMessageId());
        }));
    }
    return CompletableFuture.allOf(tasks.toArray(new CompletableFuture<?>[tasks.size()]));
}

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From source file:com.microsoft.azure.servicebus.samples.scheduledmessages.ScheduledMessages.java

CompletableFuture<Void> sendMessagesAsync(QueueClient sendClient) {

    List<HashMap<String, String>> data = GSON.fromJson("[" + "{'name' = 'Einstein', 'firstName' = 'Albert'},"
            + "{'name' = 'Heisenberg', 'firstName' = 'Werner'}," + "{'name' = 'Curie', 'firstName' = 'Marie'},"
            + "{'name' = 'Hawking', 'firstName' = 'Steven'}," + "{'name' = 'Newton', 'firstName' = 'Isaac'},"
            + "{'name' = 'Bohr', 'firstName' = 'Niels'}," + "{'name' = 'Faraday', 'firstName' = 'Michael'},"
            + "{'name' = 'Galilei', 'firstName' = 'Galileo'},"
            + "{'name' = 'Kepler', 'firstName' = 'Johannes'},"
            + "{'name' = 'Kopernikus', 'firstName' = 'Nikolaus'}" + "]",
            new TypeToken<List<HashMap<String, String>>>() {
            }.getType());/*  ww  w .  j  av a 2s  . c o m*/

    List<CompletableFuture> tasks = new ArrayList<>();
    for (int i = 0; i < data.size(); i++) {
        final String messageId = Integer.toString(i);
        Message message = new Message(GSON.toJson(data.get(i), Map.class).getBytes(UTF_8));
        message.setContentType("application/json");
        message.setLabel("Scientist");
        message.setMessageId(messageId);
        message.setTimeToLive(Duration.ofMinutes(2));
        message.setScheduledEnqueueTimeUtc(Clock.systemUTC().instant().plusSeconds(120));
        System.out.printf("Message sending: Id = %s\n", message.getMessageId());
        tasks.add(sendClient.sendAsync(message).thenRunAsync(() -> {
            System.out.printf("\tMessage acknowledged: Id = %s\n", message.getMessageId());
        }));
    }
    return CompletableFuture.allOf(tasks.toArray(new CompletableFuture<?>[tasks.size()]));
}

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From source file:com.microsoft.azure.servicebus.samples.queuesgettingstarted.QueuesGettingStarted.java

CompletableFuture<Void> sendMessagesAsync(QueueClient sendClient) {
    List<HashMap<String, String>> data = GSON.fromJson("[" + "{'name' = 'Einstein', 'firstName' = 'Albert'},"
            + "{'name' = 'Heisenberg', 'firstName' = 'Werner'}," + "{'name' = 'Curie', 'firstName' = 'Marie'},"
            + "{'name' = 'Hawking', 'firstName' = 'Steven'}," + "{'name' = 'Newton', 'firstName' = 'Isaac'},"
            + "{'name' = 'Bohr', 'firstName' = 'Niels'}," + "{'name' = 'Faraday', 'firstName' = 'Michael'},"
            + "{'name' = 'Galilei', 'firstName' = 'Galileo'},"
            + "{'name' = 'Kepler', 'firstName' = 'Johannes'},"
            + "{'name' = 'Kopernikus', 'firstName' = 'Nikolaus'}" + "]",
            new TypeToken<List<HashMap<String, String>>>() {
            }.getType());/*from   www  .j  a  v a 2s . c o m*/

    List<CompletableFuture> tasks = new ArrayList<>();
    for (int i = 0; i < data.size(); i++) {
        final String messageId = Integer.toString(i);
        Message message = new Message(GSON.toJson(data.get(i), Map.class).getBytes(UTF_8));
        message.setContentType("application/json");
        message.setLabel("Scientist");
        message.setMessageId(messageId);
        message.setTimeToLive(Duration.ofMinutes(2));
        System.out.printf("\nMessage sending: Id = %s", message.getMessageId());
        tasks.add(sendClient.sendAsync(message).thenRunAsync(() -> {
            System.out.printf("\n\tMessage acknowledged: Id = %s", message.getMessageId());
        }));
    }
    return CompletableFuture.allOf(tasks.toArray(new CompletableFuture<?>[tasks.size()]));
}

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From source file:com.microsoft.azure.servicebus.samples.timetolive.TimeToLive.java

CompletableFuture<Void> sendMessagesAsync(IMessageSender sendClient) {
    List<HashMap<String, String>> data = GSON.fromJson("[" + "{'name' = 'Einstein', 'firstName' = 'Albert'},"
            + "{'name' = 'Heisenberg', 'firstName' = 'Werner'}," + "{'name' = 'Curie', 'firstName' = 'Marie'},"
            + "{'name' = 'Hawking', 'firstName' = 'Steven'}," + "{'name' = 'Newton', 'firstName' = 'Isaac'},"
            + "{'name' = 'Bohr', 'firstName' = 'Niels'}," + "{'name' = 'Faraday', 'firstName' = 'Michael'},"
            + "{'name' = 'Galilei', 'firstName' = 'Galileo'},"
            + "{'name' = 'Kepler', 'firstName' = 'Johannes'},"
            + "{'name' = 'Kopernikus', 'firstName' = 'Nikolaus'}" + "]",
            new TypeToken<List<HashMap<String, String>>>() {
            }.getType());/*  ww w  .  jav  a 2s.co m*/

    List<CompletableFuture> tasks = new ArrayList<>();
    for (int i = 0; i < data.size(); i++) {
        final String messageId = Integer.toString(i);
        Message message = new Message(GSON.toJson(data.get(i), Map.class).getBytes(UTF_8));
        message.setContentType("application/json");
        message.setLabel(i % 2 == 0 ? "Scientist" : "Physicist");
        message.setMessageId(messageId);
        message.setTimeToLive(Duration.ofSeconds(15));
        System.out.printf("Message sending: Id = %s\n", message.getMessageId());
        tasks.add(sendClient.sendAsync(message).thenRunAsync(() -> {
            System.out.printf("\tMessage acknowledged: Id = %s\n", message.getMessageId());
        }));
    }
    return CompletableFuture.allOf(tasks.toArray(new CompletableFuture<?>[tasks.size()]));
}

---

From source file:com.devicehive.service.DeviceCommandService.java

public CompletableFuture<List<DeviceCommand>> find(Collection<String> guids, Collection<String> names,
        Date timestampSt, Date timestampEnd, String status) {
    List<CompletableFuture<Response>> futures = guids.stream().map(guid -> {
        CommandSearchRequest searchRequest = new CommandSearchRequest();
        searchRequest.setGuid(guid);/*from w ww  .  j a va  2  s.  c  o  m*/
        if (names != null) {
            searchRequest.setNames(new HashSet<>(names));
        }
        searchRequest.setTimestampStart(timestampSt);
        searchRequest.setTimestampEnd(timestampEnd);
        searchRequest.setStatus(status);
        return searchRequest;
    }).map(searchRequest -> {
        CompletableFuture<Response> future = new CompletableFuture<>();
        rpcClient.call(
                Request.newBuilder().withBody(searchRequest).withPartitionKey(searchRequest.getGuid()).build(),
                new ResponseConsumer(future));
        return future;
    }).collect(Collectors.toList());

    // List<CompletableFuture<Response>> => CompletableFuture<List<DeviceCommand>>
    return CompletableFuture.allOf(futures.toArray(new CompletableFuture[futures.size()]))
            .thenApply(v -> futures.stream().map(CompletableFuture::join) // List<CompletableFuture<Response>> => CompletableFuture<List<Response>>
                    .map(r -> ((CommandSearchResponse) r.getBody()).getCommands()) // CompletableFuture<List<Response>> => CompletableFuture<List<List<DeviceCommand>>>
                    .flatMap(Collection::stream) // CompletableFuture<List<List<DeviceCommand>>> => CompletableFuture<List<DeviceCommand>>
                    .collect(Collectors.toList()));
}

---

From source file:com.microsoft.azure.servicebus.samples.deadletterqueue.DeadletterQueue.java

CompletableFuture<Void> sendMessagesAsync(IMessageSender sendClient, int maxMessages) {
    List<HashMap<String, String>> data = GSON.fromJson("[" + "{'name' = 'Einstein', 'firstName' = 'Albert'},"
            + "{'name' = 'Heisenberg', 'firstName' = 'Werner'}," + "{'name' = 'Curie', 'firstName' = 'Marie'},"
            + "{'name' = 'Hawking', 'firstName' = 'Steven'}," + "{'name' = 'Newton', 'firstName' = 'Isaac'},"
            + "{'name' = 'Bohr', 'firstName' = 'Niels'}," + "{'name' = 'Faraday', 'firstName' = 'Michael'},"
            + "{'name' = 'Galilei', 'firstName' = 'Galileo'},"
            + "{'name' = 'Kepler', 'firstName' = 'Johannes'},"
            + "{'name' = 'Kopernikus', 'firstName' = 'Nikolaus'}" + "]",
            new TypeToken<List<HashMap<String, String>>>() {
            }.getType());//from  w w  w.  ja va 2s  .  c o  m

    List<CompletableFuture> tasks = new ArrayList<>();
    for (int i = 0; i < Math.min(data.size(), maxMessages); i++) {
        final String messageId = Integer.toString(i);
        Message message = new Message(GSON.toJson(data.get(i), Map.class).getBytes(UTF_8));
        message.setContentType("application/json");
        message.setLabel(i % 2 == 0 ? "Scientist" : "Physicist");
        message.setMessageId(messageId);
        message.setTimeToLive(Duration.ofMinutes(2));
        System.out.printf("Message sending: Id = %s\n", message.getMessageId());
        tasks.add(sendClient.sendAsync(message).thenRunAsync(() -> {
            System.out.printf("\tMessage acknowledged: Id = %s\n", message.getMessageId());
        }));
    }
    return CompletableFuture.allOf(tasks.toArray(new CompletableFuture<?>[tasks.size()]));
}

---

From source file:com.microsoft.azure.servicebus.samples.topicsgettingstarted.TopicsGettingStarted.java

CompletableFuture<Void> sendMessagesAsync(TopicClient sendClient) {
    List<HashMap<String, String>> data = GSON.fromJson("[" + "{'name' = 'Einstein', 'firstName' = 'Albert'},"
            + "{'name' = 'Heisenberg', 'firstName' = 'Werner'}," + "{'name' = 'Curie', 'firstName' = 'Marie'},"
            + "{'name' = 'Hawking', 'firstName' = 'Steven'}," + "{'name' = 'Newton', 'firstName' = 'Isaac'},"
            + "{'name' = 'Bohr', 'firstName' = 'Niels'}," + "{'name' = 'Faraday', 'firstName' = 'Michael'},"
            + "{'name' = 'Galilei', 'firstName' = 'Galileo'},"
            + "{'name' = 'Kepler', 'firstName' = 'Johannes'},"
            + "{'name' = 'Kopernikus', 'firstName' = 'Nikolaus'}" + "]",
            new TypeToken<List<HashMap<String, String>>>() {
            }.getType());//from   w  w w. j a  va  2  s  . c  om

    List<CompletableFuture> tasks = new ArrayList<>();
    for (int i = 0; i < data.size(); i++) {
        final String messageId = Integer.toString(i);
        Message message = new Message(GSON.toJson(data.get(i), Map.class).getBytes(UTF_8));
        message.setContentType("application/json");
        message.setLabel("Scientist");
        message.setMessageId(messageId);
        message.setTimeToLive(Duration.ofMinutes(2));
        System.out.printf("Message sending: Id = %s\n", message.getMessageId());
        tasks.add(sendClient.sendAsync(message).thenRunAsync(() -> {
            System.out.printf("\tMessage acknowledged: Id = %s\n", message.getMessageId());
        }));
    }
    return CompletableFuture.allOf(tasks.toArray(new CompletableFuture<?>[tasks.size()]));
}

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From source file:com.devicehive.service.DeviceNotificationService.java

@SuppressWarnings("unchecked")
public CompletableFuture<List<DeviceNotification>> find(Set<String> guids, Set<String> names, Date timestampSt,
        Date timestampEnd) {//  www  .  j  a  v  a2 s  . co m
    List<CompletableFuture<Response>> futures = guids.stream().map(guid -> {
        NotificationSearchRequest searchRequest = new NotificationSearchRequest();
        searchRequest.setGuid(guid);
        searchRequest.setNames(names);
        searchRequest.setTimestampStart(timestampSt);
        searchRequest.setTimestampEnd(timestampEnd);
        return searchRequest;
    }).map(searchRequest -> {
        CompletableFuture<Response> future = new CompletableFuture<>();
        rpcClient.call(
                Request.newBuilder().withBody(searchRequest).withPartitionKey(searchRequest.getGuid()).build(),
                new ResponseConsumer(future));
        return future;
    }).collect(Collectors.toList());

    // List<CompletableFuture<Response>> => CompletableFuture<List<DeviceNotification>>
    return CompletableFuture.allOf(futures.toArray(new CompletableFuture[futures.size()]))
            .thenApply(v -> futures.stream().map(CompletableFuture::join) // List<CompletableFuture<Response>> => CompletableFuture<List<Response>>
                    .map(r -> r.getBody().cast(NotificationSearchResponse.class).getNotifications()) // CompletableFuture<List<Response>> => CompletableFuture<List<List<DeviceNotification>>>
                    .flatMap(Collection::stream) // CompletableFuture<List<List<DeviceNotification>>> => CompletableFuture<List<DeviceNotification>>
                    .collect(Collectors.toList()));
}

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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 av a2s .c om*/
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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