Example usage for java.util.concurrent CompletableFuture CompletableFuture

List of usage examples for java.util.concurrent CompletableFuture CompletableFuture

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Introduction

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

Prototype

public CompletableFuture()

Source Link

Document

Creates a new incomplete CompletableFuture.

Usage

From source file:com.devicehive.handler.notification.NotificationSubscribeInsertIntegrationTest.java

@Test
public void shouldSubscribeToDeviceNotifications() throws Exception {
    String device1 = randomUUID().toString();
    String device2 = randomUUID().toString();

    String subscriber1 = randomUUID().toString();
    String subscriber2 = randomUUID().toString();
    String subscriber3 = randomUUID().toString();

    NotificationSubscribeRequest sr1 = new NotificationSubscribeRequest(subscriber1, device1, null, null);
    Request r1 = Request.newBuilder().withBody(sr1).withSingleReply(false).build();
    TestCallback c1 = new TestCallback();
    client.call(r1, c1);//ww w.ja  v  a  2s  .c o m

    NotificationSubscribeRequest sr2 = new NotificationSubscribeRequest(subscriber1, device2,
            Collections.singleton("temperature"), null);
    Request r2 = Request.newBuilder().withBody(sr2).withSingleReply(false).build();
    TestCallback c2 = new TestCallback();
    client.call(r2, c2);

    NotificationSubscribeRequest sr3 = new NotificationSubscribeRequest(subscriber2, device2, null, null);
    Request r3 = Request.newBuilder().withBody(sr3).withSingleReply(false).build();
    TestCallback c3 = new TestCallback();
    client.call(r3, c3);

    NotificationSubscribeRequest sr4 = new NotificationSubscribeRequest(subscriber2, device1,
            Collections.singleton("vibration"), null);
    Request r4 = Request.newBuilder().withBody(sr4).withSingleReply(false).build();
    TestCallback c4 = new TestCallback();
    client.call(r4, c4);

    NotificationSubscribeRequest sr5 = new NotificationSubscribeRequest(subscriber3, randomUUID().toString(),
            null, null);
    Request r5 = Request.newBuilder().withBody(sr5).withSingleReply(false).build();
    TestCallback c5 = new TestCallback();
    client.call(r5, c5);

    //wait subsribers to subscribe
    Stream.of(c1.subscribeFuture, c2.subscribeFuture, c3.subscribeFuture, c4.subscribeFuture,
            c5.subscribeFuture).forEach(CompletableFuture::join);

    //devices send notifications
    List<CompletableFuture<Response>> futures = Stream.of(device1, device2).flatMap(device -> {
        List<CompletableFuture<Response>> list = Stream.of("temperature", "vibration").map(name -> {
            DeviceNotification notification = new DeviceNotification();
            notification.setId(0);
            notification.setNotification(name);
            notification.setDeviceGuid(device);
            NotificationInsertRequest event = new NotificationInsertRequest(notification);
            CompletableFuture<Response> f = new CompletableFuture<>();
            client.call(Request.newBuilder().withBody(event).build(), f::complete);
            return f;
        }).collect(Collectors.toList());
        return list.stream();
    }).collect(Collectors.toList());

    //wait notifications delivered
    futures.forEach(CompletableFuture::join);

    assertThat(c1.notifications, hasSize(2));
    c1.notifications.forEach(event -> {
        assertNotNull(event.getNotification());
        assertEquals(event.getNotification().getDeviceGuid(), device1);
        assertEquals(event.getNotification().getId(), Long.valueOf(0));
    });
    Set<String> names = c1.notifications.stream().map(n -> n.getNotification().getNotification())
            .collect(Collectors.toSet());
    assertThat(names, containsInAnyOrder("temperature", "vibration"));

    assertThat(c2.notifications, hasSize(1));
    NotificationEvent e = c2.notifications.stream().findFirst().get();
    assertNotNull(e.getNotification());
    assertEquals(e.getNotification().getDeviceGuid(), device2);
    assertEquals(e.getNotification().getId(), Long.valueOf(0));
    assertEquals(e.getNotification().getNotification(), "temperature");

    assertThat(c3.notifications, hasSize(2));
    c3.notifications.forEach(event -> {
        assertNotNull(event.getNotification());
        assertEquals(event.getNotification().getDeviceGuid(), device2);
        assertEquals(event.getNotification().getId(), Long.valueOf(0));
    });
    names = c3.notifications.stream().map(n -> n.getNotification().getNotification())
            .collect(Collectors.toSet());
    assertThat(names, containsInAnyOrder("temperature", "vibration"));

    assertThat(c4.notifications, hasSize(1));
    e = c4.notifications.stream().findFirst().get();
    assertNotNull(e.getNotification());
    assertEquals(e.getNotification().getDeviceGuid(), device1);
    assertEquals(e.getNotification().getId(), Long.valueOf(0));
    assertEquals(e.getNotification().getNotification(), "vibration");

    assertThat(c5.notifications, is(empty()));
}

From source file:org.terracotta.voter.TCVoterMain.java

protected void startVoter(Optional<Properties> connectionProps, String... hostPorts) {
    new ActiveVoter(ID, new CompletableFuture<>(), connectionProps, hostPorts).start();
}

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

public CompletableFuture<Boolean> deleteSegment(final String scope, final String stream,
        final int segmentNumber, final HostControllerStore hostControllerStore,
        final ConnectionFactory clientCF) {
    final CompletableFuture<Boolean> result = new CompletableFuture<>();
    final Controller.NodeUri uri = getSegmentUri(scope, stream, segmentNumber, hostControllerStore);

    final WireCommandType type = WireCommandType.DELETE_SEGMENT;

    final FailingReplyProcessor replyProcessor = new FailingReplyProcessor() {

        @Override/*from   w  w w  . j  a  v  a  2s. co  m*/
        public void connectionDropped() {
            result.completeExceptionally(
                    new WireCommandFailedException(type, WireCommandFailedException.Reason.ConnectionDropped));
        }

        @Override
        public void wrongHost(WireCommands.WrongHost wrongHost) {
            result.completeExceptionally(
                    new WireCommandFailedException(type, WireCommandFailedException.Reason.UnknownHost));
        }

        @Override
        public void noSuchSegment(WireCommands.NoSuchSegment noSuchSegment) {
            result.complete(true);
        }

        @Override
        public void segmentDeleted(WireCommands.SegmentDeleted segmentDeleted) {
            result.complete(true);
        }

        @Override
        public void processingFailure(Exception error) {
            result.completeExceptionally(error);
        }
    };

    WireCommands.DeleteSegment request = new WireCommands.DeleteSegment(idGenerator.get(),
            Segment.getScopedName(scope, stream, segmentNumber));
    sendRequestAsync(request, replyProcessor, result, clientCF, ModelHelper.encode(uri));
    return result;
}

From source file:org.apache.pulsar.compaction.CompactedTopicTest.java

/**
 * Build a compacted ledger, and return the id of the ledger, the position of the different
 * entries in the ledger, and a list of gaps, and the entry which should be returned after the gap.
 *//*from www  .  j a v a2 s.  c o  m*/
private Triple<Long, List<Pair<MessageIdData, Long>>, List<Pair<MessageIdData, Long>>> buildCompactedLedger(
        BookKeeper bk, int count) throws Exception {
    LedgerHandle lh = bk.createLedger(1, 1, Compactor.COMPACTED_TOPIC_LEDGER_DIGEST_TYPE,
            Compactor.COMPACTED_TOPIC_LEDGER_PASSWORD);
    List<Pair<MessageIdData, Long>> positions = new ArrayList<>();
    List<Pair<MessageIdData, Long>> idsInGaps = new ArrayList<>();

    AtomicLong ledgerIds = new AtomicLong(10L);
    AtomicLong entryIds = new AtomicLong(0L);
    CompletableFuture.allOf(IntStream.range(0, count).mapToObj((i) -> {
        List<MessageIdData> idsInGap = new ArrayList<MessageIdData>();
        if (r.nextInt(10) == 1) {
            long delta = r.nextInt(10) + 1;
            idsInGap.add(MessageIdData.newBuilder().setLedgerId(ledgerIds.get()).setEntryId(entryIds.get() + 1)
                    .build());
            ledgerIds.addAndGet(delta);
            entryIds.set(0);
        }
        long delta = r.nextInt(5);
        if (delta != 0) {
            idsInGap.add(MessageIdData.newBuilder().setLedgerId(ledgerIds.get()).setEntryId(entryIds.get() + 1)
                    .build());
        }
        MessageIdData id = MessageIdData.newBuilder().setLedgerId(ledgerIds.get())
                .setEntryId(entryIds.addAndGet(delta + 1)).build();

        @Cleanup
        RawMessage m = new RawMessageImpl(id, Unpooled.EMPTY_BUFFER);

        CompletableFuture<Void> f = new CompletableFuture<>();
        ByteBuf buffer = m.serialize();

        lh.asyncAddEntry(buffer, (rc, ledger, eid, ctx) -> {
            if (rc != BKException.Code.OK) {
                f.completeExceptionally(BKException.create(rc));
            } else {
                positions.add(Pair.of(id, eid));
                idsInGap.forEach((gid) -> idsInGaps.add(Pair.of(gid, eid)));
                f.complete(null);
            }
        }, null);
        return f;
    }).toArray(CompletableFuture[]::new)).get();
    lh.close();

    return Triple.of(lh.getId(), positions, idsInGaps);
}

From source file:com.hurence.logisland.engine.vanilla.stream.amqp.AmqpClientPipelineStream.java

private CompletableFuture<ProtonConnection> setupConnection() {
    CompletableFuture<ProtonConnection> completableFuture = new CompletableFuture<>();
    String hostname = streamContext.getPropertyValue(StreamOptions.CONNECTION_HOST).asString();
    int port = streamContext.getPropertyValue(StreamOptions.CONNECTION_PORT).asInteger();
    int credits = streamContext.getPropertyValue(StreamOptions.LINK_CREDITS).asInteger();

    String user = streamContext.getPropertyValue(StreamOptions.CONNECTION_AUTH_USERNAME).asString();
    String password = streamContext.getPropertyValue(StreamOptions.CONNECTION_AUTH_PASSWORD).asString();
    if (user != null && password != null) {
        options.addEnabledSaslMechanism("PLAIN");
    } else if (streamContext.getPropertyValue(StreamOptions.CONNECTION_AUTH_TLS_CERT).isSet()) {
        String tlsCert = streamContext.getPropertyValue(StreamOptions.CONNECTION_AUTH_TLS_CERT).asString();
        String tlsKey = streamContext.getPropertyValue(StreamOptions.CONNECTION_AUTH_TLS_KEY).asString();
        String caCert = streamContext.getPropertyValue(StreamOptions.CONNECTION_AUTH_CA_CERT).asString();
        options.addEnabledSaslMechanism("EXTERNAL").setHostnameVerificationAlgorithm("")
                .setPemKeyCertOptions(new PemKeyCertOptions().addCertPath(new File(tlsCert).getAbsolutePath())
                        .addKeyPath(new File(tlsKey).getAbsolutePath()));
        if (caCert != null) {
            options.setPemTrustOptions(new PemTrustOptions().addCertPath(new File(caCert).getAbsolutePath()));
        }/*from  www. ja  va 2  s.com*/

    }
    protonClient.connect(options, hostname, port, user, password, event -> {
        if (event.failed()) {
            handleConnectionFailure(false);
            completableFuture.completeExceptionally(event.cause());
            return;
        }
        connectionControl.connected();
        completableFuture.complete(event.result());
        protonConnection = event.result();
        String containerId = streamContext.getPropertyValue(StreamOptions.CONTAINER_ID).asString();
        if (containerId != null) {
            protonConnection.setContainer(containerId);
        }
        protonConnection.closeHandler(x -> {
            handleConnectionFailure(true);
        }).disconnectHandler(x -> {
            handleConnectionFailure(false);
        }).openHandler(onOpen -> {

            //setup the output path
            sender = protonConnection
                    .createSender(streamContext.getPropertyValue(StreamOptions.WRITE_TOPIC).asString());
            sender.setAutoDrained(true);
            sender.setAutoSettle(true);
            sender.open();

            //setup the input path
            receiver = protonConnection
                    .createReceiver(streamContext.getPropertyValue(StreamOptions.READ_TOPIC).asString());
            receiver.setPrefetch(credits);
            receiver.handler((delivery, message) -> {
                try {
                    Record record;
                    if (deserializer == null) {
                        record = RecordUtils.getKeyValueRecord(
                                StringUtils.defaultIfEmpty(message.getSubject(), ""),
                                new String(extractBodyContent(message.getBody())));
                    } else {
                        record = deserializer
                                .deserialize(new ByteArrayInputStream(extractBodyContent(message.getBody())));
                        if (!record.hasField(FieldDictionary.RECORD_KEY)) {
                            record.setField(FieldDictionary.RECORD_KEY, FieldType.STRING, message.getSubject());
                        }
                    }

                    Collection<Record> r = Collections.singleton(record);
                    for (ProcessContext processContext : streamContext.getProcessContexts()) {
                        r = processContext.getProcessor().process(processContext, r);
                    }
                    List<Message> toAdd = new ArrayList<>();
                    for (Record out : r) {
                        ByteArrayOutputStream byteOutputStream = new ByteArrayOutputStream();
                        serializer.serialize(byteOutputStream, out);
                        Message mo = ProtonHelper.message();
                        if (out.hasField(FieldDictionary.RECORD_KEY)) {
                            mo.setSubject(out.getField(FieldDictionary.RECORD_KEY).asString());
                        }
                        if (StringUtils.isNotBlank(contentType)) {
                            mo.setContentType(contentType);
                        }
                        mo.setMessageId(out.getId());
                        mo.setBody(new Data(Binary.create(ByteBuffer.wrap(byteOutputStream.toByteArray()))));
                        toAdd.add(mo);
                    }
                    toAdd.forEach(sender::send);
                    delivery.disposition(Accepted.getInstance(), true);
                } catch (Exception e) {
                    Rejected rejected = new Rejected();
                    delivery.disposition(rejected, true);
                    getLogger().warn("Unable to process message : " + e.getMessage());
                }
            }).open();

        }).open();

    });
    return completableFuture;
}

From source file:org.apache.pulsar.broker.authorization.PulsarAuthorizationProvider.java

/**
 * Check if the specified role has permission to receive messages from the specified fully qualified topic
 * name./*from  w w w . jav  a  2 s . c  o  m*/
 *
 * @param topicName
 *            the fully qualified topic name associated with the topic.
 * @param role
 *            the app id used to receive messages from the topic.
 * @param subscription
 *            the subscription name defined by the client
 */
@Override
public CompletableFuture<Boolean> canConsumeAsync(TopicName topicName, String role,
        AuthenticationDataSource authenticationData, String subscription) {
    CompletableFuture<Boolean> permissionFuture = new CompletableFuture<>();
    try {
        configCache.policiesCache().getAsync(POLICY_ROOT + topicName.getNamespace()).thenAccept(policies -> {
            if (!policies.isPresent()) {
                if (log.isDebugEnabled()) {
                    log.debug("Policies node couldn't be found for topic : {}", topicName);
                }
            } else {
                if (isNotBlank(subscription)) {
                    // validate if role is authorize to access subscription. (skip validatation if authorization
                    // list is empty)
                    Set<String> roles = policies.get().auth_policies.subscription_auth_roles.get(subscription);
                    if (roles != null && !roles.isEmpty() && !roles.contains(role)) {
                        log.warn("[{}] is not authorized to subscribe on {}-{}", role, topicName, subscription);
                        PulsarServerException ex = new PulsarServerException(
                                String.format("%s is not authorized to access subscription %s on topic %s",
                                        role, subscription, topicName));
                        permissionFuture.complete(false);
                        return;
                    }

                    // validate if subscription-auth mode is configured
                    switch (policies.get().subscription_auth_mode) {
                    case Prefix:
                        if (!subscription.startsWith(role)) {
                            PulsarServerException ex = new PulsarServerException(String.format(
                                    "Failed to create consumer - The subscription name needs to be prefixed by the authentication role, like %s-xxxx for topic: %s",
                                    role, topicName));
                            permissionFuture.completeExceptionally(ex);
                            return;
                        }
                        break;
                    default:
                        break;
                    }
                }
            }
            // check namespace and topic level consume-permissions
            checkAuthorization(topicName, role, AuthAction.consume).thenAccept(isAuthorized -> {
                permissionFuture.complete(isAuthorized);
            });
        }).exceptionally(ex -> {
            log.warn("Client with Role - {} failed to get permissions for topic - {}. {}", role, topicName,
                    ex.getMessage());
            permissionFuture.completeExceptionally(ex);
            return null;
        });
    } catch (Exception e) {
        log.warn("Client  with Role - {} failed to get permissions for topic - {}. {}", role, topicName,
                e.getMessage());
        permissionFuture.completeExceptionally(e);
    }
    return permissionFuture;
}

From source file:com.canoo.dolphin.client.impl.ClientContextImpl.java

@Override
public synchronized CompletableFuture<Void> disconnect() {
    checkForInitializedState();//from  w ww  .j a v a 2s .  c  o  m
    state = State.DESTROYING;
    clientDolphin.stopPushListening();
    final CompletableFuture<Void> result = new CompletableFuture<>();

    Executors.newSingleThreadExecutor().execute(() -> {
        state = State.DESTROYED;
        dolphinCommandHandler.invokeDolphinCommand(PlatformConstants.DESTROY_CONTEXT_COMMAND_NAME)
                .handle((v, t) -> {
                    if (t != null) {
                        result.completeExceptionally(new DolphinRemotingException("Can't disconnect", t));
                    } else {
                        result.complete(null);
                    }
                    return null;
                });
        //TODO: Stop communication in client connector
    });

    return result;
}

From source file:org.apache.pulsar.client.impl.HttpLookupService.java

@Override
public CompletableFuture<List<String>> getTopicsUnderNamespace(NamespaceName namespace, Mode mode) {
    CompletableFuture<List<String>> future = new CompletableFuture<>();

    String format = namespace.isV2() ? "admin/v2/namespaces/%s/topics?mode=%s"
            : "admin/namespaces/%s/destinations?mode=%s";
    httpClient.get(String.format(format, namespace, mode.toString()), String[].class).thenAccept(topics -> {
        List<String> result = Lists.newArrayList();
        // do not keep partition part of topic name
        Arrays.asList(topics).forEach(topic -> {
            String filtered = TopicName.get(topic).getPartitionedTopicName();
            if (!result.contains(filtered)) {
                result.add(filtered);/*from w ww.  j av a  2 s .c o m*/
            }
        });
        future.complete(result);
    }).exceptionally(ex -> {
        log.warn("Failed to getTopicsUnderNamespace namespace: {}.", namespace, ex.getMessage());
        future.completeExceptionally(ex);
        return null;
    });
    return future;
}

From source file:org.apache.bookkeeper.meta.MockLedgerManager.java

@Override
public CompletableFuture<Versioned<LedgerMetadata>> readLedgerMetadata(long ledgerId) {
    CompletableFuture<Versioned<LedgerMetadata>> promise = new CompletableFuture<>();
    executor.submit(() -> {/*  www  .  java 2  s.c o  m*/
        try {
            Versioned<LedgerMetadata> metadata = readMetadata(ledgerId);
            if (metadata == null) {
                executeCallback(
                        () -> promise.completeExceptionally(new BKException.BKNoSuchLedgerExistsException()));
            } else {
                executeCallback(() -> promise.complete(metadata));
            }
        } catch (Exception e) {
            LOG.error("Error reading metadata", e);
            executeCallback(() -> promise.completeExceptionally(new BKException.MetaStoreException()));
        }
    });
    return promise;
}

From source file:org.jaqpot.core.service.client.jpdi.JPDIClientImpl.java

@Override
public Future<Model> train(Dataset dataset, Algorithm algorithm, Map<String, Object> parameters,
        String predictionFeature, MetaInfo modelMeta, String taskId) {

    CompletableFuture<Model> futureModel = new CompletableFuture<>();

    TrainingRequest trainingRequest = new TrainingRequest();
    trainingRequest.setDataset(dataset);
    trainingRequest.setParameters(parameters);
    trainingRequest.setPredictionFeature(predictionFeature);
    //        String trainingRequestString = serializer.write(trainingRequest);

    final HttpPost request = new HttpPost(algorithm.getTrainingService());

    PipedOutputStream out = new PipedOutputStream();
    PipedInputStream in;//from  www . j a  v  a  2s  .c  o m
    try {
        in = new PipedInputStream(out);
    } catch (IOException ex) {
        futureModel.completeExceptionally(ex);
        return futureModel;
    }
    InputStreamEntity entity = new InputStreamEntity(in, ContentType.APPLICATION_JSON);
    entity.setChunked(true);

    request.setEntity(entity);
    request.addHeader("Accept", "application/json");

    Future futureResponse = client.execute(request, new FutureCallback<HttpResponse>() {

        @Override
        public void completed(final HttpResponse response) {
            futureMap.remove(taskId);
            int status = response.getStatusLine().getStatusCode();
            try {
                InputStream responseStream = response.getEntity().getContent();

                switch (status) {
                case 200:
                case 201:
                    TrainingResponse trainingResponse = serializer.parse(responseStream,
                            TrainingResponse.class);
                    Model model = new Model();
                    model.setId(randomStringGenerator.nextString(20));
                    model.setActualModel(trainingResponse.getRawModel());
                    model.setPmmlModel(trainingResponse.getPmmlModel());
                    model.setAdditionalInfo(trainingResponse.getAdditionalInfo());
                    model.setAlgorithm(algorithm);
                    model.setParameters(parameters);
                    model.setDatasetUri(dataset != null ? dataset.getDatasetURI() : null);

                    //Check if independedFeatures of model exist in dataset
                    List<String> filteredIndependedFeatures = new ArrayList<String>();

                    if (dataset != null && dataset.getFeatures() != null
                            && trainingResponse.getIndependentFeatures() != null)
                        for (String feature : trainingResponse.getIndependentFeatures()) {
                            for (FeatureInfo featureInfo : dataset.getFeatures()) {
                                if (feature.equals(featureInfo.getURI()))
                                    filteredIndependedFeatures.add(feature);
                            }
                        }

                    model.setIndependentFeatures(filteredIndependedFeatures);
                    model.setDependentFeatures(Arrays.asList(predictionFeature));
                    model.setMeta(modelMeta);

                    List<String> predictedFeatures = new ArrayList<>();
                    for (String featureTitle : trainingResponse.getPredictedFeatures()) {
                        Feature predictionFeatureResource = featureHandler.findByTitleAndSource(featureTitle,
                                "algorithm/" + algorithm.getId());
                        if (predictionFeatureResource == null) {
                            // Create the prediction features (POST /feature)
                            String predFeatID = randomStringGenerator.nextString(12);
                            predictionFeatureResource = new Feature();
                            predictionFeatureResource.setId(predFeatID);
                            predictionFeatureResource.setPredictorFor(predictionFeature);
                            predictionFeatureResource.setMeta(MetaInfoBuilder.builder()
                                    .addSources(
                                            /*messageBody.get("base_uri") + */"algorithm/" + algorithm.getId())
                                    .addComments("Feature created to hold predictions by algorithm with ID "
                                            + algorithm.getId())
                                    .addTitles(featureTitle).addSeeAlso(predictionFeature)
                                    .addCreators(algorithm.getMeta().getCreators()).build());
                            /* Create feature */
                            featureHandler.create(predictionFeatureResource);
                        }
                        predictedFeatures.add(baseURI + "feature/" + predictionFeatureResource.getId());
                    }
                    model.setPredictedFeatures(predictedFeatures);
                    futureModel.complete(model);
                    break;
                case 400:
                    String message = new BufferedReader(new InputStreamReader(responseStream)).lines()
                            .collect(Collectors.joining("\n"));
                    futureModel.completeExceptionally(new BadRequestException(message));
                    break;
                case 500:
                    message = new BufferedReader(new InputStreamReader(responseStream)).lines()
                            .collect(Collectors.joining("\n"));
                    futureModel.completeExceptionally(new InternalServerErrorException(message));
                    break;
                default:
                    message = new BufferedReader(new InputStreamReader(responseStream)).lines()
                            .collect(Collectors.joining("\n"));
                    futureModel.completeExceptionally(new InternalServerErrorException(message));
                }
            } catch (IOException | UnsupportedOperationException ex) {
                futureModel.completeExceptionally(ex);
            }
        }

        @Override
        public void failed(final Exception ex) {
            futureMap.remove(taskId);
            futureModel.completeExceptionally(ex);
        }

        @Override
        public void cancelled() {
            futureMap.remove(taskId);
            futureModel.cancel(true);
        }

    });

    serializer.write(trainingRequest, out);
    try {
        out.close();
    } catch (IOException ex) {
        futureModel.completeExceptionally(ex);
    }

    futureMap.put(taskId, futureResponse);
    return futureModel;
}