Example usage for io.vertx.core Future future

Introduction

In this page you can find the example usage for io.vertx.core Future future.

Prototype

future

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Usage

From source file:org.eclipse.hono.client.impl.HonoClientImpl.java

License:Open Source License

@Override
public HonoClient createEventConsumer(final String tenantId, final int prefetch,
        final BiConsumer<ProtonDelivery, Message> eventConsumer,
        final Handler<AsyncResult<MessageConsumer>> creationHandler) {

    // register a handler to be notified if the underlying connection to the server fails
    // so that we can fail the result handler passed in
    final Handler<Void> connectionFailureHandler = connectionLost -> {
        creationHandler.handle(Future.failedFuture("connection to server lost"));
    };// www. j  a  v  a  2s  . c o  m
    creationRequests.add(connectionFailureHandler);

    Future<MessageConsumer> consumerTracker = Future.future();
    consumerTracker.setHandler(attempt -> {
        creationRequests.remove(connectionFailureHandler);
        creationHandler.handle(attempt);
    });
    checkConnection().compose(
            connected -> EventConsumerImpl.create(context, connection, tenantId,
                    connectionFactory.getPathSeparator(), prefetch, eventConsumer, consumerTracker.completer()),
            consumerTracker);
    return this;
}

From source file:org.eclipse.hono.client.impl.HonoClientImpl.java

License:Open Source License

private HonoClient createEventSender(final String tenantId, final String deviceId,
        final Handler<AsyncResult<MessageSender>> creationHandler) {

    Future<MessageSender> senderTracker = Future.future();
    senderTracker.setHandler(creationHandler);
    checkConnection().compose(/*w  w  w  .ja v a  2s .  co  m*/
            connected -> EventSenderImpl.create(context, connection, tenantId, deviceId, onSenderClosed -> {
                activeSenders.remove(EventSenderImpl.getTargetAddress(tenantId, deviceId));
            }, senderTracker.completer()), senderTracker);
    return this;
}

From source file:org.eclipse.hono.client.impl.TenantClientImpl.java

License:Open Source License

/**
 * {@inheritDoc}//from   w w  w .ja  v  a  2s.com
 */
@Override
public final Future<TenantObject> get(final String tenantId) {

    final TriTuple<TenantAction, String, Object> key = TriTuple.of(TenantAction.get, tenantId, null);

    return getResponseFromCache(key).recover(t -> {
        final Future<TenantResult<TenantObject>> tenantResult = Future.future();
        final JsonObject payload = new JsonObject().put(TenantConstants.FIELD_PAYLOAD_TENANT_ID, tenantId);
        createAndSendRequest(TenantConstants.TenantAction.get.toString(),
                customizeRequestApplicationProperties(), payload.toBuffer(), tenantResult.completer(), key);
        return tenantResult;
    }).map(tenantResult -> {
        switch (tenantResult.getStatus()) {
        case HttpURLConnection.HTTP_OK:
            return tenantResult.getPayload();
        default:
            throw StatusCodeMapper.from(tenantResult);
        }
    });
}

From source file:org.eclipse.hono.client.impl.TenantClientImpl.java

License:Open Source License

/**
 * {@inheritDoc}//w ww  .java 2  s.  c o  m
 */
@Override
public final Future<TenantObject> get(final X500Principal subjectDn) {

    final TriTuple<TenantAction, X500Principal, Object> key = TriTuple.of(TenantAction.get, subjectDn, null);

    return getResponseFromCache(key).recover(t -> {
        final Future<TenantResult<TenantObject>> tenantResult = Future.future();
        final JsonObject payload = new JsonObject().put(TenantConstants.FIELD_PAYLOAD_SUBJECT_DN,
                subjectDn.getName(X500Principal.RFC2253));
        createAndSendRequest(TenantConstants.TenantAction.get.toString(),
                customizeRequestApplicationProperties(), payload.toBuffer(), tenantResult.completer(), key);
        return tenantResult;
    }).map(tenantResult -> {
        switch (tenantResult.getStatus()) {
        case HttpURLConnection.HTTP_OK:
            return tenantResult.getPayload();
        default:
            throw StatusCodeMapper.from(tenantResult);
        }
    });
}

From source file:org.eclipse.hono.deviceregistry.Application.java

License:Open Source License

@Override
protected final Future<Void> deployRequiredVerticles(int maxInstances) {

    Future<Void> result = Future.future();
    CompositeFuture.all(deployAuthenticationService(), // we only need 1 authentication service
            deployRegistrationService(), deployCredentialsService()).setHandler(ar -> {
                if (ar.succeeded()) {
                    result.complete();//from  w  w  w . j  a  v a 2s  . co  m
                } else {
                    result.fail(ar.cause());
                }
            });
    return result;
}

From source file:org.eclipse.hono.deviceregistry.Application.java

License:Open Source License

private Future<String> deployCredentialsService() {
    Future<String> result = Future.future();
    if (credentialsService != null) {
        log.info("Starting credentials service {}", credentialsService);
        getVertx().deployVerticle(credentialsService, result.completer());
    } else {/*  ww  w.j a v a2 s .c o m*/
        result.complete();
    }
    return result;
}

From source file:org.eclipse.hono.deviceregistry.Application.java

License:Open Source License

private Future<String> deployAuthenticationService() {
    Future<String> result = Future.future();
    if (!Verticle.class.isInstance(authenticationService)) {
        result.fail("authentication service is not a verticle");
    } else {/*from  www. j  av  a 2 s  .c om*/
        log.info("Starting authentication service {}", authenticationService);
        getVertx().deployVerticle((Verticle) authenticationService, result.completer());
    }
    return result;
}

From source file:org.eclipse.hono.deviceregistry.Application.java

License:Open Source License

private Future<String> deployRegistrationService() {
    log.info("Starting registration service {}", registrationService);
    Future<String> result = Future.future();
    getVertx().deployVerticle(registrationService, result.completer());
    return result;
}

From source file:org.eclipse.hono.deviceregistry.FileBasedCredentialsService.java

License:Open Source License

@Override
protected void doStart(final Future<Void> startFuture) throws Exception {
    if (!running) {
        loadCredentials().compose(s -> {
            if (getConfig().isSaveToFile()) {
                log.info("saving credentials to file every 3 seconds");
                vertx.setPeriodic(3000, saveIdentities -> {
                    saveToFile(Future.future());
                });//from  ww w . j a  v a2  s.  c om
            } else {
                log.info("persistence is disabled, will not save credentials to file");
            }
            running = true;
            startFuture.complete();
        }, startFuture);
    } else {
        startFuture.complete();
    }
}

From source file:org.eclipse.hono.deviceregistry.FileBasedCredentialsService.java

License:Open Source License

Future<Void> loadCredentials() {
    Future<Void> result = Future.future();
    if (getConfig().getCredentialsFilename() == null) {
        result.fail(new IllegalStateException("credentials filename is not set"));
    } else {// w w  w  .j  a  va2 s  .c o  m
        final FileSystem fs = vertx.fileSystem();
        log.debug("trying to load credentials information from file {}", getConfig().getCredentialsFilename());

        if (fs.existsBlocking(getConfig().getCredentialsFilename())) {
            log.info("loading credentials from file [{}]", getConfig().getCredentialsFilename());
            fs.readFile(getConfig().getCredentialsFilename(), readAttempt -> {
                if (readAttempt.succeeded()) {
                    JsonArray allObjects = readAttempt.result().toJsonArray();
                    parseCredentials(allObjects);
                    result.complete();
                } else {
                    result.fail(readAttempt.cause());
                }
            });
        } else {
            log.debug("credentials file [{}] does not exist (yet)", getConfig().getCredentialsFilename());
            result.complete();
        }
    }
    return result;
}