Examples with Future io.vertx.core.Future used on opensource projects

Example 16 with Future

use of io.vertx.core.Future in project hono by eclipse.

the class FileBasedTenantService method saveToFile.

Future<Void> saveToFile() {
    if (!getConfig().isSaveToFile()) {
        return Future.succeededFuture();
    } else if (dirty) {
        return checkFileExists(true).compose(s -> {
            final JsonArray tenantsJson = new JsonArray();
            tenants.values().stream().forEach(tenant -> {
                tenantsJson.add(JsonObject.mapFrom(tenant));
            });
            final Future<Void> writeHandler = Future.future();
            vertx.fileSystem().writeFile(getConfig().getFilename(), Buffer.factory.buffer(tenantsJson.encodePrettily()), writeHandler.completer());
            return writeHandler.map(ok -> {
                dirty = false;
                log.trace("successfully wrote {} tenants to file {}", tenantsJson.size(), getConfig().getFilename());
                return (Void) null;
            }).otherwise(t -> {
                log.warn("could not write tenants to file {}", getConfig().getFilename(), t);
                return (Void) null;
            });
        });
    } else {
        log.trace("tenants registry does not need to be persisted");
        return Future.succeededFuture();
    }
}

Example 17 with Future

use of io.vertx.core.Future in project hono by eclipse.

the class FileBasedCredentialsServiceTest method testDoStartLoadsCredentials.

/**
 * Verifies that credentials are successfully loaded from file during startup.
 *
 * @param ctx The test context.
 */
@SuppressWarnings({ "unchecked", "rawtypes" })
@Test
public void testDoStartLoadsCredentials(final TestContext ctx) {
    // GIVEN a service configured with a file name
    props.setFilename(FILE_NAME);
    when(fileSystem.existsBlocking(props.getFilename())).thenReturn(Boolean.TRUE);
    doAnswer(invocation -> {
        final Buffer data = DeviceRegistryTestUtils.readFile(FILE_NAME);
        Handler handler = invocation.getArgument(1);
        handler.handle(Future.succeededFuture(data));
        return null;
    }).when(fileSystem).readFile(eq(props.getFilename()), any(Handler.class));
    // WHEN the service is started
    Async startup = ctx.async();
    Future<Void> startFuture = Future.future();
    startFuture.setHandler(ctx.asyncAssertSuccess(s -> {
        startup.complete();
    }));
    svc.doStart(startFuture);
    // THEN the credentials from the file are loaded
    startup.await(2000);
    assertRegistered(svc, Constants.DEFAULT_TENANT, "sensor1", CredentialsConstants.SECRETS_TYPE_HASHED_PASSWORD, ctx);
}

Example 18 with Future

use of io.vertx.core.Future in project hono by eclipse.

the class FileBasedCredentialsServiceTest method testDoStartIgnoresMalformedJson.

/**
 * Verifies that the credentials service successfully starts up even if
 * the file to read credentials from contains malformed JSON.
 *
 * @param ctx The vert.x context.
 */
@SuppressWarnings({ "unchecked", "rawtypes" })
@Test
public void testDoStartIgnoresMalformedJson(final TestContext ctx) {
    // GIVEN a registration service configured to read data from a file
    // that contains malformed JSON
    props.setFilename(FILE_NAME);
    when(fileSystem.existsBlocking(FILE_NAME)).thenReturn(Boolean.TRUE);
    doAnswer(invocation -> {
        final Buffer data = mock(Buffer.class);
        when(data.getBytes()).thenReturn("NO JSON".getBytes(StandardCharsets.UTF_8));
        Handler handler = invocation.getArgument(1);
        handler.handle(Future.succeededFuture(data));
        return null;
    }).when(fileSystem).readFile(eq(props.getFilename()), any(Handler.class));
    // WHEN starting the service
    Async startup = ctx.async();
    Future<Void> startupTracker = Future.future();
    startupTracker.setHandler(ctx.asyncAssertSuccess(started -> {
        startup.complete();
    }));
    svc.doStart(startupTracker);
    // THEN startup succeeds
    startup.await(2000);
}

Example 19 with Future

use of io.vertx.core.Future in project hono by eclipse.

the class FileBasedRegistrationServiceTest method testDoStartIgnoresMalformedJson.

/**
 * Verifies that the registration service successfully starts up even if
 * the file to read device information from contains malformed JSON.
 *
 * @param ctx The vert.x context.
 */
@SuppressWarnings({ "unchecked", "rawtypes" })
@Test
public void testDoStartIgnoresMalformedJson(final TestContext ctx) {
    // GIVEN a registration service configured to read data from a file
    // that contains malformed JSON
    when(fileSystem.existsBlocking(props.getFilename())).thenReturn(Boolean.TRUE);
    doAnswer(invocation -> {
        final Buffer data = mock(Buffer.class);
        when(data.getBytes()).thenReturn("NO JSON".getBytes(StandardCharsets.UTF_8));
        Handler handler = invocation.getArgument(1);
        handler.handle(Future.succeededFuture(data));
        return null;
    }).when(fileSystem).readFile(eq(props.getFilename()), any(Handler.class));
    // WHEN starting the service
    Async startup = ctx.async();
    Future<Void> startupTracker = Future.future();
    startupTracker.setHandler(ctx.asyncAssertSuccess(started -> {
        startup.complete();
    }));
    registrationService.doStart(startupTracker);
    // THEN startup succeeds
    startup.await();
}

Example 20 with Future

use of io.vertx.core.Future in project hono by eclipse.

the class FileBasedRegistrationServiceTest method testDoStartCreatesFile.

/**
 * Verifies that the registration service creates a file for persisting device registration
 * data if it does not exist yet during startup.
 *
 * @param ctx The vert.x context.
 */
@SuppressWarnings({ "unchecked", "rawtypes" })
@Test
public void testDoStartCreatesFile(final TestContext ctx) {
    // GIVEN a registration service configured to persist data to a not yet existing file
    props.setSaveToFile(true);
    when(fileSystem.existsBlocking(props.getFilename())).thenReturn(Boolean.FALSE);
    doAnswer(invocation -> {
        Handler handler = invocation.getArgument(1);
        handler.handle(Future.succeededFuture());
        return null;
    }).when(fileSystem).createFile(eq(props.getFilename()), any(Handler.class));
    doAnswer(invocation -> {
        Handler handler = invocation.getArgument(1);
        handler.handle(Future.failedFuture("malformed file"));
        return null;
    }).when(fileSystem).readFile(eq(props.getFilename()), any(Handler.class));
    // WHEN starting the service
    Async startup = ctx.async();
    Future<Void> startupTracker = Future.future();
    startupTracker.setHandler(ctx.asyncAssertSuccess(started -> {
        startup.complete();
    }));
    registrationService.doStart(startupTracker);
    // THEN the file gets created
    startup.await();
    verify(fileSystem).createFile(eq(props.getFilename()), any(Handler.class));
}