Example usage for java.util Optional isPresent

Introduction

In this page you can find the example usage for java.util Optional isPresent.

Prototype

public boolean isPresent()

Source Link

Document

If a value is present, returns true , otherwise false .

Usage

From source file:com.lithium.flow.shell.tunnel.ShellTunneler.java

@Nonnull
public Tunnel getTunnel(@Nonnull String host, int port, @Nullable String through) throws IOException {
    List<Login> logins = Lists.newArrayList();

    Login endLogin = access.getLogin(host);
    logins.add(endLogin);/*from ww  w  .j  ava2s  . c  om*/

    if (through != null) {
        logins.add(access.getLogin(through));
    }

    Optional<String> match = config.getMatch("shell.tunnels", endLogin.getHost());
    if (match.isPresent()) {
        for (String tunnel : Splitter.on(';').split(match.get())) {
            logins.add(access.getLogin(tunnel));
        }
    }

    Collections.reverse(logins);

    Tunnel tunnel = null;
    for (int i = 0; i < logins.size() - 1; i++) {
        Login thisLogin = logins.get(i);
        Login nextLogin = logins.get(i + 1);
        if (i == logins.size() - 2) {
            nextLogin = nextLogin.toBuilder().setPort(port).build();
        }

        log.debug("tunneling through {} to {}", thisLogin, nextLogin.getHostAndPort());

        Login login = thisLogin;
        if (tunnel != null) {
            login = login.toBuilder().setHost("localhost").setPort(tunnel.getPort()).build();
        }

        String message = login.getKeyPath() != null ? login.getKeyPath() : thisLogin.getDisplayString();
        Function<Boolean, String> pass = retry -> access.getPrompt().prompt(message, message, true, retry);
        login = login.toBuilder().setPass(pass).build();

        tunnel = shore.getShell(login).tunnel(0, nextLogin.getHost(), nextLogin.getPortOrDefault(22));
    }

    if (tunnel != null) {
        tunnels.add(tunnel);
        return tunnel;
    } else {
        return new NoTunnel(host, port);
    }
}

From source file:ddf.catalog.validation.impl.validator.MatchAnyValidator.java

private List<AttributeValidationReport> validateAttributeSerializable(String attributeName,
        Serializable serializable) {
    Attribute newAttribute = new AttributeImpl(attributeName, serializable);
    List<AttributeValidationReport> validationReportList = new ArrayList<>();

    for (AttributeValidator attributeValidator : validators) {
        Optional<AttributeValidationReport> attributeValidationReport = attributeValidator
                .validate(newAttribute);
        if (attributeValidationReport.isPresent()) {
            validationReportList.add(attributeValidationReport.get());
        }//  www  .j a  va  2  s  .  c  om
    }

    return validationReportList;
}

From source file:com.netflix.spectator.aws.SpectatorRequestMetricCollectorTest.java

@Test
public void testMetricCollection() {
    execRequest("http://foo", 200);

    //then/* w w w  .  j  a  v  a2 s  .  c  o m*/
    List<Meter> allMetrics = new ArrayList<>();
    registry.iterator().forEachRemaining(allMetrics::add);

    assertEquals(2, allMetrics.size());
    Optional<Timer> expectedTimer = registry.timers().findFirst();
    assertTrue(expectedTimer.isPresent());
    Timer timer = expectedTimer.get();
    assertEquals(1, timer.count());
    assertEquals(100000, timer.totalTime());

    Optional<Counter> expectedCounter = registry.counters().findFirst();
    assertTrue(expectedCounter.isPresent());
    assertEquals(12345L, expectedCounter.get().count());
}

From source file:com.astamuse.asta4d.web.form.flow.base.StepAwaredValidationFormHelper.java

static final Object getValidationTargetByAnnotation(Object form, String step) {
    String cacheKey = step + "@" + form.getClass().getName();
    Optional<Field> oField = ValidationTargetFieldCache.get(cacheKey);

    if (oField == null) {
        List<Field> list = new ArrayList<>(ClassUtil.retrieveAllFieldsIncludeAllSuperClasses(form.getClass()));
        Iterator<Field> it = list.iterator();
        while (it.hasNext()) {
            Field f = it.next();//  w w  w .j  a va  2  s .c  o  m
            StepAwaredValidationTarget vtAnno = f.getAnnotation(StepAwaredValidationTarget.class);
            if (vtAnno == null) {
                continue;
            }
            String representingStep = vtAnno.value();
            if (step.equals(representingStep)) {
                oField = Optional.of(f);
                break;
            }
        }
        if (oField == null) {
            oField = Optional.empty();
        }
        if (Configuration.getConfiguration().isCacheEnable()) {
            Map<String, Optional<Field>> newCache = new HashMap<>(ValidationTargetFieldCache);
            newCache.put(cacheKey, oField);
            ValidationTargetFieldCache = newCache;
        }
    }

    if (oField.isPresent()) {
        try {
            return FieldUtils.readField(oField.get(), form, true);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        }
    } else {
        return form;
    }
}

From source file:com.netflix.spinnaker.clouddriver.kubernetes.v2.caching.view.provider.KubernetesV2InstanceProvider.java

@Override
public KubernetesV2Instance getInstance(String account, String location, String fullName) {
    Pair<KubernetesKind, String> parsedName;
    try {/* w  w w .j  a va2 s .  co m*/
        parsedName = KubernetesManifest.fromFullResourceName(fullName);
    } catch (Exception e) {
        return null;
    }

    KubernetesKind kind = parsedName.getLeft();
    String name = parsedName.getRight();
    String key = Keys.infrastructure(kind, account, location, name);

    Optional<CacheData> optionalInstanceData = cacheUtils.getSingleEntry(kind.toString(), key);
    if (!optionalInstanceData.isPresent()) {
        return null;
    }

    CacheData instanceData = optionalInstanceData.get();

    return KubernetesV2Instance.fromCacheData(instanceData);
}

From source file:io.gravitee.gateway.env.GatewayConfigurationTest.java

@Test
public void shouldReturnTenantFromSystemProperty() {
    System.setProperty(GatewayConfiguration.MULTI_TENANT_SYSTEM_PROPERTY, "europe");
    gatewayConfiguration.afterPropertiesSet();

    Optional<String> tenantOpt = gatewayConfiguration.tenant();
    Assert.assertTrue(tenantOpt.isPresent());

    Assert.assertEquals("europe", tenantOpt.get());
}

From source file:io.gravitee.gateway.env.GatewayConfigurationTest.java

@Test
public void shouldReturnTenantFromConfiguration() {
    Mockito.when(environment.getProperty(GatewayConfiguration.MULTI_TENANT_CONFIGURATION)).thenReturn("europe");
    gatewayConfiguration.afterPropertiesSet();

    Optional<String> tenantOpt = gatewayConfiguration.tenant();
    Assert.assertTrue(tenantOpt.isPresent());

    Assert.assertEquals("europe", tenantOpt.get());
}

From source file:uk.gov.hmrc.controllers.HelloWorldController.java

@RequestMapping("/oauth20/callback")
public String callback(HttpSession session, @RequestParam("code") Optional<String> code,
        @RequestParam("error") Optional<String> error) {
    if (!code.isPresent()) {
        throw new RuntimeException("Couldn't get Authorization code: " + error.orElse("unknown_reason"));
    }/*from ww  w.  j av a2  s.  com*/
    try {
        Token token = oauthService.getToken(code.get());
        session.setAttribute("userToken", token);
        return "redirect:/hello-user";
    } catch (Exception e) {
        throw new RuntimeException("Failed to get Token", e);
    }
}

From source file:com.teradata.benchto.driver.graphite.GraphiteMetricsLoader.java

private void addMeanMaxMeasurements(Map<String, double[]> loadedMetrics, List<Measurement> measurements,
        String metricName, String unit) {
    Optional<StatisticalSummary> statistics = getStats(loadedMetrics, metricName);
    if (statistics.isPresent()) {
        measurements.add(/* w  w  w  .  j av  a  2 s.co m*/
                Measurement.measurement("cluster-" + metricName + "_max", unit, statistics.get().getMax()));
        measurements.add(
                Measurement.measurement("cluster-" + metricName + "_mean", unit, statistics.get().getMean()));
    }
}

From source file:com.formkiq.core.form.bean.FormJSONDateFieldInterceptor.java

@Override
public boolean isSupported(final Class<?> clazz, final FormJSON form) {
    Optional<FormJSONField> inserted = FormFinder.findValueByKey(form, "insertedDate");
    Optional<FormJSONField> updated = FormFinder.findValueByKey(form, "updatedDate");

    return (inserted.isPresent() && isEmpty(inserted.get().getValue()) || updated.isPresent());
}