Example usage for java.util Collections singleton

Introduction

In this page you can find the example usage for java.util Collections singleton.

Prototype

public static <T> Set<T> singleton(T o)

Source Link

Document

Returns an immutable set containing only the specified object.

Usage

From source file:eu.europa.ec.fisheries.uvms.rules.service.bean.ExchangeRuleServiceBean.java

@Override
public boolean identificationRefExists(String refGuid, String... typeRefType) {
    Boolean faQueryIdentificationExists = false;
    try {//w  ww. ja v  a2s  .  c om
        LogRefIdByTypeExistsRequest existsRequest = new LogRefIdByTypeExistsRequest();
        for (String refType : typeRefType) {
            existsRequest.getRefTypes().add(EnumUtils.getEnum(TypeRefType.class, refType));
        }
        existsRequest.getRefTypes().removeAll(Collections.singleton(null));
        existsRequest.setRefGuid(refGuid);
        existsRequest.setMethod(ExchangeModuleMethod.LOG_REF_ID_BY_TYPE_EXISTS);
        String jaxBObjectToString = marshallJaxBObjectToString(existsRequest);
        String jmsMessageID = producer.sendDataSourceMessage(jaxBObjectToString, EXCHANGE);
        TextMessage message = consumer.getMessage(jmsMessageID, TextMessage.class);
        String text = message.getText();
        LogRefIdByTypeExistsResponse response = unMarshallMessage(text, LogRefIdByTypeExistsResponse.class);
        faQueryIdentificationExists = response.getRefGuid() != null;

    } catch (JAXBException | MessageException | JMSException e) {
        log.error(e.getMessage(), e);
    }
    return faQueryIdentificationExists;
}

From source file:info.magnolia.ui.api.app.registry.AppDescriptorRegistry.java

@Override
public void register(DefinitionProvider<AppDescriptor> provider) {
    super.register(provider);
    sendEvent(AppRegistryEventType.REGISTERED, Collections.singleton(provider.getMetadata()));
}

From source file:com.opengamma.financial.analytics.PositionOrTradeScalingFunction.java

@Override
public Set<ValueSpecification> getResults(final FunctionCompilationContext context,
        final ComputationTarget target) {
    return Collections.singleton(
            new ValueSpecification(_requirementName, target.toSpecification(), ValueProperties.all()));
}

From source file:edu.uci.ics.jung.algorithms.blockmodel.StructurallyEquivalent.java

public VertexPartition<V, E> transform(Graph<V, E> g) {
    Set<Pair<V>> vertex_pairs = getEquivalentPairs(g);

    Set<Set<V>> rv = new HashSet<Set<V>>();
    Map<V, Set<V>> intermediate = new HashMap<V, Set<V>>();
    for (Pair<V> p : vertex_pairs) {
        Set<V> res = intermediate.get(p.getFirst());
        if (res == null)
            res = intermediate.get(p.getSecond());
        if (res == null) // we haven't seen this one before
            res = new HashSet<V>();
        res.add(p.getFirst());//from   w w  w .ja  va2 s . c o  m
        res.add(p.getSecond());
        intermediate.put(p.getFirst(), res);
        intermediate.put(p.getSecond(), res);
    }
    rv.addAll(intermediate.values());

    // pick up the vertices which don't appear in intermediate; they are
    // singletons (equivalence classes of size 1)
    Collection<V> singletons = CollectionUtils.subtract(g.getVertices(), intermediate.keySet());
    for (V v : singletons) {
        Set<V> v_set = Collections.singleton(v);
        intermediate.put(v, v_set);
        rv.add(v_set);
    }

    return new VertexPartition<V, E>(g, intermediate, rv);
}

From source file:com.opengamma.financial.analytics.model.YieldCurveNodeSensitivitiesHelper.java

/**
 * @deprecated Use {@link #getInstrumentLabelledSensitivitiesForCurve(String, YieldCurveBundle, DoubleMatrix1D, InterpolatedYieldCurveSpecificationWithSecurities, ValueSpecification)}
 * instead//  ww  w  . j av a2s. co m
 * @param curve The curve
 * @param sensitivitiesForCurve The sensitivities for the curve
 * @param curveSpec The curve specification
 * @param resultSpec The resultSpecification
 * @return The computed value
 */
@Deprecated
public static Set<ComputedValue> getSensitivitiesForCurve(final YieldAndDiscountCurve curve,
        final DoubleMatrix1D sensitivitiesForCurve,
        final InterpolatedYieldCurveSpecificationWithSecurities curveSpec,
        final ValueSpecification resultSpec) {
    final int n = sensitivitiesForCurve.getNumberOfElements();
    if (!(curve instanceof YieldCurve)) {
        throw new IllegalArgumentException("Can only handle YieldCurve");
    }
    final Double[] keys = ((YieldCurve) curve).getCurve().getXData();
    final double[] values = new double[n];
    final Object[] labels = YieldCurveLabelGenerator.getLabels(curveSpec);
    DoubleLabelledMatrix1D labelledMatrix = new DoubleLabelledMatrix1D(keys, labels, values);
    for (int i = 0; i < n; i++) {
        labelledMatrix = (DoubleLabelledMatrix1D) labelledMatrix.add(keys[i], labels[i],
                sensitivitiesForCurve.getEntry(i));
    }
    return Collections.singleton(new ComputedValue(resultSpec, labelledMatrix));
}

From source file:com.ibm.wala.cast.ipa.callgraph.CAstCallGraphUtil.java

public static AnalysisScope makeScope(SourceModule[] files, SingleClassLoaderFactory loaders, Language language)
        throws IOException {
    CAstAnalysisScope result = new CAstAnalysisScope(files, loaders, Collections.singleton(language));
    return result;
}

From source file:com.flipkart.flux.guice.module.AkkaModuleTest.java

@Test
public void testGetRouterConfigurations_shouldGetConcurrencyValueFromConfigFile() throws Exception {
    when(configuration.getProperty(/*  w  ww.  j a v  a 2s .c  o m*/
            "com.flipkart.flux.integration.SimpleWorkflow_simpleIntegerReturningTask.executionConcurrency"))
                    .thenReturn(5);
    when(deploymentUnit.getTaskConfiguration()).thenReturn(configuration);
    Map<String, DeploymentUnit> deploymentUnitsMap = new HashMap<String, DeploymentUnit>() {
        {
            put("DeploymentUnit1", deploymentUnit);
        }
    };
    int defaultNoOfActors = 10;

    Class simpleWorkflowClass = this.getClass().getClassLoader()
            .loadClass("com.flipkart.flux.integration.SimpleWorkflow");
    Map<String, Method> taskMethods = Collections.singletonMap(
            "com.flipkart.flux.integration.SimpleWorkflow_simpleIntegerReturningTask_com.flipkart.flux.integration.IntegerEvent_version1",
            simpleWorkflowClass.getMethod("simpleIntegerReturningTask"));
    when(deploymentUnit.getTaskMethods()).thenReturn(taskMethods);

    when(deploymentUnitManager.getAllDeploymentUnits()).thenReturn(Collections.singleton(deploymentUnit));

    assertThat(akkaModule.getRouterConfigs(deploymentUnitManager, new TaskRouterUtil(defaultNoOfActors)))
            .containsEntry("com.flipkart.flux.integration.SimpleWorkflow_simpleIntegerReturningTask", 5);
}

From source file:org.jasig.cas.web.view.Cas30ResponseView.java

@Override
protected void prepareMergedOutputModel(final Map<String, Object> model, final HttpServletRequest request,
        final HttpServletResponse response) throws Exception {

    super.prepareMergedOutputModel(model, request, response);

    final Service service = super.getServiceFrom(model);
    final RegisteredService registeredService = this.servicesManager.findServiceBy(service);

    final Map<String, Object> attributes = new HashMap<>(getPrincipalAttributesAsMultiValuedAttributes(model));
    attributes.put(CasProtocolConstants.VALIDATION_CAS_MODEL_ATTRIBUTE_NAME_AUTHENTICATION_DATE,
            Collections.singleton(getAuthenticationDate(model)));
    attributes.put(CasProtocolConstants.VALIDATION_CAS_MODEL_ATTRIBUTE_NAME_FROM_NEW_LOGIN,
            Collections.singleton(isAssertionBackedByNewLogin(model)));
    attributes.put(CasProtocolConstants.VALIDATION_REMEMBER_ME_ATTRIBUTE_NAME,
            Collections.singleton(isRememberMeAuthentication(model)));

    decideIfCredentialPasswordShouldBeReleasedAsAttribute(attributes, model, registeredService);
    decideIfProxyGrantingTicketShouldBeReleasedAsAttribute(attributes, model, registeredService);

    super.putIntoModel(model, CasProtocolConstants.VALIDATION_CAS_MODEL_ATTRIBUTE_NAME_ATTRIBUTES,
            this.casAttributeEncoder.encodeAttributes(attributes, getServiceFrom(model)));
}

From source file:io.pravega.test.integration.MultiReadersEndToEndTest.java

@Test(timeout = 30000)
public void testReadersEqualToSegments() throws Exception {
    runTest(Collections.singleton("teststream1"), 2, 2);
    runTestUsingMock(Collections.singleton("teststream1"), 2, 2);
}

From source file:com.threewks.thundr.gmail.GmailModule.java

@Override
public void configure(UpdatableInjectionContext injectionContext) {
    super.configure(injectionContext);

    // applications using this module must provide a 'host' config property (used to construct the callback URL)
    getRequiredProperty(injectionContext, "host");

    // applications using this module must provide an OAuth client id and secret
    String clientId = getRequiredProperty(injectionContext, "gmailOAuthClientId");
    String clientSecret = getRequiredProperty(injectionContext, "gmailOAuthClientSecret");

    // applications using this module must inject a DataStoreFactory and HttpTransport instance
    DataStoreFactory dataStoreFactory = getRequredDependency(injectionContext, DataStoreFactory.class);
    HttpTransport httpTransport = getRequredDependency(injectionContext, HttpTransport.class);

    JsonFactory jsonFactory = JacksonFactory.getDefaultInstance();
    Collection<String> scopes = Collections.singleton(GmailScopes.GMAIL_COMPOSE);

    try {//  ww  w. j  av  a2 s . c om
        GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(httpTransport, jsonFactory,
                clientId, clientSecret, scopes).setDataStoreFactory(dataStoreFactory).build();
        injectionContext.inject(flow).named("gmailAuthorizationCodeFlow").as(GoogleAuthorizationCodeFlow.class);
    } catch (IOException e) {
        throw new ConfigurationException(e, "Couldn't initialize GoogleAuthorizationCodeFlow");
    }
}