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:com.google.gerrit.server.account.GeneratePassword.java

public AccountExternalId call() throws OrmException, NoSuchEntityException {
    AccountExternalId id = db.accountExternalIds().get(forUser);
    if (id == null || !user.getAccountId().equals(id.getAccountId())) {
        throw new NoSuchEntityException();
    }/*from w  w  w .  ja va 2s. co m*/

    id.setPassword(generate());
    db.accountExternalIds().update(Collections.singleton(id));
    accountCache.evict(user.getAccountId());
    return id;
}

From source file:com.hp.autonomy.frontend.find.hod.fields.HodFieldsControllerTest.java

@Override
protected HodFieldsRequest createRequest() {
    return new HodFieldsRequest.Builder().setDatabases(Collections.singleton(ResourceIdentifier.WIKI_ENG))
            .build();/*  w w  w.j a v a2s  .co m*/
}

From source file:com.opengamma.financial.analytics.model.bond.BondPV01CountryCurveFunction.java

@Override
public Set<ValueSpecification> getResults(final FunctionCompilationContext context,
        final ComputationTarget target, final Map<ValueSpecification, ValueRequirement> inputs) {
    String curveName = null;//from   w w  w  .  j a  v a 2 s  .  c o m
    for (ValueSpecification input : inputs.keySet()) {
        if (ValueRequirementNames.YIELD_CURVE.equals(input.getValueName())) {
            curveName = input.getProperty(ValuePropertyNames.CURVE);
            break;
        }
    }
    Validate.notNull(curveName, "curveName");
    return Collections.singleton(new ValueSpecification(ValueRequirementNames.PV01, target.toSpecification(),
            createValueProperties().with(ValuePropertyNames.COUNTRY, BondFunctionUtils.getCountryName(target))
                    .with(ValuePropertyNames.CURVE, curveName).get()));
}

From source file:com.opengamma.financial.analytics.model.bond.BondPV01CurrencyCurveFunction.java

@Override
public Set<ValueSpecification> getResults(final FunctionCompilationContext context,
        final ComputationTarget target, final Map<ValueSpecification, ValueRequirement> inputs) {
    String curveName = null;/*from  w  w w  . j  a va  2  s  . c om*/
    for (ValueSpecification input : inputs.keySet()) {
        if (ValueRequirementNames.YIELD_CURVE.equals(input.getValueName())) {
            curveName = input.getProperty(ValuePropertyNames.CURVE);
            break;
        }
    }
    Validate.notNull(curveName, "curveName");
    return Collections.singleton(new ValueSpecification(ValueRequirementNames.PV01, target.toSpecification(),
            createValueProperties().with(ValuePropertyNames.CURRENCY, BondFunctionUtils.getCurrencyName(target))
                    .with(ValuePropertyNames.CURVE, curveName).get()));
}

From source file:de.codecentric.boot.admin.discovery.ApplicationDiscoveryListenerTest.java

@Test
public void test_ignore() {
    when(discovery.getServices()).thenReturn(Collections.singletonList("service"));
    when(discovery.getInstances("service")).thenReturn(Collections
            .singletonList((ServiceInstance) new DefaultServiceInstance("service", "localhost", 80, false)));

    listener.setIgnoredServices(Collections.singleton("service"));
    listener.onInstanceRegistered(new InstanceRegisteredEvent<>(new Object(), null));

    assertEquals(0, registry.getApplications().size());
}

From source file:com.datapine.service.impl.ItemServiceImplTest.java

/**
 * Before tests./*from   w  w w .  j a  v a 2  s  .  c  om*/
 */
@Before
public final void before() {
    SecurityContextHolder.getContext().setAuthentication(new AnonymousAuthenticationToken("key", "test user",
            Collections.singleton(new SimpleGrantedAuthority("ROLE_USER"))));
}

From source file:org.excalibur.service.deployment.server.context.handler.CreateNodeManagerHandler.java

@Override
public void handlerApplicationInitializedEvent(Configuration configuration, ApplicationContext context,
        ServletContextEvent sce) {//w  w  w.j  a va 2 s .c o m

    VirtualMachine thisNode = context.getBean(InstanceService.class)
            .getInstanceByName(configuration.getHostName());
    ComputeService service = builder().credentials(configuration.getCredentials())
            .provider(configuration.getCredentials().getProvider()).build();

    if (thisNode == null) {
        thisNode = service.getInstanceWithName(configuration.getHostName(), configuration.getZone().getName());
    }

    checkNotNull(thisNode, "Node %s not found on region/zone %s/%s of provider %s", configuration.getHostName(),
            configuration.getZone().getRegion(), configuration.getZone().getName());

    context.getBean(InstanceService.class).insertOrUpdateInstances(Collections.singleton(thisNode));
    NodeManager manager = new NodeManager(configuration, thisNode, service);

    this.configure(manager, context);
    NodeManagerFactory.setManager(manager);
}

From source file:edu.cornell.mannlib.vitro.webapp.auth.identifier.common.CommonIdentifierBundleFactory.java

/**
 * If the user is logged in, create an identifier that shows his URI.
 *//*from  ww  w  . j a  v  a 2  s  .  com*/
private Collection<? extends Identifier> createUserIdentifiers(HttpServletRequest req) {
    LoginStatusBean bean = LoginStatusBean.getBean(req);
    if (bean.isLoggedIn()) {
        return Collections.singleton(new IsUser(bean.getUserURI()));
    } else {
        return Collections.emptySet();
    }
}

From source file:dmh.kuebiko.view.ImageManagerTest.java

/**
 * Retrieve a list of all known image ID strings of a particular size.
 * @param size The size of the requested images.
 * @return A list of valid image IDs.// w ww .j  av a2  s  .c o  m
 */
private Collection<String> getImageIds(ImageSize size) throws URISyntaxException {
    String path = String.format("images/%s/", size.toString().toLowerCase());
    File imageDir = new File(getClass().getResource(path).toURI());

    Collection<String> imageIds = Lists.newArrayList(
            Collections2.transform(Arrays.asList(imageDir.list()), new Function<String, String>() {
                @Override
                public String apply(String input) {
                    return "png".equals(FilenameUtils.getExtension(input))
                            ? FilenameUtils.removeExtension(input)
                            : "";
                }
            }));
    imageIds.removeAll(Collections.singleton(""));

    return imageIds;
}

From source file:io.kodokojo.service.aws.Route53DnsManager.java

@Override
public boolean createOrUpdateDnsEntry(DnsEntry dnsEntry) {
    if (dnsEntry == null) {
        throw new IllegalArgumentException("dnsEntry must be defined.");
    }//from w ww  .  j ava  2  s  .com
    createOrUpdateDnsEntries(Collections.singleton(dnsEntry));
    return true;
}