Example usage for java.util Collections singleton

List of usage examples for java.util Collections singleton

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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.phoenixst.plexus.util.SingletonGraph.java

public Collection nodes(Predicate nodePredicate) {
    return (nodePredicate == null || nodePredicate.evaluate(singleNode)) ? Collections.singleton(singleNode)
            : Collections.EMPTY_SET;
}

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

/**
 * {@inheritDoc}//from   w  w  w .jav  a  2 s  . com
 * <p>
 * Validates each of {@code attribute}'s values against the set of acceptable values by calling
 * {@link String#valueOf(Object)} on each value and checking whether that string is in the set.
 * <p>
 * Note: comparisons are <strong>case-sensitive</strong>.
 */
@Override
public Optional<AttributeValidationReport> validate(final Attribute attribute) {
    Preconditions.checkArgument(attribute != null, "The attribute cannot be null.");

    final String name = attribute.getName();
    for (final Serializable value : attribute.getValues()) {
        final String stringValue = String.valueOf(value);
        if (!values.contains(stringValue)) {
            final AttributeValidationReportImpl report = new AttributeValidationReportImpl();
            // TODO (jrnorth) - escape the value.
            report.addViolation(new ValidationViolationImpl(Collections.singleton(name),
                    name + " has an invalid value: [" + stringValue + "]", Severity.ERROR));
            values.forEach(report::addSuggestedValue);
            return Optional.of(report);
        }
    }

    return Optional.empty();
}

From source file:com.mirth.connect.server.controllers.AuthorizationController.java

public void auditAuthorizationRequest(Integer userId, Operation operation, Map<String, Object> parameterMap,
        ServerEvent.Outcome outcome, String address) {
    if (operation != null && operation.isAuditable()) {
        String displayName = operation.getDisplayName();
        if (operation instanceof ExtensionOperation) {
            displayName += " invoked through " + ((ExtensionOperation) operation).getExtensionName();
        }/*from w w w.  j av  a 2 s  .  c o  m*/
        ServerEvent serverEvent = new ServerEvent(serverId, displayName);
        serverEvent.setLevel(Level.INFORMATION);
        serverEvent.setUserId(userId);
        serverEvent.setOutcome(outcome);
        serverEvent.setIpAddress(address);

        if (MapUtils.isNotEmpty(parameterMap)) {
            for (Entry<String, Object> entry : parameterMap.entrySet()) {
                String key = entry.getKey();
                Object value = entry.getValue();

                // If channelId was one of the params, print out each channel as separate attributes and add the channel name
                if (key.contains("channelId")) {
                    Set<String> collection = null;

                    if (value instanceof Set) {
                        collection = (Set<String>) value;
                    } else if (value instanceof String) {
                        collection = Collections.singleton((String) value);
                    }

                    if (collection != null) {
                        String[] channelIds = collection.toArray(new String[collection.size()]);
                        for (int i = 0; i < channelIds.length; i++) {
                            String name = "channel";
                            if (channelIds.length > 1) {
                                name += "[" + i + "]";
                            }
                            value = channelController.getChannelById(channelIds[i]);
                            addAttribute(serverEvent.getAttributes(), name, value);
                        }
                    }
                } else {
                    addAttribute(serverEvent.getAttributes(), key, value);
                }
            }
        }
        eventController.dispatchEvent(serverEvent);
    }
}

From source file:com.devicehive.handler.command.CommandSearchHandlerTest.java

@Test
public void shouldHandleCommandInsertAndQueryByCommandNameAndDeviceGuid() throws Exception {
    DeviceCommand command = generateCommand();

    CommandInsertRequest cir = new CommandInsertRequest(command);
    Response response = handlerInsert.handle(Request.newBuilder().withBody(cir).build());
    assertNotNull(response);//from  w ww.  j av a  2s. c o  m
    assertNotNull(response.getBody());
    assertTrue(response.getBody() instanceof CommandInsertResponse);
    CommandInsertResponse body = (CommandInsertResponse) response.getBody();
    assertEquals(command, body.getDeviceCommand());

    CommandSearchRequest csr = new CommandSearchRequest();
    csr.setGuid(command.getDeviceGuid());
    csr.setNames(Collections.singleton(command.getCommand()));

    response = handlerSearch.handle(Request.newBuilder().withBody(csr).build());
    assertNotNull(response);
    assertNotNull(response.getBody());
    assertTrue(response.getBody() instanceof CommandSearchResponse);
    CommandSearchResponse responseBody = (CommandSearchResponse) response.getBody();
    assertEquals(1, responseBody.getCommands().size());
    assertEquals(command, responseBody.getCommands().get(0));
}

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

@Override
public Set<ValueSpecification> getResults(final FunctionCompilationContext context,
        final ComputationTarget target) {
    final ValueSpecification specification = new ValueSpecification(_requirementName, target.toSpecification(),
            ValueProperties.all());/*from  w ww .ja  v a  2s  .  c o  m*/
    return Collections.singleton(specification);
}

From source file:com.haulmont.cuba.web.gui.components.WebAbstractOptionsField.java

@Override
public void setDatasource(Datasource datasource, String property) {
    this.datasource = datasource;

    MetaClass metaClass = datasource.getMetaClass();
    resolveMetaPropertyPath(metaClass, property);

    if (metaProperty.getRange().getCardinality() != null) {
        setMultiSelect(metaProperty.getRange().getCardinality().isMany());
    }/*  w  w  w  . jav a2  s  . c om*/

    ItemWrapper wrapper = createDatasourceWrapper(datasource, Collections.singleton(metaPropertyPath));
    Property itemProperty = wrapper.getItemProperty(metaPropertyPath);

    setRequired(metaProperty.isMandatory());
    if (StringUtils.isEmpty(getRequiredMessage())) {
        MessageTools messageTools = AppBeans.get(MessageTools.NAME);
        setRequiredMessage(messageTools.getDefaultRequiredMessage(metaClass, property));
    }

    if (metaProperty.getRange().isEnum()) {
        Enumeration enumeration = metaProperty.getRange().asEnumeration();
        List options = Arrays.asList(enumeration.getJavaClass().getEnumConstants());
        setComponentContainerDs(createEnumContainer(options));

        setCaptionMode(CaptionMode.ITEM);
    }

    if (DynamicAttributesUtils.isDynamicAttribute(metaProperty)) {
        CategoryAttribute categoryAttribute = DynamicAttributesUtils.getCategoryAttribute(metaProperty);
        if (categoryAttribute != null && categoryAttribute.getDataType() == PropertyType.ENUMERATION) {
            setOptionsList(categoryAttribute.getEnumerationOptions());
        }
    }

    component.setPropertyDataSource(itemProperty);

    if (metaProperty.isReadOnly()) {
        setEditable(false);
    }

    handleFilteredAttributes(this, this.datasource, metaPropertyPath);
    securitytemChangeListener = e -> handleFilteredAttributes(this, this.datasource, metaPropertyPath);
    //noinspection unchecked
    this.datasource.addItemChangeListener(new WeakItemChangeListener(datasource, securitytemChangeListener));
}

From source file:com.opengamma.engine.function.MarketDataSourcingFunction.java

@Override
public Set<ValueSpecification> getResults(FunctionCompilationContext context, ComputationTarget target) {
    return Collections.singleton(getResult());
}

From source file:io.undertow.servlet.test.security.form.ServletFormAuthURLRewriteTestCase.java

@BeforeClass
public static void setup() throws ServletException {

    final PathHandler path = new PathHandler();

    final ServletContainer container = ServletContainer.Factory.newInstance();

    ServletInfo s = new ServletInfo("servlet", SendUsernameServlet.class)
            .setServletSecurityInfo(new ServletSecurityInfo().addRoleAllowed("role1")).addMapping("/secured/*");

    ServletInfo echo = new ServletInfo("echo", EchoServlet.class)
            .setServletSecurityInfo(new ServletSecurityInfo().addRoleAllowed("role1"))
            .addMapping("/secured/echo");

    ServletInfo echoParam = new ServletInfo("echoParam", RequestParamEchoServlet.class)
            .setServletSecurityInfo(new ServletSecurityInfo().addRoleAllowed("role1"))
            .addMapping("/secured/echoParam");

    ServletInfo s1 = new ServletInfo("loginPage", FormLoginServlet.class)
            .setServletSecurityInfo(new ServletSecurityInfo().addRoleAllowed("group1"))
            .addMapping("/FormLoginServlet");

    ServletIdentityManager identityManager = new ServletIdentityManager();
    identityManager.addUser("user1", "password1", "role1");

    DeploymentInfo builder = new DeploymentInfo()
            .setServletSessionConfig(new ServletSessionConfig()
                    .setSessionTrackingModes(Collections.singleton(SessionTrackingMode.URL)))
            .setClassLoader(SimpleServletTestCase.class.getClassLoader()).setContextPath("/servletContext")
            .setClassIntrospecter(TestClassIntrospector.INSTANCE).setDeploymentName("servletContext.war")
            .setAuthenticationMode(AuthenticationMode.CONSTRAINT_DRIVEN).setIdentityManager(identityManager)
            .setLoginConfig(new LoginConfig("FORM", "Test Realm", "/FormLoginServlet", "/error.html"))
            .addServlets(s, s1, echo, echoParam);

    DeploymentManager manager = container.addDeployment(builder);
    manager.deploy();//from   w ww  .jav a  2  s  . c  o m
    path.addPrefixPath(builder.getContextPath(), manager.start());

    DefaultServer.setRootHandler(path);
}

From source file:com.devicehive.resource.DeviceNotificationResourceTest.java

@Test
public void should_get_response_with_status_200_and_notification_when_waitTimeout_is_0_and_polling_for_device() {
    DeviceClassEquipmentVO equipment = DeviceFixture.createEquipmentVO();
    DeviceClassUpdate deviceClass = DeviceFixture.createDeviceClass();
    deviceClass.setEquipment(Optional.of(Collections.singleton(equipment)));
    NetworkVO network = DeviceFixture.createNetwork();
    String guid = UUID.randomUUID().toString();
    DeviceUpdate deviceUpdate = DeviceFixture.createDevice(guid);
    deviceUpdate.setDeviceClass(Optional.of(deviceClass));
    deviceUpdate.setNetwork(Optional.of(network));
    DateTime timeStamp = new DateTime(DateTimeZone.UTC);

    // register device
    Response response = performRequest("/device/" + guid, "PUT", emptyMap(),
            singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), deviceUpdate, NO_CONTENT,
            null);//from w  w  w .  ja v a  2s.  co  m
    assertNotNull(response);

    // Create notification
    DeviceNotification notification = DeviceFixture.createDeviceNotification();
    notification = performRequest("/device/" + guid + "/notification", "POST", emptyMap(),
            singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), notification, CREATED,
            DeviceNotification.class);
    assertNotNull(notification.getId());

    // poll notification
    Map<String, Object> params = new HashMap<>();
    params.put("waitTimeout", 0);
    params.put("timestamp", timeStamp);
    ArrayList notifications = new ArrayList();
    notifications = performRequest("/device/" + guid + "/notification/poll", "GET", params,
            singletonMap(HttpHeaders.AUTHORIZATION, tokenAuthHeader(ACCESS_KEY)), null, OK,
            notifications.getClass());
    assertNotNull(notifications);
    assertEquals(1, notifications.size());
}

From source file:gobblin.converter.avro.AvroToJsonStringConverterBase.java

@Override
public Iterable<T> convertRecord(String outputSchema, GenericRecord inputRecord, WorkUnitState workUnit)
        throws DataConversionException {
    try {/*from  w  ww  . j  a v  a  2  s .c o m*/
        byte[] utf8Bytes = this.serializer.get().serialize(inputRecord);
        return Collections.singleton(processUtf8Bytes(utf8Bytes));
    } catch (IOException ioe) {
        throw new DataConversionException(ioe);
    }
}