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.opengamma.financial.analytics.LastHistoricalValueFunction.java

@Override
public Set<ValueRequirement> getRequirements(final FunctionCompilationContext context,
        final ComputationTarget target, final ValueRequirement desiredValue) {
    final HistoricalTimeSeriesResolver resolver = OpenGammaCompilationContext
            .getHistoricalTimeSeriesResolver(context);
    final String fieldName = s_marketDataRequirementNamesMap.get(_requirementName);
    final HistoricalTimeSeriesResolutionResult timeSeries = resolver
            .resolve(target.getSecurity().getExternalIdBundle(), null, null, null, fieldName, null);
    if (timeSeries == null) {
        return null;
    }/*from  w w  w. j  av  a 2  s. co m*/
    // TODO - Can we do something more efficient than getting the whole series?
    return Collections.singleton(HistoricalTimeSeriesFunctionUtils.createHTSRequirement(timeSeries, fieldName,
            null, true, DateConstraint.VALUATION_TIME.minus(Period.ofDays(1)), true));
}

From source file:org.cloudfoundry.identity.uaa.oauth.RemoteTokenServicesTests.java

@Test
public void testTokenRetrievalWithUserAuthorities() throws Exception {
    body.put("user_authorities", Collections.singleton("uaa.user"));
    OAuth2Authentication result = services.loadAuthentication("FOO");
    assertNotNull(result);//from  w ww .jav  a2s.  com
    assertEquals("[uaa.user]", result.getUserAuthentication().getAuthorities().toString());
}

From source file:com.spotify.reaper.unit.service.SegmentRunnerTest.java

@Test
public void timeoutTest() throws InterruptedException, ReaperException, ExecutionException {
    final AppContext context = new AppContext();
    context.storage = new MemoryStorage();
    RepairUnit cf = context.storage/* w ww . ja va 2 s .c om*/
            .addRepairUnit(new RepairUnit.Builder("reaper", "reaper", Sets.newHashSet("reaper")));
    RepairRun run = context.storage.addRepairRun(
            new RepairRun.Builder("reaper", cf.getId(), DateTime.now(), 0.5, 1, RepairParallelism.PARALLEL));
    context.storage.addRepairSegments(Collections.singleton(
            new RepairSegment.Builder(run.getId(), new RingRange(BigInteger.ONE, BigInteger.ZERO), cf.getId())),
            run.getId());
    final long segmentId = context.storage.getNextFreeSegment(run.getId()).get().getId();

    final ExecutorService executor = Executors.newSingleThreadExecutor();
    final MutableObject<Future<?>> future = new MutableObject<>();

    context.jmxConnectionFactory = new JmxConnectionFactory() {
        @Override
        public JmxProxy connect(final Optional<RepairStatusHandler> handler, String host) {
            JmxProxy jmx = mock(JmxProxy.class);
            when(jmx.getClusterName()).thenReturn("reaper");
            when(jmx.isConnectionAlive()).thenReturn(true);
            when(jmx.tokenRangeToEndpoint(anyString(), any(RingRange.class)))
                    .thenReturn(Lists.newArrayList(""));
            when(jmx.triggerRepair(any(BigInteger.class), any(BigInteger.class), anyString(),
                    Matchers.<RepairParallelism>any(), Sets.newHashSet(anyString())))
                            .then(new Answer<Integer>() {
                                @Override
                                public Integer answer(InvocationOnMock invocation) {
                                    assertEquals(RepairSegment.State.NOT_STARTED,
                                            context.storage.getRepairSegment(segmentId).get().getState());
                                    future.setValue(executor.submit(new Thread() {
                                        @Override
                                        public void run() {
                                            handler.get().handle(1, ActiveRepairService.Status.STARTED,
                                                    "Repair command 1 has started");
                                            assertEquals(RepairSegment.State.RUNNING, context.storage
                                                    .getRepairSegment(segmentId).get().getState());
                                        }
                                    }));
                                    return 1;
                                }
                            });

            return jmx;
        }
    };
    RepairRunner rr = mock(RepairRunner.class);
    RepairUnit ru = mock(RepairUnit.class);
    SegmentRunner sr = new SegmentRunner(context, segmentId, Collections.singleton(""), 100, 0.5,
            RepairParallelism.PARALLEL, "reaper", ru, rr);
    sr.run();

    future.getValue().get();
    executor.shutdown();

    assertEquals(RepairSegment.State.NOT_STARTED, context.storage.getRepairSegment(segmentId).get().getState());
    assertEquals(1, context.storage.getRepairSegment(segmentId).get().getFailCount());
}

From source file:com.hp.autonomy.searchcomponents.hod.search.fields.HodSearchResultDeserializer.java

@Override
public HodSearchResult deserialize(final JsonParser jsonParser,
        final DeserializationContext deserializationContext) throws IOException {
    final FieldsInfo fieldsInfo = configService.getConfig().getFieldsInfo();
    final Map<String, FieldInfo<?>> fieldConfig = fieldsInfo.getFieldConfigByName();

    final JsonNode node = jsonParser.getCodec().readTree(jsonParser);

    final Map<String, FieldInfo<?>> fieldMap = new HashMap<>(fieldConfig.size());
    for (final FieldInfo<?> fieldInfo : fieldConfig.values()) {
        for (final String name : fieldInfo.getNames()) {
            final String[] stringValues = parseAsStringArray(node, name);

            if (ArrayUtils.isNotEmpty(stringValues)) {
                final List<Object> values = new ArrayList<>(stringValues.length);
                for (final String stringValue : stringValues) {
                    final Object value = fieldInfo.getType().parseValue(fieldInfo.getType().getType(),
                            stringValue);
                    values.add(value);/*from   w  w  w.  ja v a  2s .  c  om*/
                }

                fieldMap.put(fieldInfo.getId(), new FieldInfo<>(fieldInfo.getId(), Collections.singleton(name),
                        fieldInfo.getType(), values));
            }
        }
    }

    return new HodSearchResult.Builder().setReference(parseAsString(node, "reference"))
            .setIndex(parseAsString(node, "index")).setTitle(parseAsString(node, "title"))
            .setSummary(parseAsString(node, "summary")).setWeight(parseAsDouble(node, "weight"))
            .setFieldMap(fieldMap).setDate(parseAsDateFromArray(node, "date"))
            .setPromotionCategory(parsePromotionCategory(node, "promotion")).build();
}

From source file:be.ordina.msdashboard.graph.RedisServiceTest.java

@Test
public void deleteAllNodes() {
    Set<String> keys = Collections.singleton("nodeId");

    doReturn(keys).when(redisTemplate).keys("*");

    redisService.deleteAllNodes();//from w ww  .  j  a  va 2  s . co  m

    verify(redisTemplate).keys("*");
    verify(redisTemplate).delete(keys);
}

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

public void unregister(String name) {
    DefinitionProvider<AppDescriptor> toRemove = getProvider(name);
    getRegistryMap().remove(toRemove.getMetadata());
    sendEvent(AppRegistryEventType.UNREGISTERED, Collections.singleton(toRemove.getMetadata()));
}

From source file:com.photobox.gradle.androidpublisher.AndroidPublisherHelper.java

private static Credential authorizeWithServiceAccount(String serviceAccountEmail, File serviceAccountKeyFile)
        throws GeneralSecurityException, IOException {
    log.info(String.format("Authorizing using Service Account: %s", serviceAccountEmail));

    // Build service account credential.
    log.info("Using service key file: " + serviceAccountKeyFile.getAbsolutePath());
    GoogleCredential credential = new GoogleCredential.Builder().setTransport(HTTP_TRANSPORT)
            .setJsonFactory(JSON_FACTORY).setServiceAccountId(serviceAccountEmail)
            .setServiceAccountScopes(Collections.singleton(AndroidPublisherScopes.ANDROIDPUBLISHER))
            .setServiceAccountPrivateKeyFromP12File(serviceAccountKeyFile).build();
    return credential;
}

From source file:edu.cornell.mannlib.vitro.webapp.modelaccess.adapters.NamedDefaultModelMaker.java

@Override
public ExtendedIterator<String> listModels() {
    return super.listModels().andThen(Collections.singleton(this.defaultModelUri).iterator());
}

From source file:com.espertech.esper.epl.join.table.PropertyIndexedEventTableUnique.java

/**
 * Returns the set of events that have the same property value as the given event.
 * @param keys to compare against/*from   ww w .  j  a  va 2 s  .  com*/
 * @return set of events with property value, or null if none found (never returns zero-sized set)
 */
@Override
public Set<EventBean> lookup(Object[] keys) {
    MultiKeyUntyped key = new MultiKeyUntyped(keys);
    EventBean event = propertyIndex.get(key);
    if (event != null) {
        return Collections.singleton(event);
    }
    return null;
}

From source file:net.solarnetwork.node.job.DatumDataSourceManagedLoggerJob.java

private void executeForDatumDataSource(JobExecutionContext jobContext) {
    if (log.isDebugEnabled()) {
        log.debug("Collecting [{}] from [{}]", datumDataSource.getDatumType().getSimpleName(), datumDataSource);
    }//from ww  w . java 2  s. c  om
    T datum = datumDataSource.readCurrentDatum();
    if (datum != null) {
        persistDatum(Collections.singleton(datum));
    } else {
        log.info("No data returned from [{}]", datumDataSource);
    }
}