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:org.cloudfoundry.identity.uaa.scim.ScimUserTests.java

@Test
public void userWithGroupsMapsToJson() throws Exception {
    ScimUser user = new ScimUser();
    user.setId("123");
    user.setUserName("joe");
    user.setGroups(Collections.singleton(new Group(null, "foo")));

    String json = mapper.writeValueAsString(user);
    // System.err.println(json);
    assertTrue(json.contains("\"groups\":"));
}

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

@Override
public Set<ValueSpecification> getResults(final FunctionCompilationContext context,
        final ComputationTarget target, final Map<ValueSpecification, ValueRequirement> inputs) {
    final ValueSpecification specification = new ValueSpecification(_requirementName, target.toSpecification(),
            getResultProperties(inputs.keySet().iterator().next()));
    return Collections.singleton(specification);
}

From source file:com.stratio.cassandra.lucene.search.sort.GeoDistanceSortField.java

/** {@inheritDoc} */
public Set<String> postProcessingFields() {
    return Collections.singleton(field);
}

From source file:com.nesscomputing.cache.PrefixedCache.java

public boolean add(final P prefix, final K key, final V value) {
    final String keyString = keySerializer.apply(SerializablePair.of(prefix, key));
    final byte[] valueBytes = valueSerializer.apply(value);
    return BooleanUtils
            .toBoolean(/*  w ww . j  a v a 2s  .c o  m*/
                    nessCache
                            .add(namespace,
                                    Collections.singleton(
                                            CacheStores.fromSharedBytes(keyString, valueBytes, getExpiry())))
                            .get(key));
}

From source file:com.xtructure.xevolution.genetics.impl.UTestAbstractPopulation.java

public void addAllBehavesAsExpected() {
    DummyPopulation pop = new DummyPopulation(1);
    Genome<String> genome = new DummyGenome(1, "data");
    assertThat("", //
            pop.get(genome.getId()), isNull());
    pop.addAll(Collections.singleton(genome));
    assertThat("", //
            pop.get(genome.getId()), isSameAs(genome));
}

From source file:edu.harvard.iq.dataverse.DatasetField.java

/**
 * Groups a list of fields by the block they belong to.
 *
 * @param fields well, duh.//from  w w  w . j  av  a  2s  .c  o  m
 * @return a map, mapping each block to the fields that belong to it.
 */
public static Map<MetadataBlock, List<DatasetField>> groupByBlock(List<DatasetField> fields) {
    Map<MetadataBlock, List<DatasetField>> retVal = new HashMap<>();
    for (DatasetField f : fields) {
        MetadataBlock metadataBlock = f.getDatasetFieldType().getMetadataBlock();
        List<DatasetField> lst = retVal.get(metadataBlock);
        if (lst == null) {
            retVal.put(metadataBlock, new LinkedList<>(Collections.singleton(f)));
        } else {
            lst.add(f);
        }
    }
    return retVal;
}

From source file:org.faster.opm.filter.AbstractResourceFilter.java

protected Set<String> getResourceFilterValues() {
    return isMultiResourceFilterValues()
            ? Strings.toStringSet(resourceFilterValue, resourceFilterValueDelimiter)
            : Collections.singleton(resourceFilterValue);
}

From source file:com.google.play.developerapi.samples.AndroidPublisherHelper.java

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

    // Build service account credential.
    GoogleCredential credential = new GoogleCredential.Builder().setTransport(HTTP_TRANSPORT)
            .setJsonFactory(JSON_FACTORY).setServiceAccountId(serviceAccountEmail)
            .setServiceAccountScopes(Collections.singleton(AndroidPublisherScopes.ANDROIDPUBLISHER))
            .setServiceAccountPrivateKeyFromP12File(new File(SRC_RESOURCES_KEY_P12)).build();
    return credential;
}

From source file:org.zenoss.zep.impl.PluginServiceImplTest.java

@Test
public void testCycleDetection() throws MissingDependencyException {
    EventPreCreatePlugin plugin1 = new EventPreCreatePlugin() {
        @Override/*from  w w w  .  j  a  v a  2 s. c  o m*/
        public String getId() {
            return "Plugin1";
        }

        @Override
        public Set<String> getDependencies() {
            return Collections.singleton("Plugin2");
        }

        @Override
        public Event processEvent(Event event, EventPreCreateContext ctx) throws ZepException {
            return event;
        }
    };
    EventPreCreatePlugin plugin2 = new EventPreCreatePlugin() {
        @Override
        public String getId() {
            return "Plugin2";
        }

        @Override
        public Set<String> getDependencies() {
            return Collections.singleton("Plugin3");
        }

        @Override
        public Event processEvent(Event event, EventPreCreateContext ctx) throws ZepException {
            return event;
        }
    };
    EventPreCreatePlugin plugin3 = new EventPreCreatePlugin() {
        @Override
        public String getId() {
            return "Plugin3";
        }

        @Override
        public Set<String> getDependencies() {
            return Collections.singleton("Plugin1");
        }

        @Override
        public Event processEvent(Event event, EventPreCreateContext ctx) throws ZepException {
            return event;
        }
    };
    Map<String, EventPreCreatePlugin> plugins = new HashMap<String, EventPreCreatePlugin>();
    plugins.put(plugin1.getId(), plugin1);
    plugins.put(plugin2.getId(), plugin2);
    plugins.put(plugin3.getId(), plugin3);
    try {
        PluginServiceImpl.detectCycles(plugins, Collections.<String>emptySet());
        fail("Expected to fail with a cycle exception");
    } catch (DependencyCycleException e) {
        /* Expected */
    }
}

From source file:hudson.matrix.MatrixTest.java

/**
 * Test that project level permissions apply to child configurations as well.
 *//* www  . j a  va  2  s. c  o m*/
@Issue("JENKINS-9293")
@Test
public void configurationACL() throws Exception {
    j.jenkins.setAuthorizationStrategy(new ProjectMatrixAuthorizationStrategy());
    MatrixProject mp = j.createProject(MatrixProject.class);
    mp.setAxes(new AxisList(new Axis("foo", "a", "b")));
    MatrixConfiguration mc = mp.getItem("foo=a");
    assertNotNull(mc);
    SecurityContextHolder.clearContext();
    assertFalse(mc.getACL().hasPermission(Item.READ));
    mp.addProperty(new AuthorizationMatrixProperty(
            Collections.singletonMap(Item.READ, Collections.singleton("anonymous"))));
    // Project-level permission should apply to single configuration too:
    assertTrue(mc.getACL().hasPermission(Item.READ));
}