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.googlecode.spring.appengine.objectify.converter.OfyEntityClassConverter.java

@Override
public Set<ConvertiblePair> getConvertibleTypes() {
    return Collections.singleton(new ConvertiblePair(Object.class, Object.class));
}

From source file:io.lavagna.service.UserService.java

@Transactional(readOnly = false)
public void createUser(UserToCreate userToCreate) {
    requireNonNull(userToCreate);//  ww w . ja v a 2s . c  o m
    requireNonNull(userToCreate.getProvider());
    requireNonNull(userToCreate.getUsername());

    if (trimToNull(userToCreate.getPassword()) != null) {
        userToCreate.setPassword(hashPassword(userToCreate.getPassword()));
    }

    userRepository.createUser(userToCreate.getProvider(), userToCreate.getUsername(),
            userToCreate.getPassword(), userToCreate.getEmail(), userToCreate.getDisplayName(),
            userToCreate.getEnabled());

    if (userToCreate.getRoles() == null) {
        return;
    }

    User u = userRepository.findUserByName(userToCreate.getProvider(), userToCreate.getUsername());
    Set<Integer> userId = Collections.singleton(u.getId());
    for (String r : userToCreate.getRoles()) {
        permissionService.assignRoleToUsers(new Role(r), userId);
    }
}

From source file:com.cloudbees.jenkins.support.impl.NetworkInterfaces.java

@NonNull
@Override
public Set<Permission> getRequiredPermissions() {
    return Collections.singleton(Jenkins.ADMINISTER);
}

From source file:ch.cyberduck.core.irods.IRODSReadFeatureTest.java

@Test
public void testRead() throws Exception {
    final ProtocolFactory factory = new ProtocolFactory(
            new HashSet<>(Collections.singleton(new IRODSProtocol())));
    final Profile profile = new ProfilePlistReader(factory)
            .read(new Local("../profiles/iRODS (iPlant Collaborative).cyberduckprofile"));
    final Host host = new Host(profile, profile.getDefaultHostname(),
            new Credentials(System.getProperties().getProperty("irods.key"),
                    System.getProperties().getProperty("irods.secret")));

    final IRODSSession session = new IRODSSession(host);
    session.open(new DisabledHostKeyCallback());
    session.login(new DisabledPasswordStore(), new DisabledLoginCallback(), new DisabledCancelCallback());

    final Path test = new Path(new IRODSHomeFinderService(session).find(), UUID.randomUUID().toString(),
            EnumSet.of(Path.Type.file));
    assertFalse(session.getFeature(Find.class).find(test));

    final byte[] content = RandomUtils.nextBytes(2048);
    final TransferStatus status = new TransferStatus();
    status.setLength(content.length);//from   w w  w.ja va2  s .  c o m
    status.setAppend(false);
    final OutputStream out = new IRODSWriteFeature(session).write(test, status,
            new DisabledConnectionCallback());
    assertNotNull(out);

    new StreamCopier(status, status).transfer(new ByteArrayInputStream(content), out);
    out.close();
    assertTrue(session.getFeature(Find.class).find(test));

    final InputStream in = new IRODSReadFeature(session).read(test, status, new DisabledConnectionCallback());
    assertNotNull(in);
    in.close();

    session.getFeature(Delete.class).delete(Arrays.asList(test), new DisabledLoginCallback(),
            new Delete.DisabledCallback());
    assertFalse(session.getFeature(Find.class).find(test));
    session.close();
}

From source file:com.xtructure.xsim.impl.TestAbstractStandardXComponent.java

@Test
public void testRetrieveForeignData() {
    final AbstractStandardXComponent component = new MockComponent(COMPONENT_ID,
            Collections.singleton(SOURCE_ID), Collections.singleton(TARGET_ID));

    final XBorder border = new MockBorder((MockComponent) component);

    component.addBorder(border);//  ww  w.  j a v  a2  s  .  co m

    component.retrieveForeignData();
}

From source file:com.mirth.connect.server.api.servlets.CodeTemplateServlet.java

@Override
public CodeTemplateLibrary getCodeTemplateLibrary(String libraryId, boolean includeCodeTemplates) {
    try {//  w  ww  . j ava 2  s . c  o m
        List<CodeTemplateLibrary> libraries = codeTemplateController
                .getLibraries(Collections.singleton(libraryId), includeCodeTemplates);
        if (CollectionUtils.isEmpty(libraries)) {
            throw new MirthApiException(Status.NOT_FOUND);
        }
        return libraries.iterator().next();
    } catch (ControllerException e) {
        throw new MirthApiException(e);
    }
}

From source file:com.redhat.red.offliner.ftest.FoloRecordAvoidedDownloadFTest.java

/**
 * In general, we should only have one test method per functional test. This allows for the best parallelism when we
 * execute the tests, especially if the setup takes some time.
 *
 * @throws Exception In case anything (anything at all) goes wrong!
 *///from   w  ww  .  j  a v a  2  s. co m
@Test
public void run() throws Exception {
    // We only need one repo server.
    TestRepositoryServer server = newRepositoryServer();

    // Generate some test content
    byte[] content = contentGenerator.newBinaryContent(1024);

    TrackedContentEntryDTO dto = contentGenerator.newRemoteContentEntry(new StoreKey(StoreType.remote, "test"),
            "jar", server.getBaseUri(), content);

    TrackedContentDTO record = new TrackedContentDTO(new TrackingKey("test-record"), Collections.emptySet(),
            Collections.singleton(dto));

    String path = dto.getPath();

    // Register the generated content by writing it to the path within the repo server's dir structure.
    // This way when the path is requested it can be downloaded instead of returning a 404.
    server.registerContent(path, content);
    server.registerContent(path + Main.SHA_SUFFIX, sha1Hex(content));
    server.registerContent(path + Main.MD5_SUFFIX, md5Hex(content));

    // Write the plaintext file we'll use as input.
    File foloRecord = temporaryFolder.newFile("folo." + getClass().getSimpleName() + ".json");

    FileUtils.write(foloRecord, objectMapper.writeValueAsString(record));

    Options opts = new Options();
    opts.setBaseUrls(Collections.singletonList(server.getBaseUri()));

    // Capture the downloads here so we can verify the content.
    File downloads = temporaryFolder.newFolder();

    opts.setDownloads(downloads);
    opts.setLocations(Collections.singletonList(foloRecord.getAbsolutePath()));

    Main firstMain = run(opts);
    assertThat("Wrong number of downloads logged. Should have been 3 with checksum files included.",
            firstMain.getDownloaded(), equalTo(3));

    //re-run to test the function of avoiding re-downloading existing files
    Main secondMain = run(opts);
    assertThat("Wrong number of downloads logged. Should have been 0.", secondMain.getDownloaded(), equalTo(0));
    assertThat("Wrong number of avoided downloads logged. Should have been 1", secondMain.getAvoided(),
            equalTo(3));
    assertThat("Errors should be empty!", secondMain.getErrors().isEmpty(), equalTo(true));
}

From source file:zipkin.autoconfigure.metrics.PrometheusMetricsAutoConfigurationTest.java

@Test
public void detectsGauges() throws Exception {

    PublicMetrics publicMetrics = () -> Collections.singleton(new Metric<Number>("gauge_mem.free", 1024));
    ResponseEntity<String> response = responseForMetrics(publicMetrics);

    String body = response.getBody();

    assertThat(body, equalTo("#TYPE mem_free gauge\n" + "#HELP mem_free mem_free\n" + "mem_free 1024.0\n"));
}

From source file:com.mauersu.util.redis.DefaultSetOperations.java

public Set<V> difference(K key, K otherKey) {
    return difference(key, Collections.singleton(otherKey));
}