Example usage for com.google.common.base Optional of

Introduction

In this page you can find the example usage for com.google.common.base Optional of.

Prototype

public static <T> Optional<T> of(T reference)

Source Link

Document

Returns an Optional instance containing the given non-null reference.

Usage

From source file:com.epam.ta.reportportal.core.widget.content.GadgetTypes.java

public static Optional<GadgetTypes> findByName(@Nullable String name) {
    if (null == name) {
        return Optional.absent();
    }//from   ww w . j av a2s  .com
    for (GadgetTypes gadgetType : GadgetTypes.values()) {
        if (gadgetType.getType().equals(name)) {
            return Optional.of(gadgetType);
        }
    }
    return Optional.absent();
}

From source file:org.automagic.deps.doctor.DependenciesDoctor.java

@SuppressWarnings("unchecked")
public Optional<List<TransitiveDependency>> getAntidote() {

    List<TransitiveDepsGroup> transitiveDepsGroups = pomSpy.getTransitiveDepsGroups();
    List<TransitiveDepsGroup> conflictingDepsGroups = getConflictingDepsGroups(transitiveDepsGroups);

    if (conflictingDepsGroups.isEmpty()) {
        return Optional.absent();
    }/*from   w w  w . j  a  v  a 2 s.  c  om*/

    List<TransitiveDependency> list = new ArrayList<>();
    Optional<List<TransitiveDependency>> antidote = Optional.of(list);

    for (TransitiveDepsGroup group : conflictingDepsGroups) {

        // search the dependency with the highest version in the group
        TransitiveDependency antidoteDep = group.getDependencies().get(0);
        for (TransitiveDependency dependency : group.getDependencies()) {
            if (dependency.getVersion().compareTo(antidoteDep.getVersion()) > 0) {
                antidoteDep = dependency;
            }
        }

        list.add(antidoteDep);
    }

    return antidote;
}

From source file:se.sics.sweep.webservice.toolbox.Result.java

public static Result badRequest(String reason) {
    return new Result(Status.BAD_REQUEST, Optional.of(reason), Optional.absent());
}

From source file:com.android.camera.one.v2.Camera2OneCameraManagerImpl.java

/**
 * Create a new camera2 api hardware manager.
 *//*  w w w. ja  v a2  s  . c  om*/
public static Optional<Camera2OneCameraManagerImpl> create() {
    if (!ApiHelper.HAS_CAMERA_2_API) {
        return Optional.absent();
    }
    CameraManager cameraManager;
    try {
        cameraManager = AndroidServices.instance().provideCameraManager();
    } catch (IllegalStateException ex) {
        Log.e(TAG, "camera2.CameraManager is not available.");
        return Optional.absent();
    }
    Camera2OneCameraManagerImpl hardwareManager = new Camera2OneCameraManagerImpl(cameraManager);
    return Optional.of(hardwareManager);
}

From source file:at.ac.univie.isc.asio.d2rq.D2rqTools.java

/**
 * Find a single resource with given rdf:type in the model if one is present.
 *
 * @param model model to search in/*from ww w .  j av a 2s.c  om*/
 * @param type  type of required resource
 * @return the resource if present
 * @throws IllegalArgumentException if multiple resources with matching type are found
 */
static Optional<Resource> findSingleOfType(final Model model, final Resource type) {
    final ResIterator it = model.listResourcesWithProperty(RDF.type, type);
    final Optional<Resource> found = it.hasNext() ? Optional.of(it.nextResource())
            : Optional.<Resource>absent();
    if (found.isPresent() && it.hasNext()) {
        throw new IllegalArgumentException("found multiple <" + type + "> resources");
    }
    return found;
}

From source file:de.flapdoodle.logparser.io.StringListReaderAdapter.java

@Override
public synchronized Optional<String> nextLine() throws IOException {
    if (_idx < _lines.size()) {
        String line = _lines.get(_idx);
        _idx++;/* www .j a  v  a  2  s  .com*/
        return Optional.of(line);
    }
    return Optional.absent();
}

From source file:org.opendaylight.restconf.jersey.providers.AbstractIdentifierAwareJaxRsProvider.java

protected InstanceIdentifierContext<?> getInstanceIdentifierContext() {
    return ParserIdentifier.toInstanceIdentifier(getIdentifier(),
            ControllerContext.getInstance().getGlobalSchema(),
            Optional.of(RestConnectorProvider.getMountPointService()));
}

From source file:org.opendaylight.yangtools.yang.data.impl.schema.tree.OrderedMapModificationStrategy.java

OrderedMapModificationStrategy(final ListSchemaNode schema, final DataTreeConfiguration treeConfig) {
    super(OrderedMapNode.class, treeConfig);
    entryStrategy = Optional.of(new ListEntryModificationStrategy(schema, treeConfig));
}

From source file:org.locationtech.geogig.plumbing.CommitFromDateOp.java

@Override
protected Optional<RevCommit> _call() {
    Preconditions.checkState(date != null);
    long time = date.getTime();
    Iterator<RevCommit> iter = command(LogOp.class).setFirstParentOnly(true).call();
    while (iter.hasNext()) {
        RevCommit commit = iter.next();//from   w  ww .  j a v a 2  s .c o  m
        if (commit.getCommitter().getTimestamp() < time) {
            return Optional.of(commit);
        }
    }
    return Optional.absent();
}

From source file:dattln.auth.LdapAuthenticator.java

public Optional<User> authenticate(BasicCredentials basicCredentials) throws AuthenticationException {
    if (delegatingAuthenticator.authenticate(basicCredentials)) {
        return Optional.of(new User(basicCredentials.getUsername()));
    }//  www  . ja  v a  2s. c o m
    return Optional.absent();
}