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

Introduction

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

Prototype

public static <T> Optional<T> fromNullable(@Nullable T nullableReference)

Source Link

Document

If nullableReference is non-null, returns an Optional instance containing that reference; otherwise returns Optional#absent .

Usage

From source file:me.lazerka.gae.jersey.oauth2.facebook.FacebookUserPrincipal.java

public Optional<DebugTokenResponse> getDebugTokenResponse() {
    return Optional.fromNullable(debugTokenResponse);
}

From source file:models.petstore.ApiKeyHeader.java

@Override
public String getDefaultValue() {
    Context context = RouteDispatcher.getRouteContext();
    if (context == null) {
        // no context because we are generated a Swagger specification
        return DEFAULT;
    }/*from w ww  .  j a  v a  2s. c om*/

    // return the primary account token or DEFAULT
    Account account = new AuthExtractor().extract(context);
    return Optional.fromNullable(account.getToken()).or(DEFAULT);
}

From source file:com.vmware.photon.controller.apife.db.dao.VmDao.java

public Optional<VmEntity> findByName(String name, ProjectEntity parent) {
    VmEntity result = uniqueResult(/*from  w w  w  . j  a va 2 s  .  c  om*/
            namedQuery(findByName).setString("name", name).setString("projectId", parent.getId()));
    return Optional.fromNullable(result);
}

From source file:io.crate.planner.node.dml.CopyTo.java

public CopyTo(UUID id, Plan innerPlan, @Nullable MergePhase handlerMergeNode) {
    this.id = id;
    this.innerPlan = innerPlan;
    this.handlerMergeNode = Optional.fromNullable(handlerMergeNode);
}

From source file:com.cloudera.exhibit.server.jdbi.JdbiExhibitStore.java

@Override
public Optional<Exhibit> find(String id) {
    return Optional.fromNullable(exhibits.get(id));
}

From source file:com.spotify.helios.agent.KafkaClientProvider.java

public KafkaClientProvider(@Nullable final List<String> brokerList) {
    partialConfigs = Optional.fromNullable(brokerList)
            .transform(new Function<List<String>, ImmutableMap<String, Object>>() {
                @Nullable//from   w w  w  .  j a va 2  s  .co m
                @Override
                public ImmutableMap<String, Object> apply(List<String> input) {
                    return ImmutableMap.<String, Object>of("bootstrap.servers", Joiner.on(',').join(input),
                            "acks", KAFKA_QUORUM_PARAMETER, "client.id", KAFKA_HELIOS_CLIENT_ID,
                            "metadata.fetch.timeout.ms", 5000);
                }
            });
}

From source file:org.locationtech.geogig.api.plumbing.diff.DefaultGeometryDiffImpl.java

private CharSequence geometryValueAsString(Optional<Geometry> value) {
    return TextValueSerializer.asString(Optional.fromNullable((Object) value.orNull()));
}

From source file:org.locationtech.geogig.model.impl.RevPersonImpl.java

/**
 * @return the email
 */
@Override
public Optional<String> getEmail() {
    return Optional.fromNullable(email);
}

From source file:com.facebook.buck.rules.ProjectConfigBuilder.java

public ProjectConfigBuilder setTestRoots(@Nullable ImmutableList<String> testRoots) {
    arg.testRoots = Optional.fromNullable(testRoots);
    return this;
}

From source file:com.citytechinc.cq.clientlibs.core.listeners.components.factory.impl.DefaultDependentComponentEventFactory.java

@Override
public Optional<DependentComponentEvent> make(Event event,
        Map<String, DependentComponent> dependentComponentByPathMap, Session session)
        throws RepositoryException {

    switch (event.getType()) {
    case Event.NODE_ADDED:
        return Optional.fromNullable(makeForNodeAddedEvent(event, session.getNode(event.getPath())));
    case Event.NODE_MOVED:
        return Optional.fromNullable(makeForNodeMovedEvent(event, session.getNode(event.getPath())));
    case Event.NODE_REMOVED:
        return Optional.fromNullable(makeForNodeRemovedEvent(event, dependentComponentByPathMap));
    case Event.PROPERTY_ADDED:
        return Optional.fromNullable(makeForPropertyAddedEvent(event, session.getProperty(event.getPath())));
    case Event.PROPERTY_CHANGED:
        return Optional.fromNullable(makeForPropertyChangedEvent(event, session.getProperty(event.getPath())));
    case Event.PROPERTY_REMOVED:
        return Optional.fromNullable(makeForPropertyRemovedEvent(event, dependentComponentByPathMap));
    case Event.PERSIST:
        return Optional.of(makeForPersistEvent());
    default:// w w  w  . jav  a  2 s  . c o m
        return Optional.absent();
    }

}