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:springfox.bean.validators.plugins.BeanValidators.java

@VisibleForTesting
static <T extends Annotation> Optional<T> annotationFrom(AnnotatedMember nullableMember,
        Class<T> annotationType) {

    Optional<AnnotatedMember> member = Optional.fromNullable(nullableMember);
    Optional<T> notNull = Optional.absent();
    if (member.isPresent()) {
        notNull = FluentIterable.from(member.get().annotations()).filter(annotationType).first();
    }//from w  w w  . j a v  a2 s.  c o m
    return notNull;
}

From source file:org.geogit.geotools.data.GeogitTransactionState.java

public Optional<GeogitTransaction> getGeogitTransaction() {
    return Optional.fromNullable(this.geogitTx);
}

From source file:org.jclouds.abiquo.domain.infrastructure.HypervisorType.java

public boolean supportsExtraHardDisks() {
    Optional<String> constraint = Optional.fromNullable(getConstraints().get("extra_hard_disk"));
    return Boolean.parseBoolean(constraint.or("true"));
}

From source file:com.youtube.serializer.YoutubeActivityUtil.java

/**
 * Given a {@link com.google.api.services.youtube.YouTube.Videos} object and an
 * {@link org.apache.streams.pojo.json.Activity} object, fill out the appropriate details
 *
 * @param video/* w w w. ja v  a 2s .  c o m*/
 * @param activity
 * @throws org.apache.streams.exceptions.ActivitySerializerException
 */
public static void updateActivity(Video video, Activity activity, String channelId)
        throws ActivitySerializerException {
    activity.setActor(buildActor(video, video.getSnippet().getChannelId()));
    activity.setVerb("post");

    activity.setId(formatId(activity.getVerb(), Optional.fromNullable(video.getId()).orNull()));

    activity.setPublished(new DateTime(video.getSnippet().getPublishedAt().getValue()));
    activity.setTitle(video.getSnippet().getTitle());
    activity.setContent(video.getSnippet().getDescription());
    activity.setUrl("https://www.youtube.com/watch?v=" + video.getId());

    activity.setProvider(getProvider());

    activity.setObject(buildActivityObject(video));

    addYoutubeExtensions(activity, video);
}

From source file:com.spotify.heroic.metric.Event.java

public Event(final long timestamp, final Map<String, String> payload) {
    this.timestamp = timestamp;
    this.payload = Optional.fromNullable(payload).or(EMPTY_PAYLOAD);
}

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

/**
 * This method finds the flavor by name and kind.
 *
 * @param name - supplies the name of the flavor
 * @param kind - supplies the kind of the flavor
 * @return - returns and Optional that includes a flavor or .absent() if no flavor by this name and kind
 * exists./*from   www  .  j  ava 2  s.com*/
 */
public Optional<FlavorEntity> findByNameAndKind(String name, String kind) {
    return Optional.fromNullable(uniqueResult(
            namedQuery("Flavor.findByNameAndKind").setString("name", name).setString("kind", kind)));
}

From source file:org.jclouds.googlecomputeengine.compute.loaders.SubnetworkLoader.java

@Override
public Optional<Subnetwork> load(RegionAndName key) throws ExecutionException {
    try {//from   www  .  j a  va 2s . c o m
        return Optional.fromNullable(api.subnetworksInRegion(key.regionId()).get(key.name()));
    } catch (Exception ex) {
        throw new ExecutionException(message(key, ex), ex);
    }
}

From source file:com.facebook.swift.parser.model.ThriftField.java

public ThriftField(String name, ThriftType type, Long identifier, Required required, ConstValue value,
        List<TypeAnnotation> annotations) {
    this.name = checkNotNull(name, "name");
    this.type = checkNotNull(type, "type");
    this.identifier = Optional.fromNullable(identifier);
    this.required = checkNotNull(required, "required");
    this.value = Optional.fromNullable(value);
    this.annotations = checkNotNull(annotations, "annotations");
}

From source file:de.flapdoodle.logparser.stacktrace.AbstractStackFrame.java

public Optional<CauseBy> cause() {
    return Optional.fromNullable(_cause);
}

From source file:com.twitter.aurora.scheduler.storage.mem.MemQuotaStore.java

@Override
public Optional<IQuota> fetchQuota(String role) {
    checkNotNull(role);
    return Optional.fromNullable(quotas.get(role));
}