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:com.spotify.heroic.aggregation.simple.Max.java

@JsonCreator
public Max(@JsonProperty("sampling") SamplingQuery sampling) {
    super(Optional.fromNullable(sampling).or(SamplingQuery::empty));
}

From source file:org.mayocat.shop.payment.internal.PaymentRequestBuilder.java

public PaymentRequestBuilder withRedirectionTarget(String target) {
    this.redirectionTarget = Optional.fromNullable(target);
    return this;
}

From source file:com.spotify.heroic.aggregation.simple.Min.java

@JsonCreator
public Min(@JsonProperty("sampling") SamplingQuery sampling) {
    super(Optional.fromNullable(sampling).or(SamplingQuery::empty));
}

From source file:com.spotify.heroic.aggregation.simple.Sum.java

@JsonCreator
public Sum(@JsonProperty("sampling") SamplingQuery sampling) {
    super(Optional.fromNullable(sampling).or(SamplingQuery::empty));
}

From source file:org.geogig.osm.internal.history.Change.java

public Optional<Relation> getRelation() {
    return Optional.fromNullable(relation);
}

From source file:org.syncany.operations.daemon.messages.api.JsonMessageFactory.java

public static Message toMessage(String messageStr) throws Exception {
    String messageType = getMessageType(messageStr);
    Class<? extends Message> messageClass = getMessageClass(messageType);

    JsonObject result = PARSER.parse(messageStr).getAsJsonObject();
    JsonElement serializedMessage = Optional.fromNullable(Iterables.get(result.entrySet(), 0).getValue())
            .or(new JsonObject());

    Message message = SERIALIZER.fromJson(serializedMessage, messageClass);
    logger.log(Level.INFO, "Message created: " + message);

    return message;
}

From source file:de.uniulm.omi.cloudiator.sword.drivers.openstack.strategy.ConfigurationFloatingIpPoolStrategy.java

@Override
public Optional<String> apply(String virtualMachine) {
    checkNotNull(virtualMachine);
    return Optional.fromNullable(floatingIpPoolName);
}

From source file:com.spotify.heroic.aggregation.simple.StdDev.java

@JsonCreator
public StdDev(@JsonProperty("sampling") SamplingQuery sampling) {
    super(Optional.fromNullable(sampling).or(SamplingQuery::empty));
}

From source file:com.spotify.heroic.aggregation.simple.Spread.java

@JsonCreator
public Spread(@JsonProperty("sampling") SamplingQuery sampling) {
    super(Optional.fromNullable(sampling).or(SamplingQuery::empty));
}

From source file:com.spotify.heroic.aggregation.simple.Template.java

@JsonCreator
public Template(@JsonProperty("sampling") SamplingQuery sampling) {
    super(Optional.fromNullable(sampling).or(SamplingQuery::empty));
}