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:org.eclipse.emf.ecoretools.design.service.DiagnosticAttachment.java

public static Optional<Diagnostic> get(EObject cur) {
    DiagnosticAttachment found = getAttachment(cur);
    if (found != null) {
        return Optional.fromNullable(found.getDiagnostic());
    }//www.  j  a  v  a 2  s .c  om
    return Optional.absent();
}

From source file:google.registry.keyring.api.KeyModule.java

@Provides
@Key("marksdbDnlLogin")
static Optional<String> provideMarksdbDnlLogin(Keyring keyring) {
    return Optional.fromNullable(emptyToNull(keyring.getMarksdbDnlLogin()));
}

From source file:nextmethod.threading.OperationCanceledException.java

public OperationCanceledException(final CancellationToken token) {
    this();
    this.token = Optional.fromNullable(token);
}

From source file:org.spongepowered.api.entity.living.meta.RabbitTypes.java

public static Optional<RabbitType> getTypeFromString(String name) {
    return Optional.fromNullable(null);
}

From source file:me.taylorkelly.mywarp.util.IterableUtils.java

/**
 * Returns an Optional containing the first element in iterable or {@code Optional.absend()} if the iterable is
 * empty./*from   w w w . ja  va 2 s  . c o m*/
 *
 * @param <T>      the type of entries
 * @param iterable the iterable to check
 * @return the first element
 */
public static <T> Optional<T> getFirst(Iterable<T> iterable) {
    T first = Iterables.getFirst(iterable, null);
    return Optional.fromNullable(first);
}

From source file:com.infobip.jira.Version.java

@JsonCreator
public static Version of(@JsonProperty("name") String name, @JsonProperty("released") Boolean released,
        @JsonProperty("releaseDate") String releaseDate, @JsonProperty("id") Integer id) {

    return new Version(name, Optional.<ProjectKey>absent(), released, releaseDate, Optional.fromNullable(id));
}

From source file:ezbake.thrift.authentication.PeerSharedData.java

public static void setPeerPrincipal(String dn) {
    try {//from   www .j a v a2  s .com
        peerPrincipal.set(Optional.fromNullable(new LdapName(dn)));
    } catch (InvalidNameException e) {
        logger.warn("Unable to parse peer DN. PeerPrincipal will be unavailable");
    }
}

From source file:info.archinnov.achilles.type.Options.java

public Optional<Integer> getTtl() {
    return Optional.fromNullable(ttl);
}

From source file:springfox.documentation.builders.BuilderDefaults.java

/**
 * Returns this default value if the new value is null
 *
 * @param newValue     - new value//from  w w  w .j av a 2 s.  co  m
 * @param defaultValue - default value
 * @param <T>          - Represents any type that is nullable
 * @return Coalesces the newValue and defaultValue to return a non-null value
 */
public static <T> T defaultIfAbsent(T newValue, T defaultValue) {
    return Optional.fromNullable(newValue).or(Optional.fromNullable(defaultValue)).orNull();
}

From source file:com.googlecode.blaisemath.style.ImmutableAttributeSet.java

/**
 * Makes an immutable copy of the provided attribute set.
 * @param set the set to copy// w  w  w .j  av a  2  s  . co  m
 * @return an immutable copy
 */
static ImmutableAttributeSet immutableCopyOf(AttributeSet set) {
    ImmutableAttributeSet res = new ImmutableAttributeSet();
    res.parent = Optional.fromNullable(set.getParent());
    res.attributeMap.putAll(set.attributeMap);
    return res;
}