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:si.arnes.dropbookmarks.db.UserDAO.java

public Optional<User> findByUsernamePassword(String username, String password) {
    return Optional
            .fromNullable(uniqueResult(namedQuery("si.arnes.dropbookmarks.core.User.findByUsernamePassword")
                    .setParameter("username", username).setParameter("password", password)));
}

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

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

From source file:controllers.HelloInstanceController.java

public void hello(String name) {
    getResponse().bind("greeting", "Hello " + Optional.fromNullable(name).or("World")).render("hello");
}

From source file:org.opendaylight.yangtools.yang.data.api.schema.tree.spi.MaterializedMutableContainerNode.java

@Override
public Optional<TreeNode> getChild(final PathArgument child) {
    return Optional.fromNullable(getModifiedChild(child));
}

From source file:extrabiomes.module.amica.ic2.IC2API.java

IC2API() {
    Class cls;//w  ww  .  ja v  a2  s .co m
    try {
        cls = Class.forName("ic2.api.crops.Crops");
        ic2CropsInstance = cls.getField("instance").get(null);
        addBiomeBonus = Optional
                .fromNullable(cls.getMethod("addBiomeBonus", BiomeGenBase.class, Integer.TYPE, Integer.TYPE));
    } catch (final Exception e) {
        e.printStackTrace();
        addBiomeBonus = Optional.absent();
    }
}

From source file:si.klepra.dropwizardbookmarks.db.UserDAO.java

public Optional<User> findByUsernamePassword(String username, String password) {
    return Optional.fromNullable(
            uniqueResult(namedQuery("si.klepra.dropwizardbookmarks.core.User.findByUsernamePassword")
                    .setParameter("username", username).setParameter("password", password)));
}

From source file:org.zalando.stups.oauth2.spring.client.AccessTokenUtils.java

public static Optional<String> getAccessTokenFromSecurityContext() {
    SecurityContext securityContext = SecurityContextHolder.getContext();

    Authentication authentication = securityContext.getAuthentication();
    if (authentication instanceof OAuth2Authentication) {
        Object userDetails = ((OAuth2Authentication) authentication).getUserAuthentication().getDetails();
        if (userDetails != null) {
            try {
                final Map details = (Map) userDetails;
                return Optional.fromNullable((String) details.get(ACCESS_TOKEN));
            } catch (ClassCastException e) {

                return Optional.absent();
            }/*from w w  w . ja  va 2s  .c  o m*/
        } else {

            return Optional.absent();
        }
    }

    return Optional.absent();
}

From source file:org.locationtech.geogig.web.SingleRepositoryProvider.java

@Override
public Optional<GeoGIG> getGeogig(Request request) {
    return Optional.fromNullable(geogig);
}

From source file:org.eclipse.recommenders.utils.rcp.UUIDHelper.java

private static Optional<String> lookupUUIDFromStore() {
    final RecommendersUtilsPlugin plugin = RecommendersUtilsPlugin.getDefault();
    final IPreferenceStore prefStore = plugin.getPreferenceStore();
    final String uuid = prefStore.getString(PreferencesInitalizer.PROP_UUID);
    if (Strings.isNullOrEmpty(uuid)) {
        return Optional.absent();
    }/*from   ww  w. ja  v a2  s .  co m*/
    return Optional.fromNullable(uuid);
}

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

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