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

Introduction

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

Prototype

public abstract boolean isPresent();

Source Link

Document

Returns true if this holder contains a (non-null) instance.

Usage

From source file:com.aegiswallet.widgets.AegisTypeface.java

public static void applyTypeface(TextView widget, Optional<Font> font) {
    Optional<Typeface> typeface = createTypeface(widget, font);
    if (typeface.isPresent()) {
        widget.setTypeface(typeface.get());
    }// w  w w. j ava 2 s.c  om
}

From source file:com.brq.wallet.BitcoinUriWithAddress.java

public static Optional<BitcoinUriWithAddress> parseWithAddress(String uri, NetworkParameters network) {
    Optional<? extends BitcoinUri> bitcoinUri = parse(uri, network);
    if (!bitcoinUri.isPresent()) {
        return Optional.absent();
    }//w w  w. j a va 2s. co  m
    return fromBitcoinUri(bitcoinUri.get());
}

From source file:org.jclouds.aliyun.ecs.domain.IpProtocol.java

public static IpProtocol fromValue(String value) {
    Optional<IpProtocol> ipProtocol = Enums.getIfPresent(IpProtocol.class, value.toUpperCase());
    checkArgument(ipProtocol.isPresent(), "Expected one of %s but was %s",
            Joiner.on(',').join(IpProtocol.values()), value);
    return ipProtocol.get();
}

From source file:org.apache.cassandra.utils.progress.jmx.LegacyJMXProgressSupport.java

protected static Optional<int[]> getLegacyUserdata(String tag, ProgressEvent event) {
    Optional<Status> status = getStatus(event);
    if (status.isPresent()) {
        int[] result = new int[2];
        result[0] = getCmd(tag);/*ww w  .  j  a va2  s .co  m*/
        result[1] = status.get().ordinal();
        return Optional.of(result);
    }
    return Optional.absent();
}

From source file:com.sk89q.worldedit.world.biome.Biomes.java

/**
 * Find a biome that matches the given input name.
 *
 * @param biomes a list of biomes/* w w  w. ja v a  2  s  . c  o m*/
 * @param name the name to test
 * @param registry a biome registry
 * @return a biome or null
 */
@Nullable
public static BaseBiome findBiomeByName(Collection<BaseBiome> biomes, String name, BiomeRegistry registry) {
    checkNotNull(biomes);
    checkNotNull(name);
    checkNotNull(registry);

    Function<String, ? extends Number> compare = new LevenshteinDistance(name, false,
            LevenshteinDistance.STANDARD_CHARS);
    WeightedChoice<BaseBiome> chooser = new WeightedChoice<BaseBiome>(
            Functions.compose(compare, new BiomeName(registry)), 0);
    for (BaseBiome biome : biomes) {
        chooser.consider(biome);
    }
    Optional<Choice<BaseBiome>> choice = chooser.getChoice();
    if (choice.isPresent() && choice.get().getScore() <= 1) {
        return choice.get().getValue();
    } else {
        return null;
    }
}

From source file:com.complexible.common.base.Copyables.java

/**
 * If the {@link Optional} has ({@link Optional#isPresent isPresent a value} a {@link Copyable#copy} is made of the object.
 * Otherwise, with an absent value, the Optional is returned as-is
 *
 * @param theObj    the object to copy//from   ww  w .  j  ava 2  s  .  c  o m
 * @param <T>       the object's type
 * @return          an Optional which contains a copy of the object if a value is present on the optional.
 */
public static <T> Optional<T> copy(final Optional<T> theObj) {
    if (theObj.isPresent()) {
        return Optional.of(copy(theObj.get()));
    } else {
        // no value, no need to make a copy
        return theObj;
    }
}

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

public static String getUUID() {
    final Optional<String> uuid = lookupUUIDFromStore();
    if (uuid.isPresent()) {
        return uuid.get();
    }/*  w ww .  j  av  a2s .  c o m*/
    final String newUuid = generateGlobalUUID();
    storeUUID(newUuid);
    return newUuid;
}

From source file:org.sonar.server.computation.task.projectanalysis.step.UpdateQualityProfilesLastUsedDateStep.java

private static Set<QualityProfile> parseQualityProfiles(Optional<Measure> measure) {
    if (!measure.isPresent()) {
        return emptySet();
    }//  w w w  . j  ava2  s  .c  o m

    String data = measure.get().getStringValue();
    return data == null ? emptySet() : QPMeasureData.fromJson(data).getProfiles();
}

From source file:com.treasuredata.client.model.TDSavedQueryBuilder.java

private static <T> void checkPresence(Optional<T> opt, String errorMessage) {
    if (!opt.isPresent()) {
        throw new TDClientException(TDClientException.ErrorType.INVALID_INPUT, errorMessage);
    }// w  w w  .ja va 2s.c  o m
}

From source file:edu.berkeley.sparrow.daemon.util.ConfigUtil.java

/**
 * Parses the list of backends from a {@link Configuration}.
 *
 * Returns a map of address of backends to a {@link TResourceVector} describing the
 * total resource capacity for that backend.
 *///from   w  ww . ja  v a  2s  .  c om
public static Set<InetSocketAddress> parseBackends(Configuration conf) {
    if (!conf.containsKey(SparrowConf.STATIC_NODE_MONITORS)) {
        throw new RuntimeException("Missing configuration node monitor list");
    }

    Set<InetSocketAddress> backends = new HashSet<InetSocketAddress>();

    for (String node : conf.getStringArray(SparrowConf.STATIC_NODE_MONITORS)) {
        Optional<InetSocketAddress> addr = Serialization.strToSocket(node);
        if (!addr.isPresent()) {
            LOG.warn("Bad backend address: " + node);
            continue;
        }
        backends.add(addr.get());
    }

    return backends;
}