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:org.opendaylight.protocol.bgp.rib.spi.PeerRoleUtil.java

public static PeerRole roleForChange(final Optional<NormalizedNode<?, ?>> maybePeerRole) {
    if (maybePeerRole.isPresent()) {
        final LeafNode<?> peerRoleLeaf = (LeafNode<?>) maybePeerRole.get();
        return PeerRole.valueOf(BindingMapping.getClassName((String) peerRoleLeaf.getValue()));
    }//from w  ww.jav a2s .  c o m
    return null;
}

From source file:info.rynkowski.hamsterclient.ui.utils.TimeConverter.java

public static @NonNull String toString(@NonNull Optional<Calendar> calendar, @NonNull String format) {
    if (calendar.isPresent()) {
        return toString(calendar.get(), format);
    }/*from  w  w  w .  j a va 2 s  . c  om*/
    return "";
}

From source file:com.facebook.buck.util.Optionals.java

public static <T> void addIfPresent(Optional<T> optional, ImmutableCollection.Builder<T> collection) {
    if (optional.isPresent()) {
        collection.add(optional.get());/*from  w  ww  .java  2  s  .  c o m*/
    }
}

From source file:org.raml.api.RamlTypes.java

public static RamlType fromType(Type type) {
    Optional<ScalarType> scalarTypeOptional = ScalarType.fromType(type);

    if (scalarTypeOptional.isPresent()) {
        return scalarTypeOptional.get();
    }/*ww  w.  j  a  v a 2s .  co  m*/

    throw new RuntimeException(format("unknown type: %s", type));
}

From source file:com.facebook.buck.util.Optionals.java

public static <K, T> void putIfPresent(Optional<T> optional, K key, ImmutableMap.Builder<K, T> collection) {
    if (optional.isPresent()) {
        collection.put(key, optional.get());
    }//from  w  w  w.j  av a 2s . c  om
}

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

static TreeNode getChildFromData(final NormalizedNodeContainer<?, PathArgument, NormalizedNode<?, ?>> data,
        final PathArgument childId, final Version version) {
    final Optional<NormalizedNode<?, ?>> child = data.getChild(childId);
    return child.isPresent() ? TreeNodeFactory.createTreeNode(child.get(), version) : null;
}

From source file:org.geogit.storage.sqlite.SQLiteStorage.java

/**
 * Returns the .geogit directory for the platform object.
 *///from   w ww.ja va2 s . c  o m
public static File geogitDir(Platform platform) {
    Optional<URL> url = new ResolveGeogitDir(platform).call();
    if (!url.isPresent()) {
        throw new RuntimeException("Unable to resolve .geogit directory");
    }
    try {
        return new File(url.get().toURI());
    } catch (URISyntaxException e) {
        throw new RuntimeException("Error resolving .geogit directory", e);
    }
}

From source file:rickbw.incubator.choice.Choices.java

public static <F, T> Optional<T> map(final Optional<F> from, final Function<? super F, ? extends T> func) {
    if (from.isPresent()) {
        final T result = func.apply(from.get());
        return Optional.of(result);
    } else {//w ww . j  av  a2s .  c o  m
        return Optional.absent();
    }
}

From source file:cc.recommenders.utils.parser.VersionParserFactory.java

public static Version parse(final String version) {
    final Optional<IVersionParser> opt = getCompatibleParser(version);
    ensureIsTrue(opt.isPresent(), "Given version string '%s' has unknown format and can not be parsed.",
            version);/*from w  ww. j  a v  a  2 s.c  o  m*/
    return opt.get().parse(version);
}

From source file:com.facebook.buck.haskell.HaskellTestUtils.java

/**
 * Assume that we can find a haskell compiler on the system.
 *///from  ww w.  j av  a2 s  . co  m
public static void assumeSystemCompiler() {
    HaskellBuckConfig fakeConfig = new HaskellBuckConfig(FakeBuckConfig.builder().build(),
            new ExecutableFinder());
    Optional<Path> compilerOptional = fakeConfig.getSystemCompiler();
    assumeTrue(compilerOptional.isPresent());
}