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

Introduction

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

Prototype

public static <T> Optional<T> of(T reference)

Source Link

Document

Returns an Optional instance containing the given non-null reference.

Usage

From source file:org.eclipse.buildship.core.util.file.FileUtils.java

/**
 * Derives a {@code File} instance with absolute path from the specified path.
 *
 * @param path the relative or absolute path of the {@code File} instance to derive
 * @return the absolute {@code File} if the path is not {@code null} or empty, otherwise
 * {@link Optional#absent()}/*from  ww  w. j  a  v a2s  .com*/
 */
public static Optional<File> getAbsoluteFile(String path) {
    if (Strings.isNullOrEmpty(path)) {
        return Optional.absent();
    } else {
        return Optional.of(new File(path.trim()).getAbsoluteFile());
    }
}

From source file:org.verdictdb.core.querying.SubscriptionTicket.java

public SubscriptionTicket(ExecutableNodeBase subscriber, int channel) {
    this.subscriber = subscriber;
    this.channel = Optional.of(channel);
}

From source file:org.sonar.server.permission.ws.ProjectWsRef.java

public static Optional<ProjectWsRef> newOptionalWsProjectRef(@Nullable String uuid, @Nullable String key) {
    if (uuid == null && key == null) {
        return Optional.absent();
    }/*from  w  ww .j av  a2  s  .  c om*/

    return Optional.of(new ProjectWsRef(uuid, key));
}

From source file:org.immutables.fixture.OptionalCast.java

@SuppressWarnings("CheckReturnValue")
default void use() {
    ImmutableOptionalCast.of(Optional.absent(), Optional.of("String is object"), Optional.<String[]>absent(),
            Optional.absent());//from   w w  w.  j  av  a  2  s  . c  o  m
}

From source file:org.apache.beam.sdk.extensions.sql.impl.utils.SqlTypeUtils.java

/**
 * Finds an operand with the type in typesToFind. Returns Optional.absent() if no operand found
 * with matching type/*from  w w  w . j a v  a 2  s  .c o m*/
 */
public static Optional<BeamSqlExpression> findExpressionOfType(List<BeamSqlExpression> operands,
        Collection<SqlTypeName> typesToFind) {

    for (BeamSqlExpression operand : operands) {
        if (typesToFind.contains(operand.getOutputType())) {
            return Optional.of(operand);
        }
    }

    return Optional.absent();
}

From source file:com.google.devtools.build.xcode.zippingoutput.ArgumentsParsing.java

/**
 * @param args raw arguments passed to wrapper tool through the {@code main} method
 * @param subtoolName name of the subtool, such as "actool"
 * @return an instance based on results of parsing the given arguments.
 *//*from   w  w w .j  a  v a 2s.  c  o  m*/
public static ArgumentsParsing parse(FileSystem fileSystem, String[] args, String wrapperName,
        String subtoolName) {
    String capitalizedSubtool = subtoolName.toUpperCase(Locale.US);
    if (args.length < MIN_ARGS) {
        return new ArgumentsParsing(Optional.of(String.format(
                "Expected at least %1$d args.\n" + "Usage: java %2$s OUTZIP ARCHIVEROOT (%3$s_CMD %3$s ARGS)\n"
                        + "Runs %4$s and zips the results.\n"
                        + "OUTZIP - the path to place the output zip file.\n"
                        + "ARCHIVEROOT - the path in the zip to place the output, or an empty\n"
                        + "    string for the root of the zip. e.g. 'Payload/foo.app'. If\n"
                        + "    this tool outputs a single file, ARCHIVEROOT is the name of\n"
                        + "    the only file in the zip file.\n" + "%3$s_CMD - path to the subtool.\n"
                        + "    e.g. /Applications/Xcode.app/Contents/Developer/usr/bin/actool\n"
                        + "%3$s ARGS - the arguments to pass to %4$s besides the\n"
                        + "    one that specifies the output directory.\n",
                MIN_ARGS, wrapperName, capitalizedSubtool, subtoolName)), Optional.<Arguments>absent());
    }
    String outputZip = args[0];
    String archiveRoot = args[1];
    String subtoolCmd = args[2];
    if (archiveRoot.startsWith("/")) {
        return new ArgumentsParsing(
                Optional.of(String.format("Archive root cannot start with /: '%s'\n", archiveRoot)),
                Optional.<Arguments>absent());
    }

    // TODO(bazel-team): Remove this hack when the released version of Bazel uses the correct momc
    // path for device builds.
    subtoolCmd = subtoolCmd.replace("/iPhoneOS.platform/", "/iPhoneSimulator.platform/");
    if (!Files.isRegularFile(fileSystem.getPath(subtoolCmd))) {
        return new ArgumentsParsing(Optional
                .of(String.format("The given %s_CMD does not exist: '%s'\n", capitalizedSubtool, subtoolCmd)),
                Optional.<Arguments>absent());
    }
    return new ArgumentsParsing(Optional.<String>absent(), Optional.<Arguments>of(new Arguments(outputZip,
            archiveRoot, subtoolCmd, ImmutableList.copyOf(args).subList(MIN_ARGS, args.length))));
}

From source file:com.siemens.sw360.portal.common.datatables.data.DataTablesColumn.java

public DataTablesColumn(DataTablesSearch search) {
    this.search = Optional.of(search);
}

From source file:org.jtwig.functions.parameters.resolve.HttpRequestParameterResolver.java

@Override
public Optional<Value> resolve(JavaMethodParameter parameter) {
    if (parameter.type().isAssignableFrom(HttpServletRequest.class))
        return Optional.of(new Value(LocalThreadHolder.getServletRequest()));
    return Optional.absent();
}

From source file:org.opendaylight.genius.interfacemanager.renderer.ovs.confighelpers.OvsVlanMemberConfigAddHelper.java

public static List<ListenableFuture<Void>> addConfiguration(DataBroker dataBroker, ParentRefs parentRefs,
        Interface interfaceNew, IfL2vlan ifL2vlan, IdManagerService idManager) {
    LOG.debug("add vlan member configuration {}", interfaceNew.getName());
    List<ListenableFuture<Void>> futures = new ArrayList<>();
    WriteTransaction writeTransaction = dataBroker.newWriteOnlyTransaction();
    InterfaceManagerCommonUtils.createInterfaceChildEntry(parentRefs.getParentInterface(),
            interfaceNew.getName(), Optional.of(writeTransaction));
    futures.add(writeTransaction.submit());

    InterfaceKey interfaceKey = new InterfaceKey(parentRefs.getParentInterface());
    Interface ifaceParent = InterfaceManagerCommonUtils.getInterfaceFromConfigDS(interfaceKey, dataBroker);
    if (ifaceParent == null) {
        LOG.info("Parent Interface: {} not found when adding child interface: {}",
                parentRefs.getParentInterface(), interfaceNew.getName());
        return futures;
    }/*from  w w  w.  j  a v a  2 s  .com*/

    IfL2vlan parentIfL2Vlan = ifaceParent.getAugmentation(IfL2vlan.class);
    if (parentIfL2Vlan == null || parentIfL2Vlan.getL2vlanMode() != IfL2vlan.L2vlanMode.Trunk) {
        LOG.error("Parent Interface: {} not of trunk Type when adding trunk-member: {}", ifaceParent,
                interfaceNew);
        return futures;
    }

    org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev140508.interfaces.state.Interface ifState = InterfaceManagerCommonUtils
            .getInterfaceStateFromOperDS(parentRefs.getParentInterface(), dataBroker);
    LOG.debug("add interface state info for vlan member {}, with ifState for parent {}", interfaceNew.getName(),
            ifState);
    InterfaceManagerCommonUtils.addStateEntry(interfaceNew.getName(), dataBroker, idManager, futures, ifState);
    return futures;
}

From source file:manifestor.util.ManifestUtil.java

public final static Optional<Map<String, String>> readManifestFromInputStream(final InputStream inputStream) {
    try {//from  w  ww .j  ava 2  s.c  o m
        final Map<String, String> manifestMap = ManifestUtil.load(inputStream);
        return Optional.of(manifestMap);
    } catch (IOException ioex) {
        logger.error("Failed to fetch manifest details", ioex);
    }

    return Optional.absent();
}