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:com.querydsl.sql.namemapping.PreConfiguredNameMapping.java

public Optional<SchemaAndTable> getOverride(SchemaAndTable key) {
    if (!schemaTables.isEmpty() && key.getSchema() != null) {
        if (schemaTables.containsKey(key)) {
            return Optional.of(schemaTables.get(key));
        }/*from ww w .ja  v a 2 s . co  m*/
    }

    if (tables.containsKey(key.getTable())) {
        String table = tables.get(key.getTable());
        return Optional.of(new SchemaAndTable(key.getSchema(), table));
    }
    return Optional.absent();
}

From source file:org.jboss.aerogear.controller.router.rest.pagination.Links.java

public Links(final RequestPathParser requestPathParser, final PaginationProperties paging) {
    first = requestPathParser.replace(0, paging.limit());
    next = requestPathParser.replace(paging.nextOffset(), paging.limit());
    previous = requestPathParser.replace(paging.previousOffset(), paging.limit());
    last = paging.total().isPresent()//w  ww.  j av a2  s.co m
            ? Optional.of(requestPathParser.replace(paging.total().get() - paging.limit(), paging.limit()))
            : Optional.<String>absent();
}

From source file:gobblin.runtime.scheduler.DefaultJobSpecSchedulerListenerImpl.java

public DefaultJobSpecSchedulerListenerImpl(Logger log) {
    this(Optional.of(log));
}

From source file:org.apache.aurora.scheduler.quota.QuotaCheckResult.java

static QuotaCheckResult greaterOrEqual(ResourceBag a, ResourceBag b) {
    StringBuilder details = new StringBuilder();
    ResourceBag difference = a.subtract(b);
    difference.filter(IS_NEGATIVE).streamResourceVectors()
            .forEach(entry -> addMessage(entry.getKey(), Math.abs(entry.getValue()), details));

    return new QuotaCheckResult(details.length() > 0 ? Result.INSUFFICIENT_QUOTA : Result.SUFFICIENT_QUOTA,
            Optional.of(details.toString()));
}

From source file:com.facebook.buck.android.ApkGenruleBuilder.java

public ApkGenruleBuilder setCmdExe(String cmdExe) {
    arg.cmdExe = Optional.of(cmdExe);
    return this;
}

From source file:se.sics.ktoolbox.netmngr.ipsolver.IpSolver.java

/**
 * @param prefferedIp/*from  w  w  w. ja va 2 s .c o m*/
 * @param netInterfaces - order of types is important as it will check for ips in order of preferrence
 * @return
 * @throws SocketException 
 */
public static Optional<InetAddress> getIp(Optional<String> prefferedIp,
        List<IpSolve.NetworkInterfacesMask> netInterfaces) throws SocketException {
    Pair<Integer, InetAddress> result = Pair.with(netInterfaces.size(), null);

    Enumeration<NetworkInterface> nis = NetworkInterface.getNetworkInterfaces();
    while (nis.hasMoreElements()) {
        NetworkInterface ni = nis.nextElement();
        if (ni.isVirtual()) {
            continue;
        }

        for (InterfaceAddress ifaceAddr : ni.getInterfaceAddresses()) {
            InetAddress addr = ifaceAddr.getAddress();
            if (addr instanceof Inet6Address) {
                continue; // ignore ipv6 addresses
            }
            if (prefferedIp.isPresent() && addr.getHostAddress().equals(prefferedIp.get())) {
                return Optional.of(addr);
            }
            for (int i = 0; i < result.getValue0(); i++) {
                if (IpHelper.isType(addr, netInterfaces.get(i))) {
                    result = Pair.with(i, addr);
                    break;
                }
            }
        }
    }
    return Optional.fromNullable(result.getValue1());
}

From source file:gobblin.data.management.policy.SelectAfterTimeBasedPolicy.java

public SelectAfterTimeBasedPolicy(Config conf) {
    super(Optional.<Period>absent(), Optional.of(getMaxLookbackTime(conf)));
}

From source file:org.opendaylight.controller.config.facade.xml.mapping.config.ModuleConfig.java

public Element toXml(ObjectName instanceON, Document document, String namespace,
        final EnumResolver enumResolver) {
    final Optional<String> configNs = Optional
            .of(XmlMappingConstants.URN_OPENDAYLIGHT_PARAMS_XML_NS_YANG_CONTROLLER_CONFIG);
    Element root = XmlUtil.createElement(document, XmlMappingConstants.MODULE_KEY, configNs);

    // type belongs to config.yang namespace, but needs to be <type prefix:moduleNS>prefix:moduleName</type>

    Element typeElement = XmlUtil.createTextElementWithNamespacedContent(document, XmlMappingConstants.TYPE_KEY,
            XmlMappingConstants.PREFIX, namespace, moduleName, configNs);

    root.appendChild(typeElement);/*from w w  w  .jav  a2 s .  c  om*/
    // name belongs to config.yang namespace
    String instanceName = ObjectNameUtil.getInstanceName(instanceON);
    Element nameElement = XmlUtil.createTextElement(document, XmlMappingConstants.NAME_KEY, instanceName,
            configNs);

    root.appendChild(nameElement);

    root = instanceConfig.toXml(instanceON, namespace, document, root, enumResolver);

    return root;
}

From source file:org.mayocat.shop.payment.AbstractGatewayFactory.java

/**
 * @return this gateway global (server-level) configuration file
 *
 * @param fileName the name of the file to retrieve
 *//*  www  .  j  a  v  a  2  s  .  co m*/
protected Optional<File> getTenantConfigurationFile(String fileName) {
    if (this.context.getTenant() == null) {
        return Optional.absent();
    }
    return Optional.of(filesSettings.getPermanentDirectory().resolve(TENANTS_DIRECTORY)
            .resolve(this.context.getTenant().getSlug()).resolve(PAYMENTS_DIRECTORY).resolve(this.getId())
            .resolve(fileName).toFile());
}

From source file:net.revelc.code.blazon.types.strings.StringType.java

@Override
protected Optional<String> convert(final String normalized) {
    return Optional.of(normalized);
}