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

List of usage examples for com.google.common.base Optional isPresent

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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.google.devtools.build.lib.rules.proto.ProtoCompileAction.java

/**
 * A convenience method to register an action, if it's present.
 * @param protoCompileActionOptional//w ww.  j  a v  a  2s. co m
 */
public static void registerAction(Optional<ProtoCompileAction> protoCompileActionOptional) {
    if (protoCompileActionOptional.isPresent()) {
        protoCompileActionOptional.get().registerAction();
    }
}

From source file:org.spongepowered.common.service.scheduler.SpongeScheduler.java

/**
 * Check the object is a plugin instance.
 *
 * @param plugin The plugin to check//from w w w . ja va  2 s. c  o m
 * @return The plugin container of the plugin instance
 * @throws NullPointerException If the passed in plugin instance is null
 * @throws IllegalArgumentException If the object is not a plugin instance
 */
static PluginContainer checkPluginInstance(Object plugin) {
    Optional<PluginContainer> optPlugin = Sponge.getGame().getPluginManager()
            .fromInstance(checkNotNull(plugin, "plugin"));
    checkArgument(optPlugin.isPresent(), "Provided object is not a plugin instance");
    return optPlugin.get();
}

From source file:org.onos.yangtools.yang.model.repo.api.SourceIdentifier.java

/**
 * Returns filename for this YANG module as specified in RFC 6020.
 *
 * Returns filename in format/*from   ww  w . j  a v  a2 s .  co m*/
 * <code>moduleName ['@' revision] '.yang'</code>
 *
 * Where Where revision-date is in format YYYY-mm-dd.
 *
 * <p>
 * See
 * http://tools.ietf.org/html/rfc6020#section-5.2
 *
 * @return Filename for this source identifier.
 */
public static final String toYangFileName(final String moduleName, final Optional<String> revision) {
    StringBuilder filename = new StringBuilder(moduleName);
    if (revision.isPresent()) {
        filename.append('@');
        filename.append(revision.get());
    }
    filename.append(".yang");
    return filename.toString();
}

From source file:org.apache.gobblin.source.extractor.extract.kafka.ConfigStoreUtils.java

/**
 * Shortlist topics from config store based on whitelist/blacklist tags and
 * add it to {@param whitelist}/{@param blacklist}
 *
 * If tags are not provided, blacklist and whitelist won't be modified
 *//*from   w w w .  ja  va 2s .  c o m*/
public static void setTopicsFromConfigStore(Properties properties, Set<String> blacklist, Set<String> whitelist,
        final String _blacklistTopicKey, final String _whitelistTopicKey) {
    Optional<String> configStoreUri = getConfigStoreUri(properties);
    if (!configStoreUri.isPresent()) {
        return;
    }
    ConfigClient configClient = ConfigClient.createConfigClient(VersionStabilityPolicy.WEAK_LOCAL_STABILITY);
    Optional<Config> runtimeConfig = ConfigClientUtils.getOptionalRuntimeConfig(properties);

    if (properties.containsKey(GOBBLIN_CONFIG_TAGS_WHITELIST)) {
        Preconditions.checkArgument(properties.containsKey(GOBBLIN_CONFIG_FILTER),
                "Missing required property " + GOBBLIN_CONFIG_FILTER);
        String filterString = properties.getProperty(GOBBLIN_CONFIG_FILTER);
        Path whiteListTagUri = PathUtils.mergePaths(new Path(configStoreUri.get()),
                new Path(properties.getProperty(GOBBLIN_CONFIG_TAGS_WHITELIST)));
        getTopicsURIFromConfigStore(configClient, whiteListTagUri, filterString, runtimeConfig).stream()
                .filter((URI u) -> ConfigUtils.getBoolean(getConfig(configClient, u, runtimeConfig),
                        _whitelistTopicKey, false))
                .forEach(((URI u) -> whitelist.add(getTopicNameFromURI(u))));
    } else if (properties.containsKey(GOBBLIN_CONFIG_TAGS_BLACKLIST)) {
        Preconditions.checkArgument(properties.containsKey(GOBBLIN_CONFIG_FILTER),
                "Missing required property " + GOBBLIN_CONFIG_FILTER);
        String filterString = properties.getProperty(GOBBLIN_CONFIG_FILTER);
        Path blackListTagUri = PathUtils.mergePaths(new Path(configStoreUri.get()),
                new Path(properties.getProperty(GOBBLIN_CONFIG_TAGS_BLACKLIST)));
        getTopicsURIFromConfigStore(configClient, blackListTagUri, filterString, runtimeConfig).stream()
                .filter((URI u) -> ConfigUtils.getBoolean(getConfig(configClient, u, runtimeConfig),
                        _blacklistTopicKey, false))
                .forEach(((URI u) -> blacklist.add(getTopicNameFromURI(u))));
    } else {
        log.warn("None of the blacklist or whitelist tags are provided");
    }
}

From source file:org.opendaylight.genius.utils.cache.DataStoreCache.java

public static <T extends DataObject> Object get(String cacheName, InstanceIdentifier<T> identifier, String key,
        DataBroker broker, boolean isConfig) {
    Object dataObject = getCache(cacheName).get(key);
    if (dataObject == null) {
        Optional<T> datastoreObject = MDSALDataStoreUtils.read(broker,
                isConfig ? LogicalDatastoreType.CONFIGURATION : LogicalDatastoreType.OPERATIONAL, identifier);
        if (datastoreObject.isPresent()) {
            dataObject = datastoreObject.get();
            add(cacheName, key, dataObject);
        }/*from www . j  a va 2 s  .c  om*/
    }
    return dataObject;
}

From source file:com.fourmob.datetimepicker.date.DatePickerDialog.java

public static DatePickerDialog newInstance(final OnDateSetListener onDateSetListener, Optional<Calendar> date,
        final boolean dark) {
    final Calendar notNullDate = date.or(new GregorianCalendar());
    final boolean hasNoDate = !date.isPresent();
    final int year = notNullDate.get(Calendar.YEAR);
    final int month = notNullDate.get(Calendar.MONTH);
    final int day = notNullDate.get(Calendar.DAY_OF_MONTH);
    return newInstance(onDateSetListener, year, month, day, dark, hasNoDate);
}

From source file:com.palantir.atlasdb.keyvalue.cassandra.jmx.CassandraJmxCompactionManagers.java

/**
 * return a empty set if not client can be created
 * @param config/*from   w  w w. j a va2s  . co m*/
 * @return
 */
public static Set<CassandraJmxCompactionClient> createCompactionClients(CassandraKeyValueServiceConfig config) {
    if (!config.jmx().isPresent()) {
        return Collections.emptySet();
    }

    CassandraJmxCompactionConfig jmxConfig = config.jmx().get();
    // need to set the property before creating the JMX compaction client
    setJmxSslProperty(jmxConfig);

    Set<CassandraJmxCompactionClient> clients = Sets.newHashSet();
    Set<String> thriftEndPoints = config.servers();
    Preconditions.checkState(!thriftEndPoints.isEmpty(), "address_list should not be empty.");

    // jmxEndPoints are using different ports specified in address_list
    int jmxPort = jmxConfig.port();
    for (String endPointHost : thriftEndPoints) {
        Optional<CassandraJmxCompactionClient> client = new CassandraJmxCompactionClient.Builder(endPointHost,
                jmxPort).username(jmxConfig.username()).password(jmxConfig.password()).build();
        if (client.isPresent()) {
            clients.add(client.get());
        }
    }

    return clients;
}

From source file:org.sonar.server.computation.task.projectanalysis.qualitymodel.NewQualityModelMeasuresVisitor.java

private static long getLongValue(Optional<Measure> measure, Period period) {
    if (!measure.isPresent()) {
        return 0L;
    }//from w w  w. j  a va2s  .com
    return getLongValue(measure.get(), period);
}

From source file:org.opendaylight.yangtools.sal.binding.generator.impl.BindingSchemaContextUtils.java

private static DataNodeContainer findInCases(final ChoiceSchemaNode choiceNode, final QName targetQName) {
    for (ChoiceCaseNode caze : choiceNode.getCases()) {
        Optional<DataNodeContainer> potential = findDataNodeContainer(caze, targetQName);
        if (potential.isPresent()) {
            return potential.get();
        }//www  .jav a  2 s. c om
    }
    return null;
}

From source file:org.opendaylight.vtn.manager.it.util.inventory.InventoryUtils.java

/**
 * Find a VTN port that meets the specified condition.
 *
 * @param rtx   A read-only MD-SAL datastore transaction.
 * @param nid   The node identifier string.
 * @param pid   A string representation of the port ID.
 * @param name  The name of the port./* ww w. ja va  2 s  .  c  om*/
 * @return  A {@link VtnPort} instance if found.
 *          {@code null} otherwise.
 */
public static VtnPort findPort(ReadTransaction rtx, String nid, String pid, String name) {
    Optional<VtnNode> opt = DataStoreUtils.read(rtx, getVtnNodeIdentifier(nid));
    VtnPort found = null;
    if (opt.isPresent()) {
        List<VtnPort> ports = opt.get().getVtnPort();
        if (ports != null) {
            for (VtnPort vport : ports) {
                if (match(vport, nid, pid, name)) {
                    found = vport;
                    break;
                }
            }
        }
    }

    return found;
}