Example usage for java.util Optional of

Introduction

In this page you can find the example usage for java.util Optional of.

Prototype

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

Source Link

Document

Returns an Optional describing the given non- null value.

Usage

From source file:com.uber.hoodie.common.util.TestCompactionUtils.java

@Test
public void testBuildFromFileSlice() {
    // Empty File-Slice with no data and log files
    FileSlice emptyFileSlice = new FileSlice("000", "empty1");
    HoodieCompactionOperation op = CompactionUtils.buildFromFileSlice(DEFAULT_PARTITION_PATHS[0],
            emptyFileSlice, Optional.of(metricsCaptureFn));
    testFileSliceCompactionOpEquality(emptyFileSlice, op, DEFAULT_PARTITION_PATHS[0]);

    // File Slice with data-file but no log files
    FileSlice noLogFileSlice = new FileSlice("000", "noLog1");
    noLogFileSlice.setDataFile(new TestHoodieDataFile("/tmp/noLog.parquet"));
    op = CompactionUtils.buildFromFileSlice(DEFAULT_PARTITION_PATHS[0], noLogFileSlice,
            Optional.of(metricsCaptureFn));
    testFileSliceCompactionOpEquality(noLogFileSlice, op, DEFAULT_PARTITION_PATHS[0]);

    //File Slice with no data-file but log files present
    FileSlice noDataFileSlice = new FileSlice("000", "noData1");
    noDataFileSlice/*from  w w  w.  j  av a  2 s.com*/
            .addLogFile(new HoodieLogFile(new Path(FSUtils.makeLogFileName("noData1", ".log", "000", 1))));
    noDataFileSlice
            .addLogFile(new HoodieLogFile(new Path(FSUtils.makeLogFileName("noData1", ".log", "000", 2))));
    op = CompactionUtils.buildFromFileSlice(DEFAULT_PARTITION_PATHS[0], noDataFileSlice,
            Optional.of(metricsCaptureFn));
    testFileSliceCompactionOpEquality(noDataFileSlice, op, DEFAULT_PARTITION_PATHS[0]);

    //File Slice with data-file and log files present
    FileSlice fileSlice = new FileSlice("000", "noData1");
    fileSlice.setDataFile(new TestHoodieDataFile("/tmp/noLog.parquet"));
    fileSlice.addLogFile(new HoodieLogFile(new Path(FSUtils.makeLogFileName("noData1", ".log", "000", 1))));
    fileSlice.addLogFile(new HoodieLogFile(new Path(FSUtils.makeLogFileName("noData1", ".log", "000", 2))));
    op = CompactionUtils.buildFromFileSlice(DEFAULT_PARTITION_PATHS[0], fileSlice,
            Optional.of(metricsCaptureFn));
    testFileSliceCompactionOpEquality(fileSlice, op, DEFAULT_PARTITION_PATHS[0]);
}

From source file:enmasse.controller.api.v3.amqp.AmqpFlavorsApiTest.java

@Test(expected = IllegalArgumentException.class)
public void testGetUnknown() throws IOException {
    doRequest("GET", "", Optional.of("unknown"));
}

From source file:org.lendingclub.mercator.aws.VPCScanner.java

@Override
public Optional<String> computeArn(JsonNode n) {

    String region = n.get(AWSScanner.AWS_REGION_ATTRIBUTE).asText();

    return Optional.of(String.format("arn:aws:ec2:%s:%s:vpc/%s", region,
            n.get(AccountScanner.ACCOUNT_ATTRIBUTE).asText(), n.get("aws_vpcId").asText()));
}

From source file:org.lendingclub.mercator.aws.NetworkInterfaceScanner.java

@Override
public Optional<String> computeArn(JsonNode n) {
    return Optional.of(createEc2Arn("network-interface", n.path("aws_networkInterfaceId").asText()));
}

From source file:org.openmhealth.shim.googlefit.mapper.GoogleFitPhysicalActivityDataPointMapper.java

/**
 * Maps a JSON response node from the Google Fit API to a {@link PhysicalActivity} measure.
 *
 * @param listNode an individual datapoint from the array in the Google Fit response
 * @return a {@link DataPoint} object containing a {@link PhysicalActivity} measure with the appropriate values from
 * the JSON node parameter, wrapped as an {@link Optional}
 *///from   ww w . j a v  a2 s.co  m
@Override
protected Optional<DataPoint<PhysicalActivity>> asDataPoint(JsonNode listNode) {

    JsonNode listValueNode = asRequiredNode(listNode, "value");
    long activityTypeId = asRequiredLong(listValueNode.get(0), "intVal");

    // This means that the activity was actually sleep, which should be captured using sleep duration, or
    // stationary, which should not be captured as it is the absence of activity
    if (sleepActivityTypes.contains((int) activityTypeId)
            || stationaryActivityTypes.contains((int) activityTypeId)) {

        return Optional.empty();
    }

    String activityName = googleFitDataTypes.get((int) activityTypeId);
    PhysicalActivity.Builder physicalActivityBuilder = new PhysicalActivity.Builder(activityName);
    setEffectiveTimeFrameIfPresent(physicalActivityBuilder, listNode);
    PhysicalActivity physicalActivity = physicalActivityBuilder.build();
    Optional<String> originSourceId = asOptionalString(listNode, "originDataSourceId");
    return Optional.of(newDataPoint(physicalActivity, originSourceId.orElse(null)));

}

From source file:com.formkiq.core.service.propertystore.PropertyStoreDatabase.java

@Override
public Optional<Certificate> retrieveCertificate() throws CertificateException {

    Optional<Certificate> result = Optional.empty();
    String certstring = this.propertyService.getProperty(null, CERTIFICATE_KEY);

    if (!isEmpty(certstring)) {

        CertificateFactory cf = CertificateFactory.getInstance("X.509");
        result = Optional.of(cf.generateCertificate(new ByteArrayInputStream(Strings.getBytes(certstring))));
    }// w  w  w  .  j  a  va  2  s.  c o  m

    return result;
}

From source file:com.ikanow.aleph2.storm.samples.topology.JavaScriptTopology2.java

@Override
public Tuple2<Object, Map<String, String>> getTopologyAndConfiguration(DataBucketBean bucket,
        IEnrichmentModuleContext context) {
    TopologyBuilder builder = new TopologyBuilder();

    String contextSignature = context.getEnrichmentContextSignature(Optional.of(bucket), Optional.empty());

    builder.setSpout("timer", new TimerSpout(3000L));
    JavaScriptProviderBean providerBean = BeanTemplateUtils
            .from(bucket.streaming_enrichment_topology().config(), JavaScriptProviderBean.class).get();
    if (providerBean == null) {
        providerBean = new JavaScriptProviderBean();
    }//w  ww. j  a  v a  2 s.c  om
    if (null == providerBean.getGlobalScript()) {
        providerBean.setGlobalScript(
                new PropertyBasedScriptProvider("/com/ikanow/aleph2/storm/samples/script/js/scripts.properties")
                        .getGlobalScript());
    }
    BeanBasedScriptProvider mapperScriptProvider = new BeanBasedScriptProvider(providerBean);
    BeanBasedScriptProvider folderScriptProvider = new BeanBasedScriptProvider(providerBean);

    final Collection<Tuple2<BaseRichSpout, String>> entry_points = context
            .getTopologyEntryPoints(BaseRichSpout.class, Optional.of(bucket));
    entry_points.forEach(spout_name -> builder.setSpout(spout_name._2(), spout_name._1()));
    entry_points.stream().reduce(
            builder.setBolt("mapperBolt", new JavaScriptMapperBolt(contextSignature, mapperScriptProvider)),
            (acc, v) -> acc.shuffleGrouping(v._2()), (acc1, acc2) -> acc1 // (not possible in practice)
    );
    builder.setBolt("folderBolt", new JavaScriptFolderBolt(contextSignature, folderScriptProvider))
            .shuffleGrouping("mapperBolt").shuffleGrouping("timer");
    builder.setBolt("out", context.getTopologyStorageEndpoint(BaseRichBolt.class, Optional.of(bucket)))
            .localOrShuffleGrouping("folderBolt");
    return new Tuple2<Object, Map<String, String>>(builder.createTopology(), new HashMap<String, String>());
}

From source file:io.syndesis.model.integration.Integration.java

@JsonIgnore
default Optional<IntegrationStatus> getStatus() {
    Optional<IntegrationRevision> deployedRevision = getDeployedRevision();

    return Optional.of(new IntegrationStatus.Builder()
            .currentState(//  www.ja va 2  s . c  o m
                    deployedRevision.map(r -> r.getCurrentState()).orElse(IntegrationRevisionState.Pending))
            .build());
}

From source file:com.teradata.tempto.fulfillment.table.hive.HiveTableDefinition.java

public static HiveTableDefinition hiveTableDefinition(TableHandle handle, String createTableDDLTemplate,
        HiveDataSource dataSource) {/*from w  ww.j  a  v a 2s  .co m*/
    return new HiveTableDefinition(handle, createTableDDLTemplate, Optional.of(dataSource), Optional.empty());
}

From source file:org.lendingclub.mercator.aws.KinesisScanner.java

@Override
public Optional<Double> getDefaultRateLimitPerSecond() {
    // kinesis describe operations are heavily rate limited on the AWS side
    return Optional.of(1d);
}