Example usage for java.util Optional orElse

Introduction

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

Prototype

public T orElse(T other) 

Source Link

Document

If a value is present, returns the value, otherwise returns other .

Usage

From source file:org.apache.metron.storm.kafka.flux.SimpleStormKafkaBuilder.java

private static <T> Class<Deserializer<T>> createDeserializer(Optional<String> deserializerClass,
        String defaultDeserializerClass) {
    try {//ww  w.  java 2 s.c  o m
        return (Class<Deserializer<T>>) Class.forName(deserializerClass.orElse(defaultDeserializerClass));
    } catch (Exception e) {
        throw new IllegalStateException("Unable to create a deserializer: "
                + deserializerClass.orElse(defaultDeserializerClass) + ": " + e.getMessage(), e);
    }
}

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From source file:org.opendatakit.briefcase.export.SubmissionParser.java

/**
 * Returns an sorted {@link List} of {@link Path} instances pointing to all the
 * submissions of a form that belong to the given {@link DateRange}.
 * <p>/*from  w w  w  . j  a  v a 2s .co m*/
 * Each file gets briefly parsed to obtain their submission date and use it as
 * the sorting criteria and for filtering.
 */
static List<Path> getListOfSubmissionFiles(FormDefinition formDef, DateRange dateRange,
        SubmissionExportErrorCallback onParsingError) {
    Path instancesDir = formDef.getFormDir().resolve("instances");
    if (!Files.exists(instancesDir) || !Files.isReadable(instancesDir))
        return Collections.emptyList();
    // TODO Migrate this code to Try<Pair<Path, Option<OffsetDate>>> to be able to filter failed parsing attempts
    List<Pair<Path, OffsetDateTime>> paths = new ArrayList<>();
    list(instancesDir).filter(UncheckedFiles::isInstanceDir).forEach(instanceDir -> {
        Path submissionFile = instanceDir.resolve("submission.xml");
        try {
            Optional<OffsetDateTime> submissionDate = readSubmissionDate(submissionFile, onParsingError);
            paths.add(Pair.of(submissionFile,
                    submissionDate.orElse(OffsetDateTime.of(1970, 1, 1, 0, 0, 0, 0, ZoneOffset.UTC))));
        } catch (Throwable t) {
            log.error("Can't read submission date", t);
            EventBus.publish(ExportEvent.failureSubmission(formDef, instanceDir.getFileName().toString(), t));
        }
    });
    return paths.parallelStream()
            // Filter out submissions outside the given date range
            .filter(pair -> dateRange.contains(pair.getRight())).map(Pair::getLeft).collect(toList());
}

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From source file:com.spotify.styx.model.deprecated.WorkflowConfiguration.java

@JsonCreator
public static WorkflowConfiguration create(@JsonProperty("id") String id,
        @JsonProperty("partitioning") Schedule partitioning,
        @JsonProperty("docker_image") Optional<String> dockerImage,
        @JsonProperty("docker_args") Optional<List<String>> dockerArgs,
        @JsonProperty("docker_termination_logging") Optional<Boolean> dockerTerminationLogging,
        @JsonProperty("secret") Optional<Secret> secret, @JsonProperty("resources") List<String> resources) {

    return new AutoValue_WorkflowConfiguration(id, partitioning, dockerImage, dockerArgs,
            dockerTerminationLogging.orElse(false), secret,
            resources == null ? Collections.emptyList() : resources);
}

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From source file:com.spotify.styx.model.WorkflowConfiguration.java

@JsonCreator
public static WorkflowConfiguration create(@JsonProperty("id") String id,
        @JsonProperty("schedule") Schedule schedule, @JsonProperty("offset") Optional<String> offset,
        @JsonProperty("docker_image") Optional<String> dockerImage,
        @JsonProperty("docker_args") Optional<List<String>> dockerArgs,
        @JsonProperty("docker_termination_logging") Optional<Boolean> dockerTerminationLogging,
        @JsonProperty("secret") Optional<Secret> secret, @JsonProperty("resources") List<String> resources) {

    return new AutoValue_WorkflowConfiguration(id, schedule, offset, dockerImage, dockerArgs,
            dockerTerminationLogging.orElse(false), secret,
            resources == null ? Collections.emptyList() : resources);
}

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From source file:com.ikanow.aleph2.data_model.utils.TimeUtils.java

/** Returns a date from a human readable date - can be in the future or past
 * @param human_readable_date - the date expressed in words, eg "next wednesday".. Uses some simple regexes (1h,d, 1month etc), and Natty (try examples http://natty.joestelmach.com/try.jsp#)
 * @param base_date - for relative date, locks the date to this origin
 * @return the machine readable date, or an error
 *///from   ww  w  .j a va  2  s .  c  o m
public static Validation<String, Date> getSchedule(final String human_readable_date, Optional<Date> base_date) {
    try { // just read the first - note can ignore all the error checking here, just fail out using the try/catch
        final Date adjusted_date = base_date.orElse(new Date());
        CalendarSource.setBaseDate(adjusted_date);
        final Parser parser = new Parser();
        final List<DateGroup> l = parser.parse(human_readable_date);
        final DateGroup d = l.get(0);
        if (!d.getText().matches("^.*[a-zA-Z]+.*$")) { // only matches numbers, not allowed - must have missed a prefix
            return Validation.fail(ErrorUtils.get(ErrorUtils.INVALID_DATETIME_FORMAT, human_readable_date));
        }
        final List<Date> l2 = d.getDates();
        return Validation.success(l2.get(0));
    } catch (Exception e) {
        final Pattern numChronoPattern = Pattern.compile("^([\\d]+)(.*)");
        final Matcher m = numChronoPattern.matcher(human_readable_date);
        return m.find()
                ? getTimePeriod(m.group(2)).map(c -> c.getDuration().get(ChronoUnit.SECONDS))
                        .map(l -> new Date(base_date.orElse(new Date()).getTime()
                                + Long.parseLong(m.group(1)) * l * 1000L))
                : getTimePeriod(human_readable_date).map(c -> c.getDuration().get(ChronoUnit.SECONDS))
                        .map(l -> new Date(base_date.orElse(new Date()).getTime() + l * 1000L));
    }
}

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From source file:com.netflix.spinnaker.kork.archaius.ArchaiusConfiguration.java

@Bean
static ArchaiusInitializingBeanPostProcessor archaiusInitializingBeanPostProcessor(
        ConfigurableApplicationContext applicationContext,
        Optional<List<ClasspathPropertySource>> propertyBindings, AbstractPollingScheduler pollingScheduler,
        SpringEnvironmentPolledConfigurationSource polledConfigurationSource) {
    return new ArchaiusInitializingBeanPostProcessor(applicationContext, pollingScheduler,
            polledConfigurationSource, propertyBindings.orElse(Collections.emptyList()));
}

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From source file:com.ikanow.aleph2.example.flume_harvester.utils.FlumeUtils.java

public static String decodeValue(final String val, final String sub_prefix, Optional<String> morphline_cfg_path,
        String sig) {/*w  ww  .j  a va2  s.  c  o m*/
    return val.replace(sub_prefix + "signature", encodeSignature(sig))
            .replace(sub_prefix + "morphline", morphline_cfg_path.orElse(""))
            .replace(sub_prefix + "hostname", HostInformationUtils.getHostname());
}

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From source file:com.homeadvisor.kafdrop.util.JmxUtils.java

public static int getJmxPort(final Environment environment) {
    Optional<Integer> jmxPort = Optional.empty();

    final Properties managementProperties = Agent.getManagementProperties();
    if (managementProperties != null) {
        final String portProperty = managementProperties.getProperty(JMX_PORT_PROPERTY);
        if (portProperty != null) {
            final Optional<Integer> port = Optional.ofNullable(Ints.tryParse(portProperty));
            jmxPort = port;//w w  w  .j  a  v a2 s. c  o  m
        }
    }
    return jmxPort.orElse(0);
}

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From source file:com.ikanow.aleph2.distributed_services.utils.KafkaUtils.java

/** Generates a connection string by reading ZooKeeper
 * @param curator/*w w  w . j  a  v a 2s .  co m*/
 * @param path_override
 * @return
 * @throws Exception 
 */
public static String getBrokerListFromZookeeper(final CuratorFramework curator, Optional<String> path_override,
        final ObjectMapper mapper) throws Exception {
    final String path = path_override.orElse("/brokers/ids");
    final List<String> brokers = curator.getChildren().forPath(path);
    return brokers.stream()
            .map(Lambdas.wrap_u(broker_node -> new String(curator.getData().forPath(path + "/" + broker_node))))
            .flatMap(Lambdas.flatWrap_i(broker_str -> mapper.readTree(broker_str))) // (just discard any badly formatted nodes)
            .flatMap(Lambdas.flatWrap_i(json -> json.get("host").asText() + ":" + json.get("port").asText()))
            .collect(Collectors.joining(","));
}

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From source file:org.apache.metron.parsers.topology.ParserTopologyBuilder.java

/**
 * Create a spout that consumes tuples from a Kafka topic.
 *
 * @param zkQuorum Zookeeper URL/*from  w  ww  .  j  a v a2s . c  om*/
 * @param sensorType              Type of sensor
 * @param kafkaConfigOptional     Configuration options for the kafka spout
 * @param parserConfig            Configuration for the parser
 * @return
 */
private static StormKafkaSpout<Object, Object> createKafkaSpout(String zkQuorum, String sensorType,
        Optional<String> securityProtocol, Optional<Map<String, Object>> kafkaConfigOptional,
        SensorParserConfig parserConfig) {
    Map<String, Object> kafkaSpoutConfigOptions = kafkaConfigOptional.orElse(new HashMap<>());
    String inputTopic = parserConfig.getSensorTopic() != null ? parserConfig.getSensorTopic() : sensorType;
    kafkaSpoutConfigOptions.putIfAbsent(SpoutConfiguration.FIRST_POLL_OFFSET_STRATEGY.key,
            KafkaSpoutConfig.FirstPollOffsetStrategy.UNCOMMITTED_EARLIEST.name());
    kafkaSpoutConfigOptions.putIfAbsent(ConsumerConfig.GROUP_ID_CONFIG, inputTopic + "_parser");
    if (securityProtocol.isPresent()) {
        kafkaSpoutConfigOptions.putIfAbsent("security.protocol",
                KafkaUtils.INSTANCE.normalizeProtocol(securityProtocol.get()));
    }
    return SimpleStormKafkaBuilder.create(inputTopic, zkQuorum,
            Arrays.asList(SimpleStormKafkaBuilder.FieldsConfiguration.VALUE.getFieldName(),
                    SimpleStormKafkaBuilder.FieldsConfiguration.KEY.getFieldName(),
                    SimpleStormKafkaBuilder.FieldsConfiguration.TOPIC.getFieldName()),
            kafkaSpoutConfigOptions);
}

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