Example usage for java.util List stream

Introduction

In this page you can find the example usage for java.util List stream.

Prototype

default Stream<E> stream()

Source Link

Document

Returns a sequential Stream with this collection as its source.

Usage

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

/** Gets a merged set of configs
 * @param config_dir/*from  w  w  w.ja  v a  2s.c  om*/
 * @param default_config
 * @return
 */
public static Config getMergedConfig(final List<Config> config_files, final Config default_config) {
    final Config config = config_files.stream().reduce((cfg1, cfg2) -> cfg2.withFallback(cfg1))
            .map(cfg -> cfg.withFallback(default_config)).orElseGet(() -> default_config);

    return config;
}

From source file:de.metas.ui.web.view.json.JSONDocumentViewOrderBy.java

public static List<JSONDocumentViewOrderBy> ofList(final List<DocumentQueryOrderBy> orderBys) {
    if (orderBys == null || orderBys.isEmpty()) {
        return ImmutableList.of();
    }//from  w  w  w. j a  va 2  s  .c  om

    return orderBys.stream().map(orderBy -> of(orderBy)).filter(jsonOrderBy -> jsonOrderBy != null)
            .collect(GuavaCollectors.toImmutableList());
}

From source file:BluemixUtils.java

private static int findMinSize(List<ClassifierUnit> all) {
    //        return 270;
    return all.stream().map((ClassifierUnit s) -> s.getFolderWithImages())
            .map((String s) -> new File(s).listFiles(filter).length).min(Integer::compare).get();
}

From source file:com.thinkbiganalytics.metadata.rest.jobrepo.nifi.NifiFeedProcessorStatsTransform.java

/**
 * Converts the domain model objects to the rest model equivalent
 *
 * @param domains A list of domain objects
 * @return a list of converted objects, or null if the provided list was empty
 *//*from   www  .j  ava 2  s.c  o m*/
public static List<NifiFeedProcessorStats> toModel(
        List<? extends com.thinkbiganalytics.metadata.api.jobrepo.nifi.NifiFeedProcessorStats> domains) {
    if (domains != null && !domains.isEmpty()) {
        return domains.stream().map(domain -> toModel(domain)).collect(Collectors.toList());
    }
    return null;
}

From source file:com.thinkbiganalytics.metadata.rest.jobrepo.nifi.NifiFeedProcessorStatsTransform.java

/**
 * Converts the domain model objects to the rest model equivalent
 *
 * @param domains A list of domain objects
 * @return a list of converted objects, or null if the provided list was empty
 *//* w  w  w.  ja v a  2  s  .  co  m*/
public static List<NifiFeedProcessorStatsErrors> toErrorsModel(
        List<? extends com.thinkbiganalytics.metadata.api.jobrepo.nifi.NifiFeedProcessorErrors> domains) {
    if (domains != null && !domains.isEmpty()) {
        return domains.stream().map(domain -> toErrorsModel(domain)).collect(Collectors.toList());
    }
    return null;
}

From source file:info.archinnov.achilles.internals.parser.UDFParser.java

public static void validateNoDuplicateDeclaration(AptUtils aptUtils, List<UDFSignature> signatures) {
    // Validate not declared many time using full equality
    for (UDFSignature signature : signatures) {
        signatures.stream().filter(signature::equals) //Equality by comparing name, keyspace, return types and param types
                .filter(x -> x != signature) //Identity comparison, exclude self
                .forEach(x -> aptUtils.printError(
                        "Functions '%s' and '%s' have same signature. Duplicate function declaration is not allowed",
                        signature, x));/*from w  w  w  . j  a  v  a 2  s .c o  m*/
    }
}

From source file:com.khartec.waltz.service.capability_usage.CapabilityUsageService.java

private static CapabilityUsage classifyAppCapabilities(Node<Capability, Long> capNode,
        List<ApplicationCapability> appCapabilities, List<CapabilityRating> ratings) {
    return ImmutableCapabilityUsage.builder().capability(capNode.getData())
            .usages(appCapabilities.stream().filter(ac -> ac.capabilityId() == capNode.getId())
                    .collect(Collectors.toList()))
            .ratings(ratings.stream().filter(r -> r.capabilityId() == capNode.getId())
                    .collect(Collectors.toList()))
            .children(capNode.getChildren().stream()
                    .map(n -> classifyAppCapabilities(n, appCapabilities, ratings))
                    .collect(Collectors.toList()))
            .build();/*  w w  w  .jav  a 2  s  .c o m*/

}

From source file:com.github.horrorho.inflatabledonkey.cloud.clients.DeviceClient.java

public static List<Device> device(HttpClient httpClient, CloudKitty kitty, Collection<String> deviceID)
        throws IOException {

    List<CloudKit.RecordRetrieveResponse> responses = kitty.recordRetrieveRequest(httpClient, "mbksync",
            deviceID);//from w ww  .  j av a  2  s. c  o  m
    logger.debug("-- device() - responses: {}", responses);

    return responses.stream().map(CloudKit.RecordRetrieveResponse::getRecord).map(Devices::from)
            .collect(Collectors.toList());
}

From source file:com.khartec.waltz.jobs.sample.BusinessRegionProductHierarchyGenerator.java

private static Set<String> readRegions() throws IOException {
    List<String> lines = readLines(OrgUnitGenerator.class.getResourceAsStream("/regions.csv"));
    Map<String, Map<String, Set<String>>> regionHierarchy = lines.stream().skip(1)
            .map(line -> StringUtils.splitPreserveAllTokens(line, ","))
            .filter(cells -> notEmpty(cells[0]) && notEmpty(cells[6]) && notEmpty(cells[5]))
            .map(cells -> Tuple.tuple(cells[0], cells[6], cells[5]))
            .collect(groupingBy(t -> t.v3, groupingBy(t -> t.v2, mapping(t -> t.v1, toSet()))));

    return regionHierarchy.keySet();
}

From source file:com.epam.dlab.automation.helper.WaitForStatus.java

private static String getNotebookStatus(JsonPath json, String notebookName) {
    List<Map<String, String>> notebooks = json.getList(EXPLORATORY_PATH);
    return notebooks.stream().filter(exploratoryNamePredicate(notebookName)).map(e -> e.get("status")).findAny()
            .orElse(StringUtils.EMPTY);/*from   w ww .  jav  a2s .  co m*/
}