Example usage for java.util.stream StreamSupport stream

Introduction

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

Prototype

public static <T> Stream<T> stream(Spliterator<T> spliterator, boolean parallel) 

Source Link

Document

Creates a new sequential or parallel Stream from a Spliterator .

Usage

From source file:org.hawkular.metrics.dropwizard.HawkularReporterTest.java

@Test
public void shouldReportBigIntegerGauge() {
    HawkularReporter reporter = HawkularReporter.builder(registry, "unit-test").useHttpClient(uri -> client)
            .build();//from   ww  w .  j a  v a2s .  c om

    final Gauge<BigInteger> gauge = () -> new BigInteger("2");
    registry.register("gauge.bigi", gauge);
    reporter.report();

    assertThat(client.getMetricsRestCalls()).hasSize(1);
    JSONObject metrics = new JSONObject(client.getMetricsRestCalls().get(0));
    assertThat(metrics.keySet()).containsOnly("gauges");

    JSONArray gaugesJson = metrics.getJSONArray("gauges");
    Map<String, Double> values = StreamSupport.stream(gaugesJson.spliterator(), false)
            .collect(toMap(idFromRoot::extract, dValueFromRoot::extract));
    assertThat(values).containsOnly(entry("gauge.bigi", 2d));
}

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From source file:fr.landel.utils.assertor.utils.AssertorIterable.java

private static <I extends Iterable<T>, T> boolean has(final I iterable1, final Iterable<T> iterable2,
        final boolean all, final boolean not, final EnumAnalysisMode analysisMode) {

    final int size2 = IterableUtils.size(iterable2);

    if (all && !not && size2 > IterableUtils.size(iterable1)) {
        return false;
    }/*from w w w  .  j  a v  a  2 s  .c om*/

    if (EnumAnalysisMode.STANDARD.equals(analysisMode)) {
        if (all && !not) {
            for (final T objectRef : iterable2) {
                if (!AssertorIterable.has(iterable1, objectRef, analysisMode)) {
                    return false;
                }
            }
            return true;
        } else if (!all) { // any and not any
            for (final T objectRef : iterable2) {
                if (AssertorIterable.has(iterable1, objectRef, analysisMode)) {
                    return !not;
                }
            }
            return not;
        } else { // not all
            long found = 0;
            for (final T objectRef : iterable2) {
                if (AssertorIterable.has(iterable1, objectRef, analysisMode)) {
                    ++found;
                }
            }
            return HelperAssertor.isValid(all, not, found, size2);
        }

    } else {
        return HelperAssertor.isValid(
                StreamSupport.stream(iterable2.spliterator(), EnumAnalysisMode.PARALLEL.equals(analysisMode)),
                o -> AssertorIterable.has(iterable1, o, analysisMode), all, not, () -> size2);
    }
}

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From source file:com.ikanow.aleph2.management_db.mongodb.services.IkanowV1SyncService_LibraryJars.java

/** Gets a list of _id,modified from v1 and a list matching _id,modified from V2
 * @param library_mgmt// w ww.  j a  v  a 2  s.  c o m
 * @param share_db
 * @return tuple of id-vs-(date-or-null-if-not-approved) for v1, id-vs-date for v2
 */
protected static CompletableFuture<Tuple2<Map<String, String>, Map<String, Date>>> compareJarsToLibaryBeans_get(
        final IManagementCrudService<SharedLibraryBean> library_mgmt, final ICrudService<JsonNode> share_db) {
    // (could make this more efficient by having a regular "did something happen" query with a slower "get everything and resync)
    // (don't forget to add "modified" to the compound index though)
    CompletableFuture<Cursor<JsonNode>> f_v1_jars = share_db
            .getObjectsBySpec(CrudUtils.allOf().when("type", "binary").rangeIn("title", "/app/aleph2/library/",
                    true, "/app/aleph2/library0", true), Arrays.asList(JsonUtils._ID, "modified"), true);

    return f_v1_jars.<Map<String, String>>thenApply(v1_jars -> {
        return StreamSupport.stream(v1_jars.spliterator(), false).collect(Collectors
                .toMap(j -> safeJsonGet(JsonUtils._ID, j).asText(), j -> safeJsonGet("modified", j).asText()));
    }).<Tuple2<Map<String, String>, Map<String, Date>>>thenCompose(v1_id_datestr_map -> {
        final SingleQueryComponent<SharedLibraryBean> library_query = CrudUtils.allOf(SharedLibraryBean.class)
                .rangeIn(SharedLibraryBean::_id, "v1_", true, "v1a", true);

        return library_mgmt.getObjectsBySpec(library_query, Arrays.asList(JsonUtils._ID, "modified"), true)
                .<Tuple2<Map<String, String>, Map<String, Date>>>thenApply(c -> {
                    final Map<String, Date> v2_id_date_map = StreamSupport.stream(c.spliterator(), false)
                            .collect(Collectors.toMap(b -> b._id().substring(3), //(ie remove the "v1_")
                                    b -> b.modified()));

                    return Tuples._2T(v1_id_datestr_map, v2_id_date_map);
                });
    });
}

---

From source file:com.bouncestorage.swiftproxy.v1.ObjectResource.java

private Map<String, String> getUserMetadata(Request request) {
    return StreamSupport.stream(request.getHeaderNames().spliterator(), false)
            .filter(name -> name.toLowerCase().startsWith(META_HEADER_PREFIX.toLowerCase())).filter(name -> {
                if (name.equalsIgnoreCase(META_HEADER_PREFIX) || RESERVED_METADATA.contains(name)) {
                    throw new BadRequestException();
                }/*from w ww .ja  v a  2  s . co  m*/
                if (name.length() - META_HEADER_PREFIX.length() > InfoResource.CONFIG.swift.max_meta_name_length
                        || request.getHeader(name).length() > InfoResource.CONFIG.swift.max_meta_value_length) {
                    throw new BadRequestException();
                }
                return true;
            }).collect(Collectors.toMap(name -> name.substring(META_HEADER_PREFIX.length()),
                    name -> request.getHeader(name)));
}

---

From source file:com.ikanow.aleph2.search_service.elasticsearch.utils.ElasticsearchIndexUtils.java

/** Get a set of field mappings from the "dynamic_templates" section of a mapping
 * @param index/*  w  ww. j  av  a 2  s  .  c o m*/
 * @return
 */
protected static LinkedHashMap<Either<String, Tuple2<String, String>>, JsonNode> getTemplates(
        final JsonNode index, final JsonNode default_string_mapping,
        final Set<Either<String, Tuple2<String, String>>> already_processed) {
    return Optional.ofNullable(index.get("dynamic_templates")).filter(p -> !p.isNull()).map(p -> {
        if (!p.isArray())
            throw new RuntimeException("dynamic_templates must be object");
        return p;
    }).map(p -> {
        return StreamSupport
                .stream(Spliterators.spliteratorUnknownSize(p.elements(), Spliterator.ORDERED), false)
                .map(pf -> {
                    if (!pf.isObject())
                        throw new RuntimeException("dynamic_templates[*] must be object");
                    return pf;
                })
                .flatMap(pp -> StreamSupport
                        .stream(Spliterators.spliteratorUnknownSize(pp.fields(), Spliterator.ORDERED), false))
                .filter(kv -> !kv.getKey().equals(STRING_OVERRIDE_NAME)
                        || !already_processed.contains(Either.right(Tuples._2T("*", "string")))) // (don't override a specified string)
                .map(kv -> !kv.getKey().equals(STRING_OVERRIDE_NAME) ? kv
                        : Maps.immutableEntry(kv.getKey(), default_string_mapping)) //(special case - overwrite with system default)
                .collect(
                        Collectors.<Map.Entry<String, JsonNode>, Either<String, Tuple2<String, String>>, JsonNode, LinkedHashMap<Either<String, Tuple2<String, String>>, JsonNode>>toMap(
                                kv -> Either.right(buildMatchPair(kv.getValue())), kv -> kv.getValue(),
                                (v1, v2) -> v1, // (should never happen)
                                () -> new LinkedHashMap<Either<String, Tuple2<String, String>>, JsonNode>()));
    }).orElse(new LinkedHashMap<Either<String, Tuple2<String, String>>, JsonNode>());
}

---

From source file:org.jboss.set.aphrodite.issue.trackers.jira.JiraIssueTracker.java

@Override
public boolean isCPReleased(String cpVersion) {
    // For Jira, only accept GA version format x.y.z.GA, e.g. 7.1.2.GA
    // ignore CR version like 7.0.7.CR3
    Matcher matcher = JIRAFIXVERSION.matcher(cpVersion);
    if (!matcher.matches()) {
        return false;
    }/*from   www . ja va  2s. c  o m*/
    Promise<Project> promise = restClient.getProjectClient().getProject("JBEAP");
    Project project = promise.claim();

    Optional<Version> version = StreamSupport.stream(project.getVersions().spliterator(), false)
            .filter(v -> v.getName().equals(cpVersion)).findAny();
    if (version.isPresent()) {
        return version.get().isReleased();
    }

    return false;
}

---

From source file:util.ItUtils.java

public static List<String> extractCeTaskIds(BuildResult buildResult) {
    String logs = buildResult.getLogs();
    return StreamSupport.stream(LINE_SPLITTER.split(logs).spliterator(), false)
            .filter(s -> s.contains("More about the report processing at"))
            .map(s -> s.substring(s.length() - 20, s.length())).collect(Collectors.toList());
}

---

From source file:com.simiacryptus.util.Util.java

/**
 * To stream stream.//from   w w w .j a  v a  2s .  c o  m
 *
 * @param <T>      the type parameter
 * @param iterator the iterator
 * @param size     the size
 * @param parallel the parallel
 * @return the stream
 */
public static <T> Stream<T> toStream(@javax.annotation.Nonnull final Iterator<T> iterator, final int size,
        final boolean parallel) {
    return StreamSupport.stream(Spliterators.spliterator(iterator, size, Spliterator.ORDERED), parallel);
}

---

From source file:com.joyent.manta.client.multipart.JobsMultipartManager.java

@Override
public void complete(final JobsMultipartUpload upload,
        final Iterable<? extends MantaMultipartUploadTuple> parts) throws IOException {
    Validate.notNull(upload, "Multipart upload object must not be null");

    try (Stream<? extends MantaMultipartUploadTuple> stream = StreamSupport.stream(parts.spliterator(),
            false)) {//  w  ww .  jav a  2 s  .  co m
        complete(upload, stream);
    }
}

---

From source file:org.jboss.set.aphrodite.issue.trackers.jira.IssueWrapper.java

private void setIssueReleases(Issue issue, com.atlassian.jira.rest.client.api.domain.Issue jiraIssue) {
    Iterable<Version> versions = jiraIssue.getFixVersions();
    if (versions != null) {
        List<Release> releases = StreamSupport.stream(jiraIssue.getFixVersions().spliterator(), false)
                .map(version -> new Release(version.getName())).collect(Collectors.toList());
        issue.setReleases(releases);/*from   w  w  w .j  a v a  2 s .  com*/
    }
}

---

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