Example usage for java.util.stream Stream collect

Introduction

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

Prototype

<R, A> R collect(Collector<? super T, A, R> collector);

Source Link

Document

Performs a mutable reduction operation on the elements of this stream using a Collector .

Usage

From source file:controllers.nwbib.Application.java

/**
 * @param format The format to show the current stars in
 * @param ids Comma-separated IDs to show, of empty string
 * @return A page with all resources starred by the user
 *//*from  ww w.  j a v  a  2  s  .  co  m*/
public static Promise<Result> showStars(String format, String ids) {
    uncacheLastSearchUrl();
    final List<String> starred = starredIds();
    if (ids.isEmpty() && !starred.isEmpty()) {
        return Promise.pure(redirect(
                routes.Application.showStars(format, starred.stream().collect(Collectors.joining(",")))));
    }
    final List<String> starredIds = starred.isEmpty() && ids.trim().isEmpty() ? starred
            : Arrays.asList(ids.split(","));
    String cacheKey = "starsForIds." + starredIds;
    Object cachedJson = Cache.get(cacheKey);
    if (cachedJson != null && cachedJson instanceof List) {
        @SuppressWarnings("unchecked")
        List<JsonNode> json = (List<JsonNode>) cachedJson;
        return Promise.pure(ok(stars.render(starredIds, json, format)));
    }
    Stream<Promise<JsonNode>> promises = starredIds.stream()
            .map(id -> WS.url(String.format("http://lobid.org/resource/%s?format=full", id)).get()
                    .map(response -> response.asJson()));
    return Promise.sequence(promises.collect(Collectors.toList())).map((List<JsonNode> vals) -> {
        uncache(starredIds);
        session("lastSearchUrl", routes.Application.showStars(format, ids).toString());
        Cache.set(session("uuid") + "-lastSearch",
                starredIds.stream().map(s -> "\"" + s + "\"").collect(Collectors.toList()).toString(),
                Application.ONE_DAY);
        Cache.set(cacheKey, vals, ONE_DAY);
        return ok(stars.render(starredIds, vals, format));
    });
}

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From source file:ru.anr.base.BaseParent.java

/**
 * A simpler form for stream collecting/*from w w  w .j av a  2 s . com*/
 * 
 * @param stream
 *            A stream
 * @return A list
 * @param <S>
 *            Type of object
 */
public static <S> List<S> list(Stream<S> stream) {

    return stream.collect(Collectors.toList());
}

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From source file:ru.anr.base.BaseParent.java

/**
 * A simpler form for stream collecting/*from   w w w  . j a  va2  s  . c  o  m*/
 * 
 * @param stream
 *            A stream
 * @return A set
 * @param <S>
 *            Type of object
 */
public static <S> Set<S> set(Stream<S> stream) {

    return stream.collect(Collectors.toSet());
}

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From source file:io.wcm.devops.conga.plugins.aem.tooling.crypto.cli.CryptoKeysTest.java

private void assetFiles(Stream<File> filesStream) {
    List<File> files = filesStream.collect(Collectors.toList());
    assertEquals(2, files.size());/*from   w  ww.j a  v  a2s  .co m*/
    assertTrue(files.get(0).exists());
    assertEquals("master", files.get(0).getName());
    assertTrue(files.get(1).exists());
    assertEquals("hmac", files.get(1).getName());
}

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From source file:org.elasticsearch.xpack.security.authc.saml.SamlRealm.java

public static List<SamlRealm> findSamlRealms(Realms realms, String realmName, String acsUrl) {
    Stream<SamlRealm> stream = realms.stream().filter(r -> r instanceof SamlRealm).map(r -> (SamlRealm) r);
    if (Strings.hasText(realmName)) {
        stream = stream.filter(r -> realmName.equals(r.name()));
    }/*from  ww w .ja va 2s .c o  m*/
    if (Strings.hasText(acsUrl)) {
        stream = stream.filter(r -> acsUrl.equals(r.assertionConsumerServiceURL()));
    }
    return stream.collect(Collectors.toList());
}

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From source file:org.moserp.environment.rest.ValueListController.java

@RequestMapping(method = RequestMethod.GET, value = "/valueLists/{key}/values")
public Resources<Resource<ValueListItem>> getValuesForKey(@PathVariable String key) {
    ValueList valueList = valueListRepository.findByKey(key);
    if (valueList == null) {
        valueList = new ValueList(key);
        valueList = valueListRepository.save(valueList);
    }//from  ww  w. j a v  a 2  s  . c o m
    List<ValueListItem> values = valueList.getValues();

    Stream<Resource<ValueListItem>> resourceStream = values.stream().map(item -> new Resource<>(item));
    List<Resource<ValueListItem>> resources = resourceStream.collect(Collectors.toList());
    return new Resources<>(resources);
}

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From source file:com.devicehive.dao.rdbms.NetworkDaoRdbmsImpl.java

@Override
public List<NetworkVO> findByName(String name) {
    List<Network> result = createNamedQuery(Network.class, "Network.findByName", Optional.of(CacheConfig.get()))
            .setParameter("name", name).getResultList();
    Stream<NetworkVO> objectStream = result.stream().map(Network::convertNetwork);
    return objectStream.collect(Collectors.toList());
}

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From source file:com.carlomicieli.jtrains.infrastructure.mongo.JongoRepositoryTests.java

@Test
public void shouldFindDocuments() {
    Stream<MyObj> resultStream = repo(jongo()).find(myObjs -> myObjs.find("{'value': 2}"));

    List<MyObj> results = resultStream.collect(Collectors.toList());
    assertThat(results).hasSize(1);/*  w  w  w  . j a  v a  2  s. c  om*/
}

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From source file:com.devicehive.dao.rdbms.NetworkDaoRdbmsImpl.java

@Override
public List<NetworkVO> list(String name, String namePattern, String sortField, boolean sortOrderAsc,
        Integer take, Integer skip, Optional<HivePrincipal> principal) {
    CriteriaBuilder cb = criteriaBuilder();
    CriteriaQuery<Network> criteria = cb.createQuery(Network.class);
    Root<Network> from = criteria.from(Network.class);

    Predicate[] nameAndPrincipalPredicates = CriteriaHelper.networkListPredicates(cb, from, ofNullable(name),
            ofNullable(namePattern), principal);
    criteria.where(nameAndPrincipalPredicates);

    CriteriaHelper.order(cb, criteria, from, ofNullable(sortField), sortOrderAsc);

    TypedQuery<Network> query = createQuery(criteria);
    cacheQuery(query, of(CacheConfig.refresh()));
    ofNullable(take).ifPresent(query::setMaxResults);
    ofNullable(skip).ifPresent(query::setFirstResult);
    List<Network> result = query.getResultList();
    Stream<NetworkVO> objectStream = result.stream().map(Network::convertNetwork);
    return objectStream.collect(Collectors.toList());
}

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From source file:org.g_node.mergers.LktMergerJenaTest.java

@Test
public void testPlainMergeAndSave() throws Exception {
    final String useCase = "lkt";
    final Path outputFile = this.testFileFolder.resolve("out.ttl");

    final String[] cliArgs = new String[7];
    cliArgs[0] = useCase;//from w ww  . j a va2 s .co  m
    cliArgs[1] = "-m";
    cliArgs[2] = this.testMainRdfFile.getAbsolutePath();
    cliArgs[3] = "-i";
    cliArgs[4] = this.testMergeRdfFile.getAbsolutePath();
    cliArgs[5] = "-o";
    cliArgs[6] = outputFile.toString();

    App.main(cliArgs);
    assertThat(Files.exists(outputFile)).isTrue();

    final Stream<String> fileStream = Files.lines(outputFile);
    final List<String> readFile = fileStream.collect(Collectors.toList());
    assertThat(readFile.size()).isEqualTo(5);
    fileStream.close();
}

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