Example usage for java.util Collection stream

Introduction

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

Prototype

default Stream<E> stream() 

Source Link

Document

Returns a sequential Stream with this collection as its source.

Usage

From source file:io.logspace.hq.core.solr.event.SolrEventService.java

@Override
public void store(Collection<? extends Event> events, String space) {
    if (events == null || events.isEmpty()) {
        return;//from www. j av a  2s  . c  om
    }

    String system = events.stream().findFirst().get().getSystem();
    this.logger.debug("Storing {} event(s) for space '{}' from system {}", events.size(), space, system);

    try {
        Collection<SolrInputDocument> inputDocuments = this.createInputDocuments(events, space);
        this.solrClient.add(inputDocuments);

        this.logger.info("Successfully stored {} event(s) for space '{}' from system {}", events.size(), space,
                system);
    } catch (SolrServerException | IOException e) {
        String message = "Failed to store " + events.size() + " events.";
        this.logger.error(message, e);
        throw EventStoreException.storeFailed(message, e);
    }
}

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From source file:com.adobe.acs.commons.mcp.impl.processes.asset.UrlAssetImport.java

private Optional<FileOrRendition> findOriginalRendition(Collection<FileOrRendition> allFiles,
        FileOrRendition rendition) {//from   w ww .j av a2 s  . c  om
    // Build list of files in the target folder
    List<FileOrRendition> filesInFolder = allFiles.stream()
            .filter(f -> f.getParent().getNodePath().equals(rendition.getParent().getNodePath()))
            .collect(Collectors.toList());

    if (filesInFolder.isEmpty()) {
        LOG.error("Unable to find any other files in directory " + rendition.getParent().getNodePath());
        return Optional.empty();
    } else {
        // Organize files by closest match (better match = smaller levensthein distance)
        String fileName = rendition.getOriginalAssetName() == null || rendition.getOriginalAssetName().isEmpty()
                ? rendition.getName().toLowerCase()
                : rendition.getOriginalAssetName().toLowerCase();
        filesInFolder.sort((a, b) -> compareName(a, b, fileName));

        // Return best match
        return Optional.of(filesInFolder.get(0));
    }
}

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From source file:com.taobao.android.builder.tools.multidex.dex.DexMerger.java

public DexMerger(MultiDexConfig multiDexConfig, Collection<File> fileList) throws IOException {

    this.multiDexConfig = multiDexConfig;
    this.fileList = fileList.stream().sorted(new FileComparator()).collect(Collectors.toList());

    for (File file : fileList) {
        Dex dex = new Dex(file);
        jarDexMap.put(file, dex);/*w  w  w. jav a 2 s.c  o m*/
    }

    dexList = new ArrayList<>(jarDexMap.values());

}

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From source file:edu.washington.gs.skyline.model.quantification.FoldChangeDataSet.java

/**
 * Construct a new FoldChangeDataSet.  The first four collections must all have the same number of elements.
 * The "subjectControls" must have the same number of elements as the number of unique values of "subjects".
 * @param abundances log2 intensity//from   w ww.  ja v  a 2  s  . co  m
 * @param features identifiers of the transition that the abundance was measured for.  Note that Skyline always sums
 *                 the transition intensities before coming in here, the feature values should all be zero.
 * @param runs integers representing which replicate the value came from
 * @param subjects identifiers used for combining biological replicates.
 * @param subjectControls specifies which subject values belong to the control group.
 */
public FoldChangeDataSet(Collection<Double> abundances, Collection<Integer> features, Collection<Integer> runs,
        Collection<Integer> subjects, Collection<Boolean> subjectControls) {
    if (abundances.size() != features.size() || abundances.size() != subjects.size()
            || abundances.size() != runs.size()) {
        throw new IllegalArgumentException("Wrong number of rows");
    }
    this.abundances = abundances.stream().mapToDouble(Double::doubleValue).toArray();
    this.features = features.stream().mapToInt(Integer::intValue).toArray();
    this.runs = runs.stream().mapToInt(Integer::intValue).toArray();
    this.subjects = subjects.stream().mapToInt(Integer::intValue).toArray();
    this.subjectControls = ArrayUtils.toPrimitive(subjectControls.toArray(new Boolean[subjectControls.size()]));
    if (this.abundances.length == 0) {
        featureCount = 0;
        subjectCount = 0;
        runCount = 0;
    } else {
        if (Arrays.stream(this.features).min().getAsInt() < 0 || Arrays.stream(this.runs).min().getAsInt() < 0
                || Arrays.stream(this.subjects).min().getAsInt() < 0) {
            throw new IllegalArgumentException("Cannot be negative");
        }
        featureCount = Arrays.stream(this.features).max().getAsInt() + 1;
        subjectCount = Arrays.stream(this.subjects).max().getAsInt() + 1;
        runCount = Arrays.stream(this.runs).max().getAsInt() + 1;
    }
    if (this.subjectControls.length != subjectCount) {
        throw new IllegalArgumentException("Wrong number of subjects");
    }
}

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From source file:com.hortonworks.streamline.streams.service.ClusterCatalogResource.java

private Response buildClustersGetResponse(Collection<Cluster> clusters, Boolean detail) {
    if (BooleanUtils.isTrue(detail)) {
        List<CatalogResourceUtil.ClusterServicesImportResult> clustersWithServices = clusters.stream()
                .map(c -> CatalogResourceUtil.enrichCluster(c, environmentService))
                .collect(Collectors.toList());
        return WSUtils.respondEntities(clustersWithServices, OK);
    } else {/*from  ww w. ja v a 2  s. c om*/
        return WSUtils.respondEntities(clusters, OK);
    }
}

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From source file:com.thinkbiganalytics.feedmgr.service.feed.FeedModelTransform.java

/**
 * Transforms the specified Metadata feeds to Feed Manager feed summaries.
 *
 * @param domain the Metadata feed/*from  w w  w . j  ava  2 s.c o  m*/
 * @return the Feed Manager feed summaries
 */
@Nonnull
public List<FeedSummary> domainToFeedSummary(@Nonnull final Collection<? extends Feed> domain) {
    return domain.stream().map(this::domainToFeedSummary).filter(feedSummary -> feedSummary != null)
            .collect(Collectors.toList());
}

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From source file:com.example.app.profile.model.location.LocationDAO.java

/**
 * Delete the given Locations from the database
 *
 * @param locations the locations to delete
 *///from  w  ww  .j a  va  2s.  c om
public void deleteLocations(final Collection<? extends Location> locations) {
    doInTransaction(session -> {
        final String hql = "update " + Location.class.getSimpleName() + " location" + " set location."
                + SoftDeleteEntity.SOFT_DELETE_COLUMN_PROP + " = true" + " where location in :locations";

        session.createQuery(hql)
                .setParameterList("locations", locations.stream().map(Location::getId).toArray(Integer[]::new))
                .executeUpdate();
    });
}

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From source file:com.hortonworks.streamline.streams.service.NamespaceCatalogResource.java

private void assertNoTopologyReferringNamespaceIsRunning(Long namespaceId, String asUser) {
    Collection<Topology> topologies = catalogService.listTopologies();
    List<Topology> runningTopologiesInNamespace = topologies.stream()
            .filter(t -> Objects.equals(t.getNamespaceId(), namespaceId)).filter(t -> {
                try {
                    topologyActionsService.getRuntimeTopologyId(t, asUser);
                    return true;
                } catch (TopologyNotAliveException | IOException e) {
                    // if streaming engine is not accessible, we just treat it as not running
                    return false;
                }//from www  .j  av a2  s  .  co m
            }).collect(toList());

    if (!runningTopologiesInNamespace.isEmpty()) {
        throw BadRequestException.message(
                "Trying to modify mapping of streaming engine while Topology is running - namespace id: "
                        + namespaceId);
    }
}

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From source file:com.haulmont.cuba.gui.relatedentities.RelatedEntitiesBean.java

protected List<Object> getParentIds(Collection<? extends Entity> selectedParents) {
    if (selectedParents.isEmpty()) {
        return Collections.emptyList();
    } else {/*from   ww  w .j av  a  2s.co  m*/
        return selectedParents.stream().map(Entity::getId).collect(Collectors.toList());
    }
}

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From source file:ch.sdi.core.impl.data.InputTransformerProperties.java

/**
 * Reads the ignored fields into member myIgnoredFields and returns a collection of all raw field
 * names which are not filtered (sdi.normalize.ignoreField).
 * <p>/* w  ww .  ja v  a  2 s. co  m*/
 * @param aFieldnames
 *        the collected fieldnames
 * @return
 */
private Collection<String> getFilteredRawFieldNames(Collection<String> aFieldnames) {
    String value = myEnv.getProperty(SdiMainProperties.KEY_NORMALIZE_IGNORE_FIELD);

    if (!StringUtils.hasText(value)) {
        myLog.debug("no normalize field filters configured");
        myIgnoredFields = new ArrayList<>();
        return aFieldnames;
    } // if !StringUtils.hasText( value )

    myIgnoredFields = Arrays.asList(value.split(","));

    return aFieldnames.stream().filter(f -> !myIgnoredFields.contains(f))
            .collect(Collectors.toCollection((Supplier<List<String>>) ArrayList::new));
}

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