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:net.dv8tion.jda.core.entities.impl.JDAImpl.java

@Override
public List<Guild> getMutualGuilds(Collection<User> users) {
    Checks.notNull(users, "users");
    for (User u : users) {
        Checks.notNull(u, "All users");
    }/*from   w  w w.j  av  a2  s.  co m*/
    return Collections.unmodifiableList(getGuilds().stream()
            .filter(guild -> users.stream().allMatch(guild::isMember)).collect(Collectors.toList()));
}

From source file:dk.dma.ais.abnormal.analyzer.analysis.FreeFlowAnalysis.java

private void analyseFreeFlow(Collection<Track> allTracks, Track t0) {
    LOG.debug("Performing free flow analysis of " + t0.getMmsi());

    final float cog0 = t0.getCourseOverGround();
    final Position pc0 = centerOfVessel(t0.getPosition(), t0.getTrueHeading(), t0.getShipDimensionStern(),
            t0.getShipDimensionBow(), t0.getShipDimensionPort(), t0.getShipDimensionStarboard());

    Set<Track> tracksSailingSameDirection = allTracks.stream().filter(t -> t.getMmsi() != t0.getMmsi())
            .filter(t -> !isLastAisTrackingReportTooOld(t, t.getTimeOfLastPositionReport()))
            .filter(t -> absoluteDirectionalDifference(cog0, t.getCourseOverGround()) < dCog)
            .collect(Collectors.toSet());

    if (tracksSailingSameDirection.size() > 0) {
        Ellipse ellipse = createEllipse(pc0, pc0, cog0, t0.getVesselLength(), t0.getVesselBeam(),
                t0.getShipDimensionStern(), t0.getShipDimensionStarboard(), xL, xB, 1);

        LOG.debug("ellipse: " + ellipse);

        List<Track> tracksSailingSameDirectionAndContainedInEllipse = tracksSailingSameDirection.stream()
                .filter(t -> ellipse.contains(centerOfVessel(t.getPosition(), t.getTrueHeading(),
                        t.getShipDimensionStern(), t.getShipDimensionBow(), t.getShipDimensionPort(),
                        t.getShipDimensionStarboard())))
                .collect(Collectors.toList());

        if (tracksSailingSameDirectionAndContainedInEllipse.size() > 0) {
            LOG.debug("There are " + tracksSailingSameDirectionAndContainedInEllipse.size()
                    + " tracks inside ellipse of " + t0.getMmsi() + " " + t0.getShipName());
            LOG.debug(new DateTime(t0.getTimeOfLastPositionReport()) + " " + "MMSI " + t0.getMmsi() + " "
                    + t0.getShipName() + " " + t0.getShipType());
            List<FreeFlowData.TrackInsideEllipse> tracksInsideEllipse = Lists.newArrayList();
            for (Track t1 : tracksSailingSameDirectionAndContainedInEllipse) {
                if (!reportedRecently(t0, t1, t0.getTimeOfLastPositionReport())) {
                    final Position pc1 = centerOfVessel(t1.getPosition(), t1.getTrueHeading(),
                            t1.getShipDimensionStern(), t1.getShipDimensionBow(), t1.getShipDimensionPort(),
                            t1.getShipDimensionStarboard());
                    try {
                        tracksInsideEllipse.add(new FreeFlowData.TrackInsideEllipse(t1.clone(), pc1));
                        markReported(t0, t1, t0.getTimeOfLastPositionReport());
                    } catch (CloneNotSupportedException e) {
                        LOG.error(e.getMessage(), e);
                    }//from w w w . jav  a 2  s.co m
                }
            }
            if (tracksInsideEllipse.size() > 0) {
                try {
                    writeToCSVFile(new FreeFlowData(t0.clone(), pc0, tracksInsideEllipse));
                } catch (CloneNotSupportedException e) {
                    LOG.error(e.getMessage(), e);
                }
            } else {
                LOG.debug("Nothing new to report.");
            }
        }
    }
}

From source file:com.thinkbiganalytics.feedmgr.nifi.NifiFlowCache.java

/**
 * Add connections to the cache/*from w  w  w.  j a  v  a  2s.com*/
 *
 * @param templateName a template name
 * @param connections  connections to add to the cache
 */
public void updateConnectionMap(String templateName, Collection<ConnectionDTO> connections) {
    Map<String, NifiFlowConnection> connectionIdToConnectionMap = new HashMap<>();
    if (connections != null) {
        connections.stream().forEach(connectionDTO -> {
            NifiFlowConnection nifiFlowConnection = NiFiFlowConnectionConverter
                    .toNiFiFlowConnection(connectionDTO);
            if (nifiFlowConnection != null) {
                connectionIdToConnectionMap.put(nifiFlowConnection.getConnectionIdentifier(),
                        nifiFlowConnection);
            }

        });
    }
    this.connectionIdToConnectionMap.putAll(toConnectionIdMap(connectionIdToConnectionMap.values()));
}

From source file:com.thinkbiganalytics.feedmgr.nifi.cache.NifiFlowCacheImpl.java

private Map<String, NifiFlowProcessor> toProcessorIdMap(Collection<NifiFlowProcessor> processors) {
    return processors.stream().collect(Collectors.toMap(NifiFlowProcessor::getId, Function.identity()));
}

From source file:com.thinkbiganalytics.feedmgr.nifi.NifiFlowCache.java

private void updateProcessorIdMaps(String processGroupId, Collection<NifiFlowProcessor> processors) {
    Map<String, String> processorIdToProcessGroupId = new HashMap<>();
    Map<String, String> processorIdToProcessorName = new HashMap<>();
    processors.stream().forEach(flowProcessor -> {
        processorIdToProcessGroupId.put(flowProcessor.getId(), processGroupId);
        processorIdToProcessorName.put(flowProcessor.getId(), flowProcessor.getName());
    });//from w  w w  .  j  a v  a 2 s. c o m
    this.processorIdToFeedProcessGroupId.putAll(processorIdToProcessGroupId);
    this.processorIdToProcessorName.putAll(processorIdToProcessorName);

}

From source file:simx.profiler.info.actor.ActorInstanceInfoTopComponent.java

@Override
public void resultChanged(LookupEvent le) {
    Collection<? extends ActorInstance> allSelectedTypes = result.allInstances();
    if (!allSelectedTypes.isEmpty()) {
        allSelectedTypes.stream().forEach((type) -> {
            this.setData(type);
        });//from   w  w w.j a va2  s.  c o  m
    } else {
        System.out.println("No selection");
    }
}

From source file:com.epam.catgenome.manager.vcf.VcfManager.java

private VcfFilterInfo getFiltersInfo(FeatureReader<VariantContext> reader) throws IOException {
    VcfFilterInfo filterInfo = new VcfFilterInfo();

    VCFHeader header = (VCFHeader) reader.getHeader();
    Collection<VCFInfoHeaderLine> headerLines = header.getInfoHeaderLines();
    Map<String, InfoItem> infoItems = headerLines.stream().filter(l -> !isExtendedInfoLine(l.getDescription())) // Exclude ANN from fields,
            .map(InfoItem::new) // we don't need it in the index
            .collect(Collectors.toMap(InfoItem::getName, i -> i));
    filterInfo.setAvailableFilters(/*from  ww w  .  jav  a  2  s  .  c om*/
            header.getFilterLines().stream().map(VCFSimpleHeaderLine::getID).collect(Collectors.toSet()));

    List<String> filtersWhiteList = getFilterWhiteList();
    if (!filtersWhiteList.isEmpty()) {
        infoItems = scourFilterList(infoItems, filtersWhiteList);
    }

    filterInfo.setInfoItemMap(infoItems);

    return filterInfo;
}

From source file:com.thinkbiganalytics.feedmgr.nifi.cache.NifiFlowCacheImpl.java

private Map<String, String> toProcessorIdFeedNameMap(Collection<NifiFlowProcessor> processors,
        String feedName) {//  w  w  w. java  2s.c o m
    return processors.stream().collect(Collectors.toMap(NifiFlowProcessor::getId, name -> feedName));
}

From source file:com.epam.catgenome.manager.vcf.VcfManager.java

/**
 * Loads VCF FILTER and INFO data for a {@code Collection} of VCF files
 * @param vcfFileIds {@code Collection} specifies VCF files of interest
 * @return  VCF FILTER and INFO data/*ww w . j a v a2s. c  o  m*/
 * @throws IOException if an error with file system occurred
 */
public VcfFilterInfo getFiltersInfo(Collection<Long> vcfFileIds) throws IOException {
    VcfFilterInfo filterInfo = new VcfFilterInfo();
    Map<String, InfoItem> infoItems = new HashMap<>();
    Set<String> availableFilters = new HashSet<>();

    for (Long fileId : vcfFileIds) {
        VcfFile vcfFile = vcfFileManager.loadVcfFile(fileId);
        Assert.notNull(vcfFile, getMessage(ERROR_VCF_ID_INVALID, fileId));

        try (FeatureReader<VariantContext> reader = AbstractFeatureReader.getFeatureReader(vcfFile.getPath(),
                new VCFCodec(), false)) {
            VCFHeader header = (VCFHeader) reader.getHeader();
            Collection<VCFInfoHeaderLine> headerLines = header.getInfoHeaderLines();
            infoItems.putAll(headerLines.stream().filter(l -> !isExtendedInfoLine(l.getDescription())) // Exclude ANN from fields,
                    .map(InfoItem::new) // we don't need it in the index
                    .collect(Collectors.toMap(InfoItem::getName, i -> i)));
            availableFilters.addAll(header.getFilterLines().stream().map(VCFSimpleHeaderLine::getID)
                    .collect(Collectors.toList()));
        }

    }

    List<String> filtersWhiteList = getFilterWhiteList();
    if (!filtersWhiteList.isEmpty()) {
        infoItems = scourFilterList(infoItems, filtersWhiteList);
    }

    infoItems.put(FeatureIndexDao.FeatureIndexFields.IS_EXON.getFieldName(),
            new InfoItem(FeatureIndexDao.FeatureIndexFields.IS_EXON.getFieldName(), VCFHeaderLineType.Flag,
                    "Defines if a variation is " + "located in exon region"));
    filterInfo.setInfoItemMap(infoItems);
    filterInfo.setAvailableFilters(availableFilters);

    return filterInfo;
}