Example usage for java.util ArrayList stream

Introduction

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

Prototype

default Stream<E> stream()

Source Link

Document

Returns a sequential Stream with this collection as its source.

Usage

From source file:com.intel.daal.spark.rdd.DistributedNumericTable.java

/**
 * Generator method that transforms a JavaRDD<Vector> into a DistributedNumericTable, 
 * keeping the original partitioning.// w  w w .j  a v  a 2  s  .  c  o m
 * @param vecrdd - A JavaRDD<Vector> object.
 * @param maxRowsPerTable - Max number of rows in eachNumericTable. If this is non-positive
 * then all rows in a partition are transformed into a single NumericTable. 
 * @return A DistributedNumericTable backed by HomogenNumericTables.
 */
public static DistributedNumericTable fromJavaVectorRDD(final JavaRDD<Vector> vecrdd,
        final int maxRowsPerTable) {
    Vector first = vecrdd.first();
    int ncols = first.size();
    JavaPairRDD<Vector, Long> vecrddWithIds = vecrdd.zipWithIndex();

    JavaRDD<NumericTableWithIndex> jntrdd = vecrddWithIds
            .mapPartitions(new FlatMapFunction<Iterator<Tuple2<Vector, Long>>, NumericTableWithIndex>() {
                public List<NumericTableWithIndex> call(Iterator<Tuple2<Vector, Long>> it) {
                    DaalContext context = new DaalContext();
                    ArrayList<NumericTableWithIndex> tables = new ArrayList<NumericTableWithIndex>();
                    int cursize = 0;
                    int nrows = 0;
                    ArrayList<Double> data = new ArrayList<>();
                    while (it.hasNext()) {
                        Tuple2<Vector, Long> tup = it.next();

                        double[] row = tup._1().toArray();
                        for (double r : row) {
                            data.add(r);
                        }

                        cursize += row.length;
                        nrows++;
                        if (nrows == maxRowsPerTable || !it.hasNext()) {
                            NumericTableWithIndex part = new NumericTableWithIndex(tup._2() - nrows + 1,
                                    new HomogenNumericTable(context,
                                            data.stream().mapToDouble(i -> i).toArray(), cursize / nrows,
                                            nrows));
                            tables.add(part);
                            cursize = 0;
                            nrows = 0;
                        }
                    }
                    return tables;
                }
            }, true);

    return new DistributedNumericTable(jntrdd, vecrdd.count(), ncols);
}

From source file:com.gabrielluz.megasenaanalyzer.MegaSenaAnalyzer.java

public Integer[] getTimesNumbersPicked(int ultimosSorteios) {
    Integer[] counterArray = new Integer[60];
    int temp = (this._pickedNumbers.size() - ultimosSorteios);
    for (int i = 0; i < counterArray.length; i++) {
        counterArray[i] = 0;/* w w w. ja va  2  s. c  o  m*/
    }

    for (int i = temp; i < this._pickedNumbers.size(); i++) {
        ArrayList<Integer> intArray2 = this._pickedNumbers.get(i);
        intArray2.stream().forEach((Integer j) -> {
            counterArray[j - 1]++;
        });
    }
    return counterArray;
}

From source file:io.paradoxical.francois.ServiceApplication.java

@Override
public void run(ServiceConfiguration config, final Environment env) throws Exception {

    ArrayList<BiConsumer<ServiceConfiguration, Environment>> run = new ArrayList<>();

    run.add(this::configureJson);

    run.add(this::configureLogging);

    run.stream().forEach(configFunction -> configFunction.accept(config, env));
}

From source file:org.nirvana.ServiceApplication.java

@Override
public void run(ServiceConfiguration config, final Environment env) throws Exception {

    ArrayList<BiConsumer<ServiceConfiguration, Environment>> run = new ArrayList<>();

    run.add(this::configureJson);

    run.add(this::configureLogging);

    run.add(this::configureFilters);

    run.stream().forEach(configFunction -> configFunction.accept(config, env));
}

From source file:se.trixon.almond.dialogs.cron.ElementPanel.java

protected void initModel(ArrayList<String> arrayList) {
    arrayList.stream().forEach((string) -> {
        mListModel.addElement(string);//from  w  w  w .  ja  v a2 s  . c o m
    });

    list.setModel(mListModel);
    spinner.setModel(new SpinnerNumberModel(2, 2, mListModel.getSize() + mOffset - 1, 1));
}

From source file:de.unima.core.persistence.AbstractEntityRepository.java

@Override
public List<T> findAll() {
    return store.readWithConnection(connection -> connection.as(Dataset.class).map(dataset -> {
        final ArrayList<String> graphIds = Lists.newArrayList(dataset.listNames());
        return graphIds.stream().filter(this::isGraphOfEntityInstance)
                .map(graph -> createEntity(graph, dataset)).collect(Collectors.toList());
    })).get().get();// w w w  .j a  va 2 s  .co m
}

From source file:$.ServiceApplication.java

@Override
    public void run(ServiceConfiguration config, final Environment env) throws Exception {

        ArrayList<BiConsumer<ServiceConfiguration, Environment>> run = new ArrayList<>();

        run.add(this::configureJson);

        run.add(this::configureLogging);

        run.add(this::configureFilters);

        run.stream().forEach(configFunction -> configFunction.accept(config, env));
    }// w ww. ja  v a2 s. c om

From source file:io.pravega.controller.server.eventProcessor.ScaleRequestHandler.java

private CompletableFuture<List<Void>> clearMarkers(final String scope, final String stream,
        final ArrayList<Integer> segments, final OperationContext context) {
    return FutureHelpers.allOfWithResults(segments.stream().parallel()
            .map(x -> streamMetadataStore.removeMarker(scope, stream, x, context, executor))
            .collect(Collectors.toList()));
}

From source file:com.wormsim.simulation.Walker.java

/**
 * For serialization - to be replaced?//  ww  w . ja  va  2s  .co m
 *
 * @param rng                The random number generator to use.
 * @param seed               The initial seed number (unused but important for
 *                           recording).
 * @param zoo                The zoo to use.
 * @param fitness            The fitness tracker
 * @param tracked_quantities Quantities tracked in the simulation.
 */
protected Walker(RandomGenerator rng, long seed, AnimalZoo2 zoo, TrackedCalculation fitness,
        ArrayList<TrackedCalculation> tracked_quantities) {
    this.rng = rng;
    this.seed = seed;
    this.zoo = zoo.generate(rng);
    this.fitness = fitness.generate(rng);
    this.tracked_quantities = tracked_quantities.stream().map((v) -> v.generate(rng))
            .collect(Collectors.toCollection(ArrayList::new));
    this.tracked_quantities.add(this.fitness);
}

From source file:com.miserablemind.api.consumer.tradeking.api.impl.response_entities.TKAllWatchListsResponse.java

@JsonSetter("watchlists")
@SuppressWarnings("unchecked")
public void setWatchLists(LinkedHashMap<String, Object> watchListsResponse) {

    ArrayList<String> resultList = new ArrayList<>();

    Object list = watchListsResponse.get("watchlist");

    ArrayList<LinkedHashMap<String, String>> itemList = new ArrayList<>();

    if (list.getClass() == ArrayList.class) {
        //we know from condition this is right
        itemList = (ArrayList) list;
    } else {//from  ww w .j  a va 2  s .com
        itemList.add((LinkedHashMap) watchListsResponse.get("watchlist"));
    }

    resultList.addAll(itemList.stream().map(item -> item.get("id")).collect(Collectors.toList()));

    this.watchLists = new String[resultList.size()];
    this.watchLists = resultList.toArray(this.watchLists);

}