Example usage for java.util Arrays setAll

Introduction

In this page you can find the example usage for java.util Arrays setAll.

Prototype

public static void setAll(double[] array, IntToDoubleFunction generator) 

Source Link

Document

Set all elements of the specified array, using the provided generator function to compute each element.

Usage

From source file:io.druid.query.aggregation.datasketches.tuple.ArrayOfDoublesSketchToMeansPostAggregator.java

@Override
public double[] compute(final Map<String, Object> combinedAggregators) {
    final ArrayOfDoublesSketch sketch = (ArrayOfDoublesSketch) getField().compute(combinedAggregators);
    final SummaryStatistics[] stats = new SummaryStatistics[sketch.getNumValues()];
    Arrays.setAll(stats, i -> new SummaryStatistics());
    final ArrayOfDoublesSketchIterator it = sketch.iterator();
    while (it.next()) {
        final double[] values = it.getValues();
        for (int i = 0; i < values.length; i++) {
            stats[i].addValue(values[i]);
        }/*w w w .ja va 2 s.  c  o m*/
    }
    final double[] means = new double[sketch.getNumValues()];
    Arrays.setAll(means, i -> stats[i].getMean());
    return means;
}

---

From source file:io.druid.query.aggregation.datasketches.tuple.ArrayOfDoublesSketchToVariancesPostAggregator.java

@Override
public double[] compute(final Map<String, Object> combinedAggregators) {
    final ArrayOfDoublesSketch sketch = (ArrayOfDoublesSketch) getField().compute(combinedAggregators);
    final SummaryStatistics[] stats = new SummaryStatistics[sketch.getNumValues()];
    Arrays.setAll(stats, i -> new SummaryStatistics());
    final ArrayOfDoublesSketchIterator it = sketch.iterator();
    while (it.next()) {
        final double[] values = it.getValues();
        for (int i = 0; i < values.length; i++) {
            stats[i].addValue(values[i]);
        }/*from   w w w .  j  ava  2  s  .c  o m*/
    }
    final double[] variances = new double[sketch.getNumValues()];
    Arrays.setAll(variances, i -> stats[i].getVariance());
    return variances;
}

---

From source file:io.druid.query.aggregation.datasketches.tuple.ArrayOfDoublesSketchTTestPostAggregator.java

private static SummaryStatistics[] getStats(final ArrayOfDoublesSketch sketch) {
    final SummaryStatistics[] stats = new SummaryStatistics[sketch.getNumValues()];
    Arrays.setAll(stats, i -> new SummaryStatistics());
    final ArrayOfDoublesSketchIterator it = sketch.iterator();
    while (it.next()) {
        final double[] values = it.getValues();
        for (int i = 0; i < values.length; i++) {
            stats[i].addValue(values[i]);
        }/*from w  ww.j ava2s .c  o m*/
    }
    return stats;
}

---

From source file:com.github.benmanes.caffeine.cache.Stresser.java

public Stresser() {
    ThreadFactory threadFactory = new ThreadFactoryBuilder().setPriority(Thread.MAX_PRIORITY).setDaemon(true)
            .build();//from  ww w.  j a v  a2 s  .co  m
    Executors.newSingleThreadScheduledExecutor(threadFactory).scheduleAtFixedRate(this::status, STATUS_INTERVAL,
            STATUS_INTERVAL, SECONDS);
    cache = Caffeine.newBuilder().maximumSize(operation.maxEntries).recordStats().build(key -> key);
    local = (BoundedLocalCache<Integer, Integer>) cache.asMap();
    ints = new Integer[TOTAL_KEYS];
    Arrays.setAll(ints, key -> {
        cache.put(key, key);
        return key;
    });
    cache.cleanUp();
    stopwatch = Stopwatch.createStarted();
    status();
}

---

From source file:org.hawkular.rx.commands.hawkular.CreateUrlCommand.java

protected String getDomainSorterUrl(String url) {
    //http://git.io/vRIHB
    try {//from   w w w  . jav a 2s. c  o m
        URL urlInstance = new URL(url);
        String[] levels = urlInstance.getHost().split(".");
        if (levels != null && levels.length > 1) {
            String[] levelsSorted = new String[levels.length];
            //"a.b.redhat.com" will produce "redhat.com.a.b"
            Arrays.setAll(levelsSorted, i -> {
                switch (i) {
                case 0:
                case 1:
                    String level = levels[levels.length - 1 - i];
                    //replace all the www's with a space so that they sort before any other name
                    return "www".equals(level) ? " " : level;
                default:
                    level = levels[i];
                    return "www".equals(level) ? " " : level;
                }
            });
            return StringUtils.join(levelsSorted, ".");
        }
        return url;
    } catch (MalformedURLException e) {
        return url;
    }

}

---

From source file:com.simiacryptus.mindseye.lang.Tensor.java

/**
 * Fill tensor./* w  w w .  j a v  a  2s  . c om*/
 *
 * @param f the f
 * @return the tensor
 */
@Nonnull
public Tensor set(@Nonnull final DoubleSupplier f) {
    Arrays.setAll(getData(), i -> f.getAsDouble());
    return this;
}

---

From source file:org.blockedit.core.world.Section.java

private ArrayList<Byte> getArrayList(byte[] original) {
    Byte[] byteArray = new Byte[original.length];
    Arrays.setAll(byteArray, n -> original[n]);
    return new ArrayList<>(Arrays.asList(byteArray));
}

---

From source file:org.mpetnuch.gauss.linearalgebra.blas3.JBlasLevel3Test.java

private static double[][] generateData(int m, int n) {
    final Random randomStream = new Random((long) m * n);
    final double[][] data = new double[m][];
    Arrays.setAll(data, value -> randomStream.doubles(n).toArray());
    return data;/*from   ww w .  ja  va2 s. co  m*/
}

---