Example usage for java.util.stream LongStream of

Introduction

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

Prototype

public static LongStream of(long... values) 

Source Link

Document

Returns a sequential ordered stream whose elements are the specified values.

Usage

From source file:Main.java

public static void main(String[] args) {
    LongStream b = LongStream.of(1L);

    b.forEach(System.out::println);
}

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From source file:Main.java

public static void main(String[] args) {
    List<String> stringList = Arrays.asList("1.2", "2.2", "3", "4", "5");

    stringList.stream().flatMapToLong(n -> LongStream.of(Long.parseLong(n))).forEach(System.out::println);
}

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From source file:com.google.pubsub.flic.common.LatencyDistribution.java

private static int getNthPercentileIndex(long[] bucketValues, double percentile) {
    Preconditions.checkArgument(percentile > 0.0);
    Preconditions.checkArgument(percentile < 100.0);
    long total = LongStream.of(bucketValues).sum();
    if (total == 0) {
        return 0;
    }/*from  ww  w .  j  a  v  a 2s .  c  om*/
    long count = (long) (total * percentile / 100.0);
    for (int i = LATENCY_BUCKETS.length - 1; i > 0; i--) {
        total -= bucketValues[i];
        if (total < count) {
            return i;
        }
    }
    return -1;
}

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From source file:io.woolford.processors.nifibenford.BenfordsLaw.java

@Override
public void onTrigger(final ProcessContext context, final ProcessSession session) throws ProcessException {
    FlowFile flowFile = session.get();/*  ww  w.ja v  a 2s  .  co  m*/
    if (flowFile == null) {
        return;
    }

    InputStream inputStream = session.read(flowFile);
    String input = new BufferedReader(new InputStreamReader(inputStream)).lines()
            .collect(Collectors.joining("\n"));

    // TODO: since the values returned by Benford's array don't ever change, these could be hard-coded rather than calling a function each time.
    double[] benfordsArray = getBenfordsArray();
    long[] firstDigitArray = getFirstDigitArray(input);

    long sampleSize = LongStream.of(firstDigitArray).sum();

    ChiSquareTest chiSquareTest = new ChiSquareTest();
    Boolean suspect = chiSquareTest.chiSquareTest(benfordsArray, firstDigitArray,
            context.getProperty(ALPHA).asDouble());

    //TODO: don't perform the chi-squared test if the sample is too small
    if (sampleSize < context.getProperty(MIN_SAMPLE).asLong()) {
        session.transfer(flowFile, INSUFFICIENT_SAMPLE);
    } else if (suspect) {
        session.transfer(flowFile, NON_CONFORMING);
    } else {
        session.transfer(flowFile, CONFORMING);
    }

}

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