Example usage for java.util.stream IntStream range

List of usage examples for java.util.stream IntStream range

  1. HOME
  2. Java
  3. java
  4. java.util.stream.*
  5. IntStream
  6. range

Introduction

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

Prototype

public static IntStream range(int startInclusive, int endExclusive)

Source Link

Document

Returns a sequential ordered IntStream from startInclusive (inclusive) to endExclusive (exclusive) by an incremental step of 1 .

Usage

From source file:ijfx.service.overlay.io.OverlaySerializer.java

private void savePolytonOverlay(PolygonOverlay overlay, JsonGenerator jg) throws IOException {
    // {//from   w  ww  .  j av a  2 s. c o m
    jg.writeStartObject();
    int numDimension = overlay.numDimensions();

    // "ovl_type":"polygon"
    jg.writeStringField(JsonOverlayToken.OVERLAY_TYPE, JsonOverlayToken.POLYGON_OVERLAY);

    // "points":[

    int vertexCount = overlay.getRegionOfInterest().getVertexCount();

    double[] xpoints = IntStream.range(0, vertexCount)
            .mapToDouble(i -> overlay.getRegionOfInterest().getVertex(i).getDoublePosition(0)).toArray();
    double[] ypoints = IntStream.range(0, vertexCount)
            .mapToDouble(i -> overlay.getRegionOfInterest().getVertex(i).getDoublePosition(1)).toArray();

    writeDoubleArray(jg, "xpoints", xpoints);
    writeDoubleArray(jg, "ypoints", ypoints);
    // }

    ColorRGB fcolor = overlay.getFillColor();
    ColorRGB lcolor = overlay.getLineColor();

    Integer[] fill_color = { fcolor.getRed(), fcolor.getGreen(), fcolor.getBlue() };
    Integer[] line_color = { lcolor.getRed(), lcolor.getGreen(), lcolor.getBlue() };

    double width = overlay.getLineWidth();

    writeNumberArray(jg, JsonOverlayToken.FILL_COLOR, fill_color);
    writeNumberArray(jg, JsonOverlayToken.LINE_COLOR, line_color);

    jg.writeFieldName(JsonOverlayToken.LINE_WIDTH);
    jg.writeNumber(width);

    jg.writeEndObject();

}

From source file:org.apache.hadoop.hbase.client.TestZKAsyncRegistry.java

@Test
public void test() throws InterruptedException, ExecutionException, IOException {
    assertEquals(TEST_UTIL.getHBaseCluster().getClusterStatus().getClusterId(), REGISTRY.getClusterId().get());
    assertEquals(TEST_UTIL.getHBaseCluster().getClusterStatus().getServersSize(),
            REGISTRY.getCurrentNrHRS().get().intValue());
    assertEquals(TEST_UTIL.getHBaseCluster().getMaster().getServerName(), REGISTRY.getMasterAddress().get());
    assertEquals(-1, REGISTRY.getMasterInfoPort().get().intValue());
    waitUntilAllReplicasHavingRegionLocation(TableName.META_TABLE_NAME);
    RegionLocations locs = REGISTRY.getMetaRegionLocation().get();
    assertEquals(3, locs.getRegionLocations().length);
    IntStream.range(0, 3).forEach(i -> {
        HRegionLocation loc = locs.getRegionLocation(i);
        assertNotNull("Replica " + i + " doesn't have location", loc);
        assertTrue(loc.getRegionInfo().getTable().equals(TableName.META_TABLE_NAME));
        assertEquals(i, loc.getRegionInfo().getReplicaId());
    });// w  w  w .  j av a2  s .c om
}

From source file:org.shredzone.cilla.view.ResourceView.java

/**
 * Sets up the internal cache for the resource's etag and content length.
 *
 * @param pack/*from w ww.  j  a  va2 s  .  co  m*/
 *            Resource pack
 * @param name
 *            Resource name
 * @return Map key
 */
private String setup(String pack, String name) throws IOException {
    String key = pack + '/' + name;

    if (!(etagMap.containsKey(key) && sizeMap.containsKey(key))) {
        try (InputStream in = ResourceView.class.getResourceAsStream("/public/" + pack + '/' + name)) {
            MessageDigest md5 = MessageDigest.getInstance("MD5");
            md5.reset();

            int counter = 0;

            byte[] buffer = new byte[4096];
            int length;
            while ((length = in.read(buffer)) >= 0) {
                md5.update(buffer, 0, length);
                counter += length;
            }

            byte[] digest = md5.digest();
            etagMap.put(key, IntStream.range(0, digest.length)
                    .mapToObj(ix -> String.format("%02x", digest[ix] & 0xFF)).collect(joining("", "\"", "\"")));

            sizeMap.put(key, counter);
        } catch (NoSuchAlgorithmException ex) {
            // we expect no exception, since MD5 is a standard digester
            throw new InternalError();
        }
    }

    return key;
}

From source file:io.mashin.rich.spark.TestJavaRichRDD.java

@Test
public void testHttpRDD() {
    String serverIP = HttpMockConfig.serverIP();
    int serverPort = HttpMockConfig.serverPort();

    JavaSparkContext sc = sc("testHttpRDD");
    HttpMock mock = new HttpMock();
    mock.start();//  w  w w .  j  a va2  s .c  om

    int numPages = 4;

    JavaRDD<String> rdd = JavaRichRDD
            .httpRDD(sc, i -> new HttpGet("http://" + serverIP + ":" + serverPort + "/rdd?page=" + (i + 1)),
                    (i, httpResponse) -> {
                        BufferedReader is = new BufferedReader(
                                new InputStreamReader(httpResponse.getEntity().getContent()));
                        String s = is.readLine();
                        is.close();
                        return Arrays.asList(s.split(",")).iterator();
                    }, numPages)
            .cache();

    assertEquals(numPages, rdd.getNumPartitions());
    assertEquals(numPages * HttpMockConfig.perPage(), rdd.count());

    boolean isValid = rdd.mapPartitionsWithIndex((i, iter) -> {
        List<String> list = StreamSupport
                .stream(Spliterators.spliteratorUnknownSize(iter, Spliterator.ORDERED), false)
                .collect(Collectors.toList());
        return IntStream.range(0, list.size()).mapToObj(j -> HttpMockConfig.isValidElement(list.get(j), i, j))
                .iterator();
    }, true).reduce(Boolean::logicalAnd);

    assertTrue(isValid);

    sc.stop();
    mock.stop();
}

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

public int getControlGroupCount() {
    return (int) IntStream.range(0, subjectControls.length).filter(this::isSubjectInControlGroup).count();
}

From source file:org.deeplearning4j.examples.tictactoe.TicTacToeData.java

/**
 * This function called by generatePossibleGames. It is the main function that generates all possible game states.
 * Refer ReadMe.txt for detailed explanation.
 *///from w  w  w.j  a v a2s. com
private void generateStateBasedOnMoveNumber(int moveNumber, List<INDArray> moveSequenceList,
        List<String> values) throws Exception {

    List<INDArray> tempMoveSequenceList = new ArrayList<>();
    tempMoveSequenceList.addAll(moveSequenceList);
    moveSequenceList.clear();

    if (moveNumber == 1) {
        for (int i = 0; i < 9; i++) {
            INDArray temp2 = Nd4j.zeros(1, 9);
            temp2.putScalar(new int[] { 0, i }, 1);
            moveSequenceList.add(temp2);
        }
    } else {
        int lengthOfTempMoveSequenceList = tempMoveSequenceList.size();

        for (INDArray moveArraySequence : tempMoveSequenceList)
            IntStream.range(0, 9).filter(j -> moveArraySequence.getInt(j) == 0).forEach(j -> {
                INDArray temp1 = Nd4j.zeros(1, 9);
                Nd4j.copy(moveArraySequence, temp1);
                temp1.putScalar(new int[] { 0, j }, moveNumber);
                if (moveNumber > 4) {
                    boolean isOddMoveNumber = (moveNumber % 2) != 0;
                    if (checkWin(temp1, isOddMoveNumber)) {
                        values.addAll(generateGameStatesAndRewardToIt(temp1, isOddMoveNumber ? 0 : 1));
                    } else {
                        moveSequenceList.add(temp1);
                    }

                } else {
                    moveSequenceList.add(temp1);
                }
            });
    }
    if (moveNumber == 9) {
        values.addAll(
                moveSequenceList.stream().flatMap(temp1 -> generateGameStatesAndRewardToIt(temp1, 0).stream())
                        .collect(Collectors.toList()));
    }
}

From source file:org.gradoop.flink.model.impl.operators.matching.single.cypher.common.pojos.EmbeddingTestUtils.java

/**
 * Creates a data set of the specified size containing equal embeddings described by the given ids.
 *
 * @param env execution environment/*from   w  ww  . j a v  a 2 s  .  c  o m*/
 * @param size number of embeddings in the generated data set
 * @param ids ids contained in each embedding
 * @return data set of embeddings
 */
public static DataSet<Embedding> createEmbeddings(ExecutionEnvironment env, int size, GradoopId... ids) {
    List<Embedding> embeddings = new ArrayList<>(size);
    IntStream.range(0, size).forEach(i -> embeddings.add(createEmbedding(ids)));
    return env.fromCollection(embeddings);
}

From source file:org.hawkular.metrics.core.service.metrics.BaseMetricsITest.java

protected static void assertNumericBucketsEquals(List<NumericBucketPoint> actual,
        List<NumericBucketPoint> expected) {
    String msg = String.format("%nExpected:%n%s%nActual:%n%s%n", expected, actual);
    assertEquals(actual.size(), expected.size(), msg);
    IntStream.range(0, actual.size()).forEach(i -> {
        NumericBucketPoint actualPoint = actual.get(i);
        NumericBucketPoint expectedPoint = expected.get(i);
        assertNumericBucketEquals(actualPoint, expectedPoint, msg);
    });//from  w  ww.jav a  2 s.  c o m
}

From source file:org.lightjason.examples.pokemon.simulation.agent.pokemon.CDefinition.java

/**
 * ctor/*from w  w  w  .  j  a v a2s  .  c om*/
 */
private CDefinition() {
    Structure l_structure = null;
    try {
        // read structure
        l_structure = (Structure) JAXBContext.newInstance(Structure.class).createUnmarshaller()
                .unmarshal(CCommon.getResourceURL(CCommon.PACKAGEPATH + "data/character.xml"));

    } catch (final JAXBException | MalformedURLException | URISyntaxException l_exception) {
        System.out.println(l_exception);
        LOGGER.warning(l_exception.toString());
    }

    if (l_structure == null)
        m_pokemon = Collections.emptyMap();
    else {

        // read attributes
        final Map<String, CAttribute> l_attribute = Collections.unmodifiableMap(l_structure.getConfiguration()
                .getAttribute().getItem().stream()
                .map(i -> new CAttribute(i.getId(), EAccess.valueOf(i.getAgentaccess().trim().toUpperCase())))
                .collect(Collectors.toMap(CAttribute::name, i -> i)));

        // read atacks
        final Map<String, CAttack> l_attack = Collections.unmodifiableMap(l_structure.getConfiguration()
                .getAttack().getItem().stream().map(i -> new CAttack(i, l_attribute))
                .collect(Collectors.toMap(CAttack::name, i -> i)));

        // read pokemon character
        m_pokemon = Collections.unmodifiableMap(l_structure.getCharacter().getPokemon().stream()
                .collect(Collectors.toMap(i -> i.getId().trim().toLowerCase(), i -> new ImmutablePair<>(

                        i.getExperience(),

                        Collections.unmodifiableList(IntStream.range(0, i.getLevel().size())
                                .mapToObj(j -> new CLevel(i.getId().trim().toLowerCase(), j,

                                        i.getLevel().get(j).getEthnicity().stream().map(Ilevelitem::getId),
                                        i.getLevel().get(j).getEthnicity().stream()
                                                .map(n -> new ImmutableTriple<Number, Number, Number>(
                                                        n.getExpected(), n.getMinimum(), n.getMaximum())),

                                        i.getLevel().get(j).getMotivation().stream().map(Ilevelitem::getId),

                                        i.getLevel().get(j).getMotivation().stream()
                                                .map(n -> new ImmutableTriple<Number, Number, Number>(
                                                        n.getExpected(), n.getMinimum(), n.getMaximum())),

                                        i.getLevel().get(j).getAttribute().stream()
                                                .map(n -> l_attribute.get(n.getId().trim().toLowerCase())),

                                        i.getLevel().get(j).getAttribute().stream()
                                                .map(n -> new ImmutableTriple<Number, Number, Number>(
                                                        n.getExpected(), n.getMinimum(), n.getMaximum())),

                                        i.getLevel().get(j).getAttack().stream()
                                                .map(n -> l_attack.get(n.getId().trim().toLowerCase()))

                                )).collect(Collectors.toList())))

        )));

    }
}

From source file:com.github.lukaszbudnik.dqueue.QueueClientPerformanceTest.java

@Test
public void doItNoFilters() throws ExecutionException, InterruptedException {

    byte[] data = new byte[2045];
    Random r = new Random();
    r.nextBytes(data);//w w w. j  av a2 s  . co m
    ByteBuffer buffer = ByteBuffer.wrap(data);

    IntStream.range(0, NUMBER_OF_ITERATIONS).forEach((i) -> {
        UUID startTime = UUIDs.timeBased();
        Future<UUID> id = queueClient.publish(new Item(startTime, buffer));
        try {
            id.get();
        } catch (Exception e) {
            fail(e.getMessage());
        }
    });

    IntStream.range(0, NUMBER_OF_ITERATIONS).forEach((i) -> {
        Future<Optional<Item>> itemFuture = queueClient.consume();

        Optional<Item> item = null;
        try {
            item = itemFuture.get();
        } catch (Exception e) {
            fail(e.getMessage());
        }

        assertTrue(item.isPresent());
    });

}