Example usage for java.util.stream IntStream range

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

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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:org.lightjason.agentspeak.common.CPath.java

/**
 * normalize the internal path//from   w w w.  jav a2 s.  c  o  m
 */
private synchronized void normalize() {
    if (m_path.isEmpty())
        return;

    // create path-copy and nomalize (remove dot, double-dot and empty values)
    final List<String> l_dotremove = m_path.stream()
            .filter(i -> (i != null) && (!i.isEmpty()) && (!".".equals(i))).collect(Collectors.toList());
    if (l_dotremove.isEmpty())
        return;

    final String l_last = l_dotremove.get(l_dotremove.size() - 1);
    final List<String> l_backremove = IntStream.range(0, l_dotremove.size() - 1).boxed()
            .filter(i -> !l_dotremove.get(i + 1).equals("..")).map(l_dotremove::get)
            .collect(Collectors.toList());
    if (!"..".equals(l_last))
        l_backremove.add(l_last);

    // clear internal path and add optimized path
    m_path.clear();
    l_backremove.forEach(m_path::add);
}

From source file:io.pravega.controller.store.stream.tables.TableHelper.java

/**
 * Add new segments to the segment table.
 * This method is designed to work with chunked creation. So it takes a
 * toCreate count and newRanges and it picks toCreate entries from the end of newranges.
 *
 * @param startingSegmentNumber starting segment number
 * @param segmentTable          segment table
 * @param newRanges             ranges//from  ww  w .jav  a  2s  .co  m
 * @param timeStamp             timestamp
 * @return
 */
public static byte[] updateSegmentTable(final int startingSegmentNumber, final byte[] segmentTable,
        final List<AbstractMap.SimpleEntry<Double, Double>> newRanges, final long timeStamp) {
    final ByteArrayOutputStream segmentStream = new ByteArrayOutputStream();
    try {
        segmentStream.write(segmentTable);

        IntStream.range(0, newRanges.size()).forEach(x -> {
            try {
                segmentStream.write(new SegmentRecord(startingSegmentNumber + x, timeStamp,
                        newRanges.get(x).getKey(), newRanges.get(x).getValue()).toByteArray());
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        });
    } catch (Exception e) {
        throw new RuntimeException(e);
    }

    return segmentStream.toByteArray();
}

From source file:org.apache.sysml.runtime.matrix.data.SinglePrecisionCudaSupportFunctions.java

@Override
public void hostToDevice(GPUContext gCtx, double[] src, Pointer dest, String instName) {
    LOG.debug("Potential OOM: Allocated additional space in hostToDevice");
    // TODO: Perform conversion on GPU using double2float and float2double kernels
    long t0 = DMLScript.STATISTICS ? System.nanoTime() : 0;
    if (PERFORM_CONVERSION_ON_DEVICE) {
        Pointer deviceDoubleData = gCtx.allocate(((long) src.length) * Sizeof.DOUBLE);
        cudaMemcpy(deviceDoubleData, Pointer.to(src), ((long) src.length) * Sizeof.DOUBLE,
                cudaMemcpyHostToDevice);
        LibMatrixCUDA.double2float(gCtx, deviceDoubleData, dest, src.length);
        gCtx.cudaFreeHelper(instName, deviceDoubleData, DMLScript.EAGER_CUDA_FREE);
    } else {//from w ww . j a v a2 s  .c om
        FloatBuffer floatData = ByteBuffer.allocateDirect(Sizeof.FLOAT * src.length)
                .order(ByteOrder.nativeOrder()).asFloatBuffer();
        IntStream.range(0, src.length).parallel().forEach(i -> floatData.put(i, (float) src[i]));
        cudaMemcpy(dest, Pointer.to(floatData), ((long) src.length) * Sizeof.FLOAT, cudaMemcpyHostToDevice);
    }

    if (DMLScript.STATISTICS) {
        long totalTime = System.nanoTime() - t0;
        GPUStatistics.cudaDouble2FloatTime.add(totalTime);
        GPUStatistics.cudaDouble2FloatCount.add(1);
        if (DMLScript.FINEGRAINED_STATISTICS && instName != null)
            GPUStatistics.maintainCPMiscTimes(instName, GPUInstruction.MISC_TIMER_HOST_TO_DEVICE, totalTime);
    }
}

From source file:org.icgc.dcc.portal.pql.convert.FiltersConverter.java

private static <T> Stream<T> tail(@NonNull List<T> list) {
    val size = list.size();

    return (size < 2) ? Stream.empty() : IntStream.range(1, size).boxed().map(i -> list.get(i));
}

From source file:it.greenvulcano.gvesb.api.controller.GvConfigurationControllerRest.java

@GET
@Path("/configuration/{configId}")
@Produces(MediaType.APPLICATION_JSON)/*from  ww w . j  a  v a  2s. c om*/
@RolesAllowed({ Authority.ADMINISTRATOR, Authority.MANAGER })
public Response getArchivedConfigServices(@PathParam("configId") String id) {

    try {
        byte[] gvcore = gvConfigurationManager.extract(id, "GVCore.xml");

        if (gvcore != null && gvcore.length > 0) {

            Document gvcoreDocument = documentBuilder.parse(new ByteArrayInputStream(gvcore));

            NodeList serviceNodes = XMLConfig.getNodeList(gvcoreDocument, "//Service");

            Map<String, ServiceDTO> services = IntStream.range(0, serviceNodes.getLength())
                    .mapToObj(serviceNodes::item).map(ServiceDTO::buildServiceFromConfig)
                    .filter(Optional::isPresent).map(Optional::get)
                    .collect(Collectors.toMap(ServiceDTO::getIdService, Function.identity()));

            LOG.debug("Services found " + serviceNodes.getLength());
            return Response.ok(toJson(services)).build();

        }

        return Response.status(Response.Status.NOT_FOUND).build();

    } catch (XMLConfigException | JsonProcessingException xmlConfigException) {
        LOG.error("Error reading services configuration", xmlConfigException);
        throw new WebApplicationException(Response.status(Response.Status.INTERNAL_SERVER_ERROR)
                .entity(toJson(xmlConfigException)).build());
    } catch (Exception e) {
        LOG.error("Error reading services configuration", e);
        return Response.status(Response.Status.NOT_FOUND).build();

    }

}

From source file:org.commonjava.maven.galley.cache.infinispan.FastLocalCacheProviderConcurrentIOTest.java

private void multiWriteOnFilesInFolder(final Map<String, String> fileFolderMap, final int threads)
        throws Exception {
    List<ConcreteResource> resources = new ArrayList<>(fileFolderMap.size());
    for (String fname : fileFolderMap.keySet()) {
        final String folder = fileFolderMap.get(fname);
        resources.add(createTestResource(fname, folder));
    }//  w  w w. jav  a 2s  .  co m

    final CountDownLatch waitLatch = new CountDownLatch(resources.size() * threads);

    for (ConcreteResource resource : resources) {
        IntStream.range(0, threads)
                .forEach(i -> testPool.execute(new WriteTask(provider, content, resource, waitLatch)));
    }

    TestIOUtils.latchWait(waitLatch, WAIT_TIMEOUT_SECONDS, TimeUnit.SECONDS);

    for (ConcreteResource resource : resources) {
        final String localResult = readLocalResource(resource);
        final String nfsResult = readNFSResource(resource);
        assertThat(localResult, equalTo(nfsResult));
    }
}

From source file:it.greenvulcano.gvesb.virtual.gv_multipart.MultipartCallOperation.java

/**
  * Adds on a Map the key and the value the given NodeList
  * /*from ww w  .  j  a  v  a2s . c  om*/
  * @param sourceNodeList
  * @param destinationMap
  */
private void fillMap(NodeList sourceNodeList, Map<String, String> destinationMap) {

    if (sourceNodeList.getLength() == 0) {
        destinationMap.clear();
    } else {
        IntStream.range(0, sourceNodeList.getLength()).mapToObj(sourceNodeList::item).forEach(node -> {
            try {
                destinationMap.put(XMLConfig.get(node, "@name"), XMLConfig.get(node, "@value"));
            } catch (Exception e) {
                logger.error("Fail to read configuration", e);
            }
        });
    }
}

From source file:nl.xs4all.home.freekdb.b52reader.gui.MainGuiTest.java

private void checkArticlesInGui(FilterTestType testType, MainGui mainGui, int tableRowCount)
        throws IllegalAccessException {
    int expectedRowCount = mockConfiguration.useSpanTable() ? 2 : 1;

    if (testType == NO_MATCHES) {
        expectedRowCount = 0;/*from   ww w.j  a v a  2 s .  co m*/
    } else if (testType == REMOVE_TEXT) {
        expectedRowCount = 5;
    }

    assertEquals(expectedRowCount, tableRowCount);

    Object filteredArticlesField = FieldUtils.readField(mainGui, "filteredArticles", true);

    assertTrue(filteredArticlesField instanceof List);
    List filteredArticles = (List) filteredArticlesField;

    if (testType == INSERT_TEXT) {
        assertEquals("u1", ((Article) filteredArticles.get(0)).getUrl());
    } else if (testType == CHANGE_TEXT) {
        assertEquals("u2", ((Article) filteredArticles.get(0)).getUrl());
    } else if (testType == REMOVE_TEXT) {
        IntStream.range(0, filteredArticles.size()).forEach(index -> {
            // Test article 3 (with index 2) is archived and should be filtered out: u1, u2, u4, u5, and u6.
            String expectedUrl = "u" + (index + (index < 2 ? 1 : 2));
            assertEquals(expectedUrl, ((Article) filteredArticles.get(index)).getUrl());
        });
    }
}

From source file:org.lightjason.agentspeak.action.builtin.TestCActionCollectionList.java

/**
 * test flat action/*from w  w w. ja  va 2s  .  c o  m*/
 */
@Test
public final void flat() {
    final Random l_random = new Random();

    final List<ITerm> l_return = new ArrayList<>();
    final List<?> l_list = IntStream.range(0, l_random.nextInt(100) + 1)
            .mapToObj(i -> RandomStringUtils.random(l_random.nextInt(100) + 1)).collect(Collectors.toList());

    new CFlat().execute(false, IContext.EMPTYPLAN,
            l_list.stream().map(CRawTerm::from).collect(Collectors.toList()), l_return);

    Assert.assertEquals(l_return.size(), l_list.size());
    Assert.assertArrayEquals(l_return.stream().map(ITerm::raw).toArray(), l_list.toArray());
}

From source file:delfos.rs.trustbased.WeightedGraph.java

public static final AdjMatrixEdgeWeightedDigraph cloneAdjMatrixEdgeWeightedDigraph(
        AdjMatrixEdgeWeightedDigraph adjMatrixEdgeWeightedDigraph) {
    AdjMatrixEdgeWeightedDigraph copy = new AdjMatrixEdgeWeightedDigraph(adjMatrixEdgeWeightedDigraph.V());

    IntStream.range(0, adjMatrixEdgeWeightedDigraph.V()).sequential().forEach(vertex -> {
        for (DirectedEdge directedEdge : adjMatrixEdgeWeightedDigraph.adj(vertex)) {
            copy.addEdge(directedEdge);//from   w  w  w  .  jav a  2 s. co  m
        }

    });

    return copy;
}