Example usage for java.util Arrays fill

Introduction

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

Prototype

public static void fill(Object[] a, Object val) 

Source Link

Document

Assigns the specified Object reference to each element of the specified array of Objects.

Usage

From source file:com.opengamma.analytics.financial.equity.variance.pricing.RealizedVariance.java

@Override
public Double evaluate(final VarianceSwap swap) {

    double[] obs = swap.getObservations();
    int nObs = obs.length;

    if (nObs < 2) {
        return 0.0;
    }/*from w  ww. j a va  2s  .c o  m*/

    Double[] weights = new Double[obs.length - 1];
    if (swap.getObservationWeights().length == 0) {
        Arrays.fill(weights, 1.0);
    } else if (swap.getObservationWeights().length == 1) {
        Arrays.fill(weights, swap.getObservationWeights()[0]);
    } else {
        int nWeights = swap.getObservationWeights().length;
        Validate.isTrue(nWeights == nObs - 1,
                "If provided, observationWeights must be of length one less than observations, as they weight returns log(obs[i]/obs[i-1])."
                        + " Found " + nWeights + " weights and " + nObs + " observations.");
    }
    Validate.isTrue(obs[0] != 0.0,
            "In VarianceSwap, the first observation is zero so the estimate of RealizedVariance is undefined. Check time series.");
    double logReturns = 0;
    for (int i = 1; i < nObs; i++) {
        Validate.isTrue(obs[i] != 0.0, "Encountered an invalid observation of zero in VarianceSwap at " + i
                + "'th observation. " + "The estimate of RealizedVariance is undefined. Check time series.");

        logReturns += weights[i - 1] * FunctionUtils.square(Math.log(obs[i] / obs[i - 1]));
    }

    return logReturns / (nObs - 1) * swap.getAnnualizationFactor();
}

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From source file:eu.dety.burp.joseph.utilities.Decoder.java

/**
 * Split JOSE value into its separate parts with fixed length
 * //from   w w w .  j av  a2  s  .  c o  m
 * @param input
 *            Compact serialization JOSE value
 * @param assureLength
 *            Assure a certain length of the returned string array
 * @return string array with the separate fixed amount of parts
 */
public static String[] getComponents(String input, int assureLength) {
    String[] components = input.split("\\.");

    // If length is already correct return the components
    if (components.length == assureLength) {
        return components;
    }

    String[] output = new String[assureLength];
    Arrays.fill(output, "");

    System.arraycopy(components, 0, output, 0, Math.min(components.length, assureLength));

    return output;
}

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From source file:com.ibm.sbt.services.client.connections.activities.ActivityEntryPerformanceTest.java

@Test
@org.junit.Ignore("Issue with Mime Depdency")
public void testCreateActivityEntries() throws ClientServicesException {

    System.setErr(new PrintStream(new ByteArrayOutputStream()));

    Activity activity = createActivity();
    String activityUuid = activity.getActivityUuid();
    String title = activity.getThemeId();

    FileField fileField = new FileField();
    fileField.setName("test_file");
    fileField.setHidden(true);/*from   w  w  w . ja  v a  2  s. c  om*/
    fileField.setPosition(2000);

    byte[] bytes = new byte[Integer.valueOf(1024)];
    Arrays.fill(bytes, (byte) 0);

    StringWriter stringWriter = new StringWriter();
    PrintWriter writer = new PrintWriter(stringWriter);
    writer.println("#,NodeUUID,Time(ms)");
    for (int i = 0; i < 500; i++) {
        try {
            long start = System.currentTimeMillis();

            System.out.print(i + " ");

            ActivityNode activityNode = new ActivityNode();
            activityNode.setActivityUuid(activityUuid);
            activityNode.setTitle(title + " - " + i);
            activityNode.setType(ActivityNode.TYPE_ENTRY);
            for (int j = 0; j < 5; j++) {
                TextField textField = new TextField();
                textField.setName("test_text" + j);
                textField.setPosition(1000);
                textField.setSummary("Test_Text_Field");
                activityNode.addField(textField);
            }
            activityNode.addField(fileField);
            activityNode.addAttachment(new ActivityAttachment("test_file", new String(bytes), "text/plain"));

            activityNode = activityService.createActivityNode(activityNode);

            long duration = System.currentTimeMillis() - start;
            writer.println(i + "," + activityNode.getActivityNodeUuid() + "," + duration);
        } catch (Exception e) {
        }
    }

    System.out.println(stringWriter.toString());

    /*
    long start = System.currentTimeMillis();
    Map<String, String> params = new HashMap<String, String>();
    params.put("page", "1");
    params.put("ps", "1");
    activityService.getActivityNodeDescendants(activityUuid, params);
    long duration = System.currentTimeMillis() - start;
    System.out.println("Reading all activity descendants took "+duration+"(ms)");
            
    start = System.currentTimeMillis();
    params.put("tag", "personal");
    activityService.getActivityNodeChildren(activityUuid, params);
    duration = System.currentTimeMillis() - start;
    System.out.println("Reading all activity children took "+duration+"(ms)");
    */
}

---

From source file:de.tor.tribes.util.BuildingSettings.java

public static boolean loadSettings(String pServerID) {
    Arrays.fill(MAX_LEVEL, -1);
    Arrays.fill(MIN_LEVEL, -1);/*ww  w  .  ja v  a  2s.  co m*/

    Arrays.fill(BUILD_WOOD, -1);
    Arrays.fill(BUILD_STONE, -1);
    Arrays.fill(BUILD_IRON, -1);
    Arrays.fill(BUILD_POP, -1);
    Arrays.fill(BUILD_TIME, -1);
    Arrays.fill(BUILD_WOOD_FACTOR, Double.NaN);
    Arrays.fill(BUILD_STONE_FACTOR, Double.NaN);
    Arrays.fill(BUILD_IRON_FACTOR, Double.NaN);
    Arrays.fill(BUILD_POP_FACTOR, Double.NaN);
    Arrays.fill(BUILD_TIME_FACTOR, Double.NaN);

    try {
        logger.debug("Loading server buildings");
        String buildingsPath = Constants.SERVER_DIR + "/" + pServerID + "/buildings.xml";

        logger.debug("Parse buildings from '" + buildingsPath + "'");
        Document d = JDomUtils.getDocument(new File(buildingsPath));

        for (Element b : d.getRootElement().getChildren()) {
            String name = b.getName();
            int index = ArrayUtils.indexOf(BUILDING_NAMES, name);

            if (index < 0) {
                logger.warn("Found unknown Building {}", name);
                continue;
            }

            try {
                MAX_LEVEL[index] = Integer.parseInt(b.getChildTextTrim("max_level"));
                MIN_LEVEL[index] = Integer.parseInt(b.getChildTextTrim("min_level"));

                BUILD_WOOD[index] = Integer.parseInt(b.getChildTextTrim("wood"));
                BUILD_STONE[index] = Integer.parseInt(b.getChildTextTrim("stone"));
                BUILD_IRON[index] = Integer.parseInt(b.getChildTextTrim("iron"));
                BUILD_POP[index] = Integer.parseInt(b.getChildTextTrim("pop"));
                BUILD_TIME[index] = Integer.parseInt(b.getChildTextTrim("build_time"));
                BUILD_WOOD_FACTOR[index] = Double.parseDouble(b.getChildTextTrim("wood_factor"));
                BUILD_STONE_FACTOR[index] = Double.parseDouble(b.getChildTextTrim("stone_factor"));
                BUILD_IRON_FACTOR[index] = Double.parseDouble(b.getChildTextTrim("iron_factor"));
                BUILD_POP_FACTOR[index] = Double.parseDouble(b.getChildTextTrim("pop_factor"));
                BUILD_TIME_FACTOR[index] = Double.parseDouble(b.getChildTextTrim("build_time_factor"));
            } catch (Exception e) {
                logger.error("Got an excetion during reading of buildings", e);
            }
        }
    } catch (Exception e) {
        logger.error("Failed to load buildings", e);
        return false;
    }
    logger.info(Arrays.toString(MAX_LEVEL));
    logger.info(Arrays.toString(MIN_LEVEL));
    logger.info(Arrays.toString(BUILD_WOOD));
    logger.info(Arrays.toString(BUILD_STONE));
    logger.info(Arrays.toString(BUILD_IRON));
    logger.info(Arrays.toString(BUILD_POP));
    logger.info(Arrays.toString(BUILD_TIME));
    logger.info(Arrays.toString(BUILD_WOOD_FACTOR));
    logger.info(Arrays.toString(BUILD_STONE_FACTOR));
    logger.info(Arrays.toString(BUILD_IRON_FACTOR));
    logger.info(Arrays.toString(BUILD_POP_FACTOR));
    logger.info(Arrays.toString(BUILD_TIME_FACTOR));
    logger.debug("Successfully read buildings for server '" + pServerID + "'");
    return true;
}

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From source file:de.tudarmstadt.lt.ltbot.postprocessor.DecesiveValuePrioritizer.java

public DecesiveValuePrioritizer() {
    setExtraInfoValueFieldName(SharedConstants.EXTRA_INFO_PERPLEXITY);
    setAssignmentBoundaries("5e2,5e3,Infinity"); // one for each priority (HIGH,MEDIUM,NORMAL) HIGHER is reserved for prerequisites
    setMaxvalue(15);//from  w  w w. j  a v a  2  s  .  c o  m
    _assignment_counts = new long[4]; // one for each priority
    Arrays.fill(_assignment_counts, 0l);
    _count_reject = 0l;
}

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From source file:com.almende.eve.algorithms.DAA.java

/**
 * Sets this nodes new value.//from   w w  w.j  a  v  a2s . c  om
 *
 * @param value
 *            the new new value
 */
public void setNewValue(final double value) {
    localValue = new DAAValueBean(width, evictionFactor);
    localValue.generate(value).setTTL(DateTime.now().plus(100).getMillis());
    if (currentEstimate == null) {
        currentEstimate = new DAAValueBean(width, evictionFactor);
        Arrays.fill(currentEstimate.valueArray, Double.MAX_VALUE);
    }
    currentEstimate.minimum(localValue);
}

---

From source file:ricecompression.RiceCompression.java

public String compress(int m, int n) {
    String riceCode;/*w  w w.j  a v  a  2  s  . c  o m*/
    int nBitsM = (int) (Math.log10(m) / Math.log10(2));
    if (n < 0)
        riceCode = "0"; //Valor negatiu
    else
        riceCode = "1"; //Valor negatiu
    int q = Math.abs(n) / m;
    char[] array = new char[q];
    Arrays.fill(array, '1');
    if (array.length > 0)
        riceCode = riceCode.concat(String.valueOf(array)); //Si el quocient es major a 0
    riceCode = riceCode.concat("0");
    int r = Math.abs(n) % m;
    String rBinary = String.format("%" + nBitsM + "s", Integer.toBinaryString(r)).replace(' ', '0');
    riceCode = riceCode.concat(rBinary);
    return riceCode;
}

---

From source file:hivemall.common.DenseModel.java

public DenseModel(int ndims, boolean withCovar) {
    int size = ndims + 1;
    this.size = size;
    this.weights = new float[size];
    if (withCovar) {
        float[] covars = new float[size];
        Arrays.fill(covars, 1f);
        this.covars = covars;
    } else {// w  ww .  j a  v  a2 s  . c om
        this.covars = null;
    }
}

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From source file:io.milton.common.RangeUtilsTest.java

public void xtestSendBytes_Over1k() throws Exception {
    long length = 5000;
    byte[] buf = new byte[10000];
    Arrays.fill(buf, (byte) 3);
    ByteArrayInputStream in = new ByteArrayInputStream(buf);
    ByteArrayOutputStream out = new ByteArrayOutputStream();

    RangeUtils.sendBytes(in, out, length);

    assertEquals(5000, out.toByteArray().length);

}

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From source file:jetbrains.exodus.entitystore.processRunners.ProcessRunner.java

private void step() throws Exception {
    Entity entity = txn.newEntity("Person");
    entity.setProperty("name", "Vadim");
    entity.setProperty("password", "dummypassword");
    byte[] blob = new byte[1024 * 1024];
    Arrays.fill(blob, (byte) 1);
    entity.setBlob("weight", new ByteArrayInputStream(blob));
    txn.flush();//from   w w w.  j  a  v  a 2  s  .  c o  m
}

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