Example usage for java.math BigInteger BigInteger

Introduction

In this page you can find the example usage for java.math BigInteger BigInteger.

Prototype

private BigInteger(long val) 

Source Link

Document

Constructs a BigInteger with the specified value, which may not be zero.

Usage

From source file:MainClass.java

public void run() {
    try {//from w w w.jav  a2  s .com
        ByteBuffer buffer = ByteBuffer.allocate(4);
        buffer.putInt(this.howMany);
        buffer.flip();
        while (buffer.hasRemaining())
            out.write(buffer);

        for (int i = 0; i < howMany; i++) {
            byte[] data = new BigInteger(Integer.toString(i)).toByteArray();
            buffer = ByteBuffer.allocate(4 + data.length);

            buffer.putInt(data.length);
            buffer.put(data);
            buffer.flip();

            while (buffer.hasRemaining())
                out.write(buffer);
        }
        out.close();
        System.err.println("Closed");
    } catch (IOException ex) {
        System.err.println(ex);
    }
}

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From source file:edu.wisc.hr.demo.RandomBenefitStatementDao.java

@Override
public BenefitStatements getBenefitStatements(String emplid) {

    if (emplIdToBenefitStatements.containsKey(emplid)) {
        return emplIdToBenefitStatements.get(emplid);
    }//  w w  w  .j a  v  a 2  s  .  c o  m

    int howManyBenefitStatements = random.nextInt(20);

    BenefitStatements benefitStatements = new BenefitStatements();

    for (int i = 0; i < howManyBenefitStatements; i++) {

        BenefitStatement benefitStatement = new BenefitStatement();

        int year = 2013 - i;
        String yearString = Integer.toString(year);

        benefitStatement.setDocId(new BigInteger(Integer.toString(random.nextInt())));
        benefitStatement.setDocType("WhatsADocType?");
        benefitStatement.setFullTitle("A Really Important Benefit Statement for ".concat(yearString));
        benefitStatement.setName("Benefit Statement ".concat(yearString));
        benefitStatement.setYear(new BigInteger(yearString));

        benefitStatements.getBenefitStatements().add(benefitStatement);

    }

    this.emplIdToBenefitStatements.put(emplid, benefitStatements);

    return benefitStatements;
}

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From source file:edu.wisc.hr.demo.RandomSabbaticalStatementDao.java

@Override
public SabbaticalReports getSabbaticalReports(String emplid) {

    if (this.emplIdToSabbaticalReports.containsKey(emplid)) {
        return emplIdToSabbaticalReports.get(emplid);
    }/*from   ww  w .j a  v  a 2  s  . c o m*/

    SabbaticalReports sabbaticalReports = new SabbaticalReports();

    int howManySabbaticalReports = random.nextInt(5);

    for (int i = 0; i < howManySabbaticalReports; i++) {

        SabbaticalReport sabbaticalReport = new SabbaticalReport();

        // TODO: make more realistic sabbatical reports

        sabbaticalReport.setFullTitle("What's a full title?");
        sabbaticalReport.setName("What's a name?");
        sabbaticalReport.setDocType("Type?");
        sabbaticalReport.setYear(new BigInteger("2013"));

        String randomDocId = Integer.toString(random.nextInt(Integer.MAX_VALUE));

        sabbaticalReport.setDocId(new BigInteger(randomDocId));

        sabbaticalReports.getSabbaticalReports().add(sabbaticalReport);

    }

    emplIdToSabbaticalReports.put(emplid, sabbaticalReports);

    return sabbaticalReports;
}

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From source file:UInt64.java

/**
 * Create a UInt64 from a BigInteger//from  w ww  .  j  a  va2  s . com
 * 
 * @param value
 *          Must be a valid BigInteger between MIN_VALUE–MAX_BIG_VALUE
 * @throws NumberFormatException
 *           if value is not an integer between MIN_VALUE and MAX_BIG_VALUE
 */
public UInt64(BigInteger value) {
    /*    if (null == value) { throw new NumberFormatException(MessageFormat.format(_("{0} is not between {1} and {2}."), new Object[] {
            value, MIN_VALUE, MAX_BIG_VALUE })); }
        if (0 > value.compareTo(BigInteger.ZERO)) { throw new NumberFormatException(MessageFormat.format(
            _("{0} is not between {1} and {2}."), new Object[] { value, MIN_VALUE, MAX_BIG_VALUE })); }
        if (0 < value.compareTo(MAX_BIG_VALUE)) { throw new NumberFormatException(MessageFormat.format(
            _("{0} is not between {1} and {2}."), new Object[] { value, MIN_VALUE, MAX_BIG_VALUE })); }
      */ this.value = value;
    top = this.value.shiftRight(32).and(new BigInteger("4294967295")).longValue();
    bottom = this.value.and(new BigInteger("4294967295")).longValue();
}

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From source file:com.github.jessemull.microflex.util.BigIntegerUtil.java

/**
 * Safely converts a number to a BigInteger. Loss of precision may occur. Throws
 * an arithmetic exception upon overflow.
 * @param    Number    object to parse/*  ww w  .  ja v a2s  .c  o m*/
 * @return             parsed object
 * @throws   ArithmeticException    on overflow
 */
public static BigInteger toBigInteger(Number number) {

    /* Switch on class and convert to BigInteger */

    String type = number.getClass().getSimpleName();
    BigInteger parsed;

    switch (type) {

    case "Byte":
        Byte by = (Byte) number;
        parsed = new BigInteger(by.toString());
        break;

    case "Short":
        Short sh = (Short) number;
        parsed = new BigInteger(sh.toString());
        break;

    case "Integer":
        Integer in = (Integer) number;
        parsed = new BigInteger(in.toString());
        break;

    case "Long":
        Long lo = (Long) number;
        parsed = new BigInteger(lo.toString());
        break;

    case "Float":
        Float fl = (Float) number;
        parsed = new BigInteger(fl.toString());
        break;

    case "BigInteger":
        parsed = (BigInteger) number;
        break;

    case "BigDecimal":
        parsed = ((BigDecimal) number).toBigInteger();
        break;

    case "Double":
        Double db = (Double) number;
        parsed = new BigInteger(db.toString());
        break;

    default:
        throw new IllegalArgumentException(
                "Invalid type: " + type + "\nData values " + "must extend the abstract Number class.");

    }

    return parsed;
}

---

From source file:Util.java

public static final BigDecimal[] interpLinear(BigDecimal[] x, BigDecimal[] y, BigDecimal[] xi) {
    if (x.length != y.length) {
        throw new IllegalArgumentException("X and Y must be the same length");
    }//  w w  w.  ja v a 2  s .c o  m
    if (x.length == 1) {
        throw new IllegalArgumentException("X must contain more than one value");
    }
    BigDecimal[] dx = new BigDecimal[x.length - 1];
    BigDecimal[] dy = new BigDecimal[x.length - 1];
    BigDecimal[] slope = new BigDecimal[x.length - 1];
    BigDecimal[] intercept = new BigDecimal[x.length - 1];

    // Calculate the line equation (i.e. slope and intercept) between each point
    BigInteger zero = new BigInteger("0");
    BigDecimal minusOne = new BigDecimal(-1);

    for (int i = 0; i < x.length - 1; i++) {
        //dx[i] = x[i + 1] - x[i];
        dx[i] = x[i + 1].subtract(x[i]);
        if (dx[i].equals(new BigDecimal(zero, dx[i].scale()))) {
            throw new IllegalArgumentException("X must be montotonic. A duplicate " + "x-value was found");
        }
        if (dx[i].signum() < 0) {
            throw new IllegalArgumentException("X must be sorted");
        }
        //dy[i] = y[i + 1] - y[i];
        dy[i] = y[i + 1].subtract(y[i]);
        //slope[i] = dy[i] / dx[i];
        slope[i] = dy[i].divide(dx[i]);
        //intercept[i] = y[i] - x[i] * slope[i];
        intercept[i] = x[i].multiply(slope[i]).subtract(y[i]).multiply(minusOne);
        //intercept[i] = y[i].subtract(x[i]).multiply(slope[i]);
    }

    // Perform the interpolation here
    BigDecimal[] yi = new BigDecimal[xi.length];
    for (int i = 0; i < xi.length; i++) {
        //if ((xi[i] > x[x.length - 1]) || (xi[i] < x[0])) {
        if (xi[i].compareTo(x[x.length - 1]) > 0 || xi[i].compareTo(x[0]) < 0) {
            yi[i] = null; // same as NaN
        } else {
            int loc = Arrays.binarySearch(x, xi[i]);
            if (loc < -1) {
                loc = -loc - 2;
                //yi[i] = slope[loc] * xi[i] + intercept[loc];
                yi[i] = slope[loc].multiply(xi[i]).add(intercept[loc]);
            } else {
                yi[i] = y[loc];
            }
        }
    }

    return yi;
}

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From source file:com.tasktop.c2c.server.internal.profile.crypto.OpenSSHPublicKeyReader.java

public SshPublicKey readPublicKey(String keySpec) {
    keySpec = keySpec.trim();// ww w  . ja va2 s  . c o  m
    String[] parts = keySpec.split(" ");
    if (parts.length >= 2) {
        String algorithm = parts[0];
        String base64Data = parts[1];
        if (algorithm.equals("ssh-rsa")) {
            SshPublicKey sshPublicKey = new SshPublicKey();
            sshPublicKey.setAlgorithm("RSA");
            byte[] decodedData = Base64.decodeBase64(StringUtils.getBytesUtf8(base64Data));

            Rfc4253Reader reader = new Rfc4253Reader(decodedData, 0);

            try {
                byte[] format = reader.readBytes();
                byte[] exponent = reader.readBytes();
                byte[] modulus = reader.readBytes();

                if (Arrays.equals(FORMAT, format)) {
                    BigInteger exp = new BigInteger(exponent);
                    BigInteger mod = new BigInteger(modulus);
                    RSAPublicKeySpec rsaPublicKeySpec = new RSAPublicKeySpec(mod, exp);
                    try {
                        PublicKey publicKey = KeyFactory.getInstance("RSA").generatePublic(rsaPublicKeySpec);
                        sshPublicKey.setKeyData(publicKey.getEncoded());
                        return sshPublicKey;
                    } catch (InvalidKeySpecException t) {
                        getLogger().warn("Invalid key spec: " + t.getMessage(), t);
                    } catch (NoSuchAlgorithmException t) {
                        getLogger().warn("Invalid algorithm: " + t.getMessage(), t);
                    }
                }

            } catch (IOException e) {
                // ignore
            }
        }
    }
    return null;
}

---

From source file:hydrograph.ui.engine.util.FTPUtil.java

/**
 * Converts the String to {@link BigInteger} for widgets
 * /*from   w w  w .  j  a  v  a  2  s  .c  om*/
 * @param propertyName
 * @return {@link BigInteger}
 */
public BigInteger getPortValue(String propertyName, String componentId, Map<String, Object> properties) {
    LOGGER.debug("Getting boolean Value for {}={}",
            new Object[] { propertyName, properties.get(propertyName) });
    BigInteger bigInteger = null;
    String propertyValue = (String) properties.get(propertyName);
    if (StringUtils.isNotBlank(propertyValue) && StringUtils.isNumeric(propertyValue)) {
        bigInteger = new BigInteger(String.valueOf(propertyValue));
    } else if (ParameterUtil.isParameter(propertyValue)) {
        ComponentXpath.INSTANCE.getXpathMap()
                .put((ComponentXpathConstants.COMPONENT_XPATH_BOOLEAN.value().replace("$id", componentId))
                        .replace(Constants.PARAM_PROPERTY_NAME, propertyName),
                        new ComponentsAttributeAndValue(null, properties.get(propertyName).toString()));
        return null;
    }
    return bigInteger;
}

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From source file:org.glytoucan.api.soap.GlycoSequenceEndpointTest.java

@Test
public void testSendAndReceive() {
    GlycoSequenceDetailRequest request = new GlycoSequenceDetailRequest();
    request.setAccessionNumber("G00055MO");

    Object result = new WebServiceTemplate(marshaller).marshalSendAndReceive("http://localhost:" + port + "/ws",
            request);/* w ww.j  ava 2 s .  c o  m*/
    assertNotNull(result);
    GlycoSequenceDetailResponse response = (GlycoSequenceDetailResponse) result;
    logger.debug(response);
    logger.debug(response.getDescription());
    Assert.assertEquals(new BigInteger("0"), response.getResponseMessage().getErrorCode());
    Assert.assertEquals("G00055MO", response.getAccessionNumber());
    Assert.assertTrue(response.getDescription().contains("Gal(b1-4)GlcNAc(b1-"));
}

---

From source file:it.geosolutions.opensdi.persistence.service.impl.TraceServiceTest.java

/**
 * Test for {@link TraceService#searchByRun(GeobatchRunInfo)} method
 *//*  w  w  w .jav  a 2 s.co  m*/
@Test
public void testSearchByRunInfo() {
    try {
        int traces = 10;
        TraceDto trace = null;
        String fileName = generateRandomString();
        for (int i = 0; i < traces; i++) {
            trace = getTestTrace(fileName, 10);
            trace.setNr_rec_scartati(new BigInteger(i + ""));
            trace = traceService.saveTrace(trace);
        }
        List<TraceDto> list = traceService.searchByRun(getTestRunInfo(trace));
        assertNotNull(list);
        assertTrue(!list.isEmpty());
        assertTrue(list.size() == traces);
    } catch (Exception e) {
        e.printStackTrace();
        fail();
    }
}

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