Example usage for java.lang Integer SIZE

Introduction

In this page you can find the example usage for java.lang Integer SIZE.

Prototype

int SIZE

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Document

The number of bits used to represent an int value in two's complement binary form.

Usage

From source file:org.apache.accumulo.server.security.SecurityConstants.java

private static AuthenticationToken makeSystemPassword() {
    int wireVersion = Constants.WIRE_VERSION;
    byte[] inst = HdfsZooInstance.getInstance().getInstanceID().getBytes(Constants.UTF8);
    try {//from w w w.  ja  va  2 s.  c o  m
        confChecksum = getSystemConfigChecksum();
    } catch (NoSuchAlgorithmException e) {
        throw new RuntimeException("Failed to compute configuration checksum", e);
    }

    ByteArrayOutputStream bytes = new ByteArrayOutputStream(
            3 * (Integer.SIZE / Byte.SIZE) + inst.length + confChecksum.length);
    DataOutputStream out = new DataOutputStream(bytes);
    try {
        out.write(wireVersion * -1);
        out.write(inst.length);
        out.write(inst);
        out.write(confChecksum.length);
        out.write(confChecksum);
    } catch (IOException e) {
        throw new RuntimeException(e); // this is impossible with
        // ByteArrayOutputStream; crash hard
        // if this happens
    }
    return new PasswordToken(Base64.encodeBase64(bytes.toByteArray()));
}

From source file:com.xsdn.main.util.Ip4Network.java

/**
 * Return an IPv4 prefix length represented by the given byte array.
 *
 * <p>/*  w ww . j a  v a2s.c  om*/
 *   Note that this method returns 32 if all the bits in the given array
 *   are not set.
 * </p>
 *
 * @param bytes  A byte array which represents IPv4 network mask.
 * @return  The IPv4 prefix length represented by the given byte array.
 * @throws NullPointerException
 *    {@code bytes} is {@code null}.
 * @throws IllegalArgumentException
 *    The given byte array does not represent an IPv4 network mask.
 */
public static int getPrefixLength(byte[] bytes) {
    // Verify the given network mask.
    int mask = NumberUtils.toInteger(bytes);
    if (mask == 0) {
        return Integer.SIZE;
    }

    int inv = ~mask;
    int p2 = inv + 1;
    if ((p2 & inv) != 0) {
        throw new IllegalArgumentException("Invalid IPv4 netmask: " + Integer.toHexString(mask));
    }

    return Integer.numberOfLeadingZeros(inv);
}

From source file:com.bah.culvert.util.Bytes.java

/**
 * Convert the integer to a byte []/* ww  w .  jav  a 2 s.  c  om*/
 * @param i
 * @return
 */
public static byte[] toBytes(int i) {
    int bytes = Integer.SIZE / 8;

    return ByteBuffer.allocate(bytes).putInt(i).array();
}

From source file:com.github.joulupunikki.math.random.BitsStreamGenerator64.java

/**
 * For 64 bit generators, {@link #nextL(int bits)} is the core generator
 * function and this method will delegate.
 *
 * @param bits// w w  w.j a  v a 2 s  .  c  o  m
 * @return
 */
@Override
protected int next(int bits) {
    if (isIntLeft) {
        isIntLeft = false;
        return intLeft >>> (Integer.SIZE - bits);
    } else {
        return nextInt() >>> (Integer.SIZE - bits);
    }
}

From source file:org.diorite.impl.world.chunk.palette.MapPaletteImpl.java

@Override
public int bitsPerBlock() {
    final int size = this.lastUsed;
    if (size <= 1) {
        return 4;
    }/*from w  ww.java2 s. c  o  m*/
    return Math.max(4, Integer.SIZE - Integer.numberOfLeadingZeros(size - 1));
}

From source file:com.lanacion.adminsiteln.controllers.DefaultController.java

License:asdf

@RequestMapping(value = "/testcrea", method = RequestMethod.GET)
@ResponseBody/*from   w  w  w  .j a  va 2 s  .co  m*/
public String getTestcrea() {

    infoService.create("titulo desde spring", "desde spring", 1, Integer.SIZE);

    return "Donde";
}

From source file:com.openteach.diamond.network.waverider.command.Command.java

/**
 * /* w ww .ja  v a 2 s .c  o m*/
 * @return
 */
public static int getHeaderSize() {
    int size = 0;
    size += Long.SIZE / Byte.SIZE;
    size += Integer.SIZE / Byte.SIZE;
    return size;
}

From source file:com.xsdn.main.util.Ip4Network.java

/**
 * Return an integer value which represents the IPv4 netmask specified by
 * the given prefix length./*from   w ww  .  j  a  v a2  s .c om*/
 *
 * @param length  The IPv4 prefix length.
 *                Note that zero means "no mask". So zero is treated as if
 *                the maximum prefix length is specified.
 * @return  An integer value.
 * @throws IllegalArgumentException
 *    The given prefix length is invalid.
 */
public static int getNetMask(int length) {
    if (length < 0 || length > Integer.SIZE) {
        throw new IllegalArgumentException("Invalid prefix length: " + length);
    }

    int nzeroes = Integer.SIZE - length;
    return (NETMASK_ALL << nzeroes);
}

From source file:com.openteach.diamond.network.waverider.network.Packet.java

/**
 * //from  w w  w  .j a  v  a  2 s  .  c o  m
 * @return
 */
public static int getHeaderSize() {
    int size = 0;
    size += NetWorkConstants.WAVERIDER_MAGIC.getBytes().length;
    size += Long.SIZE / Byte.SIZE;
    size += Long.SIZE / Byte.SIZE;
    size += Integer.SIZE / Byte.SIZE;

    return size;
}

From source file:com.github.joulupunikki.math.random.BitsStreamGenerator64.java

@Override
public int nextInt() {
    if (isIntLeft) {
        // use the 32 LSBs of the long already generated
        isIntLeft = false;/*  w  w  w.j a v a  2s.c om*/
        return intLeft;
    } else {
        // generate a new pair of integers (long split in half)
        long t = nextLong();
        intLeft = (int) t; // 32 LSBs stored
        isIntLeft = true;
        return (int) (t >>> Integer.SIZE); // 32 MSBs returned
    }
}