Example usage for java.lang Byte SIZE

Introduction

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

Prototype

int SIZE

To view the source code for java.lang Byte SIZE.

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Document

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

Usage

From source file:Main.java

public static byte[] leIntToByteArray(int i) {
    final ByteBuffer bb = ByteBuffer.allocate(Integer.SIZE / Byte.SIZE);
    bb.order(ByteOrder.LITTLE_ENDIAN);
    bb.putInt(i);//from w w w. ja  va 2s . c o  m
    return bb.array();
}

From source file:Main.java

public static byte[] int2bytes(int a) {
    int arraySize = Integer.SIZE / Byte.SIZE;
    ByteBuffer buffer = ByteBuffer.allocate(arraySize);
    buffer.order(ByteOrder.LITTLE_ENDIAN);
    return buffer.putInt(a).array();
}

From source file:Main.java

/**
 * 7 => 00000111//from  w  w  w  .  j av a 2  s. co m
 *
 * @param src
 * @return
 */
public static String getBinaryString(byte src) {
    String binaryString = Integer.toBinaryString(src);
    if (binaryString.length() > Byte.SIZE) {
        binaryString = binaryString.substring(binaryString.length() - Byte.SIZE);
    } else {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < Byte.SIZE - binaryString.length(); i++) {
            sb.append("0");
        }
        binaryString = sb.toString() + binaryString;
    }
    return binaryString;
}

From source file:Main.java

/**
 * Converting the Byte to binary//  w  w w .  jav a2 s  .  co  m
 * 
 * @param bytes
 * @return {@link String}
 */
public static String BytetoBinary(byte[] bytes) {
    StringBuilder sb = new StringBuilder(bytes.length * Byte.SIZE);
    for (int i = 0; i < Byte.SIZE * bytes.length; i++)
        sb.append((bytes[i / Byte.SIZE] << i % Byte.SIZE & 0x80) == 0 ? '0' : '1');
    return sb.toString();
}

From source file:ByteString.java

public int getStoredLength() {
    return bytes.length + (Short.SIZE / Byte.SIZE);
}

From source file:net.ripe.rpki.commons.crypto.util.Asn1Util.java

public static DERBitString resourceToBitString(UniqueIpResource resource, int bitCount) {
    int resourceTypeByteSize = resource.getType().getBitSize() / Byte.SIZE;

    byte[] value = resource.getValue().toByteArray();
    byte[] padded;
    if (value.length > resourceTypeByteSize) {
        // Skip extra sign byte added by BigInteger.
        padded = Arrays.copyOfRange(value, 1, value.length);
    } else if (value.length < resourceTypeByteSize) {
        // Pad with leading zero bytes (e.g. 0.12.0.0)
        padded = new byte[resourceTypeByteSize];
        System.arraycopy(value, 0, padded, resourceTypeByteSize - value.length, value.length);
    } else {/* www  .  j  ava2s .com*/
        padded = value;
    }

    assert padded.length == resourceTypeByteSize : "incorrect padded length";

    int byteCount = (bitCount + Byte.SIZE - 1) / Byte.SIZE;
    int unusedBits = Byte.SIZE - 1 - ((bitCount + Byte.SIZE - 1) % Byte.SIZE);
    return new DERBitString(ArrayUtils.subarray(padded, 0, byteCount), unusedBits);
}

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 .j a  v  a2  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.EtherAddress.java

/**
 * Convert the given byte array that represents an ethernet address into
 * a long integer number./* ww w  . j a v a 2s  .c  o m*/
 *
 * @param b  A byte array.
 * @return  A long integer number.
 * @throws NullPointerException
 *    {@code b} is {@code null}.
 * @throws IllegalArgumentException
 *    The length of {@code b} is not 6.
 */
public static long toLong(byte[] b) {
    checkAddress(b);

    long num = 0L;
    int i = 0;
    do {
        num <<= Byte.SIZE;
        num |= b[i] & NumberUtils.MASK_BYTE;
        i++;
    } while (i < SIZE);

    return num;
}

From source file:com.jadarstudios.rankcapes.bukkit.network.packet.S0PacketPlayerCapesUpdate.java

@Override
public int getSize() {
    return Byte.SIZE + JSONValue.toJSONString(this.playersMap).getBytes().length;
}

From source file:ninja.utils.CookieEncryption.java

@Inject
public CookieEncryption(NinjaProperties properties) {

    Optional<SecretKeySpec> secretKeySpec = Optional.absent();

    if (properties.getBooleanWithDefault(NinjaConstant.applicationCookieEncrypted, false)) {

        encryptionEnabled = true;/* ww w.j  av a2  s.  c o m*/

        String secret = properties.getOrDie(NinjaConstant.applicationSecret);
        try {
            int maxKeyLengthBits = Cipher.getMaxAllowedKeyLength(ALGORITHM);
            if (maxKeyLengthBits == Integer.MAX_VALUE) {
                maxKeyLengthBits = 256;
            }

            secretKeySpec = Optional
                    .of(new SecretKeySpec(secret.getBytes(), 0, maxKeyLengthBits / Byte.SIZE, ALGORITHM));

            logger.info("Ninja session encryption is using {} / {} bit.", secretKeySpec.get().getAlgorithm(),
                    maxKeyLengthBits);

        } catch (Exception exception) {
            logger.error("Can not create class to encrypt cookie.", exception);
            throw new RuntimeException(exception);
        }

    } else {
        encryptionEnabled = false;
        secretKeySpec = Optional.absent();
    }

    this.secretKeySpec = secretKeySpec;

}