Example usage for java.util Arrays copyOf

Introduction

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

Prototype

public static boolean[] copyOf(boolean[] original, int newLength)

Source Link

Document

Copies the specified array, truncating or padding with false (if necessary) so the copy has the specified length.

Usage

From source file:com.offbynull.voip.audio.gateways.io.OutputData.java

public OutputData(byte[] data) {
    Validate.notNull(data);
    this.data = Arrays.copyOf(data, data.length);
}

From source file:com.smartitengineering.cms.api.impl.Utils.java

public static String readStringInUTF8(DataInput in) throws IOException, UnsupportedEncodingException {
    int allocationBlockSize = 2000;
    int capacity = allocationBlockSize;
    int length = 0;
    ByteBuffer buffer = ByteBuffer.allocate(allocationBlockSize);
    boolean notEof = true;
    while (notEof) {
        try {/*w w w  . j a va  2  s .c o m*/
            buffer.put(in.readByte());
            if (++length >= capacity) {
                capacity += allocationBlockSize;
                buffer.limit(capacity);
            }
        } catch (EOFException ex) {
            notEof = false;
        }
    }
    String string = StringUtils.newStringUtf8(Arrays.copyOf(buffer.array(), length));
    return string;
}

From source file:controlpac.EncryptHelper.java

public static String Desencriptar(String textoEncriptado) {
    String base64EncryptedString = "";
    try {//from w  w  w.  ja  v  a  2  s  .co m
        byte[] message = Base64.decodeBase64(textoEncriptado.getBytes("utf-8"));//Desencodea el texto en base64
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8")); //Crea un hash con la clave elegida
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        SecretKey key = new SecretKeySpec(keyBytes, "DESede");//Crea la clave 
        Cipher decipher = Cipher.getInstance("DESede");
        decipher.init(Cipher.DECRYPT_MODE, key); //Inicia el descifrado
        byte[] plainText = decipher.doFinal(message);//Descifra el texto
        base64EncryptedString = new String(plainText, "UTF-8");
    } catch (Exception ex) {
    }
    return base64EncryptedString;
}

From source file:lib.clases_cripto.java

public static String Desencriptar(String textoEncriptado) throws Exception {

    String secretKey = "qualityinfosolutions"; //llave para desenciptar datos
    String base64EncryptedString = "";

    try {//  ww w .ja v  a  2  s.  co m
        byte[] message = Base64.decodeBase64(textoEncriptado.getBytes("utf-8"));
        MessageDigest md = MessageDigest.getInstance("MD5");
        byte[] digestOfPassword = md.digest(secretKey.getBytes("utf-8"));
        byte[] keyBytes = Arrays.copyOf(digestOfPassword, 24);
        SecretKey key = new SecretKeySpec(keyBytes, "DESede");

        Cipher decipher = Cipher.getInstance("DESede");
        decipher.init(Cipher.DECRYPT_MODE, key);

        byte[] plainText = decipher.doFinal(message);

        base64EncryptedString = new String(plainText, "UTF-8");

    } catch (Exception ex) {
    }
    return base64EncryptedString;
}

From source file:com.bytecode.util.Crypto.java

private static byte[] encrypt(String keystring, String message, int bits) throws Exception {
    byte[] encValue = null;
    SecureRandom random = new SecureRandom();
    byte[] nonceBytes = new byte[8];
    random.nextBytes(nonceBytes);/*from  w ww .ja va2s.co  m*/
    IvParameterSpec nonce = new IvParameterSpec(Arrays.copyOf(nonceBytes, 16));

    Key key = generateKey(keystring, bits);
    Cipher c = Cipher.getInstance(ALGORITHM);
    c.init(Cipher.ENCRYPT_MODE, key, nonce);
    byte[] ciphertextWithoutNonce = c.doFinal(message.getBytes("UTF-8"));
    encValue = Arrays.copyOf(nonceBytes, nonceBytes.length + ciphertextWithoutNonce.length);
    for (int i = 0; i < ciphertextWithoutNonce.length; i++) {
        encValue[i + 8] = ciphertextWithoutNonce[i];
    }

    return encValue;
}

From source file:com.offbynull.peernetic.playground.chorddht.messages.external.NotifyRequest.java

public NotifyRequest(byte[] id) {
    this.id = Arrays.copyOf(id, id.length);
    validate();
}

From source file:com.offbynull.peernetic.playground.chorddht.messages.external.GetIdResponse.java

public GetIdResponse(byte[] id) {
    this.id = Arrays.copyOf(id, id.length);
    validate();
}

From source file:com.offbynull.voip.audio.gateways.io.InputData.java

public InputData(byte[] data, int len) {
    Validate.notNull(data);// w  w  w .  j  av  a  2 s. c  o m
    Validate.isTrue(len >= 0);
    Validate.isTrue(len <= data.length);
    this.data = Arrays.copyOf(data, len);
}

From source file:com.opengamma.analytics.math.statistics.descriptive.ModeCalculator.java

/**
 * @param x The array of data, not null or empty
 * @return The arithmetic mean/*from  w  ww  . j ava2 s .c  om*/
 */
@Override
public Double evaluate(final double[] x) {
    Validate.notNull(x, "x");
    Validate.isTrue(x.length > 0, "x cannot be empty");
    if (x.length == 1) {
        return x[0];
    }
    final double[] x1 = Arrays.copyOf(x, x.length);
    Arrays.sort(x1);
    final TreeMap<Integer, Double> counts = new TreeMap<Integer, Double>();
    int count = 1;
    for (int i = 1; i < x1.length; i++) {
        if (Math.abs(x1[i] - x1[i - 1]) < EPS) {
            count++;
        } else {
            counts.put(count, x1[i - 1]);
            count = 1;
        }
    }
    if (counts.lastKey() == 1) {
        throw new MathException("Could not find mode for array; no repeated values");
    }
    return counts.lastEntry().getValue();
}

From source file:com.offbynull.peernetic.playground.chorddht.messages.external.UpdateFingerTableRequest.java

public UpdateFingerTableRequest(byte[] id) {
    this.id = Arrays.copyOf(id, id.length);
    validate();
}