Example usage for java.nio ByteBuffer putLong

Introduction

In this page you can find the example usage for java.nio ByteBuffer putLong.

Prototype

public abstract ByteBuffer putLong(long value);

Source Link

Document

Writes the given long to the current position and increases the position by 8.

Usage

From source file:org.apache.camel.converter.NIOConverter.java

@Converter
public static ByteBuffer toByteBuffer(Long value) {
    ByteBuffer buf = ByteBuffer.allocate(8);
    buf.putLong(value);
    return buf;//from  ww  w . java  2  s .co  m
}

From source file:com.intellectualcrafters.plot.uuid.UUIDFetcher.java

@SuppressWarnings("unused")
public static byte[] toBytes(final UUID uuid) {
    final ByteBuffer byteBuffer = ByteBuffer.wrap(new byte[16]);
    byteBuffer.putLong(uuid.getMostSignificantBits());
    byteBuffer.putLong(uuid.getLeastSignificantBits());
    return byteBuffer.array();
}

From source file:com.knewton.mapreduce.util.RandomStudentEventGenerator.java

/**
 * Helper method for generating decorated increasing student ids. Used by
 * {@link WriteSampleSSTable} for writing a sorted SSTable.
 *
 * @return A list of byte buffers with student IDs
 *///  w w w .  j  av a  2 s  .c om
public static List<ByteBuffer> getStudentIds(int numberOfStudents) {
    long studentId = 1000000L;
    List<ByteBuffer> studentIds = Lists.newArrayListWithCapacity(numberOfStudents);

    for (int i = 0; i < numberOfStudents; i++) {
        ByteBuffer bb = ByteBuffer.wrap(new byte[8]);
        bb.putLong(studentId++);
        bb.rewind();
        studentIds.add(bb);
    }

    Collections.sort(studentIds, new Comparator<ByteBuffer>() {
        @Override
        public int compare(ByteBuffer o1, ByteBuffer o2) {
            DecoratedKey dk1 = StorageService.getPartitioner().decorateKey(o1);
            DecoratedKey dk2 = StorageService.getPartitioner().decorateKey(o2);
            return dk1.compareTo(dk2);
        }
    });

    return studentIds;
}

From source file:Main.java

public static String completeJweFromSIM(String jweSIM) {
    // android.os.Debug.waitForDebugger();

    try {//from w ww .j a v  a 2s. c o m
        if (jweSIM != null && jweSIM.length() > 0) {
            String parts[] = jweSIM.split("\\.");
            ;
            if (parts != null && parts.length == 5) {
                // retrieve hmac key
                byte hmac_key[] = Base64.decode(parts[4], Base64.URL_SAFE);
                if (hmac_key != null && hmac_key.length == 16) {
                    // init hash instance
                    Mac hmac = Mac.getInstance("HmacSHA256", "SC");
                    hmac.init(new SecretKeySpec(hmac_key, "HmacSHA256"));

                    byte[] aad = parts[0].getBytes();
                    long al = aad.length * 8;
                    byte[] iv_key = decodeB64(parts[2]);
                    byte[] cryptedBytes = decodeB64(parts[3]);

                    // build data to hash
                    byte[] hmacData = new byte[aad.length + iv_key.length + cryptedBytes.length + 8];
                    int offset = 0;
                    System.arraycopy(aad, offset, hmacData, 0, aad.length);
                    offset += aad.length;
                    System.arraycopy(iv_key, 0, hmacData, offset, iv_key.length);
                    offset += iv_key.length;
                    System.arraycopy(cryptedBytes, 0, hmacData, offset, cryptedBytes.length);
                    offset += cryptedBytes.length;
                    ByteBuffer buffer = ByteBuffer.allocate(8);
                    buffer.putLong(al);
                    System.arraycopy(buffer.array(), 0, hmacData, offset, 8);

                    // compute hac value
                    byte[] hmacValue = hmac.doFinal(hmacData);
                    // authentication tag
                    byte[] auth_tag = Arrays.copyOf(hmacValue, 16);
                    String auth_tag64 = encodeB64(auth_tag);

                    // A.2.7. Complete Representation
                    String finalString = parts[0] + "." + parts[1] + "." + parts[2] + "." + parts[3] + "."
                            + auth_tag64;

                    //                  // just for verification
                    //                  byte jwt64 [] = decryptJWE(finalString, RsaKeyTim.privRsaKey);
                    //                  if(jwt64!=null) {
                    //                     String jws = new String(jwt64);
                    //                     Log.d("completeJweFromSIM", "jws verify Key TIM :"+verifyJWS(jws,RsaKeyTim.pubRsaKey));
                    //                  }

                    return finalString;
                }
            }
            // 
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return null;
}

From source file:com.networknt.utility.Util.java

/**
 * Generate UUID across the entire app and it is used for correlationId.
 *
 * @return String correlationId/*from w ww.j  a v  a  2s .co m*/
 */
public static String getUUID() {
    UUID id = UUID.randomUUID();
    ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
    bb.putLong(id.getMostSignificantBits());
    bb.putLong(id.getLeastSignificantBits());
    return Base64.encodeBase64URLSafeString(bb.array());
}

From source file:com.pushtechnology.diffusion.examples.runnable.RandomData.java

/**
 * Serialize a {@link RandomData} value as a {@link Binary} value.
 * @param randomData The {@link RandomData} value
 * @return The {@link Binary} value//from   w ww .j  a v a  2 s.  com
 */
static Binary toBinary(RandomData randomData) {
    final ByteBuffer buffer = ByteBuffer.allocate(16);
    buffer.putInt(randomData.getId());
    buffer.putLong(randomData.getTimestamp());
    buffer.putInt(randomData.getRandomInt());
    return Diffusion.dataTypes().binary().readValue(buffer.array());
}

From source file:Main.java

static ByteBuffer createMsg(int state, long leader, long zxid, long epoch) {
    byte requestBytes[] = new byte[28];
    ByteBuffer requestBuffer = ByteBuffer.wrap(requestBytes);

    /*//  w  w  w .  j  a  va 2  s. com
     * Building notification packet to send
     */

    requestBuffer.clear();
    requestBuffer.putInt(state);
    requestBuffer.putLong(leader);
    requestBuffer.putLong(zxid);
    requestBuffer.putLong(epoch);

    return requestBuffer;
}

From source file:domain.Employee.java

private static String uuidToBase64(String str) {
    UUID uuid = UUID.fromString(str);
    ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
    bb.putLong(uuid.getMostSignificantBits());
    bb.putLong(uuid.getLeastSignificantBits());
    return Base64.encodeBase64URLSafeString(bb.array());
}

From source file:mtmo.test.mediadrm.Utils.java

public static String accountIdToMarlinFormat(final String accountId) {
    ByteBuffer accountIdBuf = ByteBuffer.allocate(BYTES_OF_ACCOUNT_ID);
    try {//from   w w w  .j av  a 2 s .c  o  m
        accountIdBuf.putLong(Long.valueOf(accountId));
    } catch (Exception e) {
        return null;
    }
    accountIdBuf.order(ByteOrder.LITTLE_ENDIAN);
    return String.format(Locale.US, "%016x", accountIdBuf.getLong(0));
}

From source file:info.gehrels.flockDBClient.ByteHelper.java

static ByteBuffer asByteBuffer(long... destinationIds) {
    ByteBuffer buf = null;
    buf = ByteBuffer.wrap(new byte[destinationIds.length * (Long.SIZE / 8)]);
    buf.order(ByteOrder.LITTLE_ENDIAN);
    for (long destinationId : destinationIds) {
        buf.putLong(destinationId);
    }/*from w  w w  .ja v  a  2 s .c  om*/
    buf.rewind();
    return buf;
}