Example usage for java.util UUID getMostSignificantBits

Introduction

In this page you can find the example usage for java.util UUID getMostSignificantBits.

Prototype

public long getMostSignificantBits()

Source Link

Document

Returns the most significant 64 bits of this UUID's 128 bit value.

Usage

From source file:org.linguafranca.pwdb.kdbx.Helpers.java

public static String base64FromUuid(UUID uuid) {
    byte[] buffer = new byte[16];
    ByteBuffer b = ByteBuffer.wrap(buffer);
    b.putLong(uuid.getMostSignificantBits());
    b.putLong(8, uuid.getLeastSignificantBits());
    // round the houses for Android
    return new String(Base64.encodeBase64(buffer));
}

From source file:org.linguafranca.pwdb.kdbx.Helpers.java

public static String hexStringFromUuid(UUID uuid) {
    byte[] buffer = new byte[16];
    ByteBuffer b = ByteBuffer.wrap(buffer);
    b.putLong(uuid.getMostSignificantBits());
    b.putLong(8, uuid.getLeastSignificantBits());
    // round the houses for Android
    return new String(Hex.encodeHex(buffer));
}

From source file:com.enonic.cms.framework.util.UUIDGenerator.java

/**
 * Generate random uuid./*w  ww  .j  a v a  2s.  com*/
 */
public static String randomUUID() {
    UUID uuid = UUID.randomUUID();

    try {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        DataOutputStream dataOut = new DataOutputStream(out);
        dataOut.writeLong(uuid.getMostSignificantBits());
        dataOut.writeLong(uuid.getLeastSignificantBits());
        dataOut.close();
        return new String(Hex.encodeHex(out.toByteArray()));
    } catch (Exception e) {
        return uuid.toString();
    }
}

From source file:net.geertvos.theater.core.util.UUIDGen.java

/** decomposes a uuid into raw bytes. */
public static byte[] decompose(UUID uuid) {
    long most = uuid.getMostSignificantBits();
    long least = uuid.getLeastSignificantBits();
    byte[] b = new byte[16];
    for (int i = 0; i < 8; i++) {
        b[i] = (byte) (most >>> ((7 - i) * 8));
        b[8 + i] = (byte) (least >>> ((7 - i) * 8));
    }/*from  ww w .  ja v a 2  s.c o m*/
    return b;
}

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

/**
 * Generate UUID across the entire app and it is used for correlationId.
 *
 * @return String correlationId//from   www.  j  a  va2s.  c om
 */
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:net.geertvos.theater.core.util.UUIDGen.java

/** writes a uuid to an output stream. */
public static void write(UUID uuid, DataOutput dos) throws IOException {
    dos.writeLong(uuid.getMostSignificantBits());
    dos.writeLong(uuid.getLeastSignificantBits());
}

From source file:Main.java

/**
 * Check whether the given parcelUuid can be converted to 32 bit bluetooth uuid.
 *
 * @param parcelUuid// ww w  . jav a2  s  .c om
 * @return true if the parcelUuid can be converted to 32 bit uuid, false otherwise.
 */
public static boolean is32BitUuid(ParcelUuid parcelUuid) {
    UUID uuid = parcelUuid.getUuid();
    if (uuid.getLeastSignificantBits() != BASE_UUID.getUuid().getLeastSignificantBits()) {
        return false;
    }
    if (is16BitUuid(parcelUuid)) {
        return false;
    }
    return ((uuid.getMostSignificantBits() & 0xFFFFFFFFL) == 0x1000L);
}

From source file:org.zper.ZPUtils.java

synchronized public static byte[] genTopicIdentity(String topic, int flag) {
    byte[] identity = new byte[1 + 2 + topic.length() + 16];
    ByteBuffer buf = ByteBuffer.wrap(identity);
    UUID uuid = UUID.randomUUID();

    buf.put((byte) topic.hashCode());
    buf.put((byte) flag);
    buf.put((byte) topic.length());
    buf.put(topic.getBytes());//from   w ww .j a  v  a 2s .c  om
    buf.putLong(uuid.getMostSignificantBits());
    buf.putLong(uuid.getLeastSignificantBits());

    return identity;
}

From source file:com.scf.utils.UUIDUtilies.java

protected static String base64Uuid(UUID uuid) {

    ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
    bb.putLong(uuid.getMostSignificantBits());
    bb.putLong(uuid.getLeastSignificantBits());

    return Base64.encodeBase64URLSafeString(bb.array());
}

From source file:com.scf.utils.UUIDUtilies.java

protected static String base58Uuid(UUID uuid) {

    ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
    bb.putLong(uuid.getMostSignificantBits());
    bb.putLong(uuid.getLeastSignificantBits());

    return Base58.encode(bb.array());
}