Example usage for java.nio ByteBuffer duplicate

Introduction

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

Prototype

public abstract ByteBuffer duplicate();

Source Link

Document

Returns a duplicated buffer that shares its content with this buffer.

Usage

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ByteBuffer bbuf = ByteBuffer.allocate(10);
    int capacity = bbuf.capacity(); // 10
    System.out.println(capacity);
    bbuf.putShort(2, (short) 123);

    ByteBuffer bb = bbuf.duplicate();

    System.out.println(bb.equals(bb));
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ByteBuffer bbuf = ByteBuffer.allocate(10);
    int capacity = bbuf.capacity(); // 10
    System.out.println(capacity);
    bbuf.putShort(2, (short) 123);

    ByteBuffer bb = bbuf.duplicate();

    System.out.println(bb.compareTo(bb));
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ByteBuffer bbuf = ByteBuffer.allocate(10);
    int capacity = bbuf.capacity(); // 10
    System.out.println(capacity);
    bbuf.putShort(2, (short) 123);

    ByteBuffer bb = bbuf.duplicate();

    System.out.println(Arrays.toString(bb.array()));
}

From source file:Main.java

public static byte[] array(ByteBuffer byteBuffer) {
    ByteBuffer byteBuffer2 = byteBuffer.duplicate();
    byte[] arrby = new byte[byteBuffer2.limit()];
    byteBuffer2.rewind();/* w  w  w.  ja  va  2  s.co  m*/
    byteBuffer2.get(arrby);
    return arrby;
}

From source file:Main.java

/**
 * @param buffer/*w ww.j a v  a2s  .  c o m*/
 * @return
 */
public static ByteBuffer duplicate(ByteBuffer buffer) {
    final ByteBuffer r = buffer.duplicate();
    r.order(buffer.order());

    return r;
}

From source file:Main.java

static void memcpy(ByteBuffer dstBuffer, int dstByteOffset, ByteBuffer srcBuffer, int srcByteOffset,
        int length) {
    ByteBuffer dstDup = dstBuffer.duplicate();
    dstDup.position(dstByteOffset);// w  w  w  .  j  a v a 2  s.  com
    dstDup.limit(dstByteOffset + length);
    ByteBuffer srcDup = srcBuffer.duplicate();
    srcDup.position(srcByteOffset);
    srcDup.limit(srcByteOffset + length);
    dstDup.put(srcDup);
}

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

public static byte[] hash(ByteBuffer... data) {
    for (ByteBuffer block : data) {
        digester.update(block.duplicate());
    }/*from   w ww .  j a va2s.c  o  m*/

    return digester.digest();
}

From source file:com.linkedin.databus.core.util.StringUtils.java

/**
 * Dumps as a hex string the contents of a buffer around a position
 * @param buf     the ByteBuffer to dump
 * @param bufOfs  starting offset in the buffer
 * @param length  the number of bytes to print
 * @return the hexstring//  w w w  .j  a  v a  2s .co  m
 */
public static String hexdumpByteBufferContents(ByteBuffer buf, int bufOfs, int length) {
    if (length < 0) {
        return "";
    }

    final int endOfs = Math.min(buf.limit(), bufOfs + length + 1);
    final byte[] bytes = new byte[endOfs - bufOfs];

    buf = buf.duplicate();
    buf.position(bufOfs);
    buf.get(bytes);
    return new String(Hex.encodeHex(bytes));
}

From source file:com.datatorrent.stram.LaunchContainerRunnable.java

public static ByteBuffer getTokens(UserGroupInformation ugi,
        Token<StramDelegationTokenIdentifier> delegationToken) {
    try {/*from w ww.  j  a v a 2s . c o  m*/
        Collection<Token<? extends TokenIdentifier>> tokens = ugi.getCredentials().getAllTokens();
        Credentials credentials = new Credentials();
        for (Token<? extends TokenIdentifier> token : tokens) {
            if (!token.getKind().equals(AMRMTokenIdentifier.KIND_NAME)) {
                credentials.addToken(token.getService(), token);
                LOG.debug("Passing container token {}", token);
            }
        }
        credentials.addToken(delegationToken.getService(), delegationToken);
        DataOutputBuffer dataOutput = new DataOutputBuffer();
        credentials.writeTokenStorageToStream(dataOutput);
        byte[] tokenBytes = dataOutput.getData();
        ByteBuffer cTokenBuf = ByteBuffer.wrap(tokenBytes);
        return cTokenBuf.duplicate();
    } catch (IOException e) {
        throw new RuntimeException("Error generating delegation token", e);
    }
}

From source file:com.icloud.framework.core.util.FBUtilities.java

public static String decodeToUTF8(ByteBuffer bytes) throws CharacterCodingException {
    bytes = bytes.duplicate();
    String decoded = Charsets.UTF_8.newDecoder().decode(bytes).toString();
    return decoded;
}