Example usage for java.nio ByteBuffer wrap

Introduction

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

Prototype

public static ByteBuffer wrap(byte[] array)

Source Link

Document

Creates a new byte buffer by wrapping the given byte array.

Usage

From source file:com.icloud.framework.core.nio.ByteBufferUtil.java

public static ByteBuffer clone(ByteBuffer o) {
    assert o != null;

    if (o.remaining() == 0)
        return ByteBuffer.wrap(ArrayUtils.EMPTY_BYTE_ARRAY);

    ByteBuffer clone = ByteBuffer.allocate(o.remaining());

    if (o.isDirect()) {
        for (int i = o.position(); i < o.limit(); i++) {
            clone.put(o.get(i));//from   w w  w.j  ava  2  s.  co m
        }
        clone.flip();
    } else {
        System.arraycopy(o.array(), o.arrayOffset() + o.position(), clone.array(), 0, o.remaining());
    }

    return clone;
}

From source file:io.druid.segment.writeout.WriteOutBytesTest.java

@Test
public void testWriteOutBytes() throws IOException {
    WriteOutBytes writeOutBytes = segmentWriteOutMedium.makeWriteOutBytes();

    writeOutBytes.write('1');
    verifyContents(writeOutBytes, "1");

    writeOutBytes.writeInt(Ints.fromBytes((byte) '2', (byte) '3', (byte) '4', (byte) '5'));
    verifyContents(writeOutBytes, "12345");

    writeOutBytes.write(new byte[] { 'a' });
    verifyContents(writeOutBytes, "12345a");

    writeOutBytes.write(new byte[] { 'a', 'b', 'c' }, 1, 1);
    verifyContents(writeOutBytes, "12345ab");

    ByteBuffer bb = ByteBuffer.wrap(new byte[] { 'a', 'b', 'c' });
    bb.position(2);//w ww  .  j  a  va  2s  .  c o  m
    writeOutBytes.write(bb);
    Assert.assertEquals(3, bb.position());
    verifyContents(writeOutBytes, "12345abc");
}

From source file:ezbake.services.graph.archive.TransactionIdGenerator.java

public TransactionIdGenerator(String interfaceName) {
    ByteBuffer buf = ByteBuffer.wrap(getMacAddress(interfaceName));
    serverId = buf.getInt();
    lastTime = -1L;
    sequence = 0;
}

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

/**
 * Deserialize a {@link Binary} value as a {@link RandomData} value.
 * @param binary The {@link Binary} value
 * @return The {@link RandomData} value//from   w ww .  j  av a2s .  co m
 */
static RandomData fromBinary(Binary binary) {
    final ByteBuffer buffer = ByteBuffer.wrap(binary.toByteArray());
    final int id = buffer.getInt();
    final long timestamp = buffer.getLong();
    final int randomInt = buffer.getInt();
    return new RandomData(id, timestamp, randomInt);
}

From source file:com.silverpeas.ical.StringUtils.java

static char[] decodeToArray(byte[] bytes, Charset encoding) {
    if (CharEncoding.US_ASCII.equals(encoding.name())) {
        char[] array = new char[bytes.length];
        for (int i = 0; i < array.length; i++) {
            array[i] = (char) bytes[i];
        }//from  ww w . j a v a2  s  . co m
        return array;
    }
    try {
        CharBuffer buffer = encoding.newDecoder().decode(ByteBuffer.wrap(bytes));
        char[] array = new char[buffer.limit()];
        System.arraycopy(buffer.array(), 0, array, 0, array.length);
        return array;
    } catch (Exception nioException) {
        return (new String(bytes, encoding)).toCharArray();
    }
}

From source file:rx.apache.http.consumers.ResponseConsumerChunked.java

@Override
protected final void onContentReceived(final ContentDecoder decoder, final IOControl ioctrl)
        throws IOException {
    if (parentSubscription.isUnsubscribed()) {
        ioctrl.shutdown();/*from  ww  w.  j a  v a  2  s. c o  m*/
    }

    byte[] data;
    data = new byte[BUFFER_SIZE];

    final int bytesRead;
    bytesRead = decoder.read(ByteBuffer.wrap(data));

    if (bytesRead > 0) {
        if (bytesRead == data.length) {
            contentSubject.onNext(data);

        } else {
            byte[] subset;
            subset = new byte[bytesRead];
            System.arraycopy(data, 0, subset, 0, bytesRead);

            contentSubject.onNext(subset);

        }

    }

    if (decoder.isCompleted()) {
        contentSubject.onCompleted();
    }
}

From source file:net.sf.jml.message.p2p.MsnP2PMessage.java

@Override
protected void parseMessage(byte[] message) {
    ByteBuffer split = Charset.encode(JmlConstants.LINE_SEPARATOR + JmlConstants.LINE_SEPARATOR);
    int pos = ByteBufferUtils.indexOf(ByteBuffer.wrap(message), split);

    // header// w ww.j a v a 2  s  .co m
    String header = pos == -1 ? Charset.decode(message) : Charset.decode(message, 0, pos);
    headers.parseString(header);

    // binaryHeader
    pos += split.remaining();
    binaryHeader.put(message, pos, BINARY_HEADER_LEN);
    binaryHeader.flip();

    // body
    pos += BINARY_HEADER_LEN;
    parseP2PBody(ByteBuffer.wrap(message, pos, message.length - pos - BINARY_FOOTER_LEN));

    // binaryFoot
    binaryFooter.put(message, message.length - BINARY_FOOTER_LEN, BINARY_FOOTER_LEN);
    binaryFooter.flip();
}

From source file:com.rackspacecloud.blueflood.io.serializers.HistogramSerializationTest.java

@Test
public void testSerializationDeserializationVersion1() throws Exception {
    if (System.getProperty("GENERATE_HIST_SERIALIZATION") != null) {
        OutputStream os = new FileOutputStream(
                "src/test/resources/serializations/histogram_version_" + Constants.VERSION_1_HISTOGRAM + ".bin",
                false);/*from ww  w. j av a 2 s.c  om*/

        os.write(Base64.encodeBase64(HistogramSerializer.get().toByteBuffer(histogramRollup).array()));
        os.write("\n".getBytes());
        os.close();
    }

    Assert.assertTrue(new File("src/test/resources/serializations").exists());

    // ensure we can read historical serializations.
    int version = 0;
    int maxVersion = Constants.VERSION_1_HISTOGRAM;
    while (version <= maxVersion) {
        BufferedReader reader = new BufferedReader(
                new FileReader("src/test/resources/serializations/histogram_version_" + version + ".bin"));
        ByteBuffer bb = ByteBuffer.wrap(Base64.decodeBase64(reader.readLine().getBytes()));
        HistogramRollup histogramRollupDes = HistogramSerializer.get().fromByteBuffer(bb);
        Assert.assertTrue(areHistogramsEqual(histogramRollup, histogramRollupDes));
        version++;
    }
}

From source file:com.tongbanjie.tarzan.rpc.protocol.RpcCommand.java

public static RpcCommand decode(final byte[] array) {
    ByteBuffer byteBuffer = ByteBuffer.wrap(array);
    return decode(byteBuffer);
}

From source file:de.brendamour.jpasskit.signing.PKPassTemplateInMemory.java

@Override
public Map<String, ByteBuffer> getAllFiles() throws IOException {
    Map<String, ByteBuffer> allFiles = new HashMap<>();
    for (Entry<String, InputStream> entry : files.entrySet()) {
        byte[] byteArray = IOUtils.toByteArray(entry.getValue());
        String filePath = entry.getKey();
        allFiles.put(filePath, ByteBuffer.wrap(byteArray));
    }/*ww w .  j  av a  2s  . c om*/
    return allFiles;
}