Example usage for java.nio ByteBuffer array

Introduction

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

Prototype

public final byte[] array() 

Source Link

Document

Returns the byte array which this buffer is based on, if there is one.

Usage

From source file:com.openteach.diamond.network.waverider.slave.SlaveState.java

public static SlaveState fromByteBuffer(ByteBuffer buffer) {
    ByteArrayInputStream bin = null;
    ObjectInputStream oin = null;
    try {/*from w ww.j ava  2  s . co m*/
        bin = new ByteArrayInputStream(buffer.array(), Packet.getHeaderSize() + Command.getHeaderSize(),
                buffer.remaining());
        oin = new ObjectInputStream(bin);
        return (SlaveState) oin.readObject();
    } catch (IOException e) {
        logger.error(e);
        throw new RuntimeException(e);
    } catch (ClassNotFoundException e) {
        logger.error(e);
        throw new RuntimeException(e);
    } finally {
        if (oin != null) {
            try {
                oin.close();
            } catch (IOException e) {
                logger.error(e);
            }
        }
    }
}

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From source file:Main.java

public static byte[] toByteArrayNew(Bitmap source) {
    //int size = source.getRowBytes() * source.getHeight();
    int size = source.getByteCount();
    ByteBuffer byteBuffer = ByteBuffer.allocate(size);
    source.copyPixelsToBuffer(byteBuffer);
    byteBuffer.rewind();/*from   w  w w. j av  a 2  s . c  om*/
    byte[] b = byteBuffer.array();
    return b;
}

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From source file:com.glaf.core.util.BinaryUtils.java

/**
 * Returns a copy of all the bytes from the given <code>ByteBuffer</code>,
 * from the beginning to the buffer's limit; or null if the input is null.
 * <p>//  ww  w. j av a 2s  .  c o m
 * The internal states of the given byte buffer will be restored when this
 * method completes execution.
 * <p>
 * When handling <code>ByteBuffer</code> from user's input, it's typical to
 * call the {@link #copyBytesFrom(ByteBuffer)} instead of
 * {@link #copyAllBytesFrom(ByteBuffer)} so as to account for the position
 * of the input <code>ByteBuffer</code>. The opposite is typically true,
 * however, when handling <code>ByteBuffer</code> from withint the
 * unmarshallers of the low-level clients.
 */
public static byte[] copyAllBytesFrom(ByteBuffer bb) {
    if (bb == null)
        return null;
    if (bb.hasArray())
        return Arrays.copyOf(bb.array(), bb.limit());
    bb.mark();
    // the default ByteBuffer#mark() and reset() won't work, as the
    // rewind would discard the mark position
    final int marked = bb.position();
    try {
        byte[] dst = new byte[bb.rewind().remaining()];
        bb.get(dst);
        return dst;
    } finally {
        bb.position(marked);
    }
}

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From source file:com.glaf.core.util.BinaryUtils.java

/**
 * Returns a copy of the bytes from the given <code>ByteBuffer</code>,
 * ranging from the the buffer's current position to the buffer's limit; or
 * null if the input is null./* w ww. j  a v a 2s  . c o m*/
 * <p>
 * The internal states of the given byte buffer will be restored when this
 * method completes execution.
 * <p>
 * When handling <code>ByteBuffer</code> from user's input, it's typical to
 * call the {@link #copyBytesFrom(ByteBuffer)} instead of
 * {@link #copyAllBytesFrom(ByteBuffer)} so as to account for the position
 * of the input <code>ByteBuffer</code>. The opposite is typically true,
 * however, when handling <code>ByteBuffer</code> from withint the
 * unmarshallers of the low-level clients.
 */
public static byte[] copyBytesFrom(ByteBuffer bb) {
    if (bb == null)
        return null;
    if (bb.hasArray())
        return Arrays.copyOfRange(bb.array(), bb.position(), bb.limit());
    bb.mark();
    try {
        byte[] dst = new byte[bb.remaining()];
        bb.get(dst);
        return dst;
    } finally {
        bb.reset();
    }
}

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From source file:com.nestedbird.util.UUIDConverter.java

/**
 * Turns a UUID in string format to a Base64 encoded version
 *
 * @param uuidString String representation of the uuid
 * @return base64 encoded version of the uuid
 * @throws IllegalArgumentException String must be a valid uuid
 * @throws NullPointerException     String cannot be null
 *//* ww  w .  ja  v  a 2 s.  c  o m*/
public static String toBase64(final String uuidString) {
    if (uuidString == null)
        throw new NullPointerException("String cannot be null");
    if (!isUUID(uuidString))
        throw new IllegalArgumentException("string must be a valid uuid");

    final UUID uuid = UUID.fromString(uuidString);
    final ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
    bb.putLong(uuid.getMostSignificantBits());
    bb.putLong(uuid.getLeastSignificantBits());
    return Base64.encodeBase64URLSafeString(bb.array());
}

---

From source file:Main.java

public static String readString(String filePath) {
    File file = new File(filePath);
    if (!file.exists())
        return null;

    FileInputStream fileInput = null;
    FileChannel channel = null;//  www .  j av a  2s .  com
    try {
        fileInput = new FileInputStream(filePath);
        channel = fileInput.getChannel();
        ByteBuffer buffer = ByteBuffer.allocate((int) channel.size());
        channel.read(buffer);

        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        byteArrayOutputStream.write(buffer.array());
        return byteArrayOutputStream.toString();
    } catch (Exception e) {
    } finally {

        if (fileInput != null) {
            try {
                fileInput.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        if (channel != null) {
            try {
                channel.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    return null;
}

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From source file:Main.java

public static List<ByteBuffer> mergeAdjacentBuffers(List<ByteBuffer> paramList) {
    ArrayList localArrayList = new ArrayList(paramList.size());
    Iterator localIterator = paramList.iterator();
    while (localIterator.hasNext()) {
        ByteBuffer localByteBuffer1 = (ByteBuffer) localIterator.next();
        int i = -1 + localArrayList.size();
        if ((i >= 0) && (localByteBuffer1.hasArray()) && (((ByteBuffer) localArrayList.get(i)).hasArray())
                && (localByteBuffer1.array() == ((ByteBuffer) localArrayList.get(i)).array())
                && (((ByteBuffer) localArrayList.get(i)).arrayOffset()
                        + ((ByteBuffer) localArrayList.get(i)).limit() == localByteBuffer1.arrayOffset())) {
            ByteBuffer localByteBuffer3 = (ByteBuffer) localArrayList.remove(i);
            localArrayList.add(ByteBuffer.wrap(localByteBuffer1.array(), localByteBuffer3.arrayOffset(),
                    localByteBuffer3.limit() + localByteBuffer1.limit()).slice());
        } else if ((i >= 0) && ((localByteBuffer1 instanceof MappedByteBuffer))
                && ((localArrayList.get(i) instanceof MappedByteBuffer))
                && (((ByteBuffer) localArrayList.get(i))
                        .limit() == ((ByteBuffer) localArrayList.get(i)).capacity()
                                - localByteBuffer1.capacity())) {
            ByteBuffer localByteBuffer2 = (ByteBuffer) localArrayList.get(i);
            localByteBuffer2.limit(localByteBuffer1.limit() + localByteBuffer2.limit());
        } else {//from   ww  w. j a va2  s  .c  o m
            localByteBuffer1.reset();
            localArrayList.add(localByteBuffer1);
        }
    }
    return localArrayList;
}

---

From source file:com.cnaude.mutemanager.UUIDFetcher.java

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

---

From source file:cn.ctyun.amazonaws.util.StringUtils.java

/**
 * Base64 encodes the data in the specified byte buffer and returns it as a
 * base64 encoded string./*from   www  .  j  a  v a  2  s.c o m*/
 *
 * @param byteBuffer
 *            The data to base64 encode and return as a string.
 *
 * @return The base64 encoded contents of the specified byte buffer.
 */
public static String fromByteBuffer(ByteBuffer byteBuffer) {
    byte[] encodedBytes = null;
    if (byteBuffer.hasArray()) {
        encodedBytes = Base64.encodeBase64(byteBuffer.array());
    } else {
        byte[] binaryData = new byte[byteBuffer.limit()];
        byteBuffer.get(binaryData);
        encodedBytes = Base64.encodeBase64(binaryData);
    }
    return new String(encodedBytes);
}

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From source file:com.willetinc.hadoop.mapreduce.dynamodb.AttributeValueIOUtils.java

public static void write(Types type, AttributeValue value, DataOutput out) throws IOException {
    switch (type) {
    case STRING://  w  w  w. j a  v a2s  .com
        Text.writeString(out, value.getS());
        break;
    case NUMBER:
        Text.writeString(out, value.getN());
        break;
    case BINARY: {
        WritableUtils.writeCompressedByteArray(out, value.getB().array());
        break;
    }
    case STRING_SET: {
        List<String> values = value.getSS();
        out.writeInt(values.size());
        for (String s : values) {
            Text.writeString(out, s);
        }
        break;
    }
    case NUMBER_SET: {
        List<String> values = value.getNS();
        out.writeInt(values.size());
        for (String s : values) {
            Text.writeString(out, s);
        }
        break;
    }
    case BINARY_SET: {
        List<ByteBuffer> values = value.getBS();
        out.writeInt(values.size());
        for (ByteBuffer buf : values) {
            WritableUtils.writeCompressedByteArray(out, buf.array());
        }
    }
    }
}

---

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