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.monitor.baseservice.utils.XCodeUtil.java

public static byte[] longToByteArray(long value) {
    ByteBuffer bb = ByteBuffer.allocate(Long.SIZE / Byte.SIZE);
    bb.order(ByteOrder.LITTLE_ENDIAN);
    bb.putLong(value);/*from w  w w. j a  va 2s.com*/
    return bb.array();
}

From source file:com.kentdisplays.synccardboarddemo.Page.java

/**
 * Decodes an input stream from a file into Path objects that can be used to draw the page.
 *///from   ww w  .j  a v  a2 s.  com
private static ArrayList<Path> pathsFromSamplePageInputStream(InputStream inputStream) {
    ArrayList<Path> paths = new ArrayList<Path>();
    try {
        // Retrieve a byte array from the sample page.
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        byte[] buffer = new byte[1024];
        int len;
        while ((len = inputStream.read(buffer)) > -1) {
            baos.write(buffer, 0, len);
        }
        baos.flush();
        byte[] byteArray = baos.toByteArray();

        // Decode the path data from the sample page.
        String rawString = EncodingUtils.getAsciiString(byteArray);
        int startIndex = rawString.indexOf("<</Length 13 0 R/Filter /FlateDecode>>") + 46;
        int endIndex = rawString.indexOf("endstream", startIndex) - 1;
        byte[] flateEncodedByteArray = Arrays.copyOfRange(byteArray, startIndex, endIndex);
        net.sf.andpdf.nio.ByteBuffer flateEncodedBuffer = net.sf.andpdf.nio.ByteBuffer
                .NEW(flateEncodedByteArray);
        net.sf.andpdf.nio.ByteBuffer decodedBuffer = FlateDecode.decode(null, flateEncodedBuffer, null);
        String decodedString = new String(decodedBuffer.array(), "UTF-8");

        // Break every line of the decoded string into usable objects.
        String[] stringArray = decodedString.split("\\r?\\n");
        for (int i = 0; i < stringArray.length; i++) {
            String[] components = stringArray[i].split(" ");
            Path path = new Path();
            path.y1 = Float.valueOf(components[2]);
            path.x1 = Float.valueOf(components[3]);
            path.y2 = Float.valueOf(components[5]);
            path.x2 = Float.valueOf(components[6]);
            path.width = Float.valueOf(components[0]);
            paths.add(path);
        }
    } catch (IOException e) {
        e.printStackTrace();
    }

    return paths;
}

From source file:com.bittorrent.mpetazzoni.bencode.BDecoder.java

/**
 * Decode a B-encoded byte buffer./*from w  w w.j  av a 2 s .c  om*/
 *
 * <p>
 * Automatically instantiates a new BDecoder for the provided buffer and
 * decodes its root member.
 * </p>
 *
 * @param data The {@link ByteBuffer} to read from.
 */
public static BEValue bdecode(ByteBuffer data) throws IOException {
    return BDecoder.bdecode(new AutoCloseInputStream(new ByteArrayInputStream(data.array())));
}

From source file:com.datatorrent.contrib.hdht.HDHTDynamicPartitioningTest.java

static Slice getLongByteArray(long key) {
    ByteBuffer bb = ByteBuffer.allocate(8);
    bb.putLong(key);/*from w  w  w . j  a va 2s  .  c  o  m*/
    return new Slice(bb.array());
}

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.liveramp.commons.util.BytesUtils.java

public static int compareBytesUnsigned(ByteBuffer a, ByteBuffer b) {
    if (a.remaining() != b.remaining()) {
        throw new RuntimeException(
                "Cannot compare ByteBuffers that have a different number of remaining elements.");
    }// ww w . j  a  v  a2 s . c  om
    return compareBytesUnsigned(a.array(), a.arrayOffset() + a.position(), b.array(),
            b.arrayOffset() + b.position(), a.remaining());
}

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

public static ByteBuffer readShortByteArray(DataInput in) throws IOException {
    int length = readShortLength(in);
    ByteBuffer bb = ByteBuffer.allocate(length);
    in.readFully(bb.array(), bb.position(), bb.remaining());
    return bb;/* w  ww . j av a 2s.c om*/
}

From source file:kilim.http.HttpRequest.java

public static int parseChunkSize(ByteBuffer buffer, int start, int end) throws IOException {
    byte[] bufa = buffer.array();
    int size = 0;
    for (int i = start; i < end; i++) {
        byte b = bufa[i];
        if (b >= b0 && b <= b9) {
            size = size * 16 + (b - b0);
        } else if (b >= ba && b <= bf) {
            size = size * 16 + ((b - ba) + 10);
        } else if (b >= bA && b <= bF) {
            size = size * 16 + ((b - bA) + 10);
        } else if (b == CR || b == SEMI) {
            // SEMI-colon starts a chunk extension. We ignore extensions currently.
            break;
        } else {/*w w  w  . j a v a2s . c om*/
            throw new IOException("Error parsing chunk size; unexpected char " + b + " at offset " + i);
        }
    }
    return size;
}

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

public static ByteBuffer readByteArray(DataInput in) throws IOException {
    int length = in.readInt();
    if (length < 0) {
        throw new IOException("Corrupt (negative) value length encountered");
    }//ww  w .  j av  a 2 s  . co  m

    ByteBuffer bb = ByteBuffer.allocate(length);
    if (length > 0) {
        in.readFully(bb.array(), bb.position(), bb.remaining());
    }
    return bb;
}

From source file:ec.edu.chyc.manejopersonal.util.ServerUtils.java

/***
 * Devuelve un UUID generado y codificado en Base64
 *
 * @return Uuid codificado en Base64/* w  w  w. j  a  v a 2 s. c  om*/
 */
public static String generateB64Uuid() {
    UUID uuid = UUID.randomUUID();
    ByteBuffer uuidBytes = ByteBuffer.wrap(new byte[16]);
    uuidBytes.putLong(uuid.getMostSignificantBits()).putLong(uuid.getLeastSignificantBits());
    String asB64 = Base64.getEncoder().encodeToString(uuidBytes.array());
    return asB64;
}