Example usage for java.nio ByteBuffer getShort

Introduction

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

Prototype

public abstract short getShort(int index);

Source Link

Document

Returns the short at the specified index.

Usage

From source file:com.microsoft.sqlserver.jdbc.SQLServerColumnEncryptionAzureKeyVaultProvider.java

private short convertTwoBytesToShort(byte[] input, int index) throws SQLServerException {

    short shortVal = -1;
    if (index + 1 >= input.length) {
        throw new SQLServerException(null, SQLServerException.getErrString("R_ByteToShortConversion"), null, 0,
                false);/* w w  w  . j  a v a 2  s  . c o m*/
    }
    ByteBuffer byteBuffer = ByteBuffer.allocate(2);
    byteBuffer.order(ByteOrder.LITTLE_ENDIAN);
    byteBuffer.put(input[index]);
    byteBuffer.put(input[index + 1]);
    shortVal = byteBuffer.getShort(0);
    return shortVal;

}

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From source file:com.nordicsemi.nrfUARTv2.MainActivity.java

private short bytesToShort(byte b1, byte b2) {
    ByteBuffer bb = ByteBuffer.allocate(2);
    bb.order(ByteOrder.LITTLE_ENDIAN);
    bb.put(b1);//from  w w w .  j av a 2  s  . c  om
    bb.put(b2);
    short shortVal = bb.getShort(0);
    return shortVal;
}

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From source file:ar.com.qbe.siniestros.model.utils.MimeMagic.MagicMatcher.java

/**
 * convert a byte array to a short/* w ww .j a v  a2 s. c  om*/
 *
 * @param data buffer of byte data
 *
 * @return byte array converted to a short
 */
private short byteArrayToShort(ByteBuffer data) {
    return data.getShort(0);
}

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From source file:com.healthmarketscience.jackcess.impl.ColumnImpl.java

/**
 * Reads the column cade page info from the given buffer, if supported for
 * this db.//  w  w w  .j  av  a2  s.c o m
 */
static short readCodePage(ByteBuffer buffer, int offset, JetFormat format) {
    int cpOffset = format.OFFSET_COLUMN_CODE_PAGE;
    return ((cpOffset >= 0) ? buffer.getShort(offset + cpOffset) : 0);
}

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From source file:edu.mbl.jif.imaging.mmtiff.MultipageTiffReader.java

private long readHeader() throws IOException {
    ByteBuffer tiffHeader = ByteBuffer.allocate(8);
    fileChannel_.read(tiffHeader, 0);/*w  w w  . java  2s . co  m*/
    char zeroOne = tiffHeader.getChar(0);
    if (zeroOne == 0x4949) {
        byteOrder_ = ByteOrder.LITTLE_ENDIAN;
    } else if (zeroOne == 0x4d4d) {
        byteOrder_ = ByteOrder.BIG_ENDIAN;
    } else {
        throw new IOException("Error reading Tiff header");
    }
    tiffHeader.order(byteOrder_);
    short twoThree = tiffHeader.getShort(2);
    if (twoThree != 42) {
        throw new IOException("Tiff identifier code incorrect");
    }
    return unsignInt(tiffHeader.getInt(4));
}

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From source file:guru.benson.pinch.Pinch.java

/**
 * Get a {@link java.net.HttpURLConnection} that has its {@link java.io.InputStream} pointing at
 * the file data of the given {@link guru.benson.pinch.ExtendedZipEntry}.
 *
 * @throws IOException// ww w. j  a  v a  2  s .c om
 */
private HttpURLConnection getEntryInputStream(ExtendedZipEntry entry) throws IOException {
    HttpURLConnection conn;
    InputStream is;

    // Define the local header range
    long start = entry.getOffset();
    long end = start + ZipConstants.LOCHDR;

    conn = openConnection();
    conn.setRequestProperty("Range", "bytes=" + start + "-" + end);
    conn.setInstanceFollowRedirects(true);
    conn.connect();

    int responseCode = conn.getResponseCode();
    if (responseCode != HttpURLConnection.HTTP_PARTIAL) {
        throw new IOException("Unexpected HTTP server response: " + responseCode);
    }

    byte[] dataBuffer = new byte[2048];
    int read, bytes = 0;

    is = conn.getInputStream();
    while ((read = is.read(dataBuffer)) != -1) {
        bytes += read;
    }
    close(is);
    disconnect(conn);
    if (bytes < ZipConstants.LOCHDR) {
        throw new IOException("Unable to fetch the local header");
    }

    ByteBuffer buffer = ByteBuffer.allocate(ZipConstants.LOCHDR);
    buffer.order(ByteOrder.LITTLE_ENDIAN);
    buffer.put(dataBuffer, 0, ZipConstants.LOCHDR);

    final int headerSignature = buffer.getInt(0);
    if (headerSignature != 0x04034b50) {
        disconnect(conn);
        throw new IOException("Local file header signature mismatch");
    }

    final int localCompressedSize = buffer.getInt(ZipConstants.LOCSIZ);
    final short localFileNameLength = buffer.getShort(ZipConstants.LOCNAM);
    final short localExtraLength = buffer.getShort(ZipConstants.LOCEXT);

    // Define the local file range
    start = entry.getOffset() + ZipConstants.LOCHDR + localFileNameLength + localExtraLength;
    end = start + localCompressedSize;

    // Open a new one with
    conn = openConnection();
    conn.setRequestProperty("Range", "bytes=" + start + "-" + end);
    conn.setInstanceFollowRedirects(true);
    conn.connect();

    responseCode = conn.getResponseCode();
    if (responseCode != HttpURLConnection.HTTP_PARTIAL) {
        disconnect(conn);
        close(is);
        throw new IOException("Unexpected HTTP server response: " + responseCode);
    }

    return conn;
}

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From source file:spade.reporter.CDM.java

/**
 * Return null if null arguments//from   w w  w .  ja  va  2s  . c o  m
 * 
 * @param permission
 * @return null/Octal representation of permissions
 */
private String getPermissionSHORTAsString(SHORT permission) {
    if (permission == null) {
        return null;
    } else {
        ByteBuffer bb = ByteBuffer.allocate(2);
        bb.put(permission.bytes()[0]);
        bb.put(permission.bytes()[1]);
        int permissionShort = bb.getShort(0);
        return Integer.toOctalString(permissionShort);
    }
}

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From source file:com.offbynull.portmapper.natpmp.NatPmpReceiver.java

/**
 * Start listening for NAT-PMP events. This method blocks until {@link #stop() } is called.
 * @param listener listener to notify of events
 * @throws IOException if socket error occurs
 * @throws NullPointerException if any argument is {@code null}
 *//*  w  w  w.j  a v a2  s  . com*/
public void start(NatPmpEventListener listener) throws IOException {
    Validate.notNull(listener);

    MulticastSocket socket = null;
    try {
        final InetAddress group = InetAddress.getByName("224.0.0.1"); // NOPMD
        final int port = 5350;
        final InetSocketAddress groupAddress = new InetSocketAddress(group, port);

        socket = new MulticastSocket(port);

        if (!currentSocket.compareAndSet(null, socket)) {
            IOUtils.closeQuietly(socket);
            return;
        }

        socket.setReuseAddress(true);

        Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
        while (interfaces.hasMoreElements()) {
            NetworkInterface networkInterface = interfaces.nextElement();
            Enumeration<InetAddress> addrs = networkInterface.getInetAddresses();
            while (addrs.hasMoreElements()) { // make sure atleast 1 ipv4 addr bound to interface
                InetAddress addr = addrs.nextElement();

                try {
                    if (addr instanceof Inet4Address) {
                        socket.joinGroup(groupAddress, networkInterface);
                    }
                } catch (IOException ioe) { // NOPMD
                    // occurs with certain interfaces
                    // do nothing
                }
            }
        }

        ByteBuffer buffer = ByteBuffer.allocate(12);
        DatagramPacket data = new DatagramPacket(buffer.array(), buffer.capacity());

        while (true) {
            buffer.clear();
            socket.receive(data);
            buffer.position(data.getLength());
            buffer.flip();

            if (!data.getAddress().equals(gatewayAddress)) { // data isn't from our gateway, ignore
                continue;
            }

            if (buffer.remaining() != 12) { // data isn't the expected size, ignore
                continue;
            }

            int version = buffer.get(0);
            if (version != 0) { // data doesn't have the correct version, ignore
                continue;
            }

            int opcode = buffer.get(1) & 0xFF;
            if (opcode != 128) { // data doesn't have the correct op, ignore
                continue;
            }

            int resultCode = buffer.getShort(2) & 0xFFFF;
            switch (resultCode) {
            case 0:
                break;
            default:
                continue; // data doesn't have a successful result, ignore
            }

            listener.publicAddressUpdated(new ExternalAddressNatPmpResponse(buffer));
        }

    } catch (IOException ioe) {
        if (currentSocket.get() == null) {
            return; // ioexception caused by interruption/stop, so just return without propogating error up
        }

        throw ioe;
    } finally {
        IOUtils.closeQuietly(socket);
        currentSocket.set(null);
    }
}

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From source file:com.healthmarketscience.jackcess.Column.java

/**
 * Reads the sort order info from the given buffer from the given position.
 *//*from   w  w  w.j  a  v a2 s  . c om*/
static SortOrder readSortOrder(ByteBuffer buffer, int position, JetFormat format) {
    short value = buffer.getShort(position);
    byte version = 0;
    if (format.SIZE_SORT_ORDER == 4) {
        version = buffer.get(position + 3);
    }

    if (value == 0) {
        // probably a file we wrote, before handling sort order
        return format.DEFAULT_SORT_ORDER;
    }

    if (value == GENERAL_SORT_ORDER_VALUE) {
        if (version == GENERAL_LEGACY_SORT_ORDER.getVersion()) {
            return GENERAL_LEGACY_SORT_ORDER;
        }
        if (version == GENERAL_SORT_ORDER.getVersion()) {
            return GENERAL_SORT_ORDER;
        }
    }
    return new SortOrder(value, version);
}

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From source file:com.healthmarketscience.jackcess.Table.java

/**
 * Returns the row count for the current page.  If the page is invalid
 * ({@code null}) or the page is not a DATA page, 0 is returned.
 */// ww w  .j ava2s.c o m
private static int getRowsOnDataPage(ByteBuffer rowBuffer, JetFormat format) throws IOException {
    int rowsOnPage = 0;
    if ((rowBuffer != null) && (rowBuffer.get(0) == PageTypes.DATA)) {
        rowsOnPage = rowBuffer.getShort(format.OFFSET_NUM_ROWS_ON_DATA_PAGE);
    }
    return rowsOnPage;
}

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