Example usage for java.nio ByteBuffer order

Introduction

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

Prototype

Endianness order

To view the source code for java.nio ByteBuffer order.

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Document

The byte order of this buffer, default is BIG_ENDIAN .

Usage

From source file:edu.umn.msi.tropix.proteomics.conversion.impl.ConversionUtils.java

public static double[] extractDoublesLittleEndian(final byte[] bytes, final boolean is64Bit) {
    double[] doubles;
    ByteBuffer byteBuffer = ByteBuffer.wrap(bytes);
    byteBuffer.order(ByteOrder.LITTLE_ENDIAN);
    if (is64Bit) {
        doubles = new double[bytes.length / 8];
        for (int i = 0; i < doubles.length; i++) {
            doubles[i] = byteBuffer.getDouble();
        }//w w w .  j  av  a  2s . c om
    } else {
        doubles = new double[bytes.length / 4];
        for (int i = 0; i < doubles.length; i++) {
            doubles[i] = byteBuffer.getFloat();
        }
    }
    return doubles;
}

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From source file:com.github.woz_dialog.ros_woz_dialog_project.TTSHTTPClient.java

private static byte[] addWavHeader(byte[] bytes) throws IOException {

    ByteBuffer bufferWithHeader = ByteBuffer.allocate(bytes.length + 44);
    bufferWithHeader.order(ByteOrder.LITTLE_ENDIAN);
    bufferWithHeader.put("RIFF".getBytes());
    bufferWithHeader.putInt(bytes.length + 36);
    bufferWithHeader.put("WAVE".getBytes());
    bufferWithHeader.put("fmt ".getBytes());
    bufferWithHeader.putInt(16);/*from  w w w.  ja  v a 2s. co m*/
    bufferWithHeader.putShort((short) 1);
    bufferWithHeader.putShort((short) 1);
    bufferWithHeader.putInt(16000);
    bufferWithHeader.putInt(32000);
    bufferWithHeader.putShort((short) 2);
    bufferWithHeader.putShort((short) 16);
    bufferWithHeader.put("data".getBytes());
    bufferWithHeader.putInt(bytes.length);
    bufferWithHeader.put(bytes);
    return bufferWithHeader.array();
}

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From source file:au.org.ala.layers.grid.GridCacheBuilder.java

private static void writeGroupGRI(File file, ArrayList<Grid> group) {
    Grid g = group.get(0);/* ww  w.  j  a  va 2 s. c  o m*/
    RandomAccessFile[] raf = new RandomAccessFile[group.size()];
    RandomAccessFile output = null;

    try {
        output = new RandomAccessFile(file, "rw");

        for (int i = 0; i < group.size(); i++) {
            raf[i] = new RandomAccessFile(group.get(i).filename + ".gri", "r");
        }

        int length = g.ncols * g.nrows;
        int size = 4;
        byte[] b = new byte[size * group.size() * g.ncols];
        float noDataValue = Float.MAX_VALUE * -1;

        byte[] bi = new byte[g.ncols * 8];
        float[][] rows = new float[group.size()][g.ncols];

        for (int i = 0; i < g.nrows; i++) {
            //read
            for (int j = 0; j < raf.length; j++) {
                nextRowOfFloats(rows[j], group.get(j).datatype, group.get(j).byteorderLSB, g.ncols, raf[j], bi,
                        (float) g.nodatavalue);
            }

            //write
            ByteBuffer bb = ByteBuffer.wrap(b);
            bb.order(ByteOrder.LITTLE_ENDIAN);

            for (int k = 0; k < g.ncols; k++) {
                for (int j = 0; j < raf.length; j++) {
                    //float f = getNextValue(raf[j], group.get(j));
                    float f = rows[j][k];
                    if (Float.isNaN(f)) {
                        bb.putFloat(noDataValue);
                    } else {
                        bb.putFloat(f);
                    }
                }
            }
            output.write(b);
        }
    } catch (IOException e) {
        logger.error(e.getMessage(), e);
    } finally {
        if (output != null) {
            try {
                output.close();
            } catch (Exception e) {
                logger.error(e.getMessage(), e);
            }
        }
        for (int i = 0; i < raf.length; i++) {
            if (raf[i] != null) {
                try {
                    raf[i].close();
                } catch (Exception e) {
                    logger.error(e.getMessage(), e);
                }
            }
        }
    }
}

---

From source file:au.org.ala.layers.grid.GridCacheBuilder.java

static void nextRowOfFloats(float[] row, String datatype, boolean byteOrderLSB, int ncols, RandomAccessFile raf,
        byte[] b, float noDataValue) throws IOException {
    int size = 4;
    if (datatype.charAt(0) == 'U') {
        size = 1;//from  w  ww. jav  a2s  .  c  om
    } else if (datatype.charAt(0) == 'B') {
        size = 1;
    } else if (datatype.charAt(0) == 'S') {
        size = 2;
    } else if (datatype.charAt(0) == 'I') {
        size = 4;
    } else if (datatype.charAt(0) == 'L') {
        size = 8;
    } else if (datatype.charAt(0) == 'F') {
        size = 4;
    } else if (datatype.charAt(0) == 'D') {
        size = 8;
    }

    raf.read(b, 0, size * ncols);
    ByteBuffer bb = ByteBuffer.wrap(b);
    if (byteOrderLSB) {
        bb.order(ByteOrder.LITTLE_ENDIAN);
    } else {
        bb.order(ByteOrder.BIG_ENDIAN);
    }

    int i;
    int length = ncols;
    if (datatype.charAt(0) == 'U') {
        for (i = 0; i < length; i++) {
            float ret = bb.get();
            if (ret < 0) {
                ret += 256;
            }
            row[i] = ret;
        }
    } else if (datatype.charAt(0) == 'B') {

        for (i = 0; i < length; i++) {
            row[i] = (float) bb.get();
        }
    } else if (datatype.charAt(0) == 'S') {
        for (i = 0; i < length; i++) {
            row[i] = (float) bb.getShort();
        }
    } else if (datatype.charAt(0) == 'I') {
        for (i = 0; i < length; i++) {
            row[i] = (float) bb.getInt();
        }
    } else if (datatype.charAt(0) == 'L') {
        for (i = 0; i < length; i++) {
            row[i] = (float) bb.getLong();
        }
    } else if (datatype.charAt(0) == 'F') {
        for (i = 0; i < length; i++) {
            row[i] = (float) bb.getFloat();
        }
    } else if (datatype.charAt(0) == 'D') {
        for (i = 0; i < length; i++) {
            row[i] = (float) bb.getDouble();
        }
    } else {
        logger.info("UNKNOWN TYPE: " + datatype);
    }

    for (i = 0; i < length; i++) {
        if (row[i] == noDataValue) {
            row[i] = Float.NaN;
        }
    }
}

---

From source file:org.energy_home.jemma.javagal.layers.data.implementations.Utils.DataManipulation.java

/**
 * Converts a {@code long} to a {@code byte[]}. A long is composed of eight
 * bytes. Writes eight bytes containing the given long value, in the current
 * byte order. Numbering them from 0 (the most important) to 7 (the least
 * important), the resulting array will have all them placed in the same
 * position./*from  w w  w .  ja  va  2 s .c  om*/
 * 
 * @return the converted list.
 * @param x
 *            the long to convert
 * @return the resulting array.
 */
public static byte[] longToBytes(long x) {
    ByteBuffer buffer = ByteBuffer.allocate(8);
    buffer.order(ByteOrder.BIG_ENDIAN);
    buffer.putLong(x);
    return buffer.array();
}

---

From source file:org.energy_home.jemma.javagal.layers.data.implementations.Utils.DataManipulation.java

/**
 * Converts an {@code int} to a {@code byte[]}. An int is composed of four
 * bytes. Writes four bytes containing the given int value, in the current
 * byte order. Numbering them from 0 (the most important) to 5 (the least
 * important), the resulting array will have all them placed in the same
 * position./*w ww.ja va 2  s  . co m*/
 * 
 * @param x
 *            the int to convert.
 * @return the resulting array.
 */
public static byte[] intToBytes(int x) {
    ByteBuffer buffer = ByteBuffer.allocate(4);
    buffer.order(ByteOrder.BIG_ENDIAN);
    buffer.putInt(x);
    return buffer.array();
}

---

From source file:au.org.ala.layers.grid.GridCacheBuilder.java

static public float getNextValue(RandomAccessFile raf, Grid g) {
    float f = Float.NaN;
    try {//from w  w  w.  j  ava2  s .  c o m
        int size;
        byte[] b;
        if (g.datatype.charAt(0) == 'B') {//"BYTE")) {
            f = raf.readByte();
        } else if (g.datatype.charAt(0) == 'U') {//equalsIgnoreCase("UBYTE")) {
            f = raf.readByte();
            if (f < 0) {
                f += 256;
            }
        } else if (g.datatype.charAt(0) == 'S') {//equalsIgnoreCase("SHORT")) {
            size = 2;
            b = new byte[size];
            raf.read(b);
            if (g.byteorderLSB) {
                f = (short) (((0xFF & b[1]) << 8) | (b[0] & 0xFF));
            } else {
                f = (short) (((0xFF & b[0]) << 8) | (b[1] & 0xFF));
            }
        } else if (g.datatype.charAt(0) == 'I') {//equalsIgnoreCase("INT")) {
            size = 4;
            b = new byte[size];
            raf.read(b);
            if (g.byteorderLSB) {
                f = ((0xFF & b[3]) << 24) | ((0xFF & b[2]) << 16) + ((0xFF & b[1]) << 8) + (b[0] & 0xFF);
            } else {
                f = ((0xFF & b[0]) << 24)
                        | ((0xFF & b[1]) << 16) + ((0xFF & b[2]) << 8) + ((0xFF & b[3]) & 0xFF);
            }
        } else if (g.datatype.charAt(0) == 'L') {//equalsIgnoreCase("LONG")) {
            size = 8;
            b = new byte[size];
            raf.read(b);
            if (g.byteorderLSB) {
                f = ((long) (0xFF & b[7]) << 56) + ((long) (0xFF & b[6]) << 48) + ((long) (0xFF & b[5]) << 40)
                        + ((long) (0xFF & b[4]) << 32) + ((long) (0xFF & b[3]) << 24)
                        + ((long) (0xFF & b[2]) << 16) + ((long) (0xFF & b[1]) << 8) + (0xFF & b[0]);
            } else {
                f = ((long) (0xFF & b[0]) << 56) + ((long) (0xFF & b[1]) << 48) + ((long) (0xFF & b[2]) << 40)
                        + ((long) (0xFF & b[3]) << 32) + ((long) (0xFF & b[4]) << 24)
                        + ((long) (0xFF & b[5]) << 16) + ((long) (0xFF & b[6]) << 8) + (0xFF & b[7]);
            }
        } else if (g.datatype.charAt(0) == 'F') {//.equalsIgnoreCase("FLOAT")) {
            size = 4;
            b = new byte[size];
            raf.read(b);
            ByteBuffer bb = ByteBuffer.wrap(b);
            if (g.byteorderLSB) {
                bb.order(ByteOrder.LITTLE_ENDIAN);
            }
            f = bb.getFloat();

        } else if (g.datatype.charAt(0) == 'D') {//.equalsIgnoreCase("DOUBLE")) {
            size = 8;
            b = new byte[8];
            raf.read(b);
            ByteBuffer bb = ByteBuffer.wrap(b);
            if (g.byteorderLSB) {
                bb.order(ByteOrder.LITTLE_ENDIAN);
            }
            f = (float) bb.getDouble();
        }
        //replace not a number            
        if ((float) f == (float) g.nodatavalue) {
            f = Float.NaN;
        }
    } catch (Exception e) {
    }
    return f;
}

---

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

/**
 * @return a duplicate of the current buffer narrowed to the given position
 *         and limit.  mark will be set at the current position.
 *//*from   w  w  w. jav a 2 s .c  om*/
public static ByteBuffer narrowBuffer(ByteBuffer buffer, int position, int limit) {
    return (ByteBuffer) buffer.duplicate().order(buffer.order()).clear().limit(limit).position(position).mark();
}

---

From source file:com.github.nlloyd.hornofmongo.util.BSONizer.java

@SuppressWarnings("deprecation")
private static Object convertScriptableMongoToBSON(ScriptableMongoObject jsMongoObj, boolean isJsObj,
        String dateFormat) {//from   ww  w  .  j  a v a2 s. co m
    Object bsonObject = null;
    if (jsMongoObj instanceof ObjectId) {
        bsonObject = ((ObjectId) jsMongoObj).getRealObjectId();
    } else if (jsMongoObj instanceof BinData) {
        BinData binData = (BinData) jsMongoObj;
        byte type = new Integer(binData.getType()).byteValue();
        byte[] data = binData.getDataBytes();
        if (type == BSON.B_UUID) {
            ByteBuffer dataBuffer = ByteBuffer.wrap(data);
            // mongodb wire protocol is little endian
            dataBuffer.order(ByteOrder.LITTLE_ENDIAN);
            long mostSigBits = dataBuffer.getLong();
            long leastSigBits = dataBuffer.getLong();
            bsonObject = new UUID(mostSigBits, leastSigBits);
        } else
            bsonObject = new org.bson.types.Binary(type, data);
    } else if (jsMongoObj instanceof MinKey) {
        bsonObject = new org.bson.types.MinKey();
    } else if (jsMongoObj instanceof MaxKey) {
        bsonObject = new org.bson.types.MaxKey();
    } else if (jsMongoObj instanceof NumberInt) {
        bsonObject = Integer.valueOf(((NumberInt) jsMongoObj).getRealInt());
    } else if (jsMongoObj instanceof NumberLong) {
        bsonObject = Long.valueOf(((NumberLong) jsMongoObj).getRealLong());
    } else if (jsMongoObj instanceof DBRef) {
        DBRef jsRef = (DBRef) jsMongoObj;
        Object id = convertJStoBSON(jsRef.getId(), isJsObj, dateFormat);
        bsonObject = new com.mongodb.DBRef(jsRef.getNs(), id);
    } else if (jsMongoObj instanceof Timestamp) {
        bsonObject = convertTimestampToBSONTimestamp((Timestamp) jsMongoObj);
    }
    return bsonObject;
}

---

From source file:org.cocos2dx.lib.Cocos2dxBitmap.java

private static byte[] getPixels(Bitmap bitmap) {
    if (bitmap != null) {
        byte[] pixels = new byte[bitmap.getWidth() * bitmap.getHeight() * 4];
        ByteBuffer buf = ByteBuffer.wrap(pixels);
        buf.order(ByteOrder.nativeOrder());
        bitmap.copyPixelsToBuffer(buf);/*  w w  w. j  a  v a2 s  .co m*/
        return pixels;
    }

    return null;
}

---

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