Example usage for java.nio ByteOrder LITTLE

Introduction

In this page you can find the example usage for java.nio ByteOrder LITTLE_ENDIAN.

Prototype

ByteOrder LITTLE_ENDIAN

To view the source code for java.nio ByteOrder LITTLE_ENDIAN.

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Document

This constant represents little endian.

Usage

From source file:edu.harvard.iq.dataverse.ingest.tabulardata.impl.plugins.sav.SAVFileReader.java

private void parseRT7SubTypefield(BufferedInputStream stream) throws IOException {
    int length_unit_length = 4;
    int length_number_of_units = 4;
    int storage_size = length_unit_length + length_number_of_units;

    int[] headerSection = new int[2];

    byte[] byteStorage = new byte[storage_size];

    try {//from   www.  j  a v  a2  s .c o m
        int nbytes = stream.read(byteStorage);
        // to-do check against nbytes

        //printHexDump(byteStorage, "RT7:storage");

        ByteBuffer bb_data_type = ByteBuffer.wrap(byteStorage, 0, length_unit_length);
        if (isLittleEndian) {
            bb_data_type.order(ByteOrder.LITTLE_ENDIAN);
        }

        int unitLength = bb_data_type.getInt();
        dbgLog.fine("parseRT7 SubTypefield: unitLength=" + unitLength);

        ByteBuffer bb_number_of_units = ByteBuffer.wrap(byteStorage, length_unit_length,
                length_number_of_units);
        if (isLittleEndian) {
            bb_number_of_units.order(ByteOrder.LITTLE_ENDIAN);
        }

        int numberOfUnits = bb_number_of_units.getInt();
        dbgLog.fine("parseRT7 SubTypefield: numberOfUnits=" + numberOfUnits);

        headerSection[0] = unitLength;
        headerSection[1] = numberOfUnits;

        for (int i = 0; i < numberOfUnits; i++) {
            byte[] work = new byte[unitLength];

            int nb = stream.read(work);
            dbgLog.finer("raw bytes in Hex:" + new String(Hex.encodeHex(work)));
            ByteBuffer bb_field = ByteBuffer.wrap(work);
            if (isLittleEndian) {
                bb_field.order(ByteOrder.LITTLE_ENDIAN);
            }
            dbgLog.fine("RT7ST: raw bytes in Hex:" + new String(Hex.encodeHex(bb_field.array())));
            if (unitLength == 4) {
                int fieldData = bb_field.getInt();
                dbgLog.fine("RT7ST: " + i + "-th fieldData=" + fieldData);
                dbgLog.fine("RT7ST: fieldData in Hex=" + Integer.toHexString(fieldData));
            } else if (unitLength == 8) {
                double fieldData = bb_field.getDouble();
                dbgLog.finer("RT7ST: " + i + "-th fieldData=" + fieldData);
                dbgLog.finer("RT7ST: fieldData in Hex=" + Double.toHexString(fieldData));

            }
            dbgLog.finer("");
        }

    } catch (IOException ex) {
        //ex.printStackTrace();
        throw ex;
    }

}

From source file:edu.harvard.iq.dataverse.ingest.tabulardata.impl.plugins.sav.SAVFileReader.java

private List<byte[]> getRT7SubTypefieldData(BufferedInputStream stream) throws IOException {
    int length_unit_length = 4;
    int length_number_of_units = 4;
    int storage_size = length_unit_length + length_number_of_units;
    List<byte[]> dataList = new ArrayList<byte[]>();
    int[] headerSection = new int[2];

    byte[] byteStorage = new byte[storage_size];

    try {/*from   ww w . ja v a 2 s .c  om*/
        int nbytes = stream.read(byteStorage);
        // to-do check against nbytes

        //printHexDump(byteStorage, "RT7:storage");

        ByteBuffer bb_data_type = ByteBuffer.wrap(byteStorage, 0, length_unit_length);
        if (isLittleEndian) {
            bb_data_type.order(ByteOrder.LITTLE_ENDIAN);
        }

        int unitLength = bb_data_type.getInt();
        dbgLog.fine("parseRT7SubTypefield: unitLength=" + unitLength);

        ByteBuffer bb_number_of_units = ByteBuffer.wrap(byteStorage, length_unit_length,
                length_number_of_units);
        if (isLittleEndian) {
            bb_number_of_units.order(ByteOrder.LITTLE_ENDIAN);
        }

        int numberOfUnits = bb_number_of_units.getInt();
        dbgLog.fine("parseRT7SubTypefield: numberOfUnits=" + numberOfUnits);

        headerSection[0] = unitLength;
        headerSection[1] = numberOfUnits;

        for (int i = 0; i < numberOfUnits; i++) {

            byte[] work = new byte[unitLength];
            int nb = stream.read(work);
            dbgLog.finer(new String(Hex.encodeHex(work)));
            dataList.add(work);
        }

    } catch (IOException ex) {
        //ex.printStackTrace();
        throw ex;
    }
    return dataList;
}

Example usage for java.nio ByteOrder LITTLE_ENDIAN

Introduction

Prototype

Document

Usage