Example usage for java.nio ByteOrder LITTLE_ENDIAN

Introduction

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

Prototype

ByteOrder LITTLE_ENDIAN

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Document

This constant represents little endian.

Usage

From source file:edu.udo.scaffoldhunter.model.db.StringProperty.java

/**
 * Extracts the BitFingerprint length from the first two bytes
 * /*from w  ww.  j a  va  2  s  .co  m*/
 * @param bitFingerprint
 *            the bytes
 * @return the length
 */
private short bitFingerprintToLength(byte[] bitFingerprint) {
    Preconditions.checkArgument(bitFingerprint.length >= 3);

    ByteBuffer bb = ByteBuffer.allocate(2);
    bb.order(ByteOrder.LITTLE_ENDIAN);
    bb.put(bitFingerprint[0]);
    bb.put(bitFingerprint[1]);
    short length = bb.getShort(0);

    return length;
}

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From source file:org.ros.android.android_acm_serial.AcmDevice.java

public void setLineCoding(BitRate bitRate, StopBits stopBits, Parity parity, DataBits dataBits) {
    ByteBuffer buffer = ByteBuffer.allocate(7);
    buffer.order(ByteOrder.LITTLE_ENDIAN);
    buffer.putInt(bitRate.getBitRate());
    buffer.put(stopBits.getStopBits());// w  w  w. ja va  2s.  c  om
    buffer.put(parity.getParity());
    buffer.put(dataBits.getDataBits());
    setLineCoding(buffer.array());
}

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From source file:nl.salp.warcraft4j.casc.cdn.local.LocalIndexFileParser.java

/**
 * Validate the index file header./* w  w w .jav  a2  s  .  co m*/
 *
 * @param reader The reader to read the header data from.
 *
 * @throws CascParsingException When the header is invalid.
 * @throws DataReadingException When reading the entry data failed.
 * @throws DataParsingException When parsing the entry data failed.
 */
private void validateHeader(DataReader reader)
        throws CascParsingException, DataReadingException, DataParsingException {
    long position = reader.position();

    int headerLen = (int) reader.readNext(DataTypeFactory.getUnsignedInteger(), ByteOrder.LITTLE_ENDIAN)
            .longValue();
    int hash = reader.readNext(DataTypeFactory.getInteger(), ByteOrder.LITTLE_ENDIAN);

    byte[] data = reader.readNext(DataTypeFactory.getByteArray(headerLen));

    int h2 = JenkinsHash.hashLittle2b(data, headerLen);
    if (hash != h2) {
        throw new CascParsingException(format("Invalid index header hash %X -> %X", hash, h2));
    }

    reader.position(position);
}

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From source file:org.mycontroller.standalone.provider.mycontroller.MyControllerExecutor.java

@Override
public void executeFirmwareConfigRequest() {
    McFirmwareConfig firmwareConfigRequest = new McFirmwareConfig();
    try {//from w w  w  .java 2 s  . c o m
        firmwareConfigRequest.setByteBuffer(ByteBuffer.wrap(Hex.decodeHex(_message.getPayload().toCharArray()))
                .order(ByteOrder.LITTLE_ENDIAN), 0);
        Firmware firmware = null;

        //Check firmware is configured for this particular node
        Node node = DaoUtils.getNodeDao().get(_message.getGatewayId(), _message.getNodeEui());
        if (node != null && node.getFirmware() != null) {
            firmware = DaoUtils.getFirmwareDao().getById(node.getFirmware().getId());
            _logger.debug("Firmware selected based on node configuration...");
        } else if (firmwareConfigRequest.getType() == 65535 && firmwareConfigRequest.getVersion() == 65535) {
            if (AppProperties.getInstance().getMySensorsSettings().getDefaultFirmware() != null) {
                firmware = DaoUtils.getFirmwareDao()
                        .getById(AppProperties.getInstance().getMySensorsSettings().getDefaultFirmware());
            } else {
                _logger.warn("There is no default firmware set!");
            }
        } else {
            firmware = DaoUtils.getFirmwareDao().get(firmwareConfigRequest.getType(),
                    firmwareConfigRequest.getVersion());
        }

        McFirmwareConfig firmwareConfigResponse = new McFirmwareConfig();
        firmwareConfigResponse.setByteBufferPosition(0);

        if (firmware == null) {//Non bootloader command
            if (AppProperties.getInstance().getMySensorsSettings().getEnbaledDefaultOnNoFirmware()) {
                _logger.debug("If requested firmware is not available, "
                        + "redirect to default firmware is set, Checking the default firmware");
                if (AppProperties.getInstance().getMySensorsSettings().getDefaultFirmware() != null) {
                    firmware = DaoUtils.getFirmwareDao()
                            .getById(AppProperties.getInstance().getMySensorsSettings().getDefaultFirmware());
                    _logger.debug("Default firmware:[{}]", firmware.getFirmwareName());
                } else {
                    _logger.warn("There is no default firmware set!");
                }
            }
            //Selected, default: No firmware available for this request
            if (firmware == null) {
                _logger.warn("Selected Firmware is not available, FirmwareConfigRequest:[{}]",
                        firmwareConfigRequest);
                return;
            }
        }

        if (firmware != null) {
            firmwareConfigResponse.setType(firmware.getType().getId());
            firmwareConfigResponse.setVersion(firmware.getVersion().getId());
            firmwareConfigResponse.setBlocks((Integer) firmware.getProperties().get(Firmware.KEY_PROP_BLOCKS));
            firmwareConfigResponse.setMd5Sum((String) firmware.getProperties().get(Firmware.KEY_PROP_MD5_HEX));
        }

        _message.setTxMessage(true);
        _message.setSubType(MESSAGE_TYPE_STREAM.ST_FIRMWARE_CONFIG_RESPONSE.getText());
        _message.setPayload(Hex.encodeHexString(firmwareConfigResponse.getByteBuffer().array()).toUpperCase());
        _message.setTimestamp(System.currentTimeMillis());
        addInQueue(_message);
        _logger.debug("FirmwareConfigRequest:[{}]", firmwareConfigRequest);
        _logger.debug("FirmwareConfigResponse:[{}]", firmwareConfigResponse);
    } catch (DecoderException ex) {
        _logger.error("Exception, ", ex);
    }

}

---

From source file:com.topsem.common.net.IPSeeker.java

public IPSeeker(File ipFile) throws Exception {
    this.ipFile = new RandomAccessFile(ipFile, "r");
    ipCache = new HashMap<String, IPLocation>();
    FileChannel fc = this.ipFile.getChannel();
    mbb = fc.map(FileChannel.MapMode.READ_ONLY, 0, ipFile.length());
    mbb.order(ByteOrder.LITTLE_ENDIAN);
    ipBegin = readInt(0);//from   w ww .j av  a 2 s  . co  m
    ipEnd = readInt(4);
    if (ipBegin == -1 || ipEnd == -1) {
        throw new IOException("IP???IP");
    }
    log.debug("IP?:" + ipFile.getAbsolutePath());
}

---

From source file:edu.udo.scaffoldhunter.model.db.StringProperty.java

/**
 * Set the length in the BitFingerprint (first two bytes)
 * //from  w w  w. j a  va 2 s. c om
 * @param length
 *            the length
 * @param bitFingerprint
 *            the fingerprint
 */
private void lenghtToBitFingerprint(short length, byte[] bitFingerprint) {
    ByteBuffer bb = ByteBuffer.allocate(2);
    bb.order(ByteOrder.LITTLE_ENDIAN);
    bb.putShort(length);

    bitFingerprint[0] = bb.get(0);
    bitFingerprint[1] = bb.get(1);
}

---

From source file:org.mycontroller.standalone.provider.mysensors.MySensorsExecutor.java

@Override
public void executeFirmwareConfigRequest() {

    FirmwareConfigRequest firmwareConfigRequest = new FirmwareConfigRequest();
    try {/*from  w  ww.j  a  v  a 2 s  .c  om*/
        firmwareConfigRequest.setByteBuffer(ByteBuffer.wrap(Hex.decodeHex(_message.getPayload().toCharArray()))
                .order(ByteOrder.LITTLE_ENDIAN), 0);
        boolean bootLoaderCommand = false;
        Firmware firmware = null;

        //Check firmware is configured for this particular node
        Node node = DaoUtils.getNodeDao().get(_message.getGatewayId(), _message.getNodeEui());
        if (node != null && node.getEraseConfig() != null && node.getEraseConfig()) {
            bootLoaderCommand = true;
            _logger.debug("Erase EEPROM has been set...");
        } else if (node != null && node.getFirmware() != null) {
            firmware = DaoUtils.getFirmwareDao().getById(node.getFirmware().getId());
            _logger.debug("Firmware selected based on node configuration...");
        } else if (firmwareConfigRequest.getType() == 65535 && firmwareConfigRequest.getVersion() == 65535) {
            if (AppProperties.getInstance().getMySensorsSettings().getDefaultFirmware() != null) {
                firmware = DaoUtils.getFirmwareDao()
                        .getById(AppProperties.getInstance().getMySensorsSettings().getDefaultFirmware());
            } else {
                _logger.warn("There is no default firmware set!");
            }
        } else {
            firmware = DaoUtils.getFirmwareDao().get(firmwareConfigRequest.getType(),
                    firmwareConfigRequest.getVersion());
        }

        FirmwareConfigResponse firmwareConfigResponse = new FirmwareConfigResponse();
        firmwareConfigResponse.setByteBufferPosition(0);

        if (bootLoaderCommand) {//If it is bootloader command
            if (node.getEraseConfig() != null && node.getEraseConfig()) {
                firmwareConfigResponse.loadEraseEepromCommand();
                node.setEraseConfig(false); //Remove erase EEPROM flag and update in to database
                DaoUtils.getNodeDao().update(node);
            } else {
                _logger.warn("Selected booloader command is not available, FirmwareConfigRequest:[{}]",
                        firmwareConfigRequest);
                return;
            }
        } else if (firmware == null) {//Non bootloader command
            if (AppProperties.getInstance().getMySensorsSettings().getEnbaledDefaultOnNoFirmware()) {
                _logger.debug("If requested firmware is not available, "
                        + "redirect to default firmware is set, Checking the default firmware");
                if (AppProperties.getInstance().getMySensorsSettings().getDefaultFirmware() != null) {
                    firmware = DaoUtils.getFirmwareDao()
                            .getById(AppProperties.getInstance().getMySensorsSettings().getDefaultFirmware());
                    _logger.debug("Default firmware:[{}]", firmware.getFirmwareName());
                } else {
                    _logger.warn("There is no default firmware set!");
                }
            }
            //Selected, default: No firmware available for this request
            if (firmware == null) {
                _logger.warn("Selected Firmware is not available, FirmwareConfigRequest:[{}]",
                        firmwareConfigRequest);
                return;
            }
        }

        if (firmware != null) {
            firmwareConfigResponse.setType(firmware.getType().getId());
            firmwareConfigResponse.setVersion(firmware.getVersion().getId());
            firmwareConfigResponse.setBlocks((Integer) firmware.getProperties().get(Firmware.KEY_PROP_BLOCKS));
            firmwareConfigResponse.setCrc((Integer) firmware.getProperties().get(Firmware.KEY_PROP_CRC));
        }

        _message.setTxMessage(true);
        _message.setSubType(MESSAGE_TYPE_STREAM.ST_FIRMWARE_CONFIG_RESPONSE.getText());
        _message.setPayload(Hex.encodeHexString(firmwareConfigResponse.getByteBuffer().array()).toUpperCase());
        _message.setTimestamp(System.currentTimeMillis());
        addInQueue(_message);
        _logger.debug("FirmwareConfigRequest:[{}]", firmwareConfigRequest);
        _logger.debug("FirmwareConfigResponse:[{}]", firmwareConfigResponse);
    } catch (DecoderException ex) {
        _logger.error("Exception, ", ex);
    }
}

---

From source file:com.google.flatbuffers.Table.java

/**
 * Get a whole vector as a ByteBuffer./*from  w w w  .  j a  va  2  s.  c o  m*/
 *
 * This is efficient, since it only allocates a new {@link ByteBuffer} object,
 * but does not actually copy the data, it still refers to the same bytes
 * as the original ByteBuffer. Also useful with nested FlatBuffers, etc.
 *
 * @param vector_offset The position of the vector in the byte buffer
 * @param elem_size The size of each element in the array
 * @return The {@link ByteBuffer} for the array
 */
protected ByteBuffer __vector_as_bytebuffer(int vector_offset, int elem_size) {
    int o = __offset(vector_offset);
    if (o == 0)
        return null;
    ByteBuffer bb = this.bb.duplicate().order(ByteOrder.LITTLE_ENDIAN);
    int vectorstart = __vector(o);
    bb.position(vectorstart);
    bb.limit(vectorstart + __vector_len(o) * elem_size);
    return bb;
}

---

From source file:com.codestation.henkakuserver.HenkakuServer.java

/**
 * Convert the exploit to a shellcode in binary format
 *
 * @param exploit payload compiled code// w  w  w.  j  ava2 s.  c o  m
 * @return the shellcode
 * @throws Exception
 */
private byte[] preprocessToBin(byte[] exploit) throws Exception {
    Pair<ArrayList<Integer>, List<Byte>> data = preprocessRop(exploit);

    int size = 4 + data.first.size() * 4 + data.second.size();
    byte[] out = new byte[size + ((-size) & 3)];
    ByteBuffer buf = ByteBuffer.wrap(out).order(ByteOrder.LITTLE_ENDIAN);

    buf.putInt(data.second.size());

    for (Integer val : data.first) {
        buf.putInt(val);
    }

    for (Byte val : data.second) {
        buf.put(val);
    }

    return out;
}

---

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();
        }/*from   w w w  . j ava2  s  . co m*/
    } 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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