Example usage for java.nio ByteBuffer getInt

Introduction

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

Prototype

public abstract int getInt();

Source Link

Document

Returns the int at the current position and increases the position by 4.

Usage

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

protected Index(ByteBuffer tableBuffer, List<IndexData> indexDatas, JetFormat format) throws IOException {

    ByteUtil.forward(tableBuffer, format.SKIP_BEFORE_INDEX_SLOT); //Forward past Unknown
    _indexNumber = tableBuffer.getInt();
    int indexDataNumber = tableBuffer.getInt();

    // read foreign key reference info
    byte relIndexType = tableBuffer.get();
    int relIndexNumber = tableBuffer.getInt();
    int relTablePageNumber = tableBuffer.getInt();
    byte cascadeUpdatesFlag = tableBuffer.get();
    byte cascadeDeletesFlag = tableBuffer.get();

    _indexType = tableBuffer.get();/*w w w  .  jav  a  2s. c om*/

    if ((_indexType == FOREIGN_KEY_INDEX_TYPE) && (relIndexNumber != INVALID_INDEX_NUMBER)) {
        _reference = new ForeignKeyReference(relIndexType, relIndexNumber, relTablePageNumber,
                (cascadeUpdatesFlag == CASCADE_UPDATES_FLAG), (cascadeDeletesFlag == CASCADE_DELETES_FLAG));
    } else {
        _reference = null;
    }

    ByteUtil.forward(tableBuffer, format.SKIP_AFTER_INDEX_SLOT); //Skip past Unknown

    _data = indexDatas.get(indexDataNumber);

    _data.addIndex(this);
}

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From source file:alignment.BinaryToCSV.java

/**
 * //from w w w.ja  v  a 2  s  . c  o  m
 *
 * @param 
 * @return 
 */
public int readBlocks() {
    byte[] buffer = new byte[Bp];
    byte[] tempBytes = new byte[4];
    int total = 0;
    int nRead = 0;

    try {
        while ((nRead = inputStream.read(buffer)) != -1) {
            for (int i = 0; i < nRead; i += (Bs + 2)) {
                tempBytes = new byte[4];
                tempBytes[3] = buffer[i];
                tempBytes[2] = buffer[i + 1];
                ByteBuffer bb = ByteBuffer.wrap(tempBytes);
                int tsI = bb.getInt();
                //System.out.println("Timestamp: " + tsI);
                double calTS = calibrateTimeStamp((double) tsI);
                timestampsCal.add(calTS);
                //System.out.println("CAL Timestamp: " + calTS);
            }
            total += nRead;
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return total;
}

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

int sliceToInt(Slice s) {
    ByteBuffer bb = ByteBuffer.wrap(s.buffer, s.offset, s.length);
    return bb.getInt();
}

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From source file:com.hortonworks.registries.schemaregistry.serdes.avro.AvroSnapshotDeserializer.java

protected SchemaIdVersion retrieveSchemaIdVersion(InputStream payloadInputStream) throws SerDesException {
    // it can be enhanced to have respective protocol handlers for different versions
    // first byte is protocol version/id.
    // protocol format:
    // 1 byte  : protocol version
    // 8 bytes : schema metadata Id
    // 4 bytes : schema version
    ByteBuffer byteBuffer = ByteBuffer.allocate(13);
    try {/*from  w w  w  .ja  v  a  2  s  . com*/
        payloadInputStream.read(byteBuffer.array());
    } catch (IOException e) {
        throw new SerDesException(e);
    }

    byte protocolId = byteBuffer.get();
    if (protocolId != AvroSchemaProvider.CURRENT_PROTOCOL_VERSION) {
        throw new SerDesException(
                "Unknown protocol id [" + protocolId + "] received while deserializing the payload");
    }
    long schemaMetadataId = byteBuffer.getLong();
    int schemaVersion = byteBuffer.getInt();

    return new SchemaIdVersion(schemaMetadataId, schemaVersion);
}

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From source file:alignment.BinaryToCSV.java

/**
 * /*from  www.ja  v  a  2s  . com*/
 *
 * @param 
 * @return 
 */
public int readHeader() {
    byte[] buffer = new byte[HEADER_SIZE]; //178
    int nRead = 0;

    try {
        if ((nRead = inputStream.read(buffer)) == -1)
            System.err.println("Header read failed");
    } catch (IOException e) {
        e.printStackTrace();
    }
    counter += nRead;

    byteToBits(buffer[0], 0);
    LN = b7;
    System.out.println("Low Noise: " + LN);
    gyro = b6;
    System.out.println("Gyroscope: " + gyro);
    mag = b5;
    System.out.println("Magnetometer: " + mag);

    byteToBits(buffer[1], 1);
    WR = b4;
    System.out.println("Wide Range: " + WR);

    byteToBits(buffer[10], 10);
    sync = b2;
    System.out.println("Sync: " + sync);
    master = b1;
    System.out.println("Master: " + master);

    NumberFormat nf = NumberFormat.getNumberInstance(Locale.ENGLISH);
    DecimalFormat df = (DecimalFormat) nf;
    df.applyPattern("#.#");
    sampleRate = Double.parseDouble(
            df.format(TWO_EXP_15 / (double) ((int) (buffer[21] & 0xFF) + ((int) (buffer[20] & 0xFF) << 8))));
    System.out.println("SampleRate: " + sampleRate);

    byte[] tempBytes = new byte[4];
    tempBytes[3] = buffer[174];
    tempBytes[2] = buffer[175];
    tempBytes[1] = buffer[176];
    tempBytes[0] = buffer[177];

    ByteBuffer bb = ByteBuffer.wrap(tempBytes);
    initialTS32 = bb.getInt();
    System.out.println("Initial Timestamp: " + initialTS32);

    for (int i = 0; i < buffer.length; i++) {
        //byteToBits(buffer[i], i);
    }
    return nRead;
}

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From source file:loci.formats.in.KLBReader.java

private int readUInt32() throws IOException {
    byte[] b = new byte[4];
    in.read(b, 0, 4);// w w w. j  a  v a  2 s .  co  m
    ByteBuffer bb = ByteBuffer.wrap(b).order(ByteOrder.LITTLE_ENDIAN);
    return bb.getInt();
}

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From source file:com.navercorp.pinpoint.common.buffer.FixedBufferTest.java

@Test
public void testWrapByteBuffer() throws Exception {
    FixedBuffer buffer = new FixedBuffer(8);
    buffer.putInt(1);//from  w w w  .ja  v  a  2  s.  c  o m
    buffer.putInt(2);

    final ByteBuffer byteBuffer = buffer.wrapByteBuffer();
    Assert.assertEquals(byteBuffer.getInt(), 1);
    Assert.assertEquals(byteBuffer.getInt(), 2);
}

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From source file:com.yobidrive.diskmap.needles.Needle.java

public boolean getNeedleDataFromBuffer(ByteBuffer input) throws Exception {
    try {/*from   w w w . j a va 2 s.  c om*/
        // input.reset() ; // Back to end of header
        // int startPosition = readBytes * -1 ;

        if (size > 0) {
            data = new byte[size];
            input.get(data);
        } else
            data = null;
        int magic = input.getInt();
        if (magic != MAGICEND) {
            logger.error("No MAGICEND within needle " + this.needleNumber);
            return false;
        }
        byte[] md5 = new byte[16];
        input.get(md5);
        byte[] currentMD5 = hashMD5();
        if (!Arrays.equals(md5, currentMD5)) {
            logger.error("Needle MD5 failed for " + new String(keyBytes, "UTF-8"));
            return false;
        }
    } catch (BufferUnderflowException bue) {
        return false;
    }
    return true;
}

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From source file:com.linkedin.pinot.core.common.datatable.DataTableImplV2.java

/**
 * Construct data table from byte array. (broker side)
 *///from ww w .j a v a  2s  .  co  m
public DataTableImplV2(@Nonnull ByteBuffer byteBuffer) throws IOException {
    // Read header.
    _numRows = byteBuffer.getInt();
    _numColumns = byteBuffer.getInt();
    int dictionaryMapStart = byteBuffer.getInt();
    int dictionaryMapLength = byteBuffer.getInt();
    int metadataStart = byteBuffer.getInt();
    int metadataLength = byteBuffer.getInt();
    int dataSchemaStart = byteBuffer.getInt();
    int dataSchemaLength = byteBuffer.getInt();
    int fixedSizeDataStart = byteBuffer.getInt();
    int fixedSizeDataLength = byteBuffer.getInt();
    int variableSizeDataStart = byteBuffer.getInt();
    int variableSizeDataLength = byteBuffer.getInt();

    // Read dictionary.
    if (dictionaryMapLength != 0) {
        byte[] dictionaryMapBytes = new byte[dictionaryMapLength];
        byteBuffer.position(dictionaryMapStart);
        byteBuffer.get(dictionaryMapBytes);
        _dictionaryMap = deserializeDictionaryMap(dictionaryMapBytes);
    } else {
        _dictionaryMap = null;
    }

    // Read metadata.
    byte[] metadataBytes = new byte[metadataLength];
    byteBuffer.position(metadataStart);
    byteBuffer.get(metadataBytes);
    _metadata = deserializeMetadata(metadataBytes);

    // Read data schema.
    if (dataSchemaLength != 0) {
        byte[] schemaBytes = new byte[dataSchemaLength];
        byteBuffer.position(dataSchemaStart);
        byteBuffer.get(schemaBytes);
        _dataSchema = DataSchema.fromBytes(schemaBytes);
        _columnOffsets = new int[_dataSchema.size()];
        _rowSizeInBytes = DataTableUtils.computeColumnOffsets(_dataSchema, _columnOffsets);
    } else {
        _dataSchema = null;
        _columnOffsets = null;
        _rowSizeInBytes = 0;
    }

    // Read fixed size data.
    if (fixedSizeDataLength != 0) {
        _fixedSizeDataBytes = new byte[fixedSizeDataLength];
        byteBuffer.position(fixedSizeDataStart);
        byteBuffer.get(_fixedSizeDataBytes);
        _fixedSizeData = ByteBuffer.wrap(_fixedSizeDataBytes);
    } else {
        _fixedSizeDataBytes = null;
        _fixedSizeData = null;
    }

    // Read variable size data.
    if (variableSizeDataLength != 0) {
        _variableSizeDataBytes = new byte[variableSizeDataLength];
        byteBuffer.position(variableSizeDataStart);
        byteBuffer.get(_variableSizeDataBytes);
        _variableSizeData = ByteBuffer.wrap(_variableSizeDataBytes);
    } else {
        _variableSizeDataBytes = null;
        _variableSizeData = null;
    }
}

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From source file:nl.dobots.bluenet.ble.base.structs.CrownstoneServiceData.java

public CrownstoneServiceData(byte[] bytes) {
    super();/*from   w ww .  j  a  v  a 2  s . c  om*/

    ByteBuffer bb = ByteBuffer.wrap(bytes);
    bb.order(ByteOrder.LITTLE_ENDIAN);

    bb.getShort(); // skip first two bytes (service UUID)

    bb.mark();
    int val = bb.get();

    if (val == 1) {
        setCrownstoneId(bb.getShort());
        setCrownstoneStateId(bb.getShort());
        setSwitchState((bb.get() & 0xff));
        setEventBitmask(bb.get());
        setTemperature(bb.get());
        setPowerUsage(bb.getInt());
        setAccumulatedEnergy(bb.getInt());

        setRelayState(BleUtils.isBitSet(getSwitchState(), 7));
        setPwm(getSwitchState() & ~(1 << 7));
    } else {
        bb.reset();
        setCrownstoneId(bb.getShort());
        setCrownstoneStateId(bb.getShort());
        setSwitchState((bb.get() & 0xff));
        setEventBitmask(bb.get());
        setTemperature(bb.get());
        bb.get(); // skip reserved
        //         bb.getShort(); // skip reserved
        setPowerUsage(bb.getInt());
        setAccumulatedEnergy(bb.getInt());

        setRelayState(BleUtils.isBitSet(getSwitchState(), 7));
        setPwm(getSwitchState() & ~(1 << 7));
    }
}

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