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();

Source Link

Document

Returns the short at the current position and increases the position by 2.

Usage

From source file:org.apache.druid.hll.HyperLogLogCollectorTest.java

@Test
public void testFoldWithDifferentOffsets1() {
    ByteBuffer biggerOffset = makeCollectorBuffer(1, (byte) 0x00, 0x11);
    ByteBuffer smallerOffset = makeCollectorBuffer(0, (byte) 0x20, 0x00);

    HyperLogLogCollector collector = HyperLogLogCollector.makeLatestCollector();
    collector.fold(biggerOffset);/*ww  w.j a va  2 s. c  o m*/
    collector.fold(smallerOffset);

    ByteBuffer outBuffer = collector.toByteBuffer();

    Assert.assertEquals(outBuffer.get(), collector.getVersion());
    Assert.assertEquals(outBuffer.get(), 1);
    Assert.assertEquals(outBuffer.getShort(), 2047);
    outBuffer.get();
    outBuffer.getShort();
    Assert.assertEquals(outBuffer.get(), 0x10);
    while (outBuffer.hasRemaining()) {
        Assert.assertEquals(outBuffer.get(), 0x11);
    }

    collector = HyperLogLogCollector.makeLatestCollector();
    collector.fold(smallerOffset);
    collector.fold(biggerOffset);

    outBuffer = collector.toByteBuffer();

    Assert.assertEquals(outBuffer.get(), collector.getVersion());
    Assert.assertEquals(outBuffer.get(), 1);
    Assert.assertEquals(outBuffer.getShort(), 2047);
    Assert.assertEquals(outBuffer.get(), 0);
    Assert.assertEquals(outBuffer.getShort(), 0);
    Assert.assertEquals(outBuffer.get(), 0x10);
    while (outBuffer.hasRemaining()) {
        Assert.assertEquals(outBuffer.get(), 0x11);
    }
}

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From source file:org.apache.druid.hll.HyperLogLogCollectorTest.java

@Test
public void testFoldWithArbitraryInitialPositions() {
    ByteBuffer biggerOffset = shiftedBuffer(makeCollectorBuffer(1, (byte) 0x00, 0x11), 10);
    ByteBuffer smallerOffset = shiftedBuffer(makeCollectorBuffer(0, (byte) 0x20, 0x00), 15);

    HyperLogLogCollector collector = HyperLogLogCollector.makeLatestCollector();
    collector.fold(biggerOffset);//from w  ww  .j a  v  a 2  s.c  o  m
    collector.fold(smallerOffset);

    ByteBuffer outBuffer = collector.toByteBuffer();

    Assert.assertEquals(outBuffer.get(), collector.getVersion());
    Assert.assertEquals(outBuffer.get(), 1);
    Assert.assertEquals(outBuffer.getShort(), 2047);
    outBuffer.get();
    outBuffer.getShort();
    Assert.assertEquals(outBuffer.get(), 0x10);
    while (outBuffer.hasRemaining()) {
        Assert.assertEquals(outBuffer.get(), 0x11);
    }

    collector = HyperLogLogCollector.makeLatestCollector();
    collector.fold(smallerOffset);
    collector.fold(biggerOffset);

    outBuffer = collector.toByteBuffer();

    Assert.assertEquals(outBuffer.get(), collector.getVersion());
    Assert.assertEquals(outBuffer.get(), 1);
    Assert.assertEquals(outBuffer.getShort(), 2047);
    outBuffer.get();
    outBuffer.getShort();
    Assert.assertEquals(outBuffer.get(), 0x10);
    while (outBuffer.hasRemaining()) {
        Assert.assertEquals(outBuffer.get(), 0x11);
    }
}

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From source file:org.apache.druid.hll.HyperLogLogCollectorTest.java

@Test
public void testFoldWithUpperNibbleTriggersOffsetChange() {
    byte[] arr1 = new byte[HyperLogLogCollector.getLatestNumBytesForDenseStorage()];
    Arrays.fill(arr1, (byte) 0x11);
    ByteBuffer buffer1 = ByteBuffer.wrap(arr1);
    buffer1.put(0, VersionOneHyperLogLogCollector.VERSION);
    buffer1.put(1, (byte) 0);
    buffer1.putShort(2, (short) (2047));
    buffer1.put(VersionOneHyperLogLogCollector.HEADER_NUM_BYTES, (byte) 0x1);

    byte[] arr2 = new byte[HyperLogLogCollector.getLatestNumBytesForDenseStorage()];
    Arrays.fill(arr2, (byte) 0x11);
    ByteBuffer buffer2 = ByteBuffer.wrap(arr2);
    buffer2.put(0, VersionOneHyperLogLogCollector.VERSION);
    buffer2.put(1, (byte) 0);
    buffer2.putShort(2, (short) (2048));

    HyperLogLogCollector collector = HyperLogLogCollector.makeCollector(buffer1);
    collector.fold(buffer2);/* w  w  w.java  2 s . c o m*/

    ByteBuffer outBuffer = collector.toByteBuffer();

    Assert.assertEquals(outBuffer.get(), VersionOneHyperLogLogCollector.VERSION);
    Assert.assertEquals(outBuffer.get(), 1);
    Assert.assertEquals(outBuffer.getShort(), 0);
    outBuffer.get();
    outBuffer.getShort();
    Assert.assertFalse(outBuffer.hasRemaining());
}

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From source file:org.trafodion.sql.HBaseAccess.HBulkLoadClient.java

public boolean addToHFile(short rowIDLen, Object rowIDs, Object rows) throws IOException, URISyntaxException {
    if (logger.isDebugEnabled())
        logger.debug("Enter addToHFile() ");
    Put put;/*from w w w . j  av a2  s  .c  o m*/
    if (isNewFileNeeded()) {
        doCreateHFile();
    }
    ByteBuffer bbRows, bbRowIDs;
    short numCols, numRows;
    short colNameLen;
    int colValueLen;
    byte[] colName, colValue, rowID;

    bbRowIDs = (ByteBuffer) rowIDs;
    bbRows = (ByteBuffer) rows;
    numRows = bbRowIDs.getShort();
    HTableClient htc = new HTableClient();
    long now = System.currentTimeMillis();
    for (short rowNum = 0; rowNum < numRows; rowNum++) {
        rowID = new byte[rowIDLen];
        bbRowIDs.get(rowID, 0, rowIDLen);
        numCols = bbRows.getShort();
        for (short colIndex = 0; colIndex < numCols; colIndex++) {
            colNameLen = bbRows.getShort();
            colName = new byte[colNameLen];
            bbRows.get(colName, 0, colNameLen);
            colValueLen = bbRows.getInt();
            colValue = new byte[colValueLen];
            bbRows.get(colValue, 0, colValueLen);
            KeyValue kv = new KeyValue(rowID, htc.getFamily(colName), htc.getName(colName), now, colValue);
            writer.append(kv);
        }
    }
    if (logger.isDebugEnabled())
        logger.debug("End addToHFile() ");
    return true;
}

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From source file:org.apache.carbondata.processing.store.writer.AbstractFactDataWriter.java

/**
 * Below method will be used to update the no dictionary start and end key
 *
 * @param key key to be updated//from  w w w . j av  a 2  s.  c o m
 * @return return no dictionary key
 */
protected byte[] updateNoDictionaryStartAndEndKey(byte[] key) {
    if (key.length == 0) {
        return key;
    }
    // add key to byte buffer remove the length part of the data
    ByteBuffer buffer = ByteBuffer.wrap(key, 2, key.length - 2);
    // create a output buffer without length
    ByteBuffer output = ByteBuffer.allocate(key.length - 2);
    short numberOfByteToStorLength = 2;
    // as length part is removed, so each no dictionary value index
    // needs to be reshuffled by 2 bytes
    for (int i = 0; i < dataWriterVo.getNoDictionaryCount(); i++) {
        output.putShort((short) (buffer.getShort() - numberOfByteToStorLength));
    }
    // copy the data part
    while (buffer.hasRemaining()) {
        output.put(buffer.get());
    }
    output.rewind();
    return output.array();
}

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From source file:org.apache.carbondata.core.indexstore.blockletindex.BlockDataMap.java

protected int getTotalBlocklets() {
    ByteBuffer byteBuffer = ByteBuffer.wrap(getBlockletRowCountForEachBlock());
    int sum = 0;//from  w  ww. j a  v a2 s  .c o m
    while (byteBuffer.hasRemaining()) {
        sum += byteBuffer.getShort();
    }
    return sum;
}

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From source file:org.opendaylight.lispflowmapping.lisp.serializer.MapRegisterSerializer.java

public MapRegister deserialize(ByteBuffer registerBuffer, InetAddress sourceRloc) {
    try {/*  w  w  w. j  a  va 2 s.c  o  m*/
        MapRegisterBuilder builder = new MapRegisterBuilder();
        builder.setMappingRecordItem(new ArrayList<MappingRecordItem>());

        byte typeAndFlags = registerBuffer.get();
        boolean xtrSiteIdPresent = ByteUtil.extractBit(typeAndFlags, Flags.XTRSITEID);
        builder.setProxyMapReply(ByteUtil.extractBit(typeAndFlags, Flags.PROXY));
        builder.setXtrSiteIdPresent(xtrSiteIdPresent);

        registerBuffer.position(registerBuffer.position() + Length.RES);
        byte mergeAndMapReply = registerBuffer.get();
        builder.setWantMapNotify(ByteUtil.extractBit(mergeAndMapReply, Flags.WANT_MAP_NOTIFY));
        builder.setMergeEnabled(ByteUtil.extractBit(mergeAndMapReply, Flags.MERGE_ENABLED));
        byte recordCount = (byte) ByteUtil.getUnsignedByte(registerBuffer);
        builder.setNonce(registerBuffer.getLong());
        builder.setKeyId(registerBuffer.getShort());
        short authenticationLength = registerBuffer.getShort();
        byte[] authenticationData = new byte[authenticationLength];
        registerBuffer.get(authenticationData);
        builder.setAuthenticationData(authenticationData);

        if (xtrSiteIdPresent) {
            List<MappingRecordBuilder> mrbs = new ArrayList<MappingRecordBuilder>();
            for (int i = 0; i < recordCount; i++) {
                mrbs.add(MappingRecordSerializer.getInstance().deserializeToBuilder(registerBuffer));
            }
            byte[] xtrIdBuf = new byte[Length.XTRID_SIZE];
            registerBuffer.get(xtrIdBuf);
            XtrId xtrId = new XtrId(xtrIdBuf);
            byte[] siteIdBuf = new byte[Length.SITEID_SIZE];
            registerBuffer.get(siteIdBuf);
            SiteId siteId = new SiteId(siteIdBuf);
            builder.setXtrId(xtrId);
            builder.setSiteId(siteId);
            for (MappingRecordBuilder mrb : mrbs) {
                mrb.setXtrId(xtrId);
                mrb.setSiteId(siteId);
                mrb.setSourceRloc(getSourceRloc(sourceRloc));
                builder.getMappingRecordItem()
                        .add(new MappingRecordItemBuilder().setMappingRecord(mrb.build()).build());
            }
        } else {
            for (int i = 0; i < recordCount; i++) {
                builder.getMappingRecordItem()
                        .add(new MappingRecordItemBuilder()
                                .setMappingRecord(
                                        MappingRecordSerializer.getInstance().deserialize(registerBuffer))
                                .build());
            }
        }

        registerBuffer.limit(registerBuffer.position());
        byte[] mapRegisterBytes = new byte[registerBuffer.position()];
        registerBuffer.position(0);
        registerBuffer.get(mapRegisterBytes);
        return builder.build();
    } catch (RuntimeException re) {
        throw new LispSerializationException(
                "Couldn't deserialize Map-Register (len=" + registerBuffer.capacity() + ")", re);
    }

}

---

From source file:org.carbondata.core.util.CarbonUtil.java

public static short[] getUnCompressColumnIndex(int totalLength, byte[] columnIndexData) {
    ByteBuffer buffer = ByteBuffer.wrap(columnIndexData);
    buffer.rewind();//from   ww  w  .  j  av  a  2 s .  com
    int indexDataLength = buffer.getInt();
    short[] indexData = new short[indexDataLength / 2];
    short[] indexMap = new short[(totalLength - indexDataLength - CarbonCommonConstants.INT_SIZE_IN_BYTE) / 2];
    int counter = 0;
    while (counter < indexData.length) {
        indexData[counter] = buffer.getShort();
        counter++;
    }
    counter = 0;
    while (buffer.hasRemaining()) {
        indexMap[counter++] = buffer.getShort();
    }
    return UnBlockIndexer.uncompressIndex(indexData, indexMap);
}

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From source file:de.hpi.fgis.hdrs.Triple.java

public void readFields(ByteBuffer buffer) {
    // read header
    Slen = buffer.getShort();
    Plen = buffer.getShort();/*ww w  . j  av  a  2s . c o m*/
    Olen = buffer.getInt();
    multiplicity = buffer.getInt();
    // read data
    this.buffer = buffer.array();
    int size = (int) Slen + (int) Plen + Olen;
    offset = buffer.arrayOffset() + buffer.position();
    buffer.position(buffer.position() + size);
}

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From source file:org.opendaylight.controller.protocol_plugin.openflow.vendorextension.v6extension.V6Match.java

private void readEtherType(ByteBuffer data, int nxmLen, boolean hasMask) {
    /*/* w ww. ja va  2s  .co m*/
     * mask is not allowed in ethertype
     */
    if ((nxmLen != 2) || (data.remaining() < 2) || (hasMask))
        return;
    super.setDataLayerType(data.getShort());
    this.ethTypeState = MatchFieldState.MATCH_FIELD_ONLY;
    this.wildcards ^= (1 << 4); // Sync with 0F 1.0 Match
    this.match_len += 6;
}

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