Example usage for java.nio ByteBuffer array

List of usage examples for java.nio ByteBuffer array

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Introduction

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

Prototype

public final byte[] array()

Source Link

Document

Returns the byte array which this buffer is based on, if there is one.

Usage

From source file:com.l2jfree.gameserver.network.L2Client.java

@Override
public boolean encrypt(final ByteBuffer buf, final int size) {
    getCrypt().encrypt(buf.array(), buf.position(), size);
    buf.position(buf.position() + size);
    return true;/*from w  w  w  .  j  a v a2  s  . c o  m*/
}

From source file:com.linkedin.pinot.queries.PercentileTDigestQueriesTest.java

/**
 * Helper method to build a segment containing a single valued string column with RAW (no-dictionary) index.
 *
 * @return Array of string values for the rows in the generated index.
 * @throws Exception/*ww  w .ja  va  2  s  .  com*/
 */

private RecordReader buildIndex(Schema schema) throws Exception {
    SegmentGeneratorConfig config = new SegmentGeneratorConfig(schema);

    config.setOutDir(SEGMENT_DIR_NAME);
    config.setSegmentName(SEGMENT_NAME);
    config.setTableName(TABLE_NAME);
    config.setRawIndexCreationColumns(Arrays.asList(TDIGEST_COLUMN));

    List<GenericRow> rows = new ArrayList<>(NUM_ROWS);
    _expectedTDigest = new TDigest(PercentileTDigestAggregationFunction.DEFAULT_TDIGEST_COMPRESSION);

    _expectedGroupBy = new HashMap<>();
    _expectedSelectionTDigests = new ArrayList<>(NUM_ROWS);

    for (int i = 0; i < NUM_ROWS; i++) {
        HashMap<String, Object> map = new HashMap<>();

        // Set the value for fixed-byte sorted column.
        double value = _random.nextDouble();
        TDigest tDigest = new TDigest(PercentileTDigestAggregationFunction.DEFAULT_TDIGEST_COMPRESSION);
        tDigest.add(value);
        _expectedTDigest.add(tDigest);

        ByteBuffer byteBuffer = ByteBuffer.allocate(tDigest.byteSize());
        tDigest.asBytes(byteBuffer);
        _expectedSelectionTDigests.add(ByteArray.toHexString(byteBuffer.array()));

        // Add the TDigest column.
        byte[] bytes = byteBuffer.array();
        map.put(TDIGEST_COLUMN, bytes);

        // Add the GroupBy column.
        String group = groups[_random.nextInt(groups.length)];
        map.put(GROUPBY_COLUMN, group);

        // Generate the groups.
        TDigest groupTDigest = _expectedGroupBy.get(group);
        if (groupTDigest == null) {
            _expectedGroupBy.put(group, tDigest);
        } else {
            groupTDigest.add(tDigest);
        }

        GenericRow genericRow = new GenericRow();
        genericRow.init(map);
        rows.add(genericRow);
    }

    RecordReader recordReader = new GenericRowRecordReader(rows, schema);
    SegmentIndexCreationDriverImpl driver = new SegmentIndexCreationDriverImpl();
    driver.init(config, recordReader);
    driver.build();

    SegmentDirectory.createFromLocalFS(driver.getOutputDirectory(), ReadMode.mmap);
    recordReader.rewind();

    TDigest actual = new TDigest(PercentileTDigestAggregationFunction.DEFAULT_TDIGEST_COMPRESSION);
    GenericRow reuse = new GenericRow();
    while (recordReader.hasNext()) {
        reuse = recordReader.next(reuse);
        actual.add(TDigest.fromBytes(ByteBuffer.wrap((byte[]) reuse.getValue(TDIGEST_COLUMN))));
    }
    return recordReader;
}

From source file:edu.umn.cs.spatialHadoop.indexing.BTRPartitioner.java

@Override
public void write(DataOutput out) throws IOException {
    mbr.write(out);//from  w w w.j  a v a2 s . co m
    out.writeInt(columns);
    out.writeInt(rows);
    ByteBuffer bbuffer = ByteBuffer.allocate((xSplits.length + ySplits.length) * 8);
    for (double xSplit : xSplits)
        bbuffer.putDouble(xSplit);
    for (double ySplit : ySplits)
        bbuffer.putDouble(ySplit);
    if (bbuffer.hasRemaining())
        throw new RuntimeException("Did not calculate buffer size correctly");
    out.write(bbuffer.array(), bbuffer.arrayOffset(), bbuffer.position());
}

From source file:com.amazonaws.services.dynamodbv2.replication.impl.ShardSubscriberImpl.java

/**
 * Converts Kinesis record to DynamoDB Streams record.
 *
 * @param record//ww  w  .  j  a v a2 s . c om
 *            The Kinesis record
 * @return The DynamoDB Streams record
 * @throws IOException
 *             Exception in conversion
 */
protected com.amazonaws.services.dynamodbv2.model.Record convertToStreamRecord(final Record record)
        throws IOException {
    final ByteBuffer data = record.getData();
    LOGGER.debug("deserializing record data: " + (new String(data.array())));
    return MAPPER.readValue(data.array(), com.amazonaws.services.dynamodbv2.model.Record.class);
}

From source file:com.freshplanet.ane.GoogleCloudStorageUpload.tasks.UploadToGoogleCloudStorageAsyncTask.java

private byte[] createHeaderByteArrayImage(byte[] prefix, byte[] suffix, byte[] image) {
    Log.d(TAG, "[UploadToGoogleCloudStorageAsyncTask] Entering createHeaderByteArrayImage()");

    int size = image.length + prefix.length + suffix.length;
    ByteBuffer bytes = ByteBuffer.allocate(size);
    bytes.put(prefix);/*from  w  w  w  . j a v a  2  s  .c o  m*/
    bytes.put(image);
    bytes.put(suffix);

    Log.d(TAG, "[UploadToGoogleCloudStorageAsyncTask] Exiting createHeaderByteArrayImage()");
    return bytes.array();
}

From source file:org.jmangos.sniffer.handler.PKTLogHandler.java

/**
 * (non-Javadoc)//  w  ww  . java 2 s  . co m
 * 
 * @see org.jmangos.sniffer.handler.PacketLogHandler#onDecodePacket(org.jmangos
 *      .sniffer.network.model.NetworkChannel,
 *      org.jmangos.sniffer.enums.Direction, java.lang.Integer,
 *      java.lang.Integer, byte[], int)
 */
@Override
public void onDecodePacket(final NetworkChannel channel, final Direction direction, final Integer size,
        final Integer opcode, final byte[] data, final int frame) {
    if (!isInit()) {
        init();
    }
    try {
        final ByteBuffer buffer = ByteBuffer.allocate(4 + 4 + 4 + 4 + 4 + data.length + 4);
        buffer.order(ByteOrder.LITTLE_ENDIAN);
        buffer.put(direction.getValue());
        buffer.putInt(channel.hashCode());
        buffer.putInt(frame);
        buffer.putInt(0);
        buffer.putInt(data.length + 4);
        buffer.putInt(opcode);
        buffer.put(data);
        this.fous.write(buffer.array());
    } catch (final IOException e) {
        e.printStackTrace();
    }
}

From source file:fr.amap.viewer3d.loading.shader.Shader.java

private void extractActiveUniforms() {

    IntBuffer buf = IntBuffer.allocate(1);
    gl.glGetProgramiv(programId, GL3.GL_ACTIVE_UNIFORMS, buf);

    IntBuffer size = IntBuffer.allocate(40);
    IntBuffer length = IntBuffer.allocate(40);
    ByteBuffer nm = ByteBuffer.allocate(256);
    IntBuffer type = IntBuffer.allocate(1);

    for (int i = 0; i < buf.get(0); i++) {
        gl.glGetActiveUniform(programId, i, 40, length, size, type, nm);
        String uniformName = new String(ArrayUtils.subarray(nm.array(), 0, length.get(0)));

        uniformMap.put(uniformName, gl.glGetUniformLocation(programId, uniformName));
    }//from www  .  ja v a 2s.  co m
}

From source file:fr.amap.viewer3d.loading.shader.Shader.java

private void extractActiveAttributes() {

    IntBuffer buf = IntBuffer.allocate(1);
    gl.glGetProgramiv(programId, GL3.GL_ACTIVE_ATTRIBUTES, buf);

    IntBuffer size = IntBuffer.allocate(40);
    IntBuffer length = IntBuffer.allocate(40);
    ByteBuffer nm = ByteBuffer.allocate(256);
    IntBuffer type = IntBuffer.allocate(1);

    for (int i = 0; i < buf.get(0); i++) {
        gl.glGetActiveAttrib(programId, i, 40, length, size, type, nm);
        String attributeName = new String(ArrayUtils.subarray(nm.array(), 0, length.get(0)));

        attributeMap.put(attributeName, gl.glGetAttribLocation(programId, attributeName));
    }//from   w w  w  .  ja v  a  2  s .com
}

From source file:io.klerch.alexa.state.handler.AWSIotStateHandler.java

private String getState(final AlexaScope scope) throws AlexaStateException {
    final String thingName = getThingName(scope);

    createThingIfNotExisting(scope);/*from  w  ww . j  ava 2 s.c  o  m*/

    final GetThingShadowRequest awsRequest = new GetThingShadowRequest().withThingName(thingName);
    try {
        final GetThingShadowResult response = awsDataClient.getThingShadow(awsRequest);
        final ByteBuffer buffer = response.getPayload();

        try {
            return (buffer != null && buffer.hasArray()) ? new String(buffer.array(), "UTF-8") : "{}";
        } catch (UnsupportedEncodingException e) {
            final String error = format("Could not handle received contents of thing-shadow '%1$s'", thingName);
            log.error(error, e);
            throw AlexaStateException.create(error).withCause(e).withHandler(this).build();
        }
    }
    // if a thing does not have a shadow this is a usual exception
    catch (com.amazonaws.services.iotdata.model.ResourceNotFoundException e) {
        log.info(e);
        // we are fine with a thing having no shadow what just means there's nothing to read out for the model
        // return an empty JSON to indicate nothing is in the thing shadow
        return "{}";
    }
}

From source file:com.github.cambierr.lorawanpacket.semtech.Rxpk.java

public JSONObject toJson() throws MalformedPacketException {
    JSONObject output = new JSONObject();

    output.put("time", time);
    output.put("tmst", tmst);
    output.put("freq", freq);
    output.put("chan", chan);
    output.put("rfch", rfch);
    output.put("stat", stat);
    output.put("modu", modu.name());

    if (modu.equals(Modulation.LORA)) {
        output.put("codr", codr);
        output.put("lsnr", lsnr);
    }//from   w w w  . j  av  a 2s  .  co  m

    output.put("datr", datr);
    output.put("rssi", rssi);
    output.put("size", size);

    ByteBuffer bb = ByteBuffer.allocate(384);
    data.toRaw(bb);
    output.put("data", Base64.getEncoder()
            .encodeToString(Arrays.copyOfRange(bb.array(), 0, bb.capacity() - bb.remaining())));

    return output;
}