Example usage for java.nio ByteBuffer get

Introduction

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

Prototype

public abstract byte get(int index);

Source Link

Document

Returns the byte at the specified index and does not change the position.

Usage

From source file:org.jmangos.sniffer.network.model.impl.WOWNetworkChannel.java

@Override
public void onResiveClientData(final long frameNumber, final byte[] buffer) {
    final ByteBuffer bytebuf = ByteBuffer.wrap(buffer);
    long opcode = 0;
    long size = 0;
    byte[] data;//from   w w  w  . j av a  2 s  . c o  m
    bytebuf.order(ByteOrder.LITTLE_ENDIAN);
    if (getChannelState().contains(State.AUTHED)) {
        final long header = bytebuf.getInt() & 0xFFFFFFFF;
        size = header >> 13;
        opcode = (header & 0x1FFF);
        data = new byte[(int) size];
        bytebuf.get(data);
    } else {
        size = bytebuf.getShort();
        opcode = bytebuf.getInt();
        data = new byte[(int) size - 4];
        bytebuf.get(data);
        // old (opcode == 0x1a72) | (opcode == 0x3f3)
        if ((opcode == 0x1aa1) | (opcode == 0x9f1)) {
            this.log.debug("Init cryptography system for channel {}", this.getChannelId());
            addChannelState(State.AUTHED);
            this.csPacketBuffer.getCrypt().init(this.woWKeyReader.getKey());
            this.scPacketBuffer.getCrypt().init(this.woWKeyReader.getKey());
        }
    }
    this.log.debug(String.format("Frame: %d; Resive packet %s Opcode: 0x%x\n", frameNumber, "CMSG", opcode));
    for (final PacketLogHandler logger : this.packetLoggers) {
        logger.onDecodePacket(this, Direction.CLIENT, (int) size, (int) opcode, data, (int) frameNumber);
    }
}

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From source file:com.navercorp.pinpoint.collector.receiver.thrift.udp.SpanStreamUDPPacketHandlerFactory.java

private byte[] getComponentData(ByteBuffer buffer, HeaderTBaseDeserializer deserializer) {
    if (buffer.remaining() < 2) {
        logger.warn("Can't available {} fixed buffer.", 2);
        return null;
    }/*from   w w w  .j  a  v  a2s . c o  m*/

    int componentSize = 0xffff & buffer.getShort();
    if (buffer.remaining() < componentSize) {
        logger.warn("Can't available {} fixed buffer.", buffer.remaining());
        return null;
    }

    byte[] componentData = new byte[componentSize];
    buffer.get(componentData);

    return componentData;
}

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From source file:android.syncml.pim.vcard.VCardDataBuilder.java

private String encodeString(String originalString, String targetCharset) {
    if (mSourceCharset.equalsIgnoreCase(targetCharset)) {
        return originalString;
    }//w w  w. jav  a2  s.  c  om
    Charset charset = Charset.forName(mSourceCharset);
    ByteBuffer byteBuffer = charset.encode(originalString);
    // byteBuffer.array() "may" return byte array which is larger than
    // byteBuffer.remaining(). Here, we keep on the safe side.
    byte[] bytes = new byte[byteBuffer.remaining()];
    byteBuffer.get(bytes);
    try {
        return new String(bytes, targetCharset);
    } catch (UnsupportedEncodingException e) {
        Log.e(LOG_TAG, "Failed to encode: charset=" + targetCharset);
        return new String(bytes);
    }
}

---

From source file:org.jmangos.sniffer.network.model.impl.WOWNetworkChannel.java

@Override
synchronized public void onResiveServerData(final long frameNumber, final byte[] buffer) {
    final ByteBuffer bytebuf = ByteBuffer.wrap(buffer);
    bytebuf.order(ByteOrder.LITTLE_ENDIAN);
    long opcode = 0;
    long size = 0;
    byte[] data = null;
    if (getChannelState().contains(State.AUTHED)) {
        final long header = bytebuf.getInt() & 0xFFFFFFFF;
        size = header >> 13;//w  w w .jav  a 2  s .  c  o  m
        opcode = header & 0x1FFF;
        data = new byte[(int) size];
        bytebuf.get(data);
    } else {
        size = bytebuf.getShort();
        opcode = bytebuf.getInt();
        bytebuf.mark();
        data = new byte[(int) size - 4];
        bytebuf.get(data);
        bytebuf.reset();
        // old 0xc0b
        if ((opcode == 0x221) & !getChannelState().contains(State.NOT_ACCEPT_SEED)) {
            this.log.debug("Get new Seed");
            final byte[] serverSeed = new byte[16];
            final byte[] clientSeed = new byte[16];
            for (int i = 0; i < 16; i++) {
                serverSeed[i] = bytebuf.get();
            }
            for (int i = 0; i < 16; i++) {
                clientSeed[i] = bytebuf.get();
            }
            bytebuf.get();
            this.csPacketBuffer.getCrypt().setEncryptionSeed(clientSeed);
            this.scPacketBuffer.getCrypt().setEncryptionSeed(serverSeed);
        }

    }
    this.log.debug(String.format("Frame: %d; Resive packet %s Opcode: 0x%x OpcodeSize: %d", frameNumber, "SMSG",
            opcode, size));
    for (final PacketLogHandler logger : this.packetLoggers) {
        logger.onDecodePacket(this, Direction.SERVER, (int) size, (int) opcode, data, (int) frameNumber);
    }
}

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From source file:cn.iie.haiep.hbase.value.Bytes.java

/**
 * This method will get a sequence of bytes from pos -> limit,
 * but will restore pos after./*from w w  w  .j ava 2 s.co  m*/
 * @param buf
 * @return byte array
 */
public static byte[] getBytes(ByteBuffer buf) {
    int savedPos = buf.position();
    byte[] newBytes = new byte[buf.remaining()];
    buf.get(newBytes);
    buf.position(savedPos);
    return newBytes;
}

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From source file:AutoDJ.metaReader.OggIndexer.java

/**
 * Extracts the Image from a FLAC picture structure
 * http://flac.sourceforge.net/format.html#metadata_block_picture
 * Expects a base64 encoded string/*from www. ja  v a2 s.  c  o  m*/
 * 
 * @param String pictureBlock (base64)
 * @return BufferedImage
 */
BufferedImage readAlbumImage(String pictureBlock) {
    if (pictureBlock == null || pictureBlock.isEmpty())
        return null;

    byte[] pictureBytes = Base64.decodeBase64(pictureBlock);
    BufferedImage img = null;

    String mimeString = "", description = "";
    ByteBuffer picBuff = ByteBuffer.allocate(pictureBytes.length);
    picBuff.put(pictureBytes);
    picBuff.rewind();

    /*int picType = */picBuff.getInt(); // not interesting, discard

    // read the mime type string
    int mimeStrLength = picBuff.getInt();
    byte[] mimeBytes = new byte[mimeStrLength];
    picBuff.get(mimeBytes);
    mimeString = new String(mimeBytes);

    // read the string describing the image 
    int descStrLength = picBuff.getInt();
    byte[] descBytes = new byte[descStrLength];
    picBuff.get(descBytes);
    try {
        description = new String(descBytes, "UTF-8");
    } catch (Exception e) {
        e.printStackTrace();
    }

    // skip over some unnecessary information
    /*int picWidth  = */picBuff.getInt();
    /*int picHeight = */picBuff.getInt();
    /*int colDepth  = */picBuff.getInt();
    /*int idxColors = */picBuff.getInt();

    // read the image data
    int picDataLength = picBuff.getInt();
    byte[] picBytes = new byte[picDataLength];
    picBuff.get(picBytes);
    try {
        img = ImageIO.read(new ByteArrayInputStream(picBytes));
    } catch (Exception e) {
        e.printStackTrace();
    }

    return img;
}

---

From source file:io.druid.query.aggregation.HyperloglogAggregatorFactory.java

@Override
public Object deserialize(Object object) {
    log.debug("class name: [%s]:value [%s]", object.getClass().getName(), object);

    final String k = (String) object;
    final byte[] ibmapByte = Base64.decodeBase64(k);

    final ByteBuffer buffer = ByteBuffer.wrap(ibmapByte);
    final int keylength = buffer.getInt();
    final int valuelength = buffer.getInt();

    TIntByteHashMap newIbMap;/*from www  .j a  v  a  2s. co  m*/

    if (keylength == 0) {
        newIbMap = new TIntByteHashMap();
    } else {
        final int[] keys = new int[keylength];
        final byte[] values = new byte[valuelength];

        for (int i = 0; i < keylength; i++) {
            keys[i] = buffer.getInt();
        }
        buffer.get(values);

        newIbMap = new TIntByteHashMap(keys, values);
    }

    return newIbMap;
}

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From source file:com.talis.storage.s3.S3StoreTest.java

@Override
protected Store getStore() throws Exception {
    bucketname = UUID.randomUUID().toString();
    Provider<S3Service> serviceProvider = initialiseServiceProvider();

    final S3Object stubObject = new S3Object("foo");
    objectFactory = new S3ObjectFactory(bucketname) {
        @Override/*from  w w  w .j  av a  2  s  .c o m*/
        public ExternalizableS3Object newObject(String key, int index, MediaType mediaType, ByteBuffer buffer)
                throws IOException {
            ExternalizableS3Object obj = new ExternalizableS3Object();
            obj.setKey(key + "/" + index);
            obj.setContentType(S3Store.TMB_CHUNK_TYPE.toString());
            obj.addMetadata(S3Store.ACTUAL_CONTENT_TYPE_HEADER, mediaType.toString());
            byte[] bytes = new byte[buffer.position()];
            buffer.rewind();
            buffer.get(bytes);
            obj.setDataInputStream(new ByteArrayInputStream(bytes));
            return obj;
        }
    };
    chunkHandler = new StubChunkHandler();

    return new S3Store(objectFactory, chunkHandler);
}

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From source file:edu.uci.ics.hyracks.dataflow.std.sort.util.DeletableFrameTupleAppenderTest.java

@Test
public void testAppend() throws Exception {
    int count = 10;
    ByteBuffer bufferRead = makeAFrame(cap, count, 0);
    DeletableFrameTupleAppender accessor = new DeletableFrameTupleAppender(recordDescriptor);
    accessor.reset(bufferRead);//from www  . j a  v a2 s .c o m
    ByteBuffer bufferWrite = ByteBuffer.allocate(cap);
    appender.clear(bufferWrite);
    for (int i = 0; i < accessor.getTupleCount(); i++) {
        appender.append(accessor, i);
    }
    for (int i = 0; i < bufferRead.capacity(); i++) {
        assertEquals(bufferRead.get(i), bufferWrite.get(i));
    }
}

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