Example usage for io.netty.buffer ByteBuf readerIndex

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf readerIndex.

Prototype

public abstract int readerIndex();

Source Link

Document

Returns the readerIndex of this buffer.

Usage

From source file:com.digitalpetri.opcua.stack.server.handlers.UaTcpServerAsymmetricHandler.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
    buffer = buffer.order(ByteOrder.LITTLE_ENDIAN);

    while (buffer.readableBytes() >= HEADER_LENGTH && buffer.readableBytes() >= getMessageLength(buffer)) {

        int messageLength = getMessageLength(buffer);
        MessageType messageType = MessageType.fromMediumInt(buffer.getMedium(buffer.readerIndex()));

        switch (messageType) {
        case OpenSecureChannel:
            onOpenSecureChannel(ctx, buffer.readSlice(messageLength));
            break;

        case CloseSecureChannel:
            logger.debug("Received CloseSecureChannelRequest");
            if (secureChannel != null) {
                server.closeSecureChannel(secureChannel);
            }/*from  w  w  w . j av a 2s.  c o  m*/
            buffer.skipBytes(messageLength);
            break;

        default:
            throw new UaException(StatusCodes.Bad_TcpMessageTypeInvalid,
                    "unexpected MessageType: " + messageType);
        }
    }
}

From source file:com.digitalpetri.opcua.stack.server.handlers.UaTcpServerHelloHandler.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
    buffer = buffer.order(ByteOrder.LITTLE_ENDIAN);

    while (buffer.readableBytes() >= HEADER_LENGTH && buffer.readableBytes() >= getMessageLength(buffer)) {

        int messageLength = getMessageLength(buffer);
        MessageType messageType = MessageType.fromMediumInt(buffer.getMedium(buffer.readerIndex()));

        switch (messageType) {
        case Hello:
            onHello(ctx, buffer.readSlice(messageLength));
            break;

        default:/*from  w  w w.j a v  a  2s.  co  m*/
            throw new UaException(StatusCodes.Bad_TcpMessageTypeInvalid,
                    "unexpected MessageType: " + messageType);
        }
    }
}

From source file:com.digitalpetri.opcua.stack.server.handlers.UaTcpServerSymmetricHandler.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buffer, List<Object> out) throws Exception {
    buffer = buffer.order(ByteOrder.LITTLE_ENDIAN);

    while (buffer.readableBytes() >= HEADER_LENGTH && buffer.readableBytes() >= getMessageLength(buffer)) {

        int messageLength = getMessageLength(buffer);
        MessageType messageType = MessageType.fromMediumInt(buffer.getMedium(buffer.readerIndex()));

        switch (messageType) {
        case SecureMessage:
            onSecureMessage(ctx, buffer.readSlice(messageLength), out);
            break;

        default://from w  w  w.  j  a va2 s  .  c om
            out.add(buffer.readSlice(messageLength).retain());
        }
    }
}

From source file:com.ebay.jetstream.messaging.transport.netty.serializer.StreamMessageDecoder.java

License:MIT License

@SuppressWarnings("resource")
@Override/*  w  w w  . ja  v a 2s  .com*/
protected Object decode(ChannelHandlerContext ctx, ByteBuf in) throws Exception {
    ByteBuf frame = (ByteBuf) super.decode(ctx, in);
    if (frame == null) {
        return null;
    }

    int readerIndex = frame.readerIndex();
    byte version = frame.readByte();
    frame.readerIndex(readerIndex);

    if (version == KRYO_STREAM_VERSION) {
        return decodeAsKryo(frame);
    } else {
        return new CompactObjectInputStream(new ByteBufInputStream(frame), classResolver).readObject();
    }
}

From source file:com.eightkdata.mongowp.bson.netty.NettyBsonLowLevelReader.java

License:Open Source License

public boolean hasNext(@Tight @ConservesIndexes ByteBuf byteBuf) {
    return byteBuf.getByte(byteBuf.readerIndex()) != 0x00;
}

From source file:com.eightkdata.mongowp.bson.netty.OffHeapNettyBsonLowLevelReader.java

License:Open Source License

@Override
BsonDocument readDocument(@Loose @ModifiesIndexes ByteBuf byteBuf) throws NettyBsonReaderException {
    int length = byteBuf.readInt();
    int significantLenght = length - 4; //the final 0x00 must be included

    ByteBuf significantSlice = byteBuf.readSlice(significantLenght);

    assert byteBuf.getByte(byteBuf.readerIndex() - 1) == 0x00;

    return new IterableNettyBsonDocument(significantSlice, this);
}

From source file:com.eightkdata.mongowp.bson.netty.OffHeapNettyBsonLowLevelReader.java

License:Open Source License

@Override
BsonArray readArray(@Loose @ModifiesIndexes ByteBuf byteBuf) throws NettyBsonReaderException {
    int length = byteBuf.readInt();
    int significantLenght = length - 4; //the final 0x00 must be included

    ByteBuf significantSlice = byteBuf.readSlice(significantLenght);

    assert byteBuf.getByte(byteBuf.readerIndex() - 1) == 0x00;

    return new IterableNettyBsonArray(significantSlice, this);
}

From source file:com.eightkdata.mongowp.bson.netty.PooledNettyStringReader.java

License:Open Source License

@Override
public String readString(@Loose @ModifiesIndexes ByteBuf byteBuf, boolean likelyCacheable) {
    int stringLength = byteBuf.readInt();

    String str = stringPool.fromPool(likelyCacheable, byteBuf.slice(byteBuf.readerIndex(), stringLength - 1));

    byteBuf.skipBytes(stringLength);/*www. j a v a 2 s  .c om*/

    return str;
}

From source file:com.eightkdata.mongowp.server.decoder.InsertMessageDecoder.java

License:Open Source License

@Override
@SuppressFBWarnings(value = {//  w ww. j  a  v a2s.c  o  m
        "RV_RETURN_VALUE_IGNORED_NO_SIDE_EFFECT" }, justification = "Findbugs thinks ByteBuf#readerIndex(...) has no"
                + "side effect")
public InsertMessage decode(ByteBuf buffer, RequestBaseMessage requestBaseMessage)
        throws InvalidNamespaceException, InvalidBsonException {
    try {
        MyBsonContext context = new MyBsonContext(buffer);

        int flags = buffer.readInt();
        String fullCollectionName = stringReader.readCString(buffer, true);

        ByteBuf docBuf = buffer.slice(buffer.readerIndex(), buffer.readableBytes());
        docBuf.retain();

        buffer.readerIndex(buffer.writerIndex());

        ByteBufIterableDocumentProvider documents = new ByteBufIterableDocumentProvider(docBuf, docReader);

        //TODO: improve the way database and cache are pooled
        return new InsertMessage(requestBaseMessage, context, getDatabase(fullCollectionName).intern(),
                getCollection(fullCollectionName).intern(),
                EnumInt32FlagsUtil.isActive(Flag.CONTINUE_ON_ERROR, flags), documents);
    } catch (NettyBsonReaderException ex) {
        throw new InvalidBsonException(ex);
    }
}

From source file:com.facebook.nifty.core.ThriftFrameDecoder.java

License:Apache License

private TTransport tryDecodeFramedMessage(ChannelHandlerContext ctx, ByteBuf buffer) {
    // Framed messages are prefixed by the size of the frame (which doesn't include the
    // framing itself).

    int messageStartReaderIndex = buffer.readerIndex();
    // Read the i32 frame contents size
    int messageContentsLength = buffer.getInt(messageStartReaderIndex);
    // The full message is larger by the size of the frame size prefix
    int messageLength = messageContentsLength + MESSAGE_FRAME_SIZE;

    if (messageContentsLength > maxFrameSize) {
        ctx.fireExceptionCaught(//  w  w w. ja  v  a2s.co  m
                new TooLongFrameException("Maximum frame size of " + maxFrameSize + " exceeded"));
    }

    int messageContentsOffset = messageStartReaderIndex + MESSAGE_FRAME_SIZE;
    if (messageLength == 0) {
        // Zero-sized frame: just ignore it and return nothing
        buffer.readerIndex(messageContentsOffset);
        return null;
    } else if (buffer.readableBytes() < messageLength) {
        // Full message isn't available yet, return nothing for now
        return null;
    } else {
        // Full message is available, return it
        ByteBuf messageBuffer = extractFrame(buffer, messageContentsOffset, messageContentsLength);
        ThriftMessage message = new ThriftMessage(messageBuffer, ThriftTransportType.FRAMED);
        buffer.readerIndex(messageStartReaderIndex + messageLength);
        return new TNiftyTransport(ctx.channel(), message);
    }
}