Example usage for io.netty.buffer ByteBuf writeBytes

Introduction

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

Prototype

public abstract ByteBuf writeBytes(ByteBuffer src);

Source Link

Document

Transfers the specified source buffer's data to this buffer starting at the current writerIndex until the source buffer's position reaches its limit, and increases the writerIndex by the number of the transferred bytes.

Usage

From source file:com.hop.hhxx.example.http2.helloworld.server.HelloWorldHttp2Handler.java

License:Apache License

@Override
public void onHeadersRead(ChannelHandlerContext ctx, int streamId, Http2Headers headers, int padding,
        boolean endOfStream) {
    if (endOfStream) {
        ByteBuf content = ctx.alloc().buffer();
        content.writeBytes(RESPONSE_BYTES.duplicate());
        ByteBufUtil.writeAscii(content, " - via HTTP/2");
        sendResponse(ctx, streamId, content);
    }/*from   ww w .  j  a  va 2  s .  c  om*/
}

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From source file:com.hop.hhxx.example.http2.tiles.Http2RequestHandler.java

License:Apache License

private void handlePage(ChannelHandlerContext ctx, String streamId, int latency, FullHttpRequest request) {
    byte[] body = io.netty.example.http2.tiles.Html.body(latency);
    ByteBuf content = ctx.alloc().buffer(io.netty.example.http2.tiles.Html.HEADER.length + body.length
            + io.netty.example.http2.tiles.Html.FOOTER.length);
    content.writeBytes(io.netty.example.http2.tiles.Html.HEADER);
    content.writeBytes(body);/*from   ww w . ja  v  a2 s.  co m*/
    content.writeBytes(Html.FOOTER);
    FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK, content);
    response.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
    sendResponse(ctx, streamId, latency, response, request);
}

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From source file:com.hxr.javatone.concurrency.netty.official.factorial.NumberEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Number msg, ByteBuf out) throws Exception {
    // Convert to a BigInteger first for easier implementation.
    BigInteger v;/*from www. j av a 2  s .c  o m*/
    if (msg instanceof BigInteger) {
        v = (BigInteger) msg;
    } else {
        v = new BigInteger(String.valueOf(msg));
    }

    // Convert the number into a byte array.
    byte[] data = v.toByteArray();
    int dataLength = data.length;

    // Write a message.
    out.writeByte((byte) 'F'); // magic number
    out.writeInt(dataLength); // data length
    out.writeBytes(data); // data
}

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From source file:com.ibasco.agql.protocols.valve.source.query.handlers.SourceQueryPacketAssembler.java

License:Open Source License

/**
 * Re-assemble's the packets from the container.
 *
 * @param splitPackets The {@link SplitPacketContainer} to be re-assembled
 *
 * @return Returns true if the re-assembly process has completed successfully
 *///from   w  w  w . j a v  a2s  .  c  om
private boolean reassembleSplitPackets(SplitPacketContainer splitPackets, ByteBuf packetBuffer,
        boolean isCompressed, int decompressedSize, int packetChecksum) {
    log.trace("reassembleSplitPackets : START");

    if (packetBuffer == null)
        throw new IllegalArgumentException("Packet Buffer is not initialized");

    splitPackets.forEachEntry(packetEntry -> {
        log.debug("--> Packet #{} : {}", packetEntry.getKey(), packetEntry.getValue());

        //Throw exception if compression is set. Not yet supported.
        if (isCompressed)
            throw new IllegalStateException("Compression is not yet supported at this time sorry");

        //TODO: Is this still needed?
        /*if(isCompressed) {
        //From Steam Condenser (thanks Koraktor)
        try {
            ByteArrayInputStream stream = new ByteArrayInputStream(packetData);
            stream.read();
            stream.read();
            BZip2CompressorInputStream bzip2 = new BZip2CompressorInputStream(stream);
            byte[] uncompressedPacketData = new byte[uncompressedSize];
            bzip2.read(uncompressedPacketData, 0, uncompressedSize);
                
            CRC32 crc32 = new CRC32();
            crc32.update(uncompressedPacketData);
            int crc32checksum = (int) crc32.getValue();
                
            if (crc32checksum != packetChecksum) {
                throw new PacketFormatException(
                        "CRC32 checksum mismatch of uncompressed packet data.");
            }
            packetData = uncompressedPacketData;
        } catch(IOException e) {
            throw new SteamCondenserException(e.getMessage(), e);
        }
        }*/

        packetBuffer.writeBytes(packetEntry.getValue());
    });

    log.trace("reassembleSplitPackets : END");

    return packetBuffer.readableBytes() > 0;
}

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From source file:com.ibasco.agql.protocols.valve.source.query.SourcePacketBuilder.java

License:Open Source License

/**
 * Convert a source packet instance to it's byte representation
 *
 * @param packet The {@link SourceServerPacket} to convert
 *
 * @return Returns the deconstructed packet in byte array form
 *//*from  ww  w. j  ava2s. co m*/
@Override
public byte[] deconstruct(SourceServerPacket packet) {
    if (packet == null)
        throw new IllegalArgumentException("Invalid packet specified in the arguments.");

    byte[] payload = packet.getPayload();
    byte[] protocolHeader = packet.getProtocolHeader();
    byte[] packetHeader = packet.getPacketHeader();

    int payloadSize = payload != null ? payload.length : 0;
    int protocolHeaderSize = protocolHeader != null ? protocolHeader.length : 0;
    int packetHeaderSize = packetHeader != null ? packetHeader.length : 0;
    int packetSize = protocolHeaderSize + packetHeaderSize + payloadSize;

    //Allocate our buffer
    final ByteBuf buf = createBuffer(packetSize);
    byte[] data;

    try {
        //Include Protocol Header if available
        if (protocolHeaderSize > 0)
            buf.writeBytes(protocolHeader);

        //Include Packet Header
        if (packetHeaderSize > 0)
            buf.writeBytes(packetHeader);

        //Include Payload (if available)
        if (payloadSize > 0)
            buf.writeBytes(payload);

        //Store the buffer into a byte array
        data = new byte[buf.readableBytes()];
        if (data.length > 0) {
            buf.readBytes(data);
        }
    } finally {
        buf.release();
    }

    log.debug("Constructing '{}' with total of {} bytes of data", packet.getClass().getSimpleName(),
            data.length);

    //Return the backing array representation
    return data;
}

---

From source file:com.ibasco.agql.protocols.valve.source.query.SourceRconPacketBuilder.java

License:Open Source License

@Override
public byte[] deconstruct(SourceRconPacket packet) {
    //1) size = int (4 bytes)
    //2) id = int (4 bytes)
    //3) type = int (4 bytes)
    //4) body = string (length + 1 null byte)
    //5) trailer = null byte

    int id = packet.getId();
    int type = packet.getType();
    final String body = StringUtils.defaultString(packet.getBody());
    int packetSize = 10 + body.length();
    final ByteBuf buf = createBuffer(packetSize);
    byte[] data;//from  ww w .  j a  va  2s. co  m
    try {
        buf.writeIntLE(packetSize);
        buf.writeIntLE(id);
        buf.writeIntLE(type);
        buf.writeBytes(body.getBytes());
        buf.writeByte(0);
        buf.writeByte(0);
        data = new byte[buf.readableBytes()];
        buf.readBytes(data);
    } finally {
        buf.release();
    }
    return data;
}

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From source file:com.ibasco.agql.protocols.valve.steam.master.MasterServerPacketBuilder.java

License:Open Source License

@Override
public byte[] deconstruct(MasterServerPacket packet) {
    if (packet == null)
        throw new IllegalArgumentException("Invalid packet specified in the arguments.");

    byte[] payload = packet.getPayload();
    byte[] packetHeader = packet.getPacketHeader();

    int payloadSize = payload != null ? payload.length : 0;
    int packetHeaderSize = packetHeader != null ? packetHeader.length : 0;
    int packetSize = packetHeaderSize + payloadSize;

    //Allocate our buffer
    final ByteBuf buf = createBuffer(packetSize);
    byte[] data;//from   w ww.j  av a2 s.co  m

    try {
        //Include Packet Header
        if (packetHeaderSize > 0)
            buf.writeBytes(packetHeader);
        //Include Payload (if available)
        if (payloadSize > 0)
            buf.writeBytes(payload);
        //Store the buffer into a byte array
        data = new byte[buf.readableBytes()];
        if (data.length > 0) {
            buf.readBytes(data);
        }
    } finally {
        buf.release();
    }

    log.debug("Constructing '{}' with total of {} bytes of data", packet.getClass().getSimpleName(),
            data.length);

    //Return the backing array representation
    return data;
}

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From source file:com.ibasco.agql.protocols.valve.steam.master.packets.MasterServerRequestPacket.java

License:Open Source License

@Override
public byte[] getPayload() {
    String filterString = this.filter.toString();
    int payloadSize = (3 + filterString.length() + (this.startIp.length()));
    final ByteBuf payload = PooledByteBufAllocator.DEFAULT.buffer(payloadSize);
    try {/*from   w  w w.  j av a 2 s .c  o  m*/
        payload.writeByte(getRegion());
        payload.writeBytes(getStartIp().getBytes());
        payload.writeByte(0); //terminating byte
        payload.writeBytes(filterString.getBytes());
        byte[] payloadBytes = new byte[payload.readableBytes()];
        payload.readBytes(payloadBytes);
        return payloadBytes;
    } finally {
        payload.release();
    }
}

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From source file:com.ibm.crail.namenode.rpc.netty.common.NettyRequest.java

License:Apache License

public int write(ByteBuf buffer) throws IOException {
    buffer.writeLong(cookie); //8
    buffer.writeShort(cmd); //2
    buffer.writeShort(type); //2
    int written = 12;

    nioBuffer.clear();/*from   w  w  w .  ja  v  a 2 s.c  om*/
    switch (type) {
    case NameNodeProtocol.REQ_CREATE_FILE:
        written += createFileReq.write(nioBuffer);
        break;
    case NameNodeProtocol.REQ_GET_FILE:
        written += fileReq.write(nioBuffer);
        break;
    case NameNodeProtocol.REQ_SET_FILE:
        written += setFileReq.write(nioBuffer);
        break;
    case NameNodeProtocol.REQ_REMOVE_FILE:
        written += removeReq.write(nioBuffer);
        break;
    case NameNodeProtocol.REQ_RENAME_FILE:
        written += renameFileReq.write(nioBuffer);
        break;
    case NameNodeProtocol.REQ_GET_BLOCK:
        written += getBlockReq.write(nioBuffer);
        break;
    case NameNodeProtocol.REQ_GET_LOCATION:
        written += getLocationReq.write(nioBuffer);
        break;
    case NameNodeProtocol.REQ_SET_BLOCK:
        written += setBlockReq.write(nioBuffer);
        break;
    case NameNodeProtocol.REQ_GET_DATANODE:
        written += getDataNodeReq.write(nioBuffer);
        break;
    case NameNodeProtocol.REQ_DUMP_NAMENODE:
        written += dumpNameNodeReq.write(nioBuffer);
        break;
    case NameNodeProtocol.REQ_PING_NAMENODE:
        written += pingNameNodeReq.write(nioBuffer);
        break;
    }
    /* instead of flip you want to clear it */
    nioBuffer.clear();
    buffer.writeBytes(nioBuffer);
    return written;
}

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From source file:com.ibm.crail.namenode.rpc.netty.common.NettyResponse.java

License:Apache License

public int write(ByteBuf buffer) {
    buffer.writeLong(cookie);//from   w w  w . j av a2  s.  com
    buffer.writeShort(type);
    buffer.writeShort(error);

    int written = 12;
    nioBuffer.clear();
    switch (type) {
    case NameNodeProtocol.RES_VOID:
        written += voidRes.write(nioBuffer);
        break;
    case NameNodeProtocol.RES_CREATE_FILE:
        written += createFileRes.write(nioBuffer);
        break;
    case NameNodeProtocol.RES_GET_FILE:
        written += getFileRes.write(nioBuffer);
        break;
    case NameNodeProtocol.RES_DELETE_FILE:
        written += delFileRes.write(nioBuffer);
        break;
    case NameNodeProtocol.RES_RENAME_FILE:
        written += renameRes.write(nioBuffer);
        break;
    case NameNodeProtocol.RES_GET_BLOCK:
        written += getBlockRes.write(nioBuffer);
        break;
    case NameNodeProtocol.RES_GET_LOCATION:
        written += getLocationRes.write(nioBuffer);
        break;
    case NameNodeProtocol.RES_GET_DATANODE:
        written += getDataNodeRes.write(nioBuffer);
        break;
    case NameNodeProtocol.RES_PING_NAMENODE:
        written += pingNameNodeRes.write(nioBuffer);
        break;
    }
    /* reset and copy becuase we want to copy the whole capacity of the nio buffer */
    nioBuffer.clear();
    buffer.writeBytes(nioBuffer);
    return written;
}

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