Example usage for io.netty.buffer ByteBuf release

List of usage examples for io.netty.buffer ByteBuf release

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Introduction

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

Prototype

boolean release();

Source Link

Document

Decreases the reference count by 1 and deallocates this object if the reference count reaches at 0 .

Usage

From source file:com.uber.tchannel.tracing.TracingPropagationTest.java

License:Open Source License

private static TraceResponse callDownstreamThriftAsync(String remainingEncodings) throws Exception {
    ThriftRequest<Example> request = new ThriftRequest.Builder<Example>("tchannel-name", "Behavior::asynctrace")
            .setTimeout(1, TimeUnit.MINUTES).setBody(new Example(remainingEncodings, 0)).build();

    TFuture<ThriftResponse<Example>> responsePromise = subChannel.send(request, tchannel.getHost(),
            tchannel.getListeningPort());

    ThriftResponse<Example> thriftResponse = responsePromise.get();
    assertNull(thriftResponse.getError());
    String json = thriftResponse.getBody(Example.class).getAString();
    thriftResponse.release();// ww  w .  j  a v a 2 s  . co m
    ByteBuf byteBuf = UnpooledByteBufAllocator.DEFAULT.buffer(json.length());
    byteBuf.writeBytes(json.getBytes());
    TraceResponse response = new JSONSerializer().decodeBody(byteBuf, TraceResponse.class);
    byteBuf.release();
    return response;
}

From source file:com.vethrfolnir.game.network.login.LoginServerClientHandler.java

License:Open Source License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf buff = (ByteBuf) msg;

    int opcode = buff.readUnsignedByte();

    switch (opcode) {
    case 0xBB:// ww w .j  a  v a 2s  .  c  om
        ServerKill.read(serverClient, buff);
        break;
    case 0xA1:
        int newId = buff.readInt();
        RecievedAlternativeId.read(serverClient, buff, newId);
        break;
    default:
        log.warn("Unknown packet 0x" + PrintData.fillHex(opcode, 2) + ". Dump: "
                + PrintData.printData(buff.nioBuffer(0, buff.writerIndex())));
        break;
    }

    buff.release();
}

From source file:com.vethrfolnir.game.network.mu.MuChannelHandler.java

License:Open Source License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf buff = (msg instanceof ByteBuffer) ? ctx.alloc().buffer().writeBytes((ByteBuffer) msg)
            : (ByteBuf) msg;//ww w  .j  a v a2 s . com

    buff.readerIndex(2);

    int opcode = buff.readUnsignedByte();
    switch (opcode) { // double opcode
    case 0xf1:
    case 0xf3:
    case 0x0e:
    case 0x03:
        buff.readerIndex(buff.readerIndex() - 1);
        opcode = buff.readUnsignedShort(); // ex 0xF1_03
        break;
    default:
        break;
    }

    if (opcode == 0xe00) { // Time packet?
        buff.clear();
        buff.release();
        return;
    }

    ReadPacket packet = clientpackets.get(opcode);

    if (packet != null) {
        MuClient client = ctx.channel().attr(MuClient.ClientKey).get();
        //System.out.println("Got opcode: 0x"+PrintData.fillHex(opcode, 2)+ " packet = \n"+packet.getClass().getSimpleName());
        packet.read(client, buff);
    } else {
        log.warn("Unknown packet[opcode = 0x" + PrintData.fillHex(opcode, 2) + "]. Dump: ");
        log.warn(PrintData.printData(buff.nioBuffer(0, buff.writerIndex())));
    }

    //log.warn(PrintData.printData(buff.nioBuffer(0, buff.writerIndex())));

    if (buff.refCnt() > 0) {
        //System.out.println("Handler Release when packet[opcode = 0x"+PrintData.fillHex(opcode, 2)+"]");
        buff.release();
    }
}

From source file:com.vethrfolnir.game.network.mu.packets.MuReadPacket.java

License:Open Source License

protected String readS(ByteBuf buff, int max) {
    try {/* w w  w .  j  a  va  2 s  .  com*/
        ByteBuf copy = buff.readBytes(max);
        String str = new String(copy.array(), "ISO-8859-1");
        copy.release();
        return str.trim();
    } catch (UnsupportedEncodingException e) {
        log.warn("Failed reading string!", e);
    }

    return null;
}

From source file:com.vethrfolnir.login.network.game.GameChannelHandler.java

License:Open Source License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf buff = (ByteBuf) msg;

    int opcode = buff.readUnsignedByte();

    switch (opcode) {
    case 0x0A: // first registration
        ServerRegistration.read(null, buff, nameService, ctx);
        break;/*  w w  w  . ja  v a 2 s .  c o  m*/
    case 0x0B: {
        nameService.getServer(ctx.channel()).setOnlinePlayers(buff.readInt());
        ;
    }
    default:
        log.warn("Unknown packet[opcode = 0x" + PrintData.fillHex(opcode, 2) + "]");
        break;
    }
    buff.release();
}

From source file:com.vethrfolnir.login.network.mu.ClientChannelHandler.java

License:Open Source License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf buff = (ByteBuf) msg;

    switch (buff.getUnsignedByte(0)) {
    case 0xC1:/*from  www  .  ja  va2  s  .c  o  m*/
    case 0xC2:
    case 0xC3:
    case 0xC4:
        break;
    default:
        ctx.close();
        buff.release(); //TODO: maybe add a flood protector?
        log.warn("Client[" + ctx.channel() + "] is not a mu online client! Disconnecting!");
        return;
    }

    // we are not interested in the header and size;
    buff.readerIndex(2);

    int opcode = buff.readUnsignedShort();

    switch (opcode) {

    case 0xf4_03: { // Request Server information
        int serverId = buff.readUnsignedByte();
        ByteBuf buf = ctx.alloc().heapBuffer().order(ByteOrder.LITTLE_ENDIAN);

        WritePacket packet = SendServerInfo.StaticPacket;
        packet.write(null, buf, nameService, serverId);
        packet.markLength(buf);
        ;

        ctx.writeAndFlush(buf);
        break;
    }
    case 0xf4_06: { // Request Server list
        ByteBuf buf = ctx.alloc().heapBuffer().order(ByteOrder.LITTLE_ENDIAN);

        WritePacket packet = SendServerLists.StaticPacket;
        packet.write(null, buf, nameService);
        packet.markLength(buf);

        ctx.writeAndFlush(buf);
        break;
    }
    default:
        log.warn("Unkown packet[OPCODE = " + Integer.toHexString(opcode) + "] Dump: "
                + PrintData.printData(buff.nioBuffer(0, buff.writerIndex())));
        ctx.close();
        break;
    }
    buff.release();
}

From source file:com.vmware.xenon.common.http.netty.NettyHttpEventStreamHandler.java

License:Open Source License

@Override
protected Object decode(ChannelHandlerContext ctx, ByteBuf buffer) throws Exception {
    ByteBuf rawEvent = (ByteBuf) super.decode(ctx, buffer);
    if (rawEvent == null) {
        return null;
    }/*from   w  ww  .  ja v  a2s . c  om*/
    String serializedEvent = rawEvent.toString(ServerSentEventConverter.ENCODING_CHARSET);
    rawEvent.release();
    ServerSentEvent event = ServerSentEventConverter.INSTANCE.deserialize(serializedEvent);
    EventStreamMessage message = new EventStreamMessage();
    message.event = event;
    return message;
}

From source file:com.whizzosoftware.hobson.dsc.api.codec.DSCFrameDecoder.java

License:Open Source License

@Override
protected Object decode(ChannelHandlerContext ctx, ByteBuf buffer) throws Exception {
    logger.trace("decode: {}", buffer.toString(CharsetUtil.UTF_8));

    ByteBuf frame = (ByteBuf) super.decode(ctx, buffer);

    if (frame != null) {
        try {/*from   w  w  w.j a v a  2  s. c  om*/
            if (frame.readableBytes() >= 3) {
                String cmdId = new String(new byte[] { frame.getByte(0), frame.getByte(1), frame.getByte(2) });
                switch (cmdId) {
                case CodeRequired.ID:
                    return new CodeRequired();
                case CommandAcknowledge.ID:
                    return new CommandAcknowledge();
                case CommandError.ID:
                    return new CommandError();
                case LCDUpdate.ID:
                    int lineNumber = frame.getByte(3) - '0';
                    int columnNumber = Integer
                            .parseInt(new String(new byte[] { frame.getByte(4), frame.getByte(5) }));
                    int length = Integer
                            .parseInt(new String(new byte[] { frame.getByte(6), frame.getByte(7) }));
                    return new LCDUpdate(lineNumber, columnNumber,
                            frame.slice(8, length).toString(CharsetUtil.UTF_8));
                case LEDStatus.ID:
                    return new LEDStatus(LEDStatus.LEDType.forOrdinal(frame.getByte(3) - '0'),
                            LEDStatus.Status.forOrdinal(frame.getByte(4) - '0'));
                case SoftwareVersion.ID:
                    return new SoftwareVersion(frame.slice(3, 4).toString(CharsetUtil.UTF_8));
                case PartitionBusy.ID:
                    return new PartitionBusy(frame.getByte(3) - '0');
                case PartitionNotReady.ID:
                    return new PartitionNotReady(frame.getByte(3) - '0');
                case PartitionReady.ID:
                    return new PartitionReady(frame.getByte(3) - '0');
                case TroubleLEDOff.ID:
                    return new TroubleLEDOff(frame.getByte(3) - '0');
                case ZoneOpen.ID:
                    return new ZoneOpen(Integer.parseInt(
                            new String(new byte[] { frame.getByte(3), frame.getByte(4), frame.getByte(5) })));
                case ZoneRestored.ID:
                    return new ZoneRestored(Integer.parseInt(
                            new String(new byte[] { frame.getByte(3), frame.getByte(4), frame.getByte(5) })));
                case TimeDateBroadcast.ID:
                    return new TimeDateBroadcast(frame.slice(3, 10).toString(CharsetUtil.UTF_8));
                default:
                    logger.debug("Ignoring unknown command frame: {}", buffer.toString(CharsetUtil.UTF_8));
                    return null;
                }
            } else {
                throw new CorruptedFrameException("Frame should not be less than 3 bytes");
            }
        } finally {
            frame.release();
        }
    } else {
        return null;
    }
}

From source file:com.whizzosoftware.hobson.ssdp.SSDPInboundHandler.java

License:Open Source License

@Override
public void channelRead(ChannelHandlerContext channelHandlerContext, Object o) throws Exception {
    final DatagramPacket p = (io.netty.channel.socket.DatagramPacket) o;
    ByteBuf buf = p.content();
    byte[] b = new byte[buf.readableBytes()];
    buf.readBytes(b);// w  ww  . j  a va 2s .  com
    final String data = new String(b, 0, b.length, "UTF8");
    buf.release();
    logger.trace("Received data from {}: {}", p.sender().getHostString(), data);

    // publish the advertisement
    try {
        final SSDPPacket packet = SSDPPacket.createWithData(data);
        // ignore packets that originated from Hobson
        if (!p.sender().getAddress().equals(InetAddress.getLocalHost())) {
            if ("M-SEARCH".equals(packet.getMethod())) {
                context.executeInEventLoop(new Runnable() {
                    @Override
                    public void run() {
                        try {
                            context.processDiscoveryRequest(p.sender(), packet);
                        } catch (Throwable e) {
                            logger.error("Error processing discovery packet", e);
                        }
                    }
                });
            } else if (packet.getUSN() != null && packet.getLocation() != null) {
                // execute this in the event loop so we can get on with processing UDP packets as
                // quickly as possible
                context.executeInEventLoop(new Runnable() {
                    @Override
                    public void run() {
                        context.publishDeviceAdvertisement(
                                new DeviceAdvertisement.Builder(packet.getUSN(), SSDPPacket.PROTOCOL_ID)
                                        .rawData(data).object(packet).build(),
                                false);
                    }
                });
            } else {
                logger.trace("Ignoring SSDP packet with USN {} and location: {}", packet.getUSN(),
                        packet.getLocation());
            }
        }
    } catch (Throwable e) {
        logger.error("Error creating SSDP packet", e);
    }
}

From source file:com.wx3.galacdecks.networking.HttpHandler.java

License:Open Source License

private static void sendHttpResponse(ChannelHandlerContext ctx, FullHttpRequest req, FullHttpResponse res) {
    if (res.getStatus().code() != 200) {
        ByteBuf buf = Unpooled.copiedBuffer(res.getStatus().toString(), CharsetUtil.UTF_8);
        res.content().writeBytes(buf);/*from   ww w .  j  av  a 2s  . co m*/
        buf.release();
        HttpHeaders.setContentLength(res, res.content().readableBytes());
    }

    // Send the response and close the connection if necessary.
    ChannelFuture f = ctx.channel().writeAndFlush(res);
    if (!HttpHeaders.isKeepAlive(req) || res.getStatus().code() != 200) {
        f.addListener(ChannelFutureListener.CLOSE);
    }
}