Example usage for io.netty.buffer ByteBuf readByte

Introduction

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

Prototype

public abstract byte readByte();

Source Link

Document

Gets a byte at the current readerIndex and increases the readerIndex by 1 in this buffer.

Usage

From source file:com.ltln.modules.openflow.core.protocol.ver13.OFBsnVrfCounterSerializerVer13.java

public static OFBsnVrfCounter readFrom(ByteBuf bb) throws OFParseError {
    try {//from ww  w.  j  a va  2s  . c om
        return ofWireValue(bb.readByte());
    } catch (IllegalArgumentException e) {
        throw new OFParseError(e);
    }
}

From source file:com.ltln.modules.openflow.core.protocol.ver14.OFControllerRoleReasonSerializerVer14.java

public static OFControllerRoleReason readFrom(ByteBuf bb) throws OFParseError {
    try {/*from ww  w  .jav a 2  s .  c  om*/
        return ofWireValue(bb.readByte());
    } catch (IllegalArgumentException e) {
        throw new OFParseError(e);
    }
}

From source file:com.ltln.modules.openflow.core.protocol.ver14.OFRequestforwardReasonSerializerVer14.java

public static OFRequestforwardReason readFrom(ByteBuf bb) throws OFParseError {
    try {/*from w  w w. j av  a 2 s  .  co m*/
        return ofWireValue(U8.f(bb.readByte()));
    } catch (IllegalArgumentException e) {
        throw new OFParseError(e);
    }
}

From source file:com.ltln.modules.openflow.core.protocol.ver14.OFTableReasonSerializerVer14.java

public static OFTableReason readFrom(ByteBuf bb) throws OFParseError {
    try {//from   w ww  .  j  av  a2 s .  c  o  m
        return ofWireValue(bb.readByte());
    } catch (IllegalArgumentException e) {
        throw new OFParseError(e);
    }
}

From source file:com.mastfrog.scamper.codec.MessageCodec.java

License:Open Source License

/**
 * Determine if this codec recognizes this ByteBuf.
 * <p>// www.  ja v  a  2s.c  o  m
 * This method will move the reader index of the passed ByteBuf <i>forward one byte</i>
 * if it returns true.  If it returns false, the ByteBuf's state will be 
 * unaltered.
 * <p>
 * The default implementation checks if the first byte equals the return
 * value of <code>magicNumber()</code>.  Implementations that delegate
 * between multiple codecs should call this method for each until one
 * accepts it.
 * 
 * @param data
 * @return 
 */
public boolean accept(ByteBuf data) {
    int old = data.readerIndex();
    byte b = data.readByte();
    boolean result = magicNumber() == b;
    if (!result) {
        data.readerIndex(old);
    }
    return result;
}

From source file:com.mastfrog.scamper.codec.RawMessageCodec.java

License:Open Source License

@Override
public MessageTypeAndBuffer decode(ByteBuf buf, ChannelHandlerContext ctx, int sctpChannel) {
    byte first = buf.readByte();
    if (first == magicNumber()) {
        MessageType messageType = messageTypes.forByteBuf(buf);
        return new MessageTypeAndBuffer(messageType, buf, sctpChannel);
    }//from   w  ww .  ja  v a 2s  .co m
    return new MessageTypeAndBuffer(MessageType.createUnknown(-1, -1), buf.resetReaderIndex(), sctpChannel);
}

From source file:com.mastfrog.scamper.compression.CompressingCodec.java

License:Open Source License

@Override
public MessageTypeAndBuffer decode(ByteBuf buf, ChannelHandlerContext ctx, int sctpChannel) {
    byte magic = buf.readByte();
    if (magic == magicNumber()) {
        try {//from ww  w .  j  a v  a2 s .  c o m
            return decodeImpl(buf, ctx, sctpChannel);
        } catch (Exception ex) {
            return Exceptions.chuck(ex);
        }
    } else {
        buf.resetReaderIndex();
        return raw.decode(buf, ctx, sctpChannel);
    }
}

From source file:com.mastfrog.scamper.MessageTypeRegistry.java

License:Open Source License

/**
 * Decode a message type from the <i>current position</i> of the
 * passed ByteBuf.// w ww. j  a  v  a 2 s  .c  om
 * @param buf
 * @return 
 */
public MessageType forByteBuf(ByteBuf buf) {
    if (buf.readableBytes() >= 2) {
        byte one = buf.readByte();
        byte two = buf.readByte();
        for (MessageType mt : types) {
            if (mt.match(one, two)) {
                buf.discardReadBytes();
                return mt;
            }
        }
        return MessageType.createUnknown(one, two);
    }
    buf.resetReaderIndex();
    return MessageType.createUnknown((byte) 0, (byte) 0);
}

From source file:com.mikesilversides.mod1.ServerTest.StubClientHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    //ctx.write(msg);
    ByteBuf in = (ByteBuf) msg;
    final Byte inByte = in.readByte();
    System.out.println("received from stub1 byte = " + inByte);
    in.release();/*from   w ww .  ja  v  a 2s . c om*/

    if (startSent) {
        if (inByte == 2) { // 2=ack
            System.out.println("received ack from stub1");
            startSent = false;
        } else {
            System.out.println("unexpected reply received, closing connection");
            ctx.close();
            stubClientPlayer.addChatMessage(
                    new ChatComponentText("unexpected stub1 reply received, connection closed"));
        }
    } else {
        //stubClientPlayer.addChatMessage(new ChatComponentText("stub1 sent byte = "+inByte));

        // This code creates a new task which will be executed by the server during the next tick,
        //  for example see MinecraftServer.updateTimeLightAndEntities(), just under section
        //      this.theProfiler.startSection("jobs");
        //  In this case, the task is to call messageHandlerOnServer.processMessage(message, sendingPlayer)
        //final WorldServer playerWorldServer = sendingPlayer.getServerForPlayer();
        //playerWorldServer.addScheduledTask(new Runnable() {
        MinecraftServer.getServer().addScheduledTask(new Runnable() {
            public void run() {
                processMessage(inByte);
            }
        });
    }
}

From source file:com.mobius.software.android.iotbroker.mqtt.parser.MQParser.java

License:Open Source License

public static ByteBuf next(ByteBuf buf) throws MalformedMessageException {
    buf.markReaderIndex();//from  www.  java  2  s.  c  o m
    MessageType type = MessageType.valueOf(((buf.readByte() >> 4) & 0xf));

    switch (type) {
    case PINGREQ:
    case PINGRESP:
    case DISCONNECT:
        buf.resetReaderIndex();
        return Unpooled.buffer(2);
    default:
        LengthDetails length = decodeLength(buf);
        buf.resetReaderIndex();
        if (length.getLength() == 0)
            return null;
        int result = length.getLength() + length.getSize() + 1;
        return result <= buf.readableBytes() ? Unpooled.buffer(result) : null;
    }
}