Example usage for io.netty.buffer ByteBuf readableBytes

Introduction

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

Prototype

public abstract int readableBytes();

Source Link

Document

Returns the number of readable bytes which is equal to (this.writerIndex - this.readerIndex) .

Usage

From source file:com.flowpowered.network.processor.simple.SimpleMessageProcessor.java

License:MIT License

@Override
public final synchronized ByteBuf processOutbound(ChannelHandlerContext ctx, final ByteBuf input,
        ByteBuf buffer) {/*from ww  w.  j  a  v a  2 s.co  m*/
    int remaining;
    while ((remaining = input.readableBytes()) > 0) {
        int clamped = Math.min(remaining, capacity);
        input.readBytes(encodingByteBuffer, 0, clamped);
        writeEncode(encodingByteBuffer, clamped);
        int read;
        while ((read = readEncode(encodingByteBuffer)) > 0) {
            buffer.writeBytes(encodingByteBuffer, 0, read);
        }
    }
    return buffer;
}

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From source file:com.flowpowered.network.processor.simple.SimpleMessageProcessor.java

License:MIT License

@Override
public final synchronized ByteBuf processInbound(ChannelHandlerContext ctx, final ByteBuf input,
        ByteBuf buffer) {//w  ww . j av a 2 s.c  o m
    int remaining;
    while ((remaining = input.readableBytes()) > 0) {
        int clamped = Math.min(remaining, capacity);
        input.readBytes(decodingByteBuffer, 0, clamped);
        writeDecode(decodingByteBuffer, clamped);
        int read;
        while ((read = readDecode(decodingByteBuffer)) > 0) {
            buffer.writeBytes(decodingByteBuffer, 0, read);
        }
    }
    return buffer;
}

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From source file:com.flowpowered.networking.pipeline.MessageProcessorDecoderTest.java

License:MIT License

@Test
public void test() throws Exception {
    // Preprocessor basically is split into two parts
    // Part 1 is just a direct copy
    // Part 2 negates all bytes before copying
    final AtomicReference<MessageProcessor> processor = new AtomicReference<>();
    MessageProcessorDecoder processorDecoder = new MessageProcessorDecoder(null) {
        @Override/* w w w.  j a  va  2  s  . c o m*/
        protected MessageProcessor getProcessor() {
            return processor.get();
        }
    };

    // Set up a fake ChannelHandlerContext
    FakeChannelHandlerContext fake = ChannelHandlerContextFaker.setup();
    AtomicReference<ByteBuf> ref = new AtomicReference<>();
    fake.setReference(ref);
    LinkedList<byte[]> outputList = new LinkedList<byte[]>();

    Random r = new Random();

    // Get some random bytes for data
    byte[] input = new byte[LENGTH];
    r.nextBytes(input);

    boolean breakOccured = false;
    int position = 0;

    for (int i = 0; i < input.length;) {
        // Simulate real data read
        int burstSize = r.nextInt(512);
        // With a 1/10 chance of having an extra-large burst
        if (r.nextInt(10) == 0) {
            burstSize *= 10;
        }

        // Final burst needs to be clamped
        if (i + burstSize > input.length) {
            burstSize = input.length - i;
        }

        // And we can't negate in the middle of a burst
        if (i + burstSize > BREAK && !breakOccured) {
            burstSize = BREAK - i;
        }

        // Write info to a new ByteBuf
        final ByteBuf buf = Unpooled.buffer(burstSize);
        buf.retain();
        buf.writeBytes(input, i, burstSize);
        i += burstSize;

        // Fake a read
        processorDecoder.channelRead(fake, buf);

        final ByteBuf returned = ref.get();

        while (returned != null && true) {
            int packetSize = r.nextInt(128) + 1;
            if (r.nextInt(10) == 0) {
                packetSize *= 20;
            }

            if (packetSize > returned.readableBytes()) {
                packetSize = returned.readableBytes();
            }
            if (position + packetSize > BREAK && !breakOccured) {
                packetSize = BREAK - position;
            }
            if (position + packetSize > LENGTH) {
                packetSize = LENGTH - position;
            }

            if (packetSize == 0) {
                break;
            }

            byte[] array = new byte[packetSize];

            returned.readBytes(array);
            position += packetSize;

            if (position == BREAK) {
                processor.set(new NegatingProcessor(512));
                breakOccured = true;
            }
            outputList.add(array);
        }
    }

    // Get the output data and combine into one array
    byte[] output = new byte[LENGTH];
    int i = 0;
    for (byte[] array : outputList) {
        for (int j = 0; j < array.length; j++) {
            output[i++] = array[j];
        }
    }

    for (i = 0; i < input.length; i++) {
        byte expected = i < BREAK ? input[i] : (byte) ~input[i];
        if (output[i] != expected) {
            for (int j = Math.max(0, i - 10); j <= i + 10; j++) {
                System.out.println(j + ") " + Integer.toBinaryString(j < BREAK ? input[j] : (byte) ~input[j])
                        + " " + Integer.toBinaryString(output[j]));
            }
        }

        if (i < BREAK) {
            assertTrue("Input/Output mismatch at position " + i + ". Expected " + input[i] + " but got "
                    + output[i] + ". Break is: " + BREAK, output[i] == input[i]);
        } else {
            assertTrue(
                    "Input/Output mismatch at position " + i + ", after the processor change. Expected "
                            + (byte) ~input[i] + " but got " + output[i] + ". Break is: " + BREAK,
                    output[i] == (byte) ~input[i]);
        }
    }
}

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From source file:com.flysoloing.learning.network.netty.http2.helloworld.server.HelloWorldHttp2Handler.java

License:Apache License

public int onDataRead(ChannelHandlerContext ctx, int streamId, ByteBuf data, int padding, boolean endOfStream) {
    int processed = data.readableBytes() + padding;
    if (endOfStream) {
        sendResponse(ctx, streamId, data.retain());
    }//from w w  w  . j  ava2  s .  co m
    return processed;
}

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From source file:com.flysoloing.learning.network.netty.portunification.PortUnificationServerHandler.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {
    // Will use the first five bytes to detect a protocol.
    if (in.readableBytes() < 5) {
        return;//from  www. ja v  a 2s  . co  m
    }

    if (isSsl(in)) {
        enableSsl(ctx);
    } else {
        final int magic1 = in.getUnsignedByte(in.readerIndex());
        final int magic2 = in.getUnsignedByte(in.readerIndex() + 1);
        if (isGzip(magic1, magic2)) {
            enableGzip(ctx);
        } else if (isHttp(magic1, magic2)) {
            switchToHttp(ctx);
        } else if (isFactorial(magic1)) {
            switchToFactorial(ctx);
        } else {
            // Unknown protocol; discard everything and close the connection.
            in.clear();
            ctx.close();
        }
    }
}

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From source file:com.foilen.smalltools.net.commander.channel.CommanderDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) throws Exception {

    logger.debug("Trying to decode a message. Readable bytes {}", in.readableBytes());

    // classNameSize:int
    int len = in.readInt();

    // className:String
    String className = in.readBytes(len).toString(CharsetTools.UTF_8);

    // jsonContentSize:int
    len = in.readInt();//from w  w  w  .j  a v a  2  s .  c om

    // jsonContent:String
    String jsonContent = in.readBytes(len).toString(CharsetTools.UTF_8);

    // Add the JSON runnable to the list
    logger.debug("Decoding class {} with json {}", className, jsonContent);

    out.add(JsonTools.readFromString(jsonContent, Class.forName(className)));
    logger.debug("Completely got a {}", className);
}

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From source file:com.friz.audio.network.AudioSessionContext.java

License:Open Source License

public void writeResponse(HttpVersion version, ByteBuf container) {
    HttpResponse response = new DefaultHttpResponse(version, HttpResponseStatus.OK);
    HttpHeaders.setContentLength(response, container.readableBytes());

    channel.write(response);//  www .ja  v a  2  s  . c  o m
    channel.write(container);
    channel.writeAndFlush(LastHttpContent.EMPTY_LAST_CONTENT);
}

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From source file:com.friz.audio.network.AudioSessionContext.java

License:Open Source License

/**
 * Processes the file requests.// w  w  w .  jav a 2s. c  o  m
 * @throws IOException The exception thrown if an i/o error occurs.
 */
public void processFileQueue() {
    FileRequestEvent request;
    synchronized (fileQueue) {
        request = fileQueue.pop();
        if (fileQueue.isEmpty()) {
            idle = true;
        } else {
            service.addAudioContext(this);
            idle = false;
        }
    }
    if (request != null) {
        int type = request.getType();
        int file = request.getFile();
        int crc = request.getCrc();
        int version = request.getVersion();
        HttpVersion http = request.getHttp();

        ByteBuf buf = Unpooled.buffer();
        if (type == 255 && file == 255) {
            buf = Unpooled.wrappedBuffer(server.getCache().getChecksum());
        } else {
            if (server.getCache().getReferenceTable(type).getEntry(file).getCrc() != crc
                    || server.getCache().getReferenceTable(type).getEntry(file).getVersion() != version) {
                writeResponse(http, buf);
                return;
            }

            try {
                buf = Unpooled.wrappedBuffer(server.getCache().getStore().read(type, file));
                if (type != 255)
                    buf = buf.slice(0, buf.readableBytes() - 2);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        writeResponse(http, buf);
    }
}

---

From source file:com.friz.game.network.codec.LoginDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buf, List<Object> out) throws Exception {
    int type = buf.readUnsignedByte();
    int size = buf.readUnsignedShort();

    int major = buf.readInt();
    int minor = buf.readInt();
    boolean dropped = buf.readBoolean();

    int rsaSize = buf.readUnsignedShort();
    byte[] rsa = new byte[rsaSize];
    buf.readBytes(rsa);/*from www.  ja v  a2s  .  co m*/

    ByteBuf rsaBuf = Unpooled.wrappedBuffer(
            new BigInteger(rsa).modPow(Constants.LOGIN_EXPONENT, Constants.LOGIN_MODULUS).toByteArray());
    int rsaMagic = rsaBuf.readUnsignedByte();

    int[] key = new int[4];
    for (int i = 0; i < key.length; i++)
        key[i] = rsaBuf.readInt();

    int block = rsaBuf.readUnsignedByte();

    if (block == 1 || block == 3) {
        int code = rsaBuf.readUnsignedMedium();
        rsaBuf.readerIndex(rsaBuf.readerIndex() + 1);
    } else if (block == 0) {
        int trusted = rsaBuf.readInt();
    } else if (block == 2) {
        rsaBuf.readerIndex(rsaBuf.readerIndex() + 4);
    }

    String password = BufferUtils.getString(rsaBuf);

    long serverKey = rsaBuf.readLong();
    long clientKey = rsaBuf.readLong();

    byte[] xtea = new byte[buf.readableBytes()];
    buf.readBytes(xtea);
    ByteBuf xteaBuf = Unpooled.wrappedBuffer(new XTEA(xtea).decrypt(key).toByteArray());

    String username = "";
    boolean asString = xteaBuf.readBoolean();
    if (asString)
        username = BufferUtils.getString(xteaBuf);
    else
        username = BufferUtils.getBase37(xteaBuf);

    int display = xteaBuf.readUnsignedByte();
    int width = xteaBuf.readUnsignedShort();
    int height = xteaBuf.readUnsignedShort();

    int multisample = xteaBuf.readByte();

    byte[] uid = new byte[24];
    for (int i = 0; i < uid.length; i++)
        uid[i] = xteaBuf.readByte();

    String token = BufferUtils.getString(xteaBuf);

    int prefSize = xteaBuf.readUnsignedByte();
    int prefVersion = xteaBuf.readUnsignedByte();
    int aPref = xteaBuf.readUnsignedByte();
    int antiAliasing = xteaBuf.readUnsignedByte();
    int aPref1 = xteaBuf.readUnsignedByte();
    int bloom = xteaBuf.readUnsignedByte();
    int brightness = xteaBuf.readUnsignedByte();
    int buildArea = xteaBuf.readUnsignedByte();
    int aPref2 = xteaBuf.readUnsignedByte();
    int flickeringEffects = xteaBuf.readUnsignedByte();
    int fog = xteaBuf.readUnsignedByte();
    int groundBlending = xteaBuf.readUnsignedByte();
    int groundDecoration = xteaBuf.readUnsignedByte();
    int idleAnimations = xteaBuf.readUnsignedByte();
    int lighting = xteaBuf.readUnsignedByte();
    int sceneryShadows = xteaBuf.readUnsignedByte();
    int aPref3 = xteaBuf.readUnsignedByte();
    int nullPref = xteaBuf.readUnsignedByte();
    int orthoMode = xteaBuf.readUnsignedByte();
    int particles = xteaBuf.readUnsignedByte();
    int removeRoofs = xteaBuf.readUnsignedByte();
    int maxScreenSize = xteaBuf.readUnsignedByte();
    int skyboxes = xteaBuf.readUnsignedByte();
    int mobShadows = xteaBuf.readUnsignedByte();
    int textures = xteaBuf.readUnsignedByte();
    int desiredToolkit = xteaBuf.readUnsignedByte();
    int nullPref1 = xteaBuf.readUnsignedByte();
    int water = xteaBuf.readUnsignedByte();
    int screenSize = xteaBuf.readUnsignedByte();
    int customCursors = xteaBuf.readUnsignedByte();
    int graphics = xteaBuf.readUnsignedByte();
    int cpu = xteaBuf.readUnsignedByte();
    int aPref4 = xteaBuf.readUnsignedByte();
    int safeMode = xteaBuf.readUnsignedByte();
    int aPref5 = xteaBuf.readUnsignedByte();
    int aPref6 = xteaBuf.readUnsignedByte();
    int aPref7 = xteaBuf.readUnsignedByte();
    int soundEffectsVolume = xteaBuf.readUnsignedByte();
    int areaSoundsVolume = xteaBuf.readUnsignedByte();
    int voiceOverVolume = xteaBuf.readUnsignedByte();
    int musicVolume = xteaBuf.readUnsignedByte();
    int themeMusicVolume = xteaBuf.readUnsignedByte();
    int steroSound = xteaBuf.readUnsignedByte();

    int infoVersion = xteaBuf.readUnsignedByte();
    int osType = xteaBuf.readUnsignedByte();
    boolean arch64 = xteaBuf.readBoolean();
    int versionType = xteaBuf.readUnsignedByte();
    int vendorType = xteaBuf.readUnsignedByte();
    int jMajor = xteaBuf.readUnsignedByte();
    int jMinor = xteaBuf.readUnsignedByte();
    int jPatch = xteaBuf.readUnsignedByte();
    boolean falseBool = xteaBuf.readBoolean();
    int heapSize = xteaBuf.readUnsignedShort();
    int pocessorCount = xteaBuf.readUnsignedByte();
    int cpuPhyscialMemory = xteaBuf.readUnsignedMedium();
    int cpuClock = xteaBuf.readUnsignedShort();
    String gpuName = BufferUtils.getJagString(xteaBuf);
    String aString = BufferUtils.getJagString(xteaBuf);
    String dxVersion = BufferUtils.getJagString(xteaBuf);
    String aString1 = BufferUtils.getJagString(xteaBuf);
    int gpuDriverMonth = xteaBuf.readUnsignedByte();
    int gpuDriverYear = xteaBuf.readUnsignedShort();
    String cpuType = BufferUtils.getJagString(xteaBuf);
    String cpuName = BufferUtils.getJagString(xteaBuf);
    int cpuThreads = xteaBuf.readUnsignedByte();
    int anInt = xteaBuf.readUnsignedByte();
    int anInt1 = xteaBuf.readInt();
    int anInt2 = xteaBuf.readInt();
    int anInt3 = xteaBuf.readInt();
    int anInt4 = xteaBuf.readInt();
    String aString2 = BufferUtils.getString(xteaBuf);

    int anInt5 = xteaBuf.readInt();
    int anInt6 = xteaBuf.readInt();
    int anInt7 = xteaBuf.readInt();
    String aString3 = BufferUtils.getString(xteaBuf);

    boolean hasAdditional = xteaBuf.readBoolean();
    String additionalInfo = "";
    if (hasAdditional)
        additionalInfo = BufferUtils.getString(xteaBuf);

    int anInt8 = xteaBuf.readUnsignedByte();
    int anInt9 = xteaBuf.readUnsignedByte();
    int anInt10 = xteaBuf.readUnsignedByte();
    int anInt11 = xteaBuf.readInt();
    String aString4 = BufferUtils.getString(xteaBuf);

    boolean newWorld = xteaBuf.readBoolean();
    int lobbyId = xteaBuf.readUnsignedShort();

    int[] checksums = new int[(xteaBuf.readableBytes() / 4) + 1];
    for (int i = 0; i < checksums.length; i++) {
        if (i == 32)
            checksums[i] = -1;
        else
            checksums[i] = xteaBuf.readInt();
    }
}

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From source file:com.friz.lobby.network.codec.LobbyInitDecoder.java

License:Open Source License

@Override
protected void decode(ChannelHandlerContext ctx, ByteBuf buf, List<Object> out) throws Exception {
    if (!buf.isReadable())
        return;/*  w  w w  .  java2 s  . c o m*/

    out.add(new LobbyInitRequestEvent(buf.readUnsignedByte()));

    if (buf.isReadable())
        out.add(new RecycleEvent(buf.readBytes(buf.readableBytes())));
}

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