Example usage for io.netty.buffer ByteBuf readInt

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

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Introduction

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

Prototype

public abstract int readInt();

Source Link

Document

Gets a 32-bit integer at the current readerIndex and increases the readerIndex by 4 in this buffer.

Usage

From source file:at.yawk.accordion.simulation.Simulation.java

License:Mozilla Public License

public static void main(String[] args) throws UnknownHostException, InterruptedException {
    Logger.getRootLogger().addAppender(new ConsoleAppender(new SimpleLayout(), ConsoleAppender.SYSTEM_OUT));
    Logger.getRootLogger().setLevel(Level.DEBUG);

    Simulation simulation = new Simulation();
    simulation.populate();/*from w w  w.j a  v  a  2  s  . c o  m*/
    TimeUnit.SECONDS.sleep(1);

    simulation.nodes.get(simulation.tiers[0][0]).getConnectionManager().getChannel("test").subscribe(msg -> {
        int len = msg.readInt();
        byte[] blob = new byte[len];
        msg.readBytes(blob);
        Log.getDefaultLogger().info("Received: " + new String(blob));
    });
    TimeUnit.SECONDS.sleep(1);

    ByteBuf msg = Unpooled.buffer();
    byte[] text = "ping".getBytes();
    msg.writeInt(text.length);
    msg.writeBytes(text);

    simulation.nodes.get(simulation.tiers[0][1]).getConnectionManager().getChannel("test").publish(msg);
}

From source file:bftsmart.communication.client.netty.NettyTOMMessageDecoder.java

License:Apache License

@Override
protected void decode(ChannelHandlerContext context, ByteBuf buffer, List<Object> list) throws Exception {

    // Wait until the length prefix is available.
    if (buffer.readableBytes() < Integer.BYTES) {
        return;/*from ww w. j a  v a2 s  .c  o m*/
    }

    int dataLength = buffer.getInt(buffer.readerIndex());

    //Logger.println("Receiving message with "+dataLength+" bytes.");

    // Wait until the whole data is available.
    if (buffer.readableBytes() < dataLength + Integer.BYTES) {
        return;
    }

    // Skip the length field because we know it already.
    buffer.skipBytes(Integer.BYTES);

    int size = buffer.readInt();
    byte[] data = new byte[size];
    buffer.readBytes(data);

    byte[] signature = null;
    size = buffer.readInt();

    if (size > 0) {
        signature = new byte[size];
        buffer.readBytes(signature);
    }

    DataInputStream dis = null;
    TOMMessage sm = null;

    try {
        ByteArrayInputStream bais = new ByteArrayInputStream(data);
        dis = new DataInputStream(bais);
        sm = new TOMMessage();
        sm.rExternal(dis);
        sm.serializedMessage = data;

        if (signature != null) {
            sm.serializedMessageSignature = signature;
            sm.signed = true;
        }

        if (!isClient) {
            rl.readLock().lock();
            if (!sessionTable.containsKey(sm.getSender())) {
                rl.readLock().unlock();

                NettyClientServerSession cs = new NettyClientServerSession(context.channel(), sm.getSender());

                rl.writeLock().lock();
                sessionTable.put(sm.getSender(), cs);
                logger.debug("Active clients: " + sessionTable.size());
                rl.writeLock().unlock();

            } else {
                rl.readLock().unlock();
            }
        }
        logger.debug("Decoded reply from " + sm.getSender() + " with sequence number " + sm.getSequence());
        list.add(sm);
    } catch (Exception ex) {

        logger.error("Failed to decode TOMMessage", ex);
    }
    return;
}

From source file:blazingcache.network.netty.DodoMessageUtils.java

License:Apache License

private static String readUTF8String(ByteBuf buf) {
    int len = buf.readInt();
    byte[] s = new byte[len];
    buf.readBytes(s);/*from   w w  w .jav  a  2  s .co  m*/
    return new String(s, StandardCharsets.UTF_8);
}

From source file:blazingcache.network.netty.DodoMessageUtils.java

License:Apache License

private static Object readEncodedSimpleValue(ByteBuf encoded) {
    byte _opcode = encoded.readByte();
    switch (_opcode) {
    case OPCODE_NULL_VALUE:
        return null;
    case OPCODE_STRING_VALUE:
        return readUTF8String(encoded);
    case OPCODE_INT_VALUE:
        return encoded.readInt();
    case OPCODE_MAP_VALUE: {
        int len = encoded.readInt();
        Map<Object, Object> ret = new HashMap<>();
        for (int i = 0; i < len; i++) {
            Object mapkey = readEncodedSimpleValue(encoded);
            Object value = readEncodedSimpleValue(encoded);
            ret.put(mapkey, value);//ww  w. j  a  v  a  2s.co  m
        }
        return ret;
    }
    case OPCODE_SET_VALUE: {
        int len = encoded.readInt();
        Set<Object> ret = new HashSet<>();
        for (int i = 0; i < len; i++) {
            Object o = readEncodedSimpleValue(encoded);
            ret.add(o);
        }
        return ret;
    }
    case OPCODE_LIST_VALUE: {
        int len = encoded.readInt();
        List<Object> ret = new ArrayList<>(len);
        for (int i = 0; i < len; i++) {
            Object o = readEncodedSimpleValue(encoded);
            ret.add(o);
        }
        return ret;
    }
    case OPCODE_BYTEARRAY_VALUE: {
        int len = encoded.readInt();
        byte[] ret = new byte[len];
        encoded.readBytes(ret);
        return ret;
    }
    case OPCODE_LONG_VALUE:
        return encoded.readLong();
    default:
        throw new RuntimeException("invalid opcode: " + _opcode);
    }
}

From source file:blazingcache.network.netty.DodoMessageUtils.java

License:Apache License

public static Message decodeMessage(ByteBuf encoded) {
    byte version = encoded.readByte();
    if (version != VERSION) {
        throw new RuntimeException("bad protocol version " + version);
    }//w w w. j a v  a 2 s  .  co  m
    int type = encoded.readInt();
    String messageId = readUTF8String(encoded);
    String replyMessageId = null;
    String workerProcessId = null;
    Map<String, Object> params = new HashMap<>();
    while (encoded.isReadable()) {
        byte opcode = encoded.readByte();
        switch (opcode) {
        case OPCODE_REPLYMESSAGEID:
            replyMessageId = readUTF8String(encoded);
            break;
        case OPCODE_WORKERPROCESSID:
            workerProcessId = readUTF8String(encoded);
            break;
        case OPCODE_PARAMETERS:
            int size = encoded.readInt();
            for (int i = 0; i < size; i++) {
                Object key = readEncodedSimpleValue(encoded);
                Object value = readEncodedSimpleValue(encoded);
                params.put((String) key, value);
            }
            break;
        default:
            throw new RuntimeException("invalid opcode: " + opcode);
        }
    }
    Message m = new Message(workerProcessId, type, params);
    if (replyMessageId != null) {
        m.replyMessageId = replyMessageId;
    }
    m.messageId = messageId;
    return m;

}

From source file:blazingcache.network.netty.MessageUtils.java

License:Apache License

private static Object readEncodedSimpleValue(ByteBuf encoded) {
    byte _opcode = encoded.readByte();
    switch (_opcode) {
    case OPCODE_NULL_VALUE:
        return null;
    case OPCODE_STRING_VALUE:
        return RawString.of(readUTF8String(encoded));
    case OPCODE_INT_VALUE:
        return encoded.readInt();
    case OPCODE_MAP_VALUE: {
        int len = encoded.readInt();
        Map<Object, Object> ret = new HashMap<>();
        for (int i = 0; i < len; i++) {
            Object mapkey = readEncodedSimpleValue(encoded);
            Object value = readEncodedSimpleValue(encoded);
            ret.put(mapkey, value);//from ww  w.j  a v a 2  s.c  o m
        }
        return ret;
    }
    case OPCODE_SET_VALUE: {
        int len = encoded.readInt();
        Set<Object> ret = new HashSet<>();
        for (int i = 0; i < len; i++) {
            Object o = readEncodedSimpleValue(encoded);
            ret.add(o);
        }
        return ret;
    }
    case OPCODE_LIST_VALUE: {
        int len = encoded.readInt();
        List<Object> ret = new ArrayList<>(len);
        for (int i = 0; i < len; i++) {
            Object o = readEncodedSimpleValue(encoded);
            ret.add(o);
        }
        return ret;
    }
    case OPCODE_BYTEARRAY_VALUE: {
        int len = encoded.readInt();
        byte[] ret = new byte[len];
        encoded.readBytes(ret);
        return ret;
    }
    case OPCODE_LONG_VALUE:
        return encoded.readLong();
    default:
        throw new RuntimeException("invalid opcode: " + _opcode);
    }
}

From source file:blazingcache.network.netty.MessageUtils.java

License:Apache License

public static Message decodeMessage(ByteBuf encoded) {
    byte version = encoded.readByte();
    if (version != VERSION) {
        throw new RuntimeException("bad protocol version " + version);
    }//w  ww.j  a v a2  s.c  om
    int type = encoded.readInt();
    String messageId = readUTF8String(encoded);
    String replyMessageId = null;
    String workerProcessId = null;
    Map<String, Object> params = new HashMap<>();
    while (encoded.isReadable()) {
        byte opcode = encoded.readByte();
        switch (opcode) {
        case OPCODE_REPLYMESSAGEID:
            replyMessageId = readUTF8String(encoded);
            break;
        case OPCODE_WORKERPROCESSID:
            workerProcessId = readUTF8String(encoded);
            break;
        case OPCODE_PARAMETERS:
            int size = encoded.readInt();
            for (int i = 0; i < size; i++) {
                Object key = readEncodedSimpleValue(encoded);
                Object value = readEncodedSimpleValue(encoded);
                params.put(((RawString) key).toString(), value);
            }
            break;
        default:
            throw new RuntimeException("invalid opcode: " + opcode);
        }
    }
    Message m = new Message(workerProcessId, type, params);
    if (replyMessageId != null) {
        m.replyMessageId = replyMessageId;
    }
    m.messageId = messageId;
    return m;

}

From source file:blusunrize.immersiveengineering.common.util.network.MessageBirthdayParty.java

@Override
public void fromBytes(ByteBuf buf) {
    this.entityId = buf.readInt();
}

From source file:blusunrize.immersiveengineering.common.util.network.MessageMagnetEquip.java

@Override
public void fromBytes(ByteBuf buf) {
    this.fetchSlot = buf.readInt();
}

From source file:blusunrize.immersiveengineering.common.util.network.MessageMinecartShaderSync.java

@Override
public void fromBytes(ByteBuf buf) {
    this.entityID = buf.readInt();
    this.request = buf.readBoolean();
    if (!request)
        this.shader = ByteBufUtils.readItemStack(buf);
}