Example usage for io.netty.buffer ByteBuf readBytes

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

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Introduction

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

Prototype

public abstract ByteBuf readBytes(ByteBuffer dst);

Source Link

Document

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

Usage

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);//from   w w  w .  j a  v  a2 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

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  w w  w .j a v  a2  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:book.netty.n2defualtC4P2.TimeClientHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf buf = (ByteBuf) msg;
    byte[] req = new byte[buf.readableBytes()];
    buf.readBytes(req);
    String body = new String(req, "UTF-8");
    System.out.println("Now is : " + body + " ; the counter is : " + ++counter);
}

From source file:book.netty.n2defualtC4P2.TimeServerHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf buf = (ByteBuf) msg;
    byte[] req = new byte[buf.readableBytes()];
    buf.readBytes(req);
    String body = new String(req, "UTF-8").substring(0,
            req.length - System.getProperty("line.separator").length());
    System.out.println("The time server receive order : " + body + " ; the counter is : " + ++counter);
    String currentTime = "QUERY TIME ORDER".equalsIgnoreCase(body)
            ? new java.util.Date(System.currentTimeMillis()).toString()
            : "BAD ORDER";
    currentTime = currentTime + System.getProperty("line.separator");
    ByteBuf resp = Unpooled.copiedBuffer(currentTime.getBytes());
    ctx.writeAndFlush(resp);//from  w w w . java2  s. c om
}

From source file:books.netty.protocol.netty.codec.NettyMessageDecoder.java

License:Apache License

@Override
protected Object decode(ChannelHandlerContext ctx, ByteBuf in) throws Exception {
    ByteBuf frame = (ByteBuf) super.decode(ctx, in);
    if (frame == null) {
        return null;
    }//from  w  ww . j  a va2s  .  com

    NettyMessage message = new NettyMessage();
    Header header = new Header();
    header.setCrcCode(frame.readInt());
    header.setLength(frame.readInt());
    header.setSessionID(frame.readLong());
    header.setType(frame.readByte());
    header.setPriority(frame.readByte());

    int size = frame.readInt();
    if (size > 0) {
        Map<String, Object> attch = new HashMap<String, Object>(size);
        int keySize = 0;
        byte[] keyArray = null;
        String key = null;
        for (int i = 0; i < size; i++) {
            keySize = frame.readInt();
            keyArray = new byte[keySize];
            frame.readBytes(keyArray);
            key = new String(keyArray, "UTF-8");
            attch.put(key, marshallingDecoder.decode(frame));
        }
        keyArray = null;
        key = null;
        header.setAttachment(attch);
    }
    if (frame.readableBytes() > 4) {
        message.setBody(marshallingDecoder.decode(frame));
    }
    message.setHeader(header);
    return message;
}

From source file:books.netty.protocol.netty.codec.TestCodeC.java

License:Apache License

public NettyMessage decode(ByteBuf in) throws Exception {
    NettyMessage message = new NettyMessage();
    Header header = new Header();
    header.setCrcCode(in.readInt());/*from   w ww .  ja va2 s  . c o  m*/
    header.setLength(in.readInt());
    header.setSessionID(in.readLong());
    header.setType(in.readByte());
    header.setPriority(in.readByte());

    int size = in.readInt();
    if (size > 0) {
        Map<String, Object> attch = new HashMap<String, Object>(size);
        int keySize = 0;
        byte[] keyArray = null;
        String key = null;
        for (int i = 0; i < size; i++) {
            keySize = in.readInt();
            keyArray = new byte[keySize];
            in.readBytes(keyArray);
            key = new String(keyArray, "UTF-8");
            attch.put(key, marshallingDecoder.decode(in));
        }
        keyArray = null;
        key = null;
        header.setAttachment(attch);
    }
    if (in.readableBytes() > 4) {
        message.setBody(marshallingDecoder.decode(in));
    }
    message.setHeader(header);
    return message;
}

From source file:buildcraft.core.lib.network.PacketNBT.java

License:Minecraft Mod Public

@Override
public void readData(ByteBuf data) {
    super.readData(data);

    int length = data.readUnsignedShort();
    byte[] compressed = new byte[length];
    data.readBytes(compressed);

    try {//ww  w .  j a  v a  2 s.  com
        this.nbttagcompound = CompressedStreamTools.func_152457_a(compressed, NBTSizeTracker.field_152451_a);
    } catch (IOException e) {
        e.printStackTrace();
    }
}

From source file:buildcraft.core.lib.network.PacketTileState.java

License:Minecraft Mod Public

@Override
public void writeData(ByteBuf data) {
    super.writeData(data);

    ByteBuf tmpState = Unpooled.buffer();

    tmpState.writeByte(stateList.size());
    for (StateWithId stateWithId : stateList) {
        tmpState.writeByte(stateWithId.stateId);
        stateWithId.state.writeData(tmpState);
    }/*from   w w  w .jav  a 2s.c  o m*/

    data.writeShort((short) tmpState.readableBytes());
    data.writeBytes(tmpState.readBytes(tmpState.readableBytes()));
}

From source file:buildcraft.core.lib.network.PacketTileState.java

License:Minecraft Mod Public

@Override
public void readData(ByteBuf data) {
    super.readData(data);

    state = Unpooled.buffer();/*from  ww w.j  av a 2  s.c  om*/
    int length = data.readUnsignedShort();
    state.writeBytes(data.readBytes(length));
}

From source file:buildcraft.core.network.PacketNBT.java

License:Minecraft Mod Public

@Override
public void readData(ByteBuf data) {
    super.readData(data);

    short length = data.readShort();
    byte[] compressed = new byte[length];
    data.readBytes(compressed);

    try {//  ww  w  .  j  a v a 2s  .  com
        this.nbttagcompound = CompressedStreamTools.func_152457_a(compressed, NBTSizeTracker.field_152451_a);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}