Example usage for io.netty.buffer ByteBuf readableBytes

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

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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: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);/*from  www. jav a2  s. c o m*/
    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);/*w  ww.j a v a2  s. c o m*/
    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 source file:books.netty.protocol.http.xml.codec.HttpXmlResponseEncoder.java

License:Apache License

protected void encode(ChannelHandlerContext ctx, HttpXmlResponse msg, List<Object> out) throws Exception {
    ByteBuf body = encode0(ctx, msg.getResult());
    FullHttpResponse response = msg.getHttpResponse();
    if (response == null) {
        response = new DefaultFullHttpResponse(HTTP_1_1, OK, body);
    } else {//www .  j a v a2s  .c  o m
        response = new DefaultFullHttpResponse(msg.getHttpResponse().getProtocolVersion(),
                msg.getHttpResponse().getStatus(), body);
    }
    response.headers().set(CONTENT_TYPE, "text/xml");
    setContentLength(response, body.readableBytes());
    out.add(response);
}

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  w w  .j  a  v  a  2 s .  c  o m*/

    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.NettyMessageEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, NettyMessage msg, ByteBuf sendBuf) throws Exception {
    if (msg == null || msg.getHeader() == null)
        throw new Exception("The encode message is null");
    sendBuf.writeInt((msg.getHeader().getCrcCode()));
    sendBuf.writeInt((msg.getHeader().getLength()));
    sendBuf.writeLong((msg.getHeader().getSessionID()));
    sendBuf.writeByte((msg.getHeader().getType()));
    sendBuf.writeByte((msg.getHeader().getPriority()));
    sendBuf.writeInt((msg.getHeader().getAttachment().size()));
    String key = null;/*  w  ww  .jav a 2  s  . c  o m*/
    byte[] keyArray = null;
    Object value = null;
    for (Map.Entry<String, Object> param : msg.getHeader().getAttachment().entrySet()) {
        key = param.getKey();
        keyArray = key.getBytes("UTF-8");
        sendBuf.writeInt(keyArray.length);
        sendBuf.writeBytes(keyArray);
        value = param.getValue();
        marshallingEncoder.encode(value, sendBuf);
    }
    key = null;
    keyArray = null;
    value = null;
    if (msg.getBody() != null) {
        marshallingEncoder.encode(msg.getBody(), sendBuf);
    } else
        sendBuf.writeInt(0);
    sendBuf.setInt(4, sendBuf.readableBytes() - 8);
}

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

License:Apache License

public ByteBuf encode(NettyMessage msg) throws Exception {
    ByteBuf sendBuf = Unpooled.buffer();
    sendBuf.writeInt((msg.getHeader().getCrcCode()));
    sendBuf.writeInt((msg.getHeader().getLength()));
    sendBuf.writeLong((msg.getHeader().getSessionID()));
    sendBuf.writeByte((msg.getHeader().getType()));
    sendBuf.writeByte((msg.getHeader().getPriority()));
    sendBuf.writeInt((msg.getHeader().getAttachment().size()));
    String key = null;//from  w ww  .  ja v a2 s .  c om
    byte[] keyArray = null;
    Object value = null;

    for (Map.Entry<String, Object> param : msg.getHeader().getAttachment().entrySet()) {
        key = param.getKey();
        keyArray = key.getBytes("UTF-8");
        sendBuf.writeInt(keyArray.length);
        sendBuf.writeBytes(keyArray);
        value = param.getValue();
        marshallingEncoder.encode(value, sendBuf);
    }
    key = null;
    keyArray = null;
    value = null;
    if (msg.getBody() != null) {
        marshallingEncoder.encode(msg.getBody(), sendBuf);
    } else
        sendBuf.writeInt(0);
    sendBuf.setInt(4, sendBuf.readableBytes());
    return sendBuf;
}

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  .  j a  v  a 2s. c om
    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.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  .  j a v a2 s .c  o  m*/

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

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

License:Minecraft Mod Public

@Override
public void readData(ByteBuf data) {
    dimId = data.readShort();//from w w  w . j av  a2s.c  o m

    x = data.readInt();
    y = data.readInt();
    z = data.readInt();
    id = data.readInt();
    moreDataToCome = data.readBoolean();
    contents = new byte[data.readableBytes()];
    data.readBytes(contents);
}

From source file:buildcraft.core.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   ww w .ja va 2 s .c o m

    data.writeInt(tmpState.readableBytes());
    data.writeBytes(tmpState.readBytes(tmpState.readableBytes()));
}