Example usage for io.netty.buffer ByteBuf writeBytes

Introduction

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

Prototype

public abstract ByteBuf writeBytes(ByteBuffer src);

Source Link

Document

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

Usage

From source file:com.example.spring.boot.netty.TcpClientHandler.java

License:Apache License

@Override
public void channelActive(ChannelHandlerContext ctx) {
    new Thread(new Runnable() {
        @Override/*from   ww w.  j  a  v  a  2s.c o  m*/
        public void run() {
            while (true) {
                ByteBuf buf = Unpooled.buffer(256);
                buf.writeBytes(MSG.getBytes());
                ctx.writeAndFlush(buf);
                try {
                    Thread.sleep(tcpClient.getInterval());
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
        }
    }).start();
}

From source file:com.farsunset.cim.sdk.android.filter.ClientMessageEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Protobufable message, ByteBuf out) throws Exception {

    Protobufable data = (Protobufable) message;
    byte[] byteArray = data.getByteArray();

    out.writeBytes(createHeader(data.getType(), byteArray.length));
    out.writeBytes(byteArray);// ww  w  .j  av a2 s . c  o m

}

From source file:com.farsunset.cim.sdk.client.filter.ClientMessageEncoder.java

License:Apache License

@Override
protected void encode(ChannelHandlerContext ctx, Object message, ByteBuf out) throws Exception {

    if (message instanceof Protobufable) {

        Protobufable data = (Protobufable) message;
        byte[] byteArray = data.getByteArray();

        out.writeBytes(createHeader(data.getType(), byteArray.length));
        out.writeBytes(byteArray);/*from w  w w . j ava2s .c o m*/

    }

    logger.info(message.toString());
}

From source file:com.farsunset.cim.sdk.server.filter.ServerMessageEncoder.java

License:Apache License

@Override
protected void encode(final ChannelHandlerContext ctx, final Object object, ByteBuf out) throws Exception {
    Object protocol = ctx.channel().attr(AttributeKey.valueOf(CIMSession.PROTOCOL)).get();

    /**/*from w w w .j  a v  a 2  s.  c  o  m*/
     * websocket??
     */
    if (Objects.equals(CIMSession.WEBSOCKET, protocol) && object instanceof HandshakerResponse) {
        out.writeBytes(object.toString().getBytes());
        return;

    }

    /**
     * websocket? 
     */
    if (Objects.equals(CIMSession.WEBSOCKET, protocol) && object instanceof EncodeFormatable) {
        EncodeFormatable data = (EncodeFormatable) object;
        byte[] body = data.getProtobufBody();
        byte[] header = createHeader(data.getDataType(), body.length);

        byte[] protobuf = new byte[body.length + CIMConstant.DATA_HEADER_LENGTH];
        System.arraycopy(header, 0, protobuf, 0, header.length);
        System.arraycopy(body, 0, protobuf, header.length, body.length);

        byte[] binaryFrame = encodeDataFrame(protobuf);
        out.writeBytes(binaryFrame);

        return;
    }

    /**
     * ?websocket?Protobuf???
     */
    if (Objects.equals(CIMSession.NATIVEAPP, protocol) && object instanceof EncodeFormatable) {

        EncodeFormatable data = (EncodeFormatable) object;
        byte[] body = data.getProtobufBody();
        byte[] header = createHeader(data.getDataType(), body.length);

        out.writeBytes(header);
        out.writeBytes(body);

    }

}

From source file:com.feihong.newzxclient.tcp.NettyClientHandler.java

License:Apache License

protected void sendMsg(Msg.CommonMessage msg) {
    if (mContext != null) {
        byte[] result = msg.toByteArray();

        ByteBuf buf = Unpooled.buffer(4 + result.length);
        buf.writeInt(result.length);/*w w  w .ja  v  a2  s  . co  m*/
        buf.writeBytes(result);

        //System.out.println("send Msg success!");
        mContext.writeAndFlush(buf);
    }
}

From source file:com.flowpowered.network.util.ByteBufUtils.java

License:MIT License

/**
 * Writes an UTF8 string to a byte buffer.
 *
 * @param buf The byte buffer to write too
 * @param value The string to write//  w w  w  . ja  va2 s.c  o m
 * @throws java.io.IOException If the writing fails
 */
public static void writeUTF8(ByteBuf buf, String value) throws IOException {
    final byte[] bytes = value.getBytes(StandardCharsets.UTF_8);
    if (bytes.length >= Short.MAX_VALUE) {
        throw new IOException(
                "Attempt to write a string with a length greater than Short.MAX_VALUE to ByteBuf!");
    }
    // Write the string's length
    writeVarInt(buf, bytes.length);
    buf.writeBytes(bytes);
}

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

License:Apache License

/**
 * If receive a frame with end-of-stream set, send a pre-canned response.
 *///ww  w  .  ja  v  a2s . c om
public void onHeadersRead(ChannelHandlerContext ctx, Http2HeadersFrame headers) throws Exception {
    if (headers.isEndStream()) {
        ByteBuf content = ctx.alloc().buffer();
        content.writeBytes(RESPONSE_BYTES.duplicate());
        ByteBufUtil.writeAscii(content, " - via HTTP/2");
        sendResponse(ctx, content);
    }
}

From source file:com.flysoloing.learning.network.netty.http2.helloworld.server.HelloWorldHttp1Handler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, FullHttpRequest req) throws Exception {
    if (HttpUtil.is100ContinueExpected(req)) {
        ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE));
    }/*from  w  ww.  j  av a 2  s . c o m*/
    boolean keepAlive = HttpUtil.isKeepAlive(req);

    ByteBuf content = ctx.alloc().buffer();
    content.writeBytes(HelloWorldHttp2Handler.RESPONSE_BYTES.duplicate());
    ByteBufUtil.writeAscii(content, " - via " + req.protocolVersion() + " (" + establishApproach + ")");

    FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK, content);
    response.headers().set(CONTENT_TYPE, "text/plain; charset=UTF-8");
    response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());

    if (!keepAlive) {
        ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
    } else {
        response.headers().set(CONNECTION, HttpHeaderValues.KEEP_ALIVE);
        ctx.writeAndFlush(response);
    }
}

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

License:Apache License

public void onHeadersRead(ChannelHandlerContext ctx, int streamId, Http2Headers headers, int padding,
        boolean endOfStream) {
    if (endOfStream) {
        ByteBuf content = ctx.alloc().buffer();
        content.writeBytes(RESPONSE_BYTES.duplicate());
        ByteBufUtil.writeAscii(content, " - via HTTP/2");
        sendResponse(ctx, streamId, content);
    }//from   w  ww .j av  a 2s .c om
}

From source file:com.flysoloing.learning.network.netty.http2.tiles.FallbackRequestHandler.java

License:Apache License

@Override
protected void channelRead0(ChannelHandlerContext ctx, HttpRequest req) throws Exception {
    if (HttpUtil.is100ContinueExpected(req)) {
        ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE));
    }//w  w w .  j a  v  a  2  s . c o  m

    ByteBuf content = ctx.alloc().buffer();
    content.writeBytes(response.duplicate());

    FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK, content);
    response.headers().set(CONTENT_TYPE, "text/html; charset=UTF-8");
    response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());

    ctx.write(response).addListener(ChannelFutureListener.CLOSE);
}