EchoMessageHandler Class — netty Architecture

Source Code

transport-udt/src/test/java/io/netty/test/udt/util/EchoMessageHandler.java lines 33–72

public class EchoMessageHandler extends ChannelInboundHandlerAdapter {

    private static final InternalLogger log = InternalLoggerFactory.getInstance(EchoMessageHandler.class);

    private final UdtMessage message;

    private volatile int counter;

    public EchoMessageHandler(final int messageSize) {
        final ByteBuf byteBuf = Unpooled.buffer(messageSize);

        for (int i = 0; i < byteBuf.capacity(); i++) {
            byteBuf.writeByte((byte) i);
        }

        message = new UdtMessage(byteBuf);
    }

    @Override
    public void channelActive(final ChannelHandlerContext ctx) throws Exception {
        log.info("ECHO active {}", NioUdtProvider.socketUDT(ctx.channel()).toStringOptions());
        ctx.writeAndFlush(message);
    }

    @Override
    public void exceptionCaught(final ChannelHandlerContext ctx, final Throwable e) {
        log.error("exception", e);
        ctx.close();
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        counter += ((UdtMessage) msg).content().readableBytes();
        ctx.writeAndFlush(msg);
    }

    public int counter() {
        return counter;
    }
}