EchoByteHandler Class — netty Architecture

Source Code

transport-udt/src/test/java/io/netty/test/udt/util/EchoByteHandler.java lines 32–76

public class EchoByteHandler extends ChannelInboundHandlerAdapter {

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

    private final ByteBuf message;

    private volatile int counter;

    public int counter() {
        return counter;
    }

    public EchoByteHandler(final int messageSize) {

        message = Unpooled.buffer(messageSize);

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

    @Override
    public void channelActive(final ChannelHandlerContext ctx) throws Exception {

        log.info("ECHO active {}", NioUdtProvider.socketUDT(ctx.channel()).toStringOptions());

        ctx.writeAndFlush(message);
    }

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

    @Override
    public void exceptionCaught(final ChannelHandlerContext ctx,
            final Throwable e) {

        log.error("exception : {}", e.getMessage());

        ctx.close();
    }
}