@Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        // Store a ref to the count of current inflight requests onto this channel. So that
        // other code can query it using getInflightRequestCountFromChannel().
        ctx.channel().attr(ATTR_CURRENT_REQS).set(currentRequests);

        super.channelActive(ctx);
    }
User: michaels@netflix.com
Date: 4/14/16
Time: 3:51 PM
zuul-core/src/main/java/com/netflix/netty/common/metrics/HttpMetricsChannelHandler.java