ChannelHandlerContext() — netty Function Reference

Source Code

codec-http2/src/main/java/io/netty/handler/codec/http2/Http2StreamChannelBootstrap.java lines 135–158

    @SuppressWarnings("deprecation")
    private ChannelHandlerContext findCtx() throws ClosedChannelException {
        // First try to use cached context and if this not work lets try to lookup the context.
        ChannelHandlerContext ctx = multiplexCtx;
        if (ctx != null && !ctx.isRemoved()) {
            return ctx;
        }
        ChannelPipeline pipeline = channel.pipeline();
        ctx = pipeline.context(Http2MultiplexCodec.class);
        if (ctx == null) {
            ctx = pipeline.context(Http2MultiplexHandler.class);
        }
        if (ctx == null) {
            if (channel.isActive()) {
                throw new IllegalStateException(StringUtil.simpleClassName(Http2MultiplexCodec.class) + " or "
                        + StringUtil.simpleClassName(Http2MultiplexHandler.class)
                        + " must be in the ChannelPipeline of Channel " + channel);
            } else {
                throw new ClosedChannelException();
            }
        }
        multiplexCtx = ctx;
        return ctx;
    }