Http2OrHttpHandler Class — netty Architecture

Source Code

example/src/main/java/io/netty/example/http2/helloworld/frame/server/Http2OrHttpHandler.java lines 29–53

public class Http2OrHttpHandler extends ApplicationProtocolNegotiationHandler {

    private static final int MAX_CONTENT_LENGTH = 1024 * 100;

    protected Http2OrHttpHandler() {
        super(ApplicationProtocolNames.HTTP_1_1);
    }

    @Override
    protected void configurePipeline(ChannelHandlerContext ctx, String protocol) throws Exception {
        if (ApplicationProtocolNames.HTTP_2.equals(protocol)) {
            ctx.pipeline().addLast(Http2FrameCodecBuilder.forServer().build(), new HelloWorldHttp2Handler());
            return;
        }

        if (ApplicationProtocolNames.HTTP_1_1.equals(protocol)) {
            ctx.pipeline().addLast(new HttpServerCodec(),
                                   new HttpObjectAggregator(MAX_CONTENT_LENGTH),
                                   new HelloWorldHttp1Handler("ALPN Negotiation"));
            return;
        }

        throw new IllegalStateException("unknown protocol: " + protocol);
    }
}