upgradeTo() — netty Function Reference

Architecture documentation for the upgradeTo() function in Http2ClientUpgradeCodec.java from the netty codebase.

Function java Buffer Allocators

Entity Profile

Buffer→ Allocators→ upgradeTo() — netty Function Reference

Dependency Diagram

graph TD
  f1645f57_ba10_d57d_8001_5ea9b7805279["upgradeTo()"]
  05b8b9b6_95f6_6e56_1d66_6116444fa08c["Http2ClientUpgradeCodec"]
  f1645f57_ba10_d57d_8001_5ea9b7805279 -->|defined in| 05b8b9b6_95f6_6e56_1d66_6116444fa08c
  style f1645f57_ba10_d57d_8001_5ea9b7805279 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http2/src/main/java/io/netty/handler/codec/http2/Http2ClientUpgradeCodec.java lines 124–144

    @Override
    public void upgradeTo(ChannelHandlerContext ctx, FullHttpResponse upgradeResponse)
        throws Exception {
        try {
            // Add the handler to the pipeline.
            ctx.pipeline().addAfter(ctx.name(), handlerName, upgradeToHandler);

            // Add the Http2 Multiplex handler as this handler handle events produced by the connectionHandler.
            // See https://github.com/netty/netty/issues/9495
            if (http2MultiplexHandler != null) {
                final String name = ctx.pipeline().context(connectionHandler).name();
                ctx.pipeline().addAfter(name, null, http2MultiplexHandler);
            }

            // Reserve local stream 1 for the response.
            connectionHandler.onHttpClientUpgrade();
        } catch (Http2Exception e) {
            ctx.fireExceptionCaught(e);
            ctx.close();
        }
    }