Package org.mockserver.netty.http3

Class Http3ResponseWriter

java.lang.Object

org.mockserver.responsewriter.ResponseWriter

org.mockserver.netty.http3.Http3ResponseWriter

All Implemented Interfaces:

StreamErrorWriter

public class Http3ResponseWriter
extends ResponseWriter
implements StreamErrorWriter

A ResponseWriter that serialises the MockServer HttpResponse as HTTP/3 frames and writes them to a QUIC stream channel.

This allows the standard request-processing pipeline (HttpState, HttpActionHandler) to write responses identically regardless of whether the request arrived via HTTP/1.1, HTTP/2, or HTTP/3.

Streaming support: when the response carries a StreamingBody (SSE, chunked proxy forwarding, LLM streaming), the headers are sent immediately and each chunk is forwarded as an HTTP/3 DATA frame. The QUIC stream output is shut down when the stream completes. Backpressure is implemented via StreamingBody.requestMore(): each chunk write completion triggers the next upstream read.

Field Summary

Fields inherited from class org.mockserver.responsewriter.ResponseWriter

configuration, mockServerLogger

Constructor Summary

Constructors

Constructor	Description
Http3ResponseWriter(Configuration configuration, MockServerLogger mockServerLogger, io.netty.channel.ChannelHandlerContext ctx)

Method Summary

Modifier and Type	Method	Description
void	sendResponse(HttpRequest request, HttpResponse response)
void	writeStreamError(long errorCode)	Reset the QUIC stream with the supplied HTTP/3 error code (RESET_STREAM, RFC 9114 section 4.1).

Methods inherited from class org.mockserver.responsewriter.ResponseWriter

addConnectionHeader, writeResponse, writeResponse, writeResponse

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Http3ResponseWriter

public Http3ResponseWriter(Configuration configuration,
 MockServerLogger mockServerLogger,
 io.netty.channel.ChannelHandlerContext ctx)

Method Details

writeStreamError

public void writeStreamError(long errorCode)

Reset the QUIC stream with the supplied HTTP/3 error code (RESET_STREAM, RFC 9114 section 4.1). Only this request stream is reset; other streams on the QUIC connection are unaffected. No ByteBuf is allocated, so there is nothing to release.

Specified by:

writeStreamError in interface StreamErrorWriter

Parameters:

errorCode - the application/stream error code to send on the reset

sendResponse

public void sendResponse(HttpRequest request,
 HttpResponse response)

Specified by:

sendResponse in class ResponseWriter