Add chat-ui-htmx module: streaming chat page on Spring AI 2.0.2 with htmx and its SSE extension (vendored), MessageChatMemoryAdvisor keyed by the HTTP session, a Stop button, and the traps measured: EventSource strips one leading space per data line, model text must be HTML-escaped, a cancelled stream left the upstream connection open in 7 of 8 runs until an OkHttp interceptor calls Call.cancel (8 of 8 closed after), and the SDK push source ignores back-pressure (limitRate changes only the demand; a bounded buffer works). The model is a stub OpenAI-compatible SSE server written for the module; no real provider was run.

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b6Kg9RWSTJzyz6KP9X
2026-10-31 04:02:56 +00:00
parent c97bcf9adf
commit 68da642f9a
35 changed files with 1571 additions and 0 deletions
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+# Shared helpers: JDK 25, ports, start/stop of the stub and the app. Stop is by recorded PID only.
+set -euo pipefail
+cd "$(dirname "${BASH_SOURCE[0]}")/.."
+export JAVA_HOME="${CHATUI_JAVA_HOME:-/tmp/tools/jdk-25.0.5+8}"
+export PATH="$JAVA_HOME/bin:$PATH"
+APP_PORT=${APP_PORT:-38180}
+STUB_PORT=${STUB_PORT:-38181}
+RUN=target/run; mkdir -p "$RUN" output
+
+build() { [ -f target/cp.txt ] || mvn -B -q dependency:build-classpath -Dmdep.outputFile=target/cp.txt >/dev/null
+          mvn -B -q -DskipTests package >/dev/null; }
+
+start_stub() {   # $1 = delay ms
+  setsid nohup sh -c 'echo $$ > "$1"; shift; exec java "$@"' sh "$RUN/stub.pid" -cp "target/classes:$(cat target/cp.txt)" \
+    com.ankurm.chatui.stub.OpenAiStubServer "$STUB_PORT" "${1:-20}" > "$RUN/stub.log" 2>&1 < /dev/null &
+  for i in $(seq 1 30); do curl -s -o /dev/null "localhost:$STUB_PORT/stub/stats" && return; sleep 0.5; done; }
+
+start_app() {    # extra args are passed to the app (e.g. --chat.backpressure=limitRate)
+  setsid nohup sh -c 'echo $$ > "$1"; shift; exec java "$@"' sh "$RUN/app.pid" -jar target/chat-ui-htmx-1.0.0.jar \
+    --server.port="$APP_PORT" "$@" > "$RUN/app.log" 2>&1 < /dev/null &
+  for i in $(seq 1 60); do curl -s -o /dev/null "localhost:$APP_PORT/" && return; sleep 1; done; }
+
+stop_pid() { [ -f "$RUN/$1.pid" ] && kill "$(cat "$RUN/$1.pid")" 2>/dev/null || true; rm -f "$RUN/$1.pid"; sleep 1; }
+stop_all() { stop_pid app; stop_pid stub; }