implemented 09-system-metrics.md: added system metrics: introduced system monitoring with a metrics collector, REST API endpoint, Thymeleaf UI rendering, and lifecycle management

2026-07-07 12:55:11 +02:00
parent 67c9f0ade9
commit a6a2c9de0b
21 changed files with 1069 additions and 6 deletions
@@ -0,0 +1,18 @@
+package de.hoennig.gittally.server
+
+import de.hoennig.gittally.metrics.SystemMetrics
+import de.hoennig.gittally.metrics.SystemMetricsCollector
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+class SystemApiController(
+    private val collector: SystemMetricsCollector,
+) {
+    /**
+     * The current system snapshot plus min/max/avg aggregates (the legacy
+     * `system.json`). Unavailable metrics are null, never an error.
+     */
+    @GetMapping("/api/system")
+    fun system(): SystemMetrics = collector.snapshot()
+}