sch-UID2-4560-adding-gauge-for-number-of-request-processing-threads a…

…dded gauge for event loop threads

src/main/java/com/uid2/operator/Main.java

@@ -265,7 +265,8 @@ private ICloudStorage wrapCloudStorageForOptOut(ICloudStorage cloudStorage) {
     }
 
     private void run() throws Exception {
-        this.createServiceInstancesMetric();
+        this.createVertxInstancesMetric();
+        this.createVertxEventLoopsMetric();
         Supplier<Verticle> operatorVerticleSupplier = () -> {
             UIDOperatorVerticle verticle = new UIDOperatorVerticle(config, this.clientSideTokenGenerate, siteProvider, clientKeyProvider, clientSideKeypairProvider, getKeyManager(), saltProvider, optOutStore, Clock.systemUTC(), _statsCollectorQueue, new SecureLinkValidatorService(this.serviceLinkProvider, this.serviceProvider), this.shutdownHandler::handleSaltRetrievalResponse);
             return verticle;
@@ -468,9 +469,15 @@ public DistributionStatisticConfig configure(Meter.Id id, DistributionStatisticC
                 .register(globalRegistry);
     }
 
-    private void createServiceInstancesMetric() {
+    private void createVertxInstancesMetric() {
         Gauge.builder("uid2.operator.vertx_service_instances", () -> config.getInteger("service_instances"))
-            .description("gauge for number of request processing threads")
+                .description("gauge for number of vertx service instances requested")
+                .register(Metrics.globalRegistry);
+    }
+
+    private void createVertxEventLoopsMetric() {
+        Gauge.builder("uid2.operator.vertx_event_loop_threads", () -> VertxOptions.DEFAULT_EVENT_LOOP_POOL_SIZE)
+                .description("gauge for number of vertx event loop threads")
                 .register(Metrics.globalRegistry);
     }