2 * ============LICENSE_START====================================
3 * DCAEGEN2-SERVICES-SDK
4 * =========================================================
5 * Copyright (C) 2019 Nokia. All rights reserved.
6 * =========================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=====================================
21 package org.onap.dcaegen2.services.sdk.standardization.moher.metrics.impl;
24 import io.micrometer.core.instrument.binder.jvm.ClassLoaderMetrics;
25 import io.micrometer.core.instrument.binder.jvm.JvmGcMetrics;
26 import io.micrometer.core.instrument.binder.jvm.JvmMemoryMetrics;
27 import io.micrometer.core.instrument.binder.jvm.JvmThreadMetrics;
28 import io.micrometer.core.instrument.binder.system.ProcessorMetrics;
29 import io.micrometer.prometheus.PrometheusMeterRegistry;
30 import org.onap.dcaegen2.services.sdk.standardization.moher.metrics.api.Metrics;
31 import reactor.core.publisher.Flux;
32 import reactor.core.publisher.Mono;
34 import java.time.Duration;
36 public class MetricsImpl implements Metrics {
37 private final PrometheusMeterRegistry registry;
39 public MetricsImpl(PrometheusMeterRegistry registry) {
40 this.registry = registry;
44 public Mono<String> collect() {
45 return Mono.just(registry.scrape());
49 public Flux<String> collect(Duration interval) {
50 return Flux.interval(interval)
51 .map((l) -> registry.scrape());
54 public void configureDefaultMetrics(){
55 new ClassLoaderMetrics().bindTo(registry);
56 new JvmThreadMetrics().bindTo(registry);
57 new JvmMemoryMetrics().bindTo(registry);
58 new JvmGcMetrics().bindTo(registry);
59 new ProcessorMetrics().bindTo(registry);