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/*
* -
* ============LICENSE_START=======================================================
* Copyright (C) 2022 Nordix Foundation.
* ================================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.openecomp.sdcrests.metrics.impl;
import io.micrometer.core.instrument.binder.jetty.JettyConnectionMetrics;
import io.micrometer.core.instrument.binder.jvm.ClassLoaderMetrics;
import io.micrometer.core.instrument.binder.jvm.JvmCompilationMetrics;
import io.micrometer.core.instrument.binder.jvm.JvmGcMetrics;
import io.micrometer.core.instrument.binder.jvm.JvmMemoryMetrics;
import io.micrometer.core.instrument.binder.jvm.JvmThreadMetrics;
import io.micrometer.core.instrument.binder.system.FileDescriptorMetrics;
import io.micrometer.core.instrument.binder.system.ProcessorMetrics;
import io.micrometer.core.instrument.binder.system.UptimeMetrics;
import io.micrometer.prometheus.PrometheusMeterRegistry;
import io.prometheus.client.exporter.common.TextFormat;
import org.openecomp.sdcrests.metrics.api.PrometheusMetricsController;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.RestController;
@RestController("prometheusMetricsController")
public class PrometheusMetricControllerImpl implements PrometheusMetricsController {
private static final Logger LOGGER = LoggerFactory.getLogger(PrometheusMetricControllerImpl.class);
private final PrometheusMeterRegistry prometheusMeterRegistry;
public PrometheusMetricControllerImpl(final PrometheusMeterRegistry prometheusMeterRegistry) {
this.prometheusMeterRegistry = prometheusMeterRegistry;
new ClassLoaderMetrics().bindTo(prometheusMeterRegistry);
try (final JvmGcMetrics jvmGcMetrics = new JvmGcMetrics()) {
jvmGcMetrics.bindTo(prometheusMeterRegistry);
} catch (final Exception e) {
LOGGER.error("Could not instantiate the JVM GC Metrics", e);
}
new JvmMemoryMetrics().bindTo(prometheusMeterRegistry);
new JvmCompilationMetrics().bindTo(prometheusMeterRegistry);
new JvmThreadMetrics().bindTo(prometheusMeterRegistry);
new ProcessorMetrics().bindTo(prometheusMeterRegistry);
new UptimeMetrics().bindTo(prometheusMeterRegistry);
new FileDescriptorMetrics().bindTo(prometheusMeterRegistry);
new JettyConnectionMetrics(prometheusMeterRegistry);
}
@Override
public String prometheusMetrics(final String acceptHeader) {
return prometheusMeterRegistry.scrape(TextFormat.chooseContentType(acceptHeader));
}
}
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