| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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. |
| */ |
| |
| package org.apache.dubbo.metrics; |
| |
| import io.micrometer.core.instrument.Gauge; |
| import io.micrometer.core.instrument.MeterRegistry; |
| import io.micrometer.core.instrument.Tag; |
| import io.micrometer.core.instrument.binder.jvm.ClassLoaderMetrics; |
| 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.ProcessorMetrics; |
| import io.micrometer.core.instrument.composite.CompositeMeterRegistry; |
| import org.apache.dubbo.common.URL; |
| import org.apache.dubbo.common.lang.ShutdownHookCallbacks; |
| import org.apache.dubbo.common.logger.Logger; |
| import org.apache.dubbo.common.logger.LoggerFactory; |
| import org.apache.dubbo.common.metrics.MetricsReporter; |
| import org.apache.dubbo.common.metrics.collector.DefaultMetricsCollector; |
| import org.apache.dubbo.common.metrics.collector.MetricsCollector; |
| import org.apache.dubbo.common.metrics.model.sample.GaugeMetricSample; |
| import org.apache.dubbo.common.metrics.model.sample.MetricSample; |
| import org.apache.dubbo.common.utils.NamedThreadFactory; |
| import org.apache.dubbo.metrics.collector.AggregateMetricsCollector; |
| import org.apache.dubbo.rpc.model.ApplicationModel; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.ScheduledExecutorService; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| import static org.apache.dubbo.common.constants.MetricsConstants.ENABLE_JVM_METRICS_KEY; |
| |
| /** |
| * AbstractMetricsReporter. |
| */ |
| public abstract class AbstractMetricsReporter implements MetricsReporter { |
| |
| private final Logger logger = LoggerFactory.getLogger(AbstractMetricsReporter.class); |
| |
| private final AtomicBoolean initialized = new AtomicBoolean(false); |
| |
| protected final URL url; |
| protected final List<MetricsCollector> collectors = new ArrayList<>(); |
| protected final CompositeMeterRegistry compositeRegistry = new CompositeMeterRegistry(); |
| |
| private final ApplicationModel applicationModel; |
| private ScheduledExecutorService collectorSyncJobExecutor = null; |
| |
| private static final int DEFAULT_SCHEDULE_INITIAL_DELAY = 5; |
| private static final int DEFAULT_SCHEDULE_PERIOD = 30; |
| |
| protected AbstractMetricsReporter(URL url, ApplicationModel applicationModel) { |
| this.url = url; |
| this.applicationModel = applicationModel; |
| } |
| |
| @Override |
| public void init() { |
| if (initialized.compareAndSet(false, true)) { |
| addJvmMetrics(); |
| initCollectors(); |
| scheduleMetricsCollectorSyncJob(); |
| |
| doInit(); |
| |
| registerDubboShutdownHook(); |
| } |
| } |
| |
| protected void addMeterRegistry(MeterRegistry registry) { |
| compositeRegistry.add(registry); |
| } |
| |
| protected ApplicationModel getApplicationModel() { |
| return applicationModel; |
| } |
| |
| private void addJvmMetrics() { |
| boolean enableJvmMetrics = url.getParameter(ENABLE_JVM_METRICS_KEY, false); |
| if (enableJvmMetrics) { |
| new ClassLoaderMetrics().bindTo(compositeRegistry); |
| new JvmMemoryMetrics().bindTo(compositeRegistry); |
| new JvmGcMetrics().bindTo(compositeRegistry); |
| new ProcessorMetrics().bindTo(compositeRegistry); |
| new JvmThreadMetrics().bindTo(compositeRegistry); |
| } |
| } |
| |
| private void initCollectors() { |
| applicationModel.getBeanFactory().getOrRegisterBean(AggregateMetricsCollector.class); |
| |
| collectors.add(applicationModel.getBeanFactory().getBean(DefaultMetricsCollector.class)); |
| collectors.add(applicationModel.getBeanFactory().getBean(AggregateMetricsCollector.class)); |
| } |
| |
| private void scheduleMetricsCollectorSyncJob() { |
| NamedThreadFactory threadFactory = new NamedThreadFactory("metrics-collector-sync-job", true); |
| collectorSyncJobExecutor = Executors.newScheduledThreadPool(1, threadFactory); |
| collectorSyncJobExecutor.scheduleWithFixedDelay(() -> { |
| collectors.forEach(collector -> { |
| List<MetricSample> samples = collector.collect(); |
| for (MetricSample sample : samples) { |
| try { |
| switch (sample.getType()) { |
| case GAUGE: |
| GaugeMetricSample gaugeSample = (GaugeMetricSample) sample; |
| List<Tag> tags = new ArrayList<>(); |
| gaugeSample.getTags().forEach((k, v) -> { |
| if (v == null) { |
| v = ""; |
| } |
| |
| tags.add(Tag.of(k, v)); |
| }); |
| |
| Gauge.builder(gaugeSample.getName(), gaugeSample.getSupplier()) |
| .description(gaugeSample.getDescription()).tags(tags).register(compositeRegistry); |
| break; |
| case COUNTER: |
| case TIMER: |
| case LONG_TASK_TIMER: |
| case DISTRIBUTION_SUMMARY: |
| // TODO |
| break; |
| default: |
| break; |
| } |
| } catch (Exception e) { |
| logger.error("error occurred when synchronize metrics collector.", e); |
| } |
| } |
| }); |
| }, DEFAULT_SCHEDULE_INITIAL_DELAY, DEFAULT_SCHEDULE_PERIOD, TimeUnit.SECONDS); |
| } |
| |
| private void registerDubboShutdownHook() { |
| applicationModel.getBeanFactory().getBean(ShutdownHookCallbacks.class).addCallback(this::destroy); |
| } |
| |
| public void destroy() { |
| if (collectorSyncJobExecutor != null) { |
| collectorSyncJobExecutor.shutdownNow(); |
| } |
| |
| doDestroy(); |
| } |
| |
| protected abstract void doInit(); |
| |
| protected abstract void doDestroy(); |
| } |