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Spring Boot Actuator AutoConfigure
/*
* Copyright 2012-2023 the original author or authors.
*
* 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
*
* https://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.springframework.boot.actuate.autoconfigure.metrics.task;
import java.util.Collections;
import java.util.Map;
import java.util.concurrent.Executor;
import java.util.concurrent.ThreadPoolExecutor;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.binder.jvm.ExecutorServiceMetrics;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.LazyInitializationExcludeFilter;
import org.springframework.boot.actuate.autoconfigure.metrics.MetricsAutoConfiguration;
import org.springframework.boot.actuate.autoconfigure.metrics.export.simple.SimpleMetricsExportAutoConfiguration;
import org.springframework.boot.autoconfigure.AutoConfiguration;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.task.TaskExecutionAutoConfiguration;
import org.springframework.boot.autoconfigure.task.TaskSchedulingAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
/**
* {@link EnableAutoConfiguration Auto-configuration} for metrics on all available
* {@link ThreadPoolTaskExecutor task executors} and {@link ThreadPoolTaskScheduler task
* schedulers}.
*
* @author Stephane Nicoll
* @author Scott Frederick
* @since 2.6.0
*/
@AutoConfiguration(after = { MetricsAutoConfiguration.class, SimpleMetricsExportAutoConfiguration.class,
TaskExecutionAutoConfiguration.class, TaskSchedulingAutoConfiguration.class })
@ConditionalOnClass(ExecutorServiceMetrics.class)
@ConditionalOnBean({ Executor.class, MeterRegistry.class })
public class TaskExecutorMetricsAutoConfiguration {
@Autowired
public void bindTaskExecutorsToRegistry(Map executors, MeterRegistry registry) {
executors.forEach((beanName, executor) -> {
if (executor instanceof ThreadPoolTaskExecutor threadPoolTaskExecutor) {
monitor(registry, safeGetThreadPoolExecutor(threadPoolTaskExecutor), beanName);
}
else if (executor instanceof ThreadPoolTaskScheduler threadPoolTaskScheduler) {
monitor(registry, safeGetThreadPoolExecutor(threadPoolTaskScheduler), beanName);
}
});
}
@Bean
static LazyInitializationExcludeFilter eagerTaskExecutorMetrics() {
return LazyInitializationExcludeFilter.forBeanTypes(TaskExecutorMetricsAutoConfiguration.class);
}
private void monitor(MeterRegistry registry, ThreadPoolExecutor threadPoolExecutor, String name) {
if (threadPoolExecutor != null) {
new ExecutorServiceMetrics(threadPoolExecutor, name, Collections.emptyList()).bindTo(registry);
}
}
private ThreadPoolExecutor safeGetThreadPoolExecutor(ThreadPoolTaskExecutor taskExecutor) {
try {
return taskExecutor.getThreadPoolExecutor();
}
catch (IllegalStateException ex) {
return null;
}
}
private ThreadPoolExecutor safeGetThreadPoolExecutor(ThreadPoolTaskScheduler taskScheduler) {
try {
return taskScheduler.getScheduledThreadPoolExecutor();
}
catch (IllegalStateException ex) {
return null;
}
}
}