org.springframework.boot.actuate.autoconfigure.tracing.LogCorrelationEnvironmentPostProcessor Maven / Gradle / Ivy
/*
* 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.tracing;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.env.EnvironmentPostProcessor;
import org.springframework.boot.logging.LoggingSystem;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.EnumerablePropertySource;
import org.springframework.core.env.Environment;
import org.springframework.core.env.PropertySource;
import org.springframework.util.ClassUtils;
/**
* {@link EnvironmentPostProcessor} to add a {@link PropertySource} to support log
* correlation IDs when Micrometer Tracing is present. Adds support for the
* {@value LoggingSystem#EXPECT_CORRELATION_ID_PROPERTY} property by delegating to
* {@code management.tracing.enabled}.
*
* @author Jonatan Ivanov
* @author Phillip Webb
*/
class LogCorrelationEnvironmentPostProcessor implements EnvironmentPostProcessor {
@Override
public void postProcessEnvironment(ConfigurableEnvironment environment, SpringApplication application) {
if (ClassUtils.isPresent("io.micrometer.tracing.Tracer", application.getClassLoader())) {
environment.getPropertySources().addLast(new LogCorrelationPropertySource(this, environment));
}
}
/**
* Log correlation {@link PropertySource}.
*/
private static class LogCorrelationPropertySource extends EnumerablePropertySource