zipkin2.server.internal.RegisterZipkinHealthIndicators Maven / Gradle / Ivy
/*
* Copyright 2015-2018 The OpenZipkin 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
*
* 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 zipkin2.server.internal;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;
import zipkin2.Component;
/** Makes sure all zipkin components end up in the /health endpoint. */
// This is an application listener to ensure the graph is fully constructed before doing health
public final class RegisterZipkinHealthIndicators implements ApplicationListener {
@Override
public void onApplicationEvent(ApplicationEvent event) {
if (!(event instanceof ApplicationReadyEvent)) return;
ConfigurableListableBeanFactory beanFactory =
((ApplicationReadyEvent) event).getApplicationContext().getBeanFactory();
ZipkinHealthIndicator healthIndicator = beanFactory.getBean(ZipkinHealthIndicator.class);
for (Component component : beanFactory.getBeansOfType(Component.class).values()) {
healthIndicator.addComponent(component);
}
}
}