me.j360.trace.server.RegisterZipkinHealthIndicators.java Source code

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Here is the source code for me.j360.trace.server.RegisterZipkinHealthIndicators.java

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/**
 * Copyright 2015-2016 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 me.j360.trace.server;

import me.j360.trace.core.Component;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.boot.context.event.ApplicationReadyEvent;
import org.springframework.context.ApplicationEvent;
import org.springframework.context.ApplicationListener;

/** 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
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);
        }
    }
}