zipkin2.server.internal.ZipkinHealthIndicator 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.boot.actuate.health.CompositeHealthIndicator;
import org.springframework.boot.actuate.health.Health;
import org.springframework.boot.actuate.health.HealthAggregator;
import org.springframework.boot.actuate.health.HealthIndicator;
import zipkin2.CheckResult;
import zipkin2.Component;
final class ZipkinHealthIndicator extends CompositeHealthIndicator {
ZipkinHealthIndicator(HealthAggregator healthAggregator) {
super(healthAggregator);
}
void addComponent(Component component) {
String healthName = component.getClass().getSimpleName();
healthName = healthName.replace("AutoValue_", "");
addHealthIndicator(healthName, new ComponentHealthIndicator(component));
}
static final class ComponentHealthIndicator implements HealthIndicator {
final Component component;
ComponentHealthIndicator(Component component) {
this.component = component;
}
/** synchronized to prevent overlapping requests to a storage backend */
@Override
public synchronized Health health() {
CheckResult result = component.check();
return result.ok() ? Health.up().build() : Health.down((Exception) result.error()).build();
}
}
}