org.springframework.boot.actuate.health.DefaultReactiveHealthIndicatorRegistry Maven / Gradle / Ivy
/*
* Copyright 2012-2018 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.health;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.Map;
import org.springframework.util.Assert;
/**
* Default implementation of {@link ReactiveHealthIndicatorRegistry}.
*
* @author Vedran Pavic
* @author Stephane Nicoll
* @since 2.1.0
*/
public class DefaultReactiveHealthIndicatorRegistry
implements ReactiveHealthIndicatorRegistry {
private final Object monitor = new Object();
private final Map healthIndicators;
/**
* Create a new {@link DefaultReactiveHealthIndicatorRegistry}.
*/
public DefaultReactiveHealthIndicatorRegistry() {
this(new LinkedHashMap<>());
}
/**
* Create a new {@link DefaultReactiveHealthIndicatorRegistry} from the specified
* indicators.
* @param healthIndicators a map of {@link HealthIndicator}s with the key being used
* as an indicator name.
*/
public DefaultReactiveHealthIndicatorRegistry(
Map healthIndicators) {
Assert.notNull(healthIndicators, "HealthIndicators must not be null");
this.healthIndicators = new LinkedHashMap<>(healthIndicators);
}
@Override
public void register(String name, ReactiveHealthIndicator healthIndicator) {
Assert.notNull(healthIndicator, "HealthIndicator must not be null");
Assert.notNull(name, "Name must not be null");
synchronized (this.monitor) {
ReactiveHealthIndicator existing = this.healthIndicators.putIfAbsent(name,
healthIndicator);
if (existing != null) {
throw new IllegalStateException(
"HealthIndicator with name '" + name + "' already registered");
}
}
}
@Override
public ReactiveHealthIndicator unregister(String name) {
Assert.notNull(name, "Name must not be null");
synchronized (this.monitor) {
return this.healthIndicators.remove(name);
}
}
@Override
public ReactiveHealthIndicator get(String name) {
Assert.notNull(name, "Name must not be null");
synchronized (this.monitor) {
return this.healthIndicators.get(name);
}
}
@Override
public Map getAll() {
synchronized (this.monitor) {
return Collections
.unmodifiableMap(new LinkedHashMap<>(this.healthIndicators));
}
}
}