/
DefaultHealthIndicatorRegistry.java
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/
DefaultHealthIndicatorRegistry.java
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/*
* Copyright 2012-2016 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
*
* 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 org.springframework.boot.actuate.health;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.springframework.util.Assert;
/**
* Default implementation of {@link HealthIndicatorRegistry}.
*
* @author Vedran Pavic
*/
public class DefaultHealthIndicatorRegistry implements HealthIndicatorRegistry {
private final Map<String, HealthIndicator> healthIndicators =
new HashMap<String, HealthIndicator>();
@Override
public void register(String name, HealthIndicator healthIndicator) {
Assert.notNull(healthIndicator, "HealthIndicator must not be null");
synchronized (this.healthIndicators) {
if (this.healthIndicators.get(name) != null) {
throw new IllegalStateException(
"HealthIndicator with name '" + name + "' already registered");
}
this.healthIndicators.put(name, healthIndicator);
}
}
@Override
public HealthIndicator unregister(String name) {
synchronized (this.healthIndicators) {
return this.healthIndicators.remove(name);
}
}
@Override
public HealthIndicator get(String name) {
synchronized (this.healthIndicators) {
return this.healthIndicators.get(name);
}
}
@Override
public Map<String, HealthIndicator> getAll() {
synchronized (this.healthIndicators) {
return Collections.unmodifiableMap(
new HashMap<String, HealthIndicator>(this.healthIndicators));
}
}
}