org.springframework.boot.actuate.autoconfigure.health.AbstractCompositeHealthContributorConfiguration Maven / Gradle / Ivy
/*
* Copyright 2012-2023 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.autoconfigure.health;
import java.util.Map;
import java.util.function.Function;
import org.springframework.util.Assert;
/**
* Base class for health contributor configurations that can combine source beans into a
* composite.
*
* @param the contributor type
* @param the health indicator type
* @param the bean type
* @author Stephane Nicoll
* @author Phillip Webb
* @since 2.2.0
*/
public abstract class AbstractCompositeHealthContributorConfiguration {
private final Function indicatorFactory;
/**
* Creates a {@code AbstractCompositeHealthContributorConfiguration} that will use the
* given {@code indicatorFactory} to create health indicator instances.
* @param indicatorFactory the function to create health indicators
* @since 3.0.0
*/
protected AbstractCompositeHealthContributorConfiguration(Function indicatorFactory) {
this.indicatorFactory = indicatorFactory;
}
protected final C createContributor(Map beans) {
Assert.notEmpty(beans, "Beans must not be empty");
if (beans.size() == 1) {
return createIndicator(beans.values().iterator().next());
}
return createComposite(beans);
}
protected abstract C createComposite(Map beans);
protected I createIndicator(B bean) {
return this.indicatorFactory.apply(bean);
}
}