spring StatusAggregator 源码
springboot StatusAggregator 代码
文件路径：/spring-boot-project/spring-boot-actuator/src/main/java/org/springframework/boot/actuate/health/StatusAggregator.java
/*
* Copyright 2012-2020 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.Arrays;
import java.util.LinkedHashSet;
import java.util.Set;
/**
* Strategy used to aggregate {@link Status} instances.
* <p>
* This is required in order to combine subsystem states expressed through
* {@link Health#getStatus()} into one state for the entire system.
*
* @author Phillip Webb
* @since 2.2.0
*/
@FunctionalInterface
public interface StatusAggregator {
/**
* Return {@link StatusAggregator} instance using default ordering rules.
* @return a {@code StatusAggregator} with default ordering rules.
* @since 2.3.0
*/
static StatusAggregator getDefault() {
return SimpleStatusAggregator.INSTANCE;
}
/**
* Return the aggregate status for the given set of statuses.
* @param statuses the statuses to aggregate
* @return the aggregate status
*/
default Status getAggregateStatus(Status... statuses) {
return getAggregateStatus(new LinkedHashSet<>(Arrays.asList(statuses)));
}
/**
* Return the aggregate status for the given set of statuses.
* @param statuses the statuses to aggregate
* @return the aggregate status
*/
Status getAggregateStatus(Set<Status> statuses);
}
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