/*
 * 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
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 */

package org.springframework.boot.actuate.health;

import java.util.Map;

Strategy interface used to aggregate Health instances into a final one. 
 This is especially useful to combine subsystem states expressed through Health.getStatus() into one state for the entire system. The default implementation OrderedHealthAggregator sorts Status instances based on a priority list. 
 It is possible to add more complex Status types to the system. In that case either the OrderedHealthAggregator needs to be properly configured or users need to register a custom HealthAggregator as bean. 
Author:
Christian Dupuis
Since:
1.1.0
Deprecated:
since 2.2.0 in favor of StatusAggregator/**
 * Strategy interface used to aggregate {@link Health} instances into a final one.
 * <p>
 * This is especially useful to combine subsystem states expressed through
 * {@link Health#getStatus()} into one state for the entire system. The default
 * implementation {@link OrderedHealthAggregator} sorts {@link Status} instances based on
 * a priority list.
 * <p>
 * It is possible to add more complex {@link Status} types to the system. In that case
 * either the {@link OrderedHealthAggregator} needs to be properly configured or users
 * need to register a custom {@link HealthAggregator} as bean.
 *
 * @author Christian Dupuis
 * @since 1.1.0
 * @deprecated since 2.2.0 in favor of {@link StatusAggregator}
 */
@FunctionalInterface
@Deprecated
public interface HealthAggregator {

	
Aggregate several given Health instances into one. 
Params:
healths – the health instances to aggregate
Returns:
the aggregated health/**
	 * Aggregate several given {@link Health} instances into one.
	 * @param healths the health instances to aggregate
	 * @return the aggregated health
	 */
	Health aggregate(Map<String, Health> healths);

}