/*
 * Copyright 2012-2019 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.Map;
import java.util.function.Function;

import org.springframework.util.Assert;

/**
 * Factory to create a {@link CompositeReactiveHealthIndicator}.
 *
 * @author Stephane Nicoll
 * @since 2.0.0
 * @deprecated since 2.1.0 in favor of
 * {@link CompositeReactiveHealthIndicator#CompositeReactiveHealthIndicator(HealthAggregator, ReactiveHealthIndicatorRegistry)}
 */
@Deprecated
public class CompositeReactiveHealthIndicatorFactory {

	private final Function<String, String> healthIndicatorNameFactory;

	public CompositeReactiveHealthIndicatorFactory(Function<String, String> healthIndicatorNameFactory) {
		this.healthIndicatorNameFactory = healthIndicatorNameFactory;
	}

	public CompositeReactiveHealthIndicatorFactory() {
		this(new HealthIndicatorNameFactory());
	}

	/**
	 * Create a {@link CompositeReactiveHealthIndicator} based on the specified health
	 * indicators. Each {@link HealthIndicator} are wrapped to a
	 * {@link HealthIndicatorReactiveAdapter}. If two instances share the same name, the
	 * reactive variant takes precedence.
	 * @param healthAggregator the {@link HealthAggregator}
	 * @param reactiveHealthIndicators the {@link ReactiveHealthIndicator} instances
	 * mapped by name
	 * @param healthIndicators the {@link HealthIndicator} instances mapped by name if
	 * any.
	 * @return a {@link ReactiveHealthIndicator} that delegates to the specified
	 * {@code reactiveHealthIndicators}.
	 */
	public CompositeReactiveHealthIndicator createReactiveHealthIndicator(HealthAggregator healthAggregator,
			Map<String, ReactiveHealthIndicator> reactiveHealthIndicators,
			Map<String, HealthIndicator> healthIndicators) {
		Assert.notNull(healthAggregator, "HealthAggregator must not be null");
		Assert.notNull(reactiveHealthIndicators, "ReactiveHealthIndicators must not be null");
		ReactiveHealthIndicatorRegistryFactory factory = new ReactiveHealthIndicatorRegistryFactory(
				this.healthIndicatorNameFactory);
		return new CompositeReactiveHealthIndicator(healthAggregator,
				factory.createReactiveHealthIndicatorRegistry(reactiveHealthIndicators, healthIndicators));
	}

}
