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/*
 * 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.autoconfigure;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;

import org.springframework.boot.context.annotation.Configurations;
import org.springframework.core.Ordered;
import org.springframework.core.type.classreading.SimpleMetadataReaderFactory;
import org.springframework.util.ClassUtils;

/**
 * {@link Configurations} representing auto-configuration {@code @Configuration} classes.
 *
 * @author Phillip Webb
 * @since 2.0.0
 */
public class AutoConfigurations extends Configurations implements Ordered {

	private static final AutoConfigurationSorter SORTER = new AutoConfigurationSorter(new SimpleMetadataReaderFactory(),
			null);

	private static final Ordered ORDER = new AutoConfigurationImportSelector();

	protected AutoConfigurations(Collection> classes) {
		super(classes);
	}

	@Override
	protected Collection> sort(Collection> classes) {
		List names = classes.stream().map(Class::getName).collect(Collectors.toList());
		List sorted = SORTER.getInPriorityOrder(names);
		return sorted.stream()
			.map((className) -> ClassUtils.resolveClassName(className, null))
			.collect(Collectors.toCollection(ArrayList::new));
	}

	@Override
	public int getOrder() {
		return ORDER.getOrder();
	}

	@Override
	protected AutoConfigurations merge(Set> mergedClasses) {
		return new AutoConfigurations(mergedClasses);
	}

	public static AutoConfigurations of(Class... classes) {
		return new AutoConfigurations(Arrays.asList(classes));
	}

}




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