org.springframework.boot.autoconfigure.AutoConfigurations.java Source code

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Here is the source code for org.springframework.boot.autoconfigure.AutoConfigurations.java

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/*
 * 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.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<Class<?>> classes) {
        super(classes);
    }

    @Override
    protected Collection<Class<?>> sort(Collection<Class<?>> classes) {
        List<String> names = classes.stream().map(Class::getName).collect(Collectors.toList());
        List<String> 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<Class<?>> mergedClasses) {
        return new AutoConfigurations(mergedClasses);
    }

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

}