001/* 002 * Copyright 2012-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.boot.autoconfigure; 018 019import java.util.ArrayList; 020import java.util.Arrays; 021import java.util.Collection; 022import java.util.List; 023import java.util.Set; 024import java.util.stream.Collectors; 025 026import org.springframework.boot.context.annotation.Configurations; 027import org.springframework.core.Ordered; 028import org.springframework.core.type.classreading.SimpleMetadataReaderFactory; 029import org.springframework.util.ClassUtils; 030 031/** 032 * {@link Configurations} representing auto-configuration {@code @Configuration} classes. 033 * 034 * @author Phillip Webb 035 * @since 2.0.0 036 */ 037public class AutoConfigurations extends Configurations implements Ordered { 038 039 private static final AutoConfigurationSorter SORTER = new AutoConfigurationSorter( 040 new SimpleMetadataReaderFactory(), null); 041 042 private static final Ordered ORDER = new AutoConfigurationImportSelector(); 043 044 protected AutoConfigurations(Collection<Class<?>> classes) { 045 super(classes); 046 } 047 048 @Override 049 protected Collection<Class<?>> sort(Collection<Class<?>> classes) { 050 List<String> names = classes.stream().map(Class::getName) 051 .collect(Collectors.toList()); 052 List<String> sorted = SORTER.getInPriorityOrder(names); 053 return sorted.stream() 054 .map((className) -> ClassUtils.resolveClassName(className, null)) 055 .collect(Collectors.toCollection(ArrayList::new)); 056 } 057 058 @Override 059 public int getOrder() { 060 return ORDER.getOrder(); 061 } 062 063 @Override 064 protected AutoConfigurations merge(Set<Class<?>> mergedClasses) { 065 return new AutoConfigurations(mergedClasses); 066 } 067 068 public static AutoConfigurations of(Class<?>... classes) { 069 return new AutoConfigurations(Arrays.asList(classes)); 070 } 071 072}