spring AutoConfigurationExcludeFilter 源码
springboot AutoConfigurationExcludeFilter 代码
文件路径：/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/AutoConfigurationExcludeFilter.java
/*
* Copyright 2012-2022 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.io.IOException;
import java.util.ArrayList;
import java.util.List;
import org.springframework.beans.factory.BeanClassLoaderAware;
import org.springframework.boot.context.annotation.ImportCandidates;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.io.support.SpringFactoriesLoader;
import org.springframework.core.type.classreading.MetadataReader;
import org.springframework.core.type.classreading.MetadataReaderFactory;
import org.springframework.core.type.filter.TypeFilter;
/**
* A {@link TypeFilter} implementation that matches registered auto-configuration classes.
*
* @author Stephane Nicoll
* @since 1.5.0
*/
public class AutoConfigurationExcludeFilter implements TypeFilter, BeanClassLoaderAware {
private ClassLoader beanClassLoader;
private volatile List<String> autoConfigurations;
@Override
public void setBeanClassLoader(ClassLoader beanClassLoader) {
this.beanClassLoader = beanClassLoader;
}
@Override
public boolean match(MetadataReader metadataReader, MetadataReaderFactory metadataReaderFactory)
throws IOException {
return isConfiguration(metadataReader) && isAutoConfiguration(metadataReader);
}
private boolean isConfiguration(MetadataReader metadataReader) {
return metadataReader.getAnnotationMetadata().isAnnotated(Configuration.class.getName());
}
private boolean isAutoConfiguration(MetadataReader metadataReader) {
boolean annotatedWithAutoConfiguration = metadataReader.getAnnotationMetadata()
.isAnnotated(AutoConfiguration.class.getName());
return annotatedWithAutoConfiguration
|| getAutoConfigurations().contains(metadataReader.getClassMetadata().getClassName());
}
protected List<String> getAutoConfigurations() {
if (this.autoConfigurations == null) {
@SuppressWarnings("deprecation")
List<String> autoConfigurations = new ArrayList<>(
SpringFactoriesLoader.loadFactoryNames(EnableAutoConfiguration.class, this.beanClassLoader));
ImportCandidates.load(AutoConfiguration.class, this.beanClassLoader).forEach(autoConfigurations::add);
this.autoConfigurations = autoConfigurations;
}
return this.autoConfigurations;
}
}
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- 本文标签： Spring Boot Spring Java
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