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SimpleMetadataReaderFactory is capable of resolving inner class names with dot syntax now (analogous to ClassUtils.forName) 

Issue: SPR-12390
This commit is contained in:
Juergen Hoeller 2014-10-29 22:03:01 +01:00
parent 807864fa9a
commit 725ad0df50
2 changed files with 28 additions and 2 deletions
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10
spring-context/src/test/java/org/springframework/context/annotation/ConfigurationClassPostProcessorTests.java
View File

@ -86,6 +86,16 @@ public class ConfigurationClassPostProcessorTests {
assertSame(foo, bar.foo);
}
@Test
public void configurationIntrospectionOfInnerClassesWorksWithDotNameSyntax() {
beanFactory.registerBeanDefinition("config", new RootBeanDefinition(getClass().getName() + ".SingletonBeanConfig"));
ConfigurationClassPostProcessor pp = new ConfigurationClassPostProcessor();
pp.postProcessBeanFactory(beanFactory);
Foo foo = beanFactory.getBean("foo", Foo.class);
Bar bar = beanFactory.getBean("bar", Bar.class);
assertSame(foo, bar.foo);
}
/**
* Tests the fix for SPR-5655, a special workaround that prefers reflection
* over ASM if a bean class is already loaded.

20
spring-core/src/main/java/org/springframework/core/type/classreading/SimpleMetadataReaderFactory.java
View File

@ -1,5 +1,5 @@
/*
* Copyright 2002-2012 the original author or authors.
* Copyright 2002-2014 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.
@ -74,7 +74,23 @@ public class SimpleMetadataReaderFactory implements MetadataReaderFactory {
public MetadataReader getMetadataReader(String className) throws IOException {
String resourcePath = ResourceLoader.CLASSPATH_URL_PREFIX +
ClassUtils.convertClassNameToResourcePath(className) + ClassUtils.CLASS_FILE_SUFFIX;
return getMetadataReader(this.resourceLoader.getResource(resourcePath));
Resource resource = this.resourceLoader.getResource(resourcePath);
if (!resource.exists()) {
// Maybe an inner class name using the dot name syntax? Need to use the dollar syntax here...
// ClassUtils.forName has an equivalent check for resolution into Class references later on.
int lastDotIndex = className.lastIndexOf('.');
if (lastDotIndex != -1) {
String innerClassName =
className.substring(0, lastDotIndex) + '$' + className.substring(lastDotIndex + 1);
String innerClassResourcePath = ResourceLoader.CLASSPATH_URL_PREFIX +
ClassUtils.convertClassNameToResourcePath(innerClassName) + ClassUtils.CLASS_FILE_SUFFIX;
Resource innerClassResource = this.resourceLoader.getResource(innerClassResourcePath);
if (innerClassResource.exists()) {
resource = innerClassResource;
}
}
}
return getMetadataReader(resource);
}
@Override