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Merge pull request #39737 from snicoll

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* pr/39737:
  Make resolution algorithm of ConnectionDetailsFactory more explicit

Closes gh-39737
This commit is contained in:
Scott Frederick 2024-02-27 13:00:27 -06:00
commit a9b3420857
1 changed files with 20 additions and 3 deletions
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23
spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/service/connection/ConnectionDetailsFactories.java
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@ -1,5 +1,5 @@
/*
* Copyright 2012-2023 the original author or authors.
* Copyright 2012-2024 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.
@ -122,13 +122,30 @@ public class ConnectionDetailsFactories {
@SuppressWarnings("unchecked")
private static <S, D extends ConnectionDetails> Registration<S, D> get(ConnectionDetailsFactory<S, D> factory) {
ResolvableType type = ResolvableType.forClass(ConnectionDetailsFactory.class, factory.getClass());
if (!type.hasUnresolvableGenerics()) {
Class<?>[] generics = type.resolveGenerics();
Class<?>[] generics = resolveGenerics(type);
if (generics != null) {
return new Registration<>((Class<S>) generics[0], (Class<D>) generics[1], factory);
}
return null;
}
/**
* Resolve the generics of the given {@link ResolvableType} or {@code null} if any
* of them cannot be resolved.
* @param type the type to inspect
* @return the resolved generics if they can be loaded from the classpath,
* {@code null} otherwise
*/
private static Class<?>[] resolveGenerics(ResolvableType type) {
Class<?>[] resolvedGenerics = type.resolveGenerics();
for (Class<?> genericRawType : resolvedGenerics) {
if (genericRawType == null) {
return null;
}
}
return resolvedGenerics;
}
}
}