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Simplify logic around getting item type of a function type

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This commit is contained in:
Oleg Zhurakousky
2020-11-04 11:29:01 +01:00
parent 1209fa1053
commit dd0f70bc8e
3 changed files with 22 additions and 78 deletions
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15
spring-cloud-function-context/src/main/java/org/springframework/cloud/function/context/catalog/SimpleFunctionRegistry.java
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@@ -347,6 +347,21 @@ public class SimpleFunctionRegistry implements FunctionRegistry, FunctionInspect
return this.inputType;
}
/**
* Return the actual {@link Type} of the item of the provided type.
* This method is context specific and is not a general purpose utility method. The context is that the provided
* {@link Type} may represent the input/output of a function where such type could be wrapped in
* {@link Message}, {@link Flux} or {@link Mono}, so this method returns generic value of such type or itself if not wrapped.
* @param type typically input or output Type of the function (see {@link #getInputType()} or {@link #getOutputType()}.
* @return the type of the item if wrapped otherwise the provided type.
*/
public Type getItemType(Type type) {
if (FunctionTypeUtils.isPublisher(type) || FunctionTypeUtils.isMessage(type)) {
type = FunctionTypeUtils.getGenericType(type);
}
return type;
}
/**
* Use individual {@link #getInputType()}, {@link #getOutputType()} and their variants as well as
* other supporting operations instead.