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Unwrap a validator instance of specified type contained in SpringValidatorAdapter #37119

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Unwrap a validator instance of specified type contained in SpringValidatorAdapter #37119

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Unwrap a validator instance of specified type contained in SpringVali…
zpavloudis Aug 28, 2023
d0b4617
Polish "Unwrap a validator instance of specified type contained in Sp…
zpavloudis Sep 4, 2023
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17 changes: 17 additions & 0 deletions ...ure/src/main/java/org/springframework/boot/autoconfigure/validation/ValidatorAdapter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@
*
* @author Stephane Nicoll
* @author Phillip Webb
* @author Zisis Pavloudis
* @since 2.0.0
*/
public class ValidatorAdapter implements SmartValidator, ApplicationContextAware, InitializingBean, DisposableBean {
Expand Down Expand Up @@ -153,4 +154,20 @@ private static Validator wrap(Validator validator, boolean existingBean) {
return validator;
}

@Override
@SuppressWarnings("unchecked")
public <T> T unwrap(Class<T> type) {
if (this.target == null) {
return null;
}
if (type.isAssignableFrom(this.target.getClass())) {
if (this.target instanceof SpringValidatorAdapter adapter) {
return adapter.unwrap(type);
}
return (T) this.target;
}

throw new ValidationException("Cannot unwrap to " + type);
}

}