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77 changes: 77 additions & 0 deletions
77
...t/src/main/java/org/springframework/validation/beanvalidation/DefaultMethodValidator.java
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/* | ||
* Copyright 2002-2023 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. | ||
*/ | ||
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package org.springframework.validation.beanvalidation; | ||
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import java.lang.reflect.Method; | ||
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import org.springframework.lang.Nullable; | ||
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/** | ||
* Default implementation of {@link MethodValidator} that delegates to a | ||
* {@link MethodValidationAdapter}. Also, convenient as a base class that allows | ||
* handling of the validation result. | ||
* | ||
* @author Rossen Stoyanchev | ||
* @since 6.1 | ||
*/ | ||
public class DefaultMethodValidator implements MethodValidator { | ||
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private final MethodValidationAdapter adapter; | ||
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public DefaultMethodValidator(MethodValidationAdapter adapter) { | ||
this.adapter = adapter; | ||
} | ||
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@Override | ||
public Class<?>[] determineValidationGroups(Object bean, Method method) { | ||
return MethodValidationAdapter.determineValidationGroups(bean, method); | ||
} | ||
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@Override | ||
public void validateArguments(Object target, Method method, Object[] arguments, Class<?>[] groups) { | ||
MethodValidationResult result = this.adapter.validateMethodArguments(target, method, arguments, groups); | ||
handleArgumentsResult(target, method, arguments, groups, result); | ||
} | ||
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/** | ||
* Subclasses can override this to handle the result of argument validation. | ||
* By default, {@link MethodValidationResult#throwIfViolationsPresent()} is called. | ||
*/ | ||
protected void handleArgumentsResult( | ||
Object bean, Method method, Object[] arguments, Class<?>[] groups, MethodValidationResult result) { | ||
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result.throwIfViolationsPresent(); | ||
} | ||
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public void validateReturnValue(Object target, Method method, @Nullable Object returnValue, Class<?>[] groups) { | ||
MethodValidationResult result = this.adapter.validateMethodReturnValue(target, method, returnValue, groups); | ||
handleReturnValueResult(target, method, returnValue, groups, result); | ||
} | ||
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/** | ||
* Subclasses can override this to handle the result of return value validation. | ||
* By default, {@link MethodValidationResult#throwIfViolationsPresent()} is called. | ||
*/ | ||
protected void handleReturnValueResult( | ||
Object bean, Method method, @Nullable Object returnValue, Class<?>[] groups, MethodValidationResult result) { | ||
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result.throwIfViolationsPresent(); | ||
} | ||
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} |
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71
...-context/src/main/java/org/springframework/validation/beanvalidation/MethodValidator.java
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/* | ||
* Copyright 2002-2023 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. | ||
*/ | ||
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package org.springframework.validation.beanvalidation; | ||
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import java.lang.reflect.Method; | ||
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import org.springframework.lang.Nullable; | ||
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/** | ||
* Contract to apply method validation without directly using | ||
* {@link MethodValidationAdapter}. For use in components where Jakarta Bean | ||
* Validation is an optional dependency and may or may not be present on the | ||
* classpath. If that's not a concern, use {@code MethodValidationAdapter} | ||
* directly. | ||
* | ||
* @author Rossen Stoyanchev | ||
* @since 6.1 | ||
* @see DefaultMethodValidator | ||
*/ | ||
public interface MethodValidator { | ||
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/** | ||
* Use this method determine the validation groups to pass into | ||
* {@link #validateArguments(Object, Method, Object[], Class[])} and | ||
* {@link #validateReturnValue(Object, Method, Object, Class[])}. | ||
* @param target the target Object | ||
* @param method the target method | ||
* @return the applicable validation groups as a {@code Class} array | ||
* @see MethodValidationAdapter#determineValidationGroups(Object, Method) | ||
*/ | ||
Class<?>[] determineValidationGroups(Object target, Method method); | ||
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/** | ||
* Validate the given method arguments and return the result of validation. | ||
* @param target the target Object | ||
* @param method the target method | ||
* @param arguments candidate arguments for a method invocation | ||
* @param groups groups for validation determined via | ||
* {@link #determineValidationGroups(Object, Method)} | ||
* @throws MethodValidationException should be raised in case of validation | ||
* errors unless the implementation handles those errors otherwise (e.g. | ||
* by injecting {@code BindingResult} into the method). | ||
*/ | ||
void validateArguments(Object target, Method method, Object[] arguments, Class<?>[] groups); | ||
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/** | ||
* Validate the given return value and return the result of validation. | ||
* @param target the target Object | ||
* @param method the target method | ||
* @param returnValue value returned from invoking the target method | ||
* @param groups groups for validation determined via | ||
* {@link #determineValidationGroups(Object, Method)} | ||
* @throws MethodValidationException in case of validation errors | ||
*/ | ||
void validateReturnValue(Object target, Method method, @Nullable Object returnValue, Class<?>[] groups); | ||
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} |