spring ValidationExceptionFailureAnalyzer 源码
springboot ValidationExceptionFailureAnalyzer 代码
文件路径：/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/diagnostics/analyzer/ValidationExceptionFailureAnalyzer.java
/*
* Copyright 2012-2021 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.
*/
package org.springframework.boot.diagnostics.analyzer;
import jakarta.validation.ValidationException;
import org.springframework.boot.diagnostics.AbstractFailureAnalyzer;
import org.springframework.boot.diagnostics.FailureAnalysis;
import org.springframework.boot.diagnostics.FailureAnalyzer;
/**
* A {@link FailureAnalyzer} that performs analysis of failures caused by a
* {@link ValidationException}.
*
* @author Andy Wilkinson
*/
class ValidationExceptionFailureAnalyzer extends AbstractFailureAnalyzer<ValidationException> {
private static final String JAVAX_MISSING_IMPLEMENTATION_MESSAGE = "Unable to create a "
+ "Configuration, because no Bean Validation provider could be found";
private static final String JAKARTA_MISSING_IMPLEMENTATION_MESSAGE = "Unable to create a "
+ "Configuration, because no Jakarta Bean Validation provider could be found";
@Override
protected FailureAnalysis analyze(Throwable rootFailure, ValidationException cause) {
if (cause.getMessage().startsWith(JAVAX_MISSING_IMPLEMENTATION_MESSAGE)
|| cause.getMessage().startsWith(JAKARTA_MISSING_IMPLEMENTATION_MESSAGE)) {
return new FailureAnalysis(
"The Bean Validation API is on the classpath but no implementation could be found",
"Add an implementation, such as Hibernate Validator, to the classpath", cause);
}
return null;
}
}
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