io.micronaut.validation.exceptions.ValidationExceptionHandler Maven / Gradle / Ivy
/*
* Copyright 2017-2020 original 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 io.micronaut.validation.exceptions;
import io.micronaut.context.annotation.Requires;
import io.micronaut.http.HttpRequest;
import io.micronaut.http.HttpResponse;
import io.micronaut.http.MutableHttpResponse;
import io.micronaut.http.hateoas.JsonError;
import io.micronaut.http.hateoas.Link;
import io.micronaut.http.server.exceptions.ExceptionHandler;
import io.micronaut.http.server.exceptions.response.Error;
import io.micronaut.http.server.exceptions.response.ErrorContext;
import io.micronaut.http.server.exceptions.response.ErrorResponseProcessor;
import jakarta.inject.Singleton;
import org.grails.datastore.mapping.validation.ValidationException;
import org.springframework.validation.Errors;
import org.springframework.validation.FieldError;
import java.util.Optional;
/**
* Default Exception handler for GORM validation errors.
*
* @author graemerocher
* @since 1.0
*/
@Singleton
@Requires(classes = ValidationException.class)
public class ValidationExceptionHandler implements ExceptionHandler> {
private final ErrorResponseProcessor responseProcessor;
/**
* Constructor.
* @param responseProcessor Error Response Processor
*/
public ValidationExceptionHandler(ErrorResponseProcessor responseProcessor) {
this.responseProcessor = responseProcessor;
}
@Override
public HttpResponse handle(HttpRequest request, ValidationException exception) {
Errors errors = exception.getErrors();
FieldError fieldError = errors.getFieldError();
MutableHttpResponse response = HttpResponse.badRequest();
if (responseProcessor != null) {
return responseProcessor.processResponse(ErrorContext.builder(request)
.cause(exception)
.error(new Error() {
@Override
public String getMessage() {
return exception.getMessage();
}
@Override
public Optional getPath() {
return Optional.ofNullable(fieldError).map(FieldError::getField);
}
})
.build(), response);
} else {
return response.body(new JsonError(exception.getMessage())
.path(fieldError != null ? fieldError.getField() : null)
.link(Link.SELF, Link.of(request.getUri())));
}
}
}