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Posted to dev@bval.apache.org by "Thomas Andraschko (JIRA)" <ji...@apache.org> on 2019/05/24 14:10:00 UTC
[jira] [Commented] (BVAL-174) Return Parameter Validation Ignore
void methods
[ https://issues.apache.org/jira/browse/BVAL-174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16847579#comment-16847579 ]
Thomas Andraschko commented on BVAL-174:
----------------------------------------
[~rmannibucau] [~dblevins] i attached a unittest
> Return Parameter Validation Ignore void methods
> -----------------------------------------------
>
> Key: BVAL-174
> URL: https://issues.apache.org/jira/browse/BVAL-174
> Project: BVal
> Issue Type: Improvement
> Affects Versions: 2.0.0
> Reporter: David Blevins
> Priority: Major
> Fix For: 2.0.3
>
> Attachments: BVAL-174.patch
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Given the following annotation:
> {code:java}
> import javax.validation.ConstraintValidator;
> import javax.validation.ConstraintValidatorContext;
> import javax.validation.Payload;
> import java.lang.annotation.Documented;
> import java.lang.annotation.Retention;
> import java.lang.annotation.Target;
> import java.util.Set;
> import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
> import static java.lang.annotation.ElementType.METHOD;
> import static java.lang.annotation.RetentionPolicy.RUNTIME;
> @Documented
> @javax.validation.Constraint(validatedBy = {Audience.Constraint.class})
> @Target({METHOD, ANNOTATION_TYPE})
> @Retention(RUNTIME)
> public @interface Audience {
> String value();
> Class<?>[] groups() default {};
> String message() default "The 'aud' claim must contain '{value}'";
> Class<? extends Payload>[] payload() default {};
> class Constraint implements ConstraintValidator<Audience, JsonWebToken> {
> private Audience audience;
> @Override
> public void initialize(final Audience constraint) {
> this.audience = constraint;
> }
> @Override
> public boolean isValid(final JsonWebToken value, final ConstraintValidatorContext context) {
> final Set<String> audience = value.getAudience();
> return audience != null && audience.contains(this.audience.value());
> }
> }
> }
> {code}
> BVal wil successfully avoid throwing errors when placed on a method like the following:
> {code:java}
> @GET
> @Path("foo")
> @Audience("movies")
> @RolesAllowed({"manager", "user"})
> public Movie getMovie() {
> return new Movie(1, "The Matrix", "Lana Wachowski");
> }
> {code}
> However on a method that returns void an exception will be throwing stating BVal cannot find a ConstraintValidator for return type void.
> {code:java}
> @POST
> @Audience("movies")
> @RolesAllowed("manager")
> public void addMovie(Movie newMovie) {
> store.put(newMovie.getId(), newMovie);
> }
> {code}
> If the BValInterceptor is updated to ignore checking return values of void methods, it appears to pass the Bean Validation TCK and solves the issue.
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