Examples with CrossOriginConfig io.helidon.webserver.cors.CrossOriginConfig used on opensource projects

Example 1 with CrossOriginConfig

use of io.helidon.webserver.cors.CrossOriginConfig in project helidon by oracle.

the class CorsCdiExtension method crossOriginConfigFromAnnotationOnAssociatedMethod.

private Optional<CrossOriginConfig> crossOriginConfigFromAnnotationOnAssociatedMethod(Method resourceMethod) {
    /*
         * Only @OPTIONS methods should bear the @CrossOrigin annotation, but the annotation on such methods applies to
         * all methods sharing the same path.
         */
    Class<?> resourceClass = resourceMethod.getDeclaringClass();
    CrossOrigin corsAnnot;
    OPTIONS optsAnnot = resourceMethod.getAnnotation(OPTIONS.class);
    Path pathAnnot = resourceMethod.getAnnotation(Path.class);
    if (optsAnnot != null) {
        corsAnnot = resourceMethod.getAnnotation(CrossOrigin.class);
    } else {
        // Find the @OPTIONS method with the same path as the resource method, if any. That one might have a
        // @CrossOrigin annotation which applies to the resource method.
        Optional<Method> optionsMethod = Arrays.stream(resourceClass.getDeclaredMethods()).filter(m -> {
            OPTIONS optsAnnot2 = m.getAnnotation(OPTIONS.class);
            Path pathAnnot2 = m.getAnnotation(Path.class);
            if (optsAnnot2 != null) {
                if (pathAnnot != null) {
                    return pathAnnot2 != null && pathAnnot.value().equals(pathAnnot2.value());
                }
                return pathAnnot2 == null;
            }
            return false;
        }).findFirst();
        corsAnnot = optionsMethod.map(m -> m.getAnnotation(CrossOrigin.class)).orElse(null);
    }
    return Optional.ofNullable(corsAnnot == null ? null : annotationToConfig(corsAnnot));
}