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Posted to dev@sling.apache.org by "Stefan Seifert (Jira)" <ji...@apache.org> on 2022/01/07 07:28:00 UTC
[jira] [Closed] (SLING-7256) Sling Models injector for CAConfig
[ https://issues.apache.org/jira/browse/SLING-7256?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Stefan Seifert closed SLING-7256.
---------------------------------
> Sling Models injector for CAConfig
> ----------------------------------
>
> Key: SLING-7256
> URL: https://issues.apache.org/jira/browse/SLING-7256
> Project: Sling
> Issue Type: New Feature
> Components: Sling Models
> Reporter: Henry Kuijpers
> Assignee: Stefan Seifert
> Priority: Major
> Fix For: Models Context-Aware Configuration 1.0.0
>
>
> It would be great to have a Sling Models injector for CAConfig.
> An example could be:
> {code}
> @Component
> public class ContextAwareConfigurationInjector implements Injector {
> public String getName() {
> return "ca-config";
> }
> public Object getValue(Object adaptable, String name, Type declaredType, AnnotatedElement element,
> DisposalCallbackRegistry callbackRegistry) {
> if (isConfigurationObject(declaredType)) {
> final Resource resource;
> if (adaptable instanceof Resource) {
> resource = (Resource) adaptable;
> } else if (adaptable instanceof SlingHttpServletRequest) {
> // TODO: Is this always the correct resource? (Most often we want the one in /content)
> // So we do not want /conf/... for example
> final SlingHttpServletRequest request = (SlingHttpServletRequest)adaptable;
> final ResourceResolver resourceResolver = request.getResourceResolver();
> resource = resourceResolver.resolve(request, request.getRequestURI());
> } else {
> throw new IllegalArgumentException("Either a resource or the request should be used");
> }
> final ConfigurationBuilder builder = resource.adaptTo(ConfigurationBuilder.class);
> if (builder != null) {
> return builder.as((Class<?>) declaredType);
> }
> }
> return null;
> }
> private static boolean isConfigurationObject(Type type) {
> if (!(type instanceof Class<?>)) {
> return false;
> }
> Class<?> clazz = (Class<?>) type;
> return clazz.isAnnotation() && clazz.isAnnotationPresent(Configuration.class);
> }
> }
> {code}
> + annotation:
> {code}
> @Target({ ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER })
> @Retention(RetentionPolicy.RUNTIME)
> @InjectAnnotation
> @Source("ca-config")
> @Qualifier
> public @interface CaConfig {
> }
> {code}
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