Sightly question: how to adapt a class with a path

[BigT168]

In java code, I can do this:

Resource articleResource = resourceResolver.getResource("/somepath/for/article");
  Article article = articleResource.adaptTo(Article.class);

Can Sightly do the same? and how?

In AEM 6.3 with sling models.

Thanks.

[VeenaVikraman · Accepted solution]

Probably my answer would be yes. Try the below code

  Let me know if it doesn't work

Thanks

Veena

[BigT168]

That's what I am doing.

Probably I should ask if we can do this in the HTL code

data-sly-use or data-sly-resource?

Thanks for your response.

[VeenaVikraman]

I am not sure if that is possible, because as far as I could understand, data-sly-resource should refer a resource which will resolve using sling resolution principles . I am not sure if we can refer a page path and try to resolve it as a resource. May be feike_visser​ can help you in this

Thanks

Veena

[BigT168]

Hi Veena:

this line Article article = articleResource.adaptTo(Article.class); return null; How to find out why adaptTo doesn't work?

Thanks.

[VeenaVikraman]

Are you sure Article is a valid Adapter Class. ? Is that a custom adaptable class you have created ?

[BigT168]

Yes, this is a custom adaptable class.

@Model(adaptables = SlingHttpServletRequest.class, adapters = Article.class, resourceType = ArticleImpl.RESOURCE_TYPE)

@Exporter(name = Constants.EXPORTER_NAME, extensions = Constants.EXPORTER_EXTENSION)

public class ArticleImpl implements Article {

@ScriptVariable

    private ValueMap properties;

    @ScriptVariable

    private Style currentStyle;

    @ScriptVariable

    private Page currentPage;

    @SlingObject

    private ResourceResolver resourceResolver;

    @SlingObject

    private Resource resource;

    @Self

    private SlingHttpServletRequest request;

//some fields definition

@PostConstruct

    private void init() {

    tagManager = resourceResolver.adaptTo(TagManager.class);

    fileReference = properties.get("fileReference", "");

    populatePrimaryTag();

    populateArticleDate();

    populateAuthors();

    }

//some methods

}

Anything particular I missed?

Thanks a lot.

[smacdonald2008]

Although the front end is JSP - the backend shows you how to adapt and use Sling Models -- see:

Adobe Experience Manager Help | Creating Adobe Experience Manager 6.3 Sling Model Components

As you can see - this shows how to adapt a custom class with @Model.

[BigT168]

If I change the Article to adaptables to Resource.class, this line is fine

Article article = articleResource.adaptTo(Article.class)

The Article.java code is changed to below, other parts are the same.

@Model(adaptables=Resource.class)

public class Article {

}

[Feike_Visser1]

What you want still requires some code now, I did raise this request to have it more flexible to adapt objects in HTL.

[SLING-6504] Use-api to support more flexible way to adapt from different objects - ASF JIRA

From AEM6.3 you can use data-sly-use to get the resource, but you still need some code to adapt.

[BigT168]

Sorry, the correction answer should be

@Model(adaptables = Resource.class)

public class Sample {

private final Logger LOG = LoggerFactory.getLogger(getClass());

@Inject

SlingHttpServletRequest request;

@PostConstruct

protected void init() {

try {

Resource articleResource = request.getResourceResolver().getResource("/somepath/for/article");
  Article article = articleResource.adaptTo(Article.class);

.......

....

...

}

[VeenaVikraman]

I think @Model(adaptables = Resource.class) and @Model(adaptables = SlingHttpServletRequest.class) both should work

[BigT168]

I tried, only adaptables = Resource.class works. Other one returns null after articleResource.adaptTo(Article.class);

[VeenaVikraman]

okay cool. I don't find an option to edit the answer after it is marked correct.