If we had component resource set up as such:
We can Assume it will work as such:
Also in a servlet we might be able to do something like
Resource myResource = resourceResolver.getResource(request, "path/to/mycomponent");
I'm just curious how I might be able to get the .json representation in a servlet context as well.
I've done something that sort of solves this, but I was wondering if there was an alternate way, as this solution has huge limitations. Basically I load the Node at the path and do JSONDumps of the Node and it's children. This would allow me to get a larger set of JSON from the resource at the mycomponent.getPath(), but it doesn't allow me the ability to pull the custom JSON view i've created via mycomponent.JSON.jsp.
any thoughts/advice would be great, thank you.
The title of the question sounds like you want wanted to get the equivalent of a cURL/AJAX call to /path/to/mycomponent.-1.json but within a Servlet or other Java class.
You can use the org.apache.sling.commons.json.jcr.JsonItemWriter class to dump a JCR node into a JSONObject with infinite recursion. By passing in a Set into the constructor you can specify which properties to exclude from the final JSON. See http://www.nateyolles.com/blog/2015/12/converting-aem-sling-resources-to-json for more examples.
Resource resource = resolver.getResource("/content/my-app/my-page");
if (resource != null) {
Node node = resource.adaptTo(Node.class);
StringWriter stringWriter = new StringWriter();
JsonItemWriter jsonWriter = new JsonItemWriter(null);
try {
jsonWriter.dump(node, stringWriter, -1);
JSONObject jsonObject = new JSONObject(stringWriter.toString());
} catch (RepositoryException | JSONException e) {
LOGGER.error("Could not create JSON", e);
}
}
You can also use the org.apache.sling.engine.SlingRequestProcessor class as Bertrand discussed above. See http://www.nateyolles.com/blog/2015/10/get-rendered-html-for-an-aem-resource-or-component for more examples.
@Reference
private RequestResponseFactory requestResponseFactory;
@Reference
private SlingRequestProcessor requestProcessor;
@Override
protected void doGet(SlingHttpServletRequest request, SlingHttpServletResponse response)
throws ServletException, IOException {
/* Setup request */
HttpServletRequest req = requestResponseFactory.createRequest("GET",
"/content/my-app/my-page.-1.json");
/* Setup response */
ByteArrayOutputStream out = new ByteArrayOutputStream();
HttpServletResponse resp = requestResponseFactory.createResponse(out);
/* Process request through Sling */
requestProcessor.processRequest(req, resp, request.getResourceResolver());
String jsonString = out.toString();
}