Hi @ArindamCh
Step 1: Create a System User for Distribution
Create a service user for your custom distribution agent:
Then map it to your bundle:
Give that user permission to:
Read /content/dam/fmdita-outputs
Access /bin/distribution/json-exporter
Use AEM Useradmin Console (http://localhost:4502/useradmin
) → distribution-service → Permissions → allow read + replicate + modify.
Step 2: Implement Your Servlet
Now implement a SlingAllMethodsServlet that uses the FileVaultPackageExporter to export the JSON.
package com.example.distribution.core.servlets;
import org.apache.sling.api.servlets.SlingAllMethodsServlet;
import org.apache.sling.api.SlingHttpServletRequest;
import org.apache.sling.api.SlingHttpServletResponse;
import org.apache.sling.api.resource.ResourceResolver;
import org.apache.sling.api.resource.ResourceResolverFactory;
import org.apache.sling.api.servlets.ServletResolverConstants;
import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.LoginException;
import org.apache.sling.commons.json.JSONObject;
import org.osgi.service.component.annotations.Component;
import org.osgi.service.component.annotations.Reference;
import org.apache.jackrabbit.vault.packaging.exporter.FileVaultPackageExporter;
import java.io.IOException;
@Component(service = javax.servlet.Servlet.class,
property = {
ServletResolverConstants.SLING_SERVLET_PATHS + "=/bin/distribution/json-exporter",
"sling.servlet.methods=POST"
})
public class JsonExporterServlet extends SlingAllMethodsServlet {
@Reference
private FileVaultPackageExporter fileVaultPackageExporter;
@Reference
private ResourceResolverFactory resolverFactory;
@Override
protected void doPost(SlingHttpServletRequest request, SlingHttpServletResponse response)
throws IOException {
String path = request.getParameter("path");
try (ResourceResolver resolver = resolverFactory.getServiceResourceResolver(
java.util.Collections.singletonMap(ResourceResolverFactory.SUBSERVICE, "distribution-service"))) {
Resource resource = resolver.getResource(path);
if (resource != null) {
// Example export
fileVaultPackageExporter.createPackage(
resolver.adaptTo(org.apache.jackrabbit.api.JackrabbitSession.class),
resource.getPath(),
null, // workspace filter
null, // meta-inf
true, // incremental
response.getOutputStream() // stream output or save to file
);
response.setStatus(200);
response.getWriter().write("JSON Exported Successfully: " + path);
} else {
response.sendError(404, "Resource not found: " + path);
}
} catch (LoginException e) {
response.sendError(500, "Service User Login Failed: " + e.getMessage());
} catch (Exception e) {
response.sendError(500, "Export Failed: " + e.getMessage());
}
}
}
