Not able to create a asset using the asset manager.

[rohit_w]

Hi,

I am trying to create an Image asset in the DAM of my project. The code is working fine without any errors but I am not getting any image in the repository.

package Day7.core.servlets;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStream;

import java.io.PrintWriter;

import java.util.Map;

import java.util.Map.Entry;

import javax.servlet.Servlet;

import javax.servlet.ServletException;

import org.apache.sling.api.SlingHttpServletRequest;

import org.apache.sling.api.SlingHttpServletResponse;

import org.apache.sling.api.request.RequestParameter;

import org.apache.sling.api.resource.LoginException;

import org.apache.sling.api.resource.ResourceResolver;

import org.apache.sling.api.resource.ResourceResolverFactory;

import org.apache.sling.api.servlets.HttpConstants;

import org.apache.sling.api.servlets.SlingAllMethodsServlet;

import org.osgi.framework.Constants;

import org.osgi.service.component.annotations.Component;

import org.osgi.service.component.annotations.Reference;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

import com.day.cq.dam.api.AssetManager;

@Component (service = Servlet.class,

property = {

Constants.SERVICE_DESCRIPTION + "=Asset Upload",

"sling.servlet.methods=" + HttpConstants.METHOD_GET,

"sling.servlet.paths=" + "/bin/day7/assetUpload",

"sling.servlet.extensions=" + "html"

})

public class AssetUpload extends SlingAllMethodsServlet{

private static final long serialVersionUID = 1L;

private static final Logger logger = LoggerFactory.getLogger(AssetUpload.class);

@Reference

private ResourceResolverFactory resolverFactory;

@Override

protected void doGet(final SlingHttpServletRequest request,

            final SlingHttpServletResponse response) throws ServletException, IOException {

ResourceResolver resourceResolver;

PrintWriter out = null;

out = response.getWriter();

try {

resourceResolver = resolverFactory.getResourceResolver(null);

AssetManager assetManager = resourceResolver.adaptTo(AssetManager.class);

FileInputStream is = new FileInputStream("C:\\Users\\rohit.w\\Downloads\\1650.JPG");

String copyPath = "/content/dam/Day7";

assetManager.createAsset(copyPath, is, "image/jpeg", true);

out.println("Asset Created new");

} catch (LoginException le) {

logger.error("LoginException", le);

}

}

}

Can please somebody help me out on this as to why my image is not being saved in the repository.

Thanks in advance.

[edubey]

Seems like you are missing two things:

1. resolverFactory.getResourceResolver(null); won't give you proper permissions[0]. Create a service user and then use it [1]

[0] https://sling.apache.org/apidocs/sling7/org/apache/sling/api/resource/ResourceResolverFactory.html#g...

[1] https://helpx.adobe.com/experience-manager/6-3/sites/administering/using/security-service-users.html

2. resourceResolver.commit() to save changes [2]

[2] https://sling.apache.org/apidocs/sling7/org/apache/sling/api/resource/ResourceResolver.html#commit--

[kautuk_sahni]

I will recommend you to follow this docs: Adobe Experience Manager Help | Uploading files to Adobe Experience Manager DAM using AssetManager A...

If you still faces the problem then it would be great to share the error that you are getting.

[rohit_w · Accepted solution]

Seems I was taking the resource resolver reference wrong. The correct way is:

ResourceResolver resourceResolver = request.getResourceResolver();

[rohit_w]

I was following this doc only.

[sama73814561]

Hi Rohit,

Thanks for your post. This is very helpful to me.

I am looking for a way to upload assets to AEM DAM as a batch upload. Once uploaded the assets, I need to get the metadata of the uploaded assets from DAM.

I am trying to understand:

- how the authentication works in the AssetManager call. I mean, how to pass the credential once extended the AssetManager interface.

- how to get the metadata of the published assets

Could you please shed some light?

Thanks.