DAM file InputStream is not reflecting original content in document management systems like Dropbox

What error are you getting ? Can you log the data on a log file and check if you are able to fetch the correct information ?

Moving this question to AEM assets Topic.

But please have a look at this:-InputStream object to read from DAM Asset

// An Asset doesn't have an InputStream per se. You need to use one of the renditions.

querybuilder = resource.getResourceResolver().adaptTo(QueryBuilder.class);

Query query = querybuilder.createQuery(PredicateGroup.create(map), session);

SearchResult result = query.getResult();

for (Hit hit : result.getHits())

     { try

          { Resource assetResource = hit.getResource();

            Asset asset = assetResource.adaptTo(Asset.class); // you probably need a null check here...

            Rendition original = asset.getOriginal();

            if (original != null)

                { // it is rare, but some assets might not have an original rendition

                   InputStream stream = original.getStream(); // do something with the stream

                }

          } catch (Exception e) { e.printStackTrace();

           }

}

More ways that I found out [not tested]:- Adobe CQ/Adobe AEM: How to read an external file in CQ

PS:- I am not an expert in assets side, just sharing what I found in the forums.

~kautuk

There is no error Veena_07 my code executing successfully, the issue is with InputStream. The InputStream is uploading the file in Dropbox with encrypted or corrupted form.

Thanks kautuksahni for the suggestion, I tried your piece of code the output is same.

Can you save this Stream to the filesystem or at any other JCR node to validate if this is an issue with Inputstream or if Dropbox API need some configuration.

~kautuk

Hi kautuksahni I tried to save Stream to other JCR node (Asset node) like

...

if (DamUtil.isAsset(resource)) {

     Asset asset = resource.adaptTo(Asset.class);

     if (asset != null) {

         asset.addRendition("original", inputStream, mimeType);

         session.save();

     }

     inputStream.close();

}

...

It is saving successfully but when I'm trying to open the file from my dam location it popup error box with message file content is corrupted.

So that means, you are not reading the content properly.  I will try this and send you a working code may be ? Actually I think I have something similar somewhere , let me get it and share it ... But it won't be nothing different from whatever above all have commented .

How are you fetching the mimeType ?

See this article - it will show you how to query assets and then convert them to an input stream. In this article - the custom service places the assets into a ZIP file: Adobe Experience Manager Help | Downloading Adobe Experience Manager DAM Assets using Sling Servlets and the Query Build…

ArpitBora​

     Since you are trying to upload the asset to Dropbox and not to DAM , this doesn't really answer your original question, but to make sure your input-stream is correct I would recommend you to use Asset Manager API to upload the assets programatically to DAM.

You can find a sample here Adobe Experience Manager Help | Uploading files to Adobe Experience Manager DAM using AssetManager API

  I have a module in my project where we upload file to DAM daily using the below piece of code

Here

is = input stream

filePath = path where you need the file to be uploaded (DAM path)

The API is here com.day.cq.dam.api.AssetManager

     But to answer you original question, once you figure out that your inputstream is proper, we need to look in DropBox API direction and understand if you are missing any dots there.