Reputation: 36008
I am trying to write a workflow process step
for the DAM update asset
such that the uploaded asset will be sent to an external service that will modify the asset and then the modified asset can be sent to the Metadata extraction
step. So I've added my process step to the DAM update asset like this:
And my code looks like this so far:
public void execute(WorkItem item, WorkflowSession wfsession,MetaDataMap args) throws WorkflowException {
try
{
log.info("Here2 in execute method"); //ensure that the execute method is invoked
final Map<String, Object> map = new HashMap<String, Object>();
map.put( "user.jcr.session", wfsession.getSession());
ResourceResolver rr = resolverFactory.getResourceResolver(map);
String path = item.getWorkflowData().getPayload().toString();
log.info("Here2 path: " + path);
Resource resource = rr.getResource(path);
log.info("Here2 resource: " + resource);
InputStream is = resource.adaptTo(InputStream.class);
log.info("Here2 assets IS: " + is);
}
catch (Exception e)
{
log.info("Here Error");
e.printStackTrace();
}
}
This is what I see in the logs when I upload an asset:
Here2 in execute method Here2 path: /content/dam/photo1.JPG/jcr:content/renditions/original Here2 asset: null
Question
Upvotes: 1
Views: 1921
Reputation: 9304
In order to access your external service via HTTP, you have to write a client. CQ provides commons-httpclient
bundle and you may use it to access the service. Documentation for the library can be found here. I don't know if the service expects that the file will be send using PUT or POST, but httpclient provides all these methods. All you have to do is to provide appropriate InputStream
. Adapt your resource to Rendition
and use getStream()
method to get the InputStream
.
When you'll get the modified asset from the webservice, you need to replace the original one:
// rendition = ...; // original rendition object created as above
// newInputStream = ...; // new asset received from your webservice
Asset asset = rendition.getAsset();
asset.addRendition("original", newInputStream, rendition.getMimeType());
Upvotes: 2