I'm using Rackspace Cloud Files (Openstack Swift) in Java application, and have the following scenario: I upload files to a container (from web app, through my java rest backend) to a temporary location in rackspace container, and than, when some event happens (user confirms form saving), I need to move those files to a persistent location in that (the same) container.
I need those files to be downloaded then from my web app, so when uploading a file I specify header:
Content-Disposition=attachment;filename=thefilename.xxx
Also I specify header for files in my temporal storage X-Delete-At, so they could de automatically deleted if user doesn't save the form.
For copying file I use method from ObjectApi:
boolean copy(String destinationObject, String sourceContainer, String sourceObject)
It copies file content, file metadata, but doesn't copy Content-Disposition. It seems that there is no way to set it after copying.
The problem is that Cloud Files REST API allows to specify Content-Disposition header for copied target file, but Java API doesn't. I wonder if there a way to extend that API or call that service with required header somehow alternatively.
What helped me to solve the problem, is to upgrade jcouds libraries to v. 2.0.3.
In this version ObjectApi contains parameterized copy() methods allowing to specify another headers for a copied file (sending X-Fresh-Metadata header).
This is how I specify Content-Disposition header, and avoid copying X-Delete-At header:
Map<String, String> contentMetadata = new HashMap<>();
contentMetadata.put("Content-Type", "image/jpeg");
contentMetadata.put("Content-Disposition", "attachment; filename=\"myfilename.jpg\"");
objectApi.copy(toPath, containerName, fromPath, new HashMap<>(), contentMetadata, CopyOptions.NONE);