EDP does not accept Swift container as collection of job binaries

We have code which accepts Swift container as a storage of job binaries, here:
https://github.com/openstack/sahara/blob/93b79027acd659bf007cdd7f5f79785c0c86adf3/sahara/service/edp/binary_retrievers/internal_swift.py#L54

It is expected that we will take all the files inside container as job binaries. But the code does not work. The following exception occurs at a later stage:

2014-04-11 13:33:39.680 61774 TRACE sahara.context Traceback (most recent call last):
2014-04-11 13:33:39.680 61774 TRACE sahara.context File "/Users/dmitryme/projects/elastic-hadoop/sahara/sahara/context.py", line 124, in _wrapper
2014-04-11 13:33:39.680 61774 TRACE sahara.context func(*args, **kwargs)
2014-04-11 13:33:39.680 61774 TRACE sahara.context File "/Users/dmitryme/projects/elastic-hadoop/sahara/sahara/service/edp/job_manager.py", line 144, in run_job
2014-04-11 13:33:39.680 61774 TRACE sahara.context upload_job_files(oozie_server, wf_dir, job, hdfs_user)
2014-04-11 13:33:39.680 61774 TRACE sahara.context File "/Users/dmitryme/projects/elastic-hadoop/sahara/sahara/service/edp/job_manager.py", line 194, in upload_job_files
2014-04-11 13:33:39.680 61774 TRACE sahara.context hdfs_user)
2014-04-11 13:33:39.680 61774 TRACE sahara.context File "/Users/dmitryme/projects/elastic-hadoop/sahara/sahara/service/edp/hdfs_helper.py", line 30, in put_file_to_hdfs
2014-04-11 13:33:39.680 61774 TRACE sahara.context r.write_file_to('/tmp/%s' % file_name, file)
2014-04-11 13:33:39.680 61774 TRACE sahara.context File "/Users/dmitryme/projects/elastic-hadoop/sahara/sahara/utils/ssh_remote.py", line 371, in write_file_to
2014-04-11 13:33:39.680 61774 TRACE sahara.context self._run_s(_write_file_to, timeout, remote_file, data, run_as_root)
2014-04-11 13:33:39.680 61774 TRACE sahara.context File "/Users/dmitryme/projects/elastic-hadoop/sahara/sahara/utils/ssh_remote.py", line 428, in _run_s
2014-04-11 13:33:39.680 61774 TRACE sahara.context return self._run_with_log(func, timeout, *args, **kwargs)
2014-04-11 13:33:39.680 61774 TRACE sahara.context File "/Users/dmitryme/projects/elastic-hadoop/sahara/sahara/utils/ssh_remote.py", line 334, in _run_with_log
2014-04-11 13:33:39.680 61774 TRACE sahara.context return self._run(func, *args, **kwargs)
2014-04-11 13:33:39.680 61774 TRACE sahara.context File "/Users/dmitryme/projects/elastic-hadoop/sahara/sahara/utils/ssh_remote.py", line 425, in _run
2014-04-11 13:33:39.680 61774 TRACE sahara.context return procutils.run_in_subprocess(self.proc, func, args, kwargs)
2014-04-11 13:33:39.680 61774 TRACE sahara.context File "/Users/dmitryme/projects/elastic-hadoop/sahara/sahara/utils/procutils.py", line 52, in run_in_subprocess
2014-04-11 13:33:39.680 61774 TRACE sahara.context raise SubprocessException(result['exception'])
2014-04-11 13:33:39.680 61774 TRACE sahara.context SubprocessException: TypeError: Expected unicode or bytes, got {'edp-lib.jar': '<binary data here>'}

I think we should consider enhancing getting binaries from container to allow getting all binaries with some prefix.