def _enqueue_upload_start_task(self, chunksize, num_uploads, filename):
upload_context = tasks.MultipartUploadContext(
expected_parts=num_uploads)
create_multipart_upload_task = tasks.CreateMultipartUploadTask(
session=self.session, filename=filename,
parameters=self.params,
result_queue=self.result_queue, upload_context=upload_context)
self.executor.submit(create_multipart_upload_task)
return upload_context
def _enqueue_multipart_upload_tasks(self,
filename,
remove_local_file=False):
# First we need to create a CreateMultipartUpload task,
# then create UploadTask objects for each of the parts.
# And finally enqueue a CompleteMultipartUploadTask.
chunksize = find_chunksize(filename.size, self.chunksize)
num_uploads = int(math.ceil(filename.size / float(chunksize)))
upload_context = tasks.MultipartUploadContext(
expected_parts=num_uploads)
create_multipart_upload_task = tasks.CreateMultipartUploadTask(
session=self.session,
filename=filename,
parameters=self.params,
result_queue=self.result_queue,
upload_context=upload_context)
self.executer.submit(create_multipart_upload_task)
for i in range(1, (num_uploads + 1)):
task = tasks.UploadPartTask(part_number=i,
chunk_size=chunksize,
result_queue=self.result_queue,
upload_context=upload_context,
filename=filename)
self.executer.submit(task)
complete_multipart_upload_task = tasks.CompleteMultipartUploadTask(
session=self.session,
filename=filename,
parameters=self.params,
result_queue=self.result_queue,
upload_context=upload_context)
self.executer.submit(complete_multipart_upload_task)
self._multipart_uploads.append((upload_context, filename))
if remove_local_file:
remove_task = tasks.RemoveFileTask(local_filename=filename.src,
upload_context=upload_context)
self.executer.submit(remove_task)
return num_uploads