tree 712d60a74dc689215fb6ab8cf8b09d2a2e13fc2a
parent 3ca432b02149cb3e5c7bf78b5858290d2582e8f8
author Ralf Sternberg <rsternberg@eclipsesource.com> 1394542620 +0100
committer Ralf Sternberg <rsternberg@eclipsesource.com> 1394542787 +0100

Use Apache Fileupload streaming API

The Apache Commons Fileupload library offers two different APIs, a
traditional one that stores uploads in temp files before making them
available, and a streaming API that provides direct access to the
upload stream.

The streaming API has many benefits for this add-on:
* it fits better with the concept of a receiver that handles uploaded
  contents
* it makes this add-on independent from the filesystem
* it does not require cleaning up temporary files, we can get rid of
  the CleaningTracker
* it's faster because we don't need to copy streams twice

As a side effect of this change, it's not directly possible to support
the method FileDetails.getContentLength() anymore. However, returning
-1 for "unknown" is in conformance with the contract of this method.