Hola Francisco,

I'd opt for option #2 - would you be able to submit a patch?

TIA, all the best!
-Simo

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On Wed, Apr 10, 2013 at 10:03 PM, Francisco Carriedo Scher <
fcarrie...@gmail.com> wrote:

>  Hello there!
>
> Last week I was seeking for an extended funtionalities of the fileupload
> library, only to find that such functionalities are not available yet (
> http://www.mail-archive.com/user@commons.apache.org/msg08530.html). The
> two
> extended functionalities are:
>
>    - calculating the checksum (MD5, SHA1,...) on the fly as a file is
>    written to disk (just one time writing to disk and no need to have the
>    whole file in memory).
>    - allow the end user to specify the output stream where the data
>    received in the request should be dumped to.
>
> I see two possible approaches to get such functionalities:
>
>    - Exposing the iterator used in the loop at FileUploadBase.java:341
>    within the library to the user and then he can process each part of the
>    request using methods in the library (profiting the existing logic in
> the
>    library). This approach would provide the two functionalities in a row,
> as
>    the stream of the file to be saved to disk can be provided by the user,
>    i.e.: he is able to wrap it with a DigestOutputStream and with a
>    FileOutputStream pointing to the end destination of the data on the file
>    system for example.
>    - Extending the existing classes (DiskFileItemFactory, DiskFileItem) to
>    provide separately the desired functionality, with no modification in
> the
>    library.
>
> Although I understand that the second choice would ensure to profit all the
> existing correctness in the existing library I find the first one very
> flexible and would like to get some critics for this approach as i can
> imagine that there might be drawbacks I am missing.
>
> Thank you very much for your attention, keep up the good work!
>

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