[ome-devel] batch image export

[William Moore]

Hi Yanling,

 Yes, the Batch Image Export zip is permanently attached to the dataset until someone deletes it.
This functionality was developed as a script (same script can be run in both clients) but 
unfortunately we don't have a nice way for the export script to pass the zip back to the client
once it's finished. So attaching it is the only option.

The main limitation we have with downloading a whole Project or Dataset at a time is that
this could easily exceed a practical size of data to download.
Particularly in the web, where all the data for a single download needs to be collated into
a single directory, zipped up and downloaded in one shot.
The size of this zip, and the time it takes to generate the zip need to be compatible with http requests.
E.g. the web server (apache etc) will usually time-out after 1 or 2 minutes, and will struggle
to download multi-gigabyte files.

I guess we could add the option to download a Dataset at a time, and provide good indication
to the user of the size of the download before-hand, so they could reconsider if it looks too big?

  Regards,

   Will.



On 3 Sep 2014, at 21:17, Yanling Liu <vrnova at gmail.com> wrote:

> My mistake, what I mean "the mouse right click" is not right click, it should be selecting images and then click the down arrow at the right side to download images.
> 
> It would be great to be able to select one project or data set and click the down arrow at the right side to download.
> 
> Thanks,
> Yanling
> 
> 
> 
> On Wed, Sep 3, 2014 at 4:08 PM, Yanling Liu <vrnova at gmail.com> wrote:
> Dear OME developers,
> 
> After running batch exporting script, the zipped images is linked as attachment to the dataset being exported. My question is how long will this attachment live in the system? If user forget to delete the zip file after downloading, will it be kept in the system forever? If so then potentially people can generate lots of zip packages and waiting storage space.
> 
> The mouse right click and download feature is a much better solution. However, for now only images can take advantages of this solution, will it be extended to dataset and project so user can mouse right click on one dataset to download as original files?
> 
> Thanks,
> Yanling
> 
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