Sorry, GWT doesn't provide any particular magic over javascript, which due to its architecture to avoid security risks cannot access client files except by sending them to the server with the user's consent. You could run a separate server to process these, try a flash solution, or presumably upgrade GAE service to get around the quotas.
On Jun 2, 11:29 am, Ken <[email protected]> wrote: > I'm looking at a problem that I think I might be able to solve using > GWT. We're considering using GWT for the client of our application > for other reasons, but I think it might also solve this issue. > > We're developing a Google App Engine application that processes data > uploaded to it. As you may know GAE has quota for various things, > including total connection time. In our case we're running into > another quota regarding database access. If our uploaded file is > longer than 8500 lines, we exceed our quota and get an exception. > > We can envision upload files much larger than this that need to be > processed by our customer. So what we need to do is process the file > before it is uploaded and then uploaded it to our application in > chunks, say 5000 lines at a time. > > Can GWT help us here? Basically when someone selects a file with > 1,000,000 lines in it to upload we would like to pre-process it and > change it to 200 GWT RPC calls, instead of a standard file upload. In > addition, we would like to provide a progress bar, of course. > > Thank you. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
