On 07/11/2010 11:17 AM, Roope wrote: > Hi > > I'm currently developing some bioinformatics tools and I want to make > them as web apps. > > The thing is that user needs to input files that might be up to 4Gb > but usually the biggest is just about 250Mb. > > There are two main use-cases: > 1. Steaming the file and taking just some small parts of it to string > 2. Reading the whole file and making object from each line in file > > I would like to do all the file processing in client side, but I > understood that it is not yet possible using gwt?
In general the answer is yes, but not because of GWT. Until wide-spread browser support of HTML 5 which will provide better local file handling. > If I keep the server local it is feasible to upload some 250mb files > and process them at the server side, but I have no success so far in > this, even with 10mb file. You might provide some background on the "... no success so far..." path. For files of this size, I'd consider creating a file share on the server or using FTP. I'm guessing the data collection occurs on the PC? If so, you won't be able to process the files locally until HTML 5 and local file support. Depending on your environment, you might be able to remote-mount a disk device and write directly to that device from the data collection source. > So what would you suggest me to do? Besides dumping the web > application idea and making some java applet. You want to move the data to the server, construct a server app that retrieves data slices on demand and sends them to the client for rendering. You can certainly do the Java app on the server to retrieve/preprocess the data, then render it on the client using various graphing packages. Search this list for pointers to SVG, or graphing libraries. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
