Re: File upload without writing to temp file (on Google App Engine)
Done, I've just implement my idea. I change the some implementation, actually the main problem is on DiskFileItem, but I need to change several classes too. No more writing file to disk, but write as Entity, big file chunk into several entities. Original FileCleaner will launch daemon thread, but I use simple loop to clean up the unreachable PhantomReference on every request. Regards, uudashr 2009/7/10 uud ashr uuda...@gmail.com I've been thinking to change the implementation.No more write to temp file, but write to datastore. We can use this as standard way to store file on google app engine. I wonder, is there anyone who create something like this? Regards, uudashr On Mon, Jun 22, 2009 at 4:07 PM, Dolejs Vlastimil ster...@atlas.czwrote: Hi, I know, how to store data, but I dont know, how to upload it without writing to file and spawning new threads.. - Od: Adrian Merrall Přijato: 21.6.2009 9:35:25 Předmět: Re: File upload without writing to temp file (on Google App Engine) On Sun, Jun 21, 2009 at 7:18 AM, Joe Fawzy joewic...@gmail.com wrote: Hi split it into small chunks and store each as a blob in datastore entity Joe On Sat, Jun 20, 2009 at 1:44 PM, Dolejs Vlastimil ster...@atlas.cz wrote: Hi, I´m trying write wicket application for Google App Engine. App Engine has some restrictions, one of them is, that you can´t work with filesystem. I´m trying upload images with FileUploadField, but i get AccessControlException. Looking through source code i found there is DiskFileItemFactory, which puts large files (over 10kB) to temp files. Is there any way to redirect all data storing to memory? I also found, if I upload small file (smaller than 10kB) - DiskFileItemFactory store it in memory, but there is some FileCleaner class which cleans temp files and spawns new Thread (which is also restricted in App Engine). So it fails again on AccessControlException. Have you anybody solved problems with file uploads on App Engine? Thanks
Re: File upload without writing to temp file (on Google App Engine)
I've been thinking to change the implementation.No more write to temp file, but write to datastore. We can use this as standard way to store file on google app engine. I wonder, is there anyone who create something like this? Regards, uudashr On Mon, Jun 22, 2009 at 4:07 PM, Dolejs Vlastimil ster...@atlas.cz wrote: Hi, I know, how to store data, but I dont know, how to upload it without writing to file and spawning new threads.. - Od: Adrian Merrall Přijato: 21.6.2009 9:35:25 Předmět: Re: File upload without writing to temp file (on Google App Engine) On Sun, Jun 21, 2009 at 7:18 AM, Joe Fawzy joewic...@gmail.com wrote: Hi split it into small chunks and store each as a blob in datastore entity Joe On Sat, Jun 20, 2009 at 1:44 PM, Dolejs Vlastimil ster...@atlas.cz wrote: Hi, I´m trying write wicket application for Google App Engine. App Engine has some restrictions, one of them is, that you can´t work with filesystem. I´m trying upload images with FileUploadField, but i get AccessControlException. Looking through source code i found there is DiskFileItemFactory, which puts large files (over 10kB) to temp files. Is there any way to redirect all data storing to memory? I also found, if I upload small file (smaller than 10kB) - DiskFileItemFactory store it in memory, but there is some FileCleaner class which cleans temp files and spawns new Thread (which is also restricted in App Engine). So it fails again on AccessControlException. Have you anybody solved problems with file uploads on App Engine? Thanks
Re: File upload without writing to temp file (on Google App Engine)
Hi, I know, how to store data, but I dont know, how to upload it without writing to file and spawning new threads.. - Od: Adrian Merrall Přijato: 21.6.2009 9:35:25 Předmět: Re: File upload without writing to temp file (on Google App Engine) On Sun, Jun 21, 2009 at 7:18 AM, Joe Fawzy joewic...@gmail.com wrote: Hi split it into small chunks and store each as a blob in datastore entity Joe On Sat, Jun 20, 2009 at 1:44 PM, Dolejs Vlastimil ster...@atlas.cz wrote: Hi, I´m trying write wicket application for Google App Engine. App Engine has some restrictions, one of them is, that you can´t work with filesystem. I´m trying upload images with FileUploadField, but i get AccessControlException. Looking through source code i found there is DiskFileItemFactory, which puts large files (over 10kB) to temp files. Is there any way to redirect all data storing to memory? I also found, if I upload small file (smaller than 10kB) - DiskFileItemFactory store it in memory, but there is some FileCleaner class which cleans temp files and spawns new Thread (which is also restricted in App Engine). So it fails again on AccessControlException. Have you anybody solved problems with file uploads on App Engine? Thanks
Re: File upload without writing to temp file (on Google App Engine)
On Sun, Jun 21, 2009 at 7:18 AM, Joe Fawzy joewic...@gmail.com wrote: Hi split it into small chunks and store each as a blob in datastore entity Joe On Sat, Jun 20, 2009 at 1:44 PM, Dolejs Vlastimil ster...@atlas.cz wrote: Hi, I´m trying write wicket application for Google App Engine. App Engine has some restrictions, one of them is, that you can´t work with filesystem. I´m trying upload images with FileUploadField, but i get AccessControlException. Looking through source code i found there is DiskFileItemFactory, which puts large files (over 10kB) to temp files. Is there any way to redirect all data storing to memory? I also found, if I upload small file (smaller than 10kB) - DiskFileItemFactory store it in memory, but there is some FileCleaner class which cleans temp files and spawns new Thread (which is also restricted in App Engine). So it fails again on AccessControlException. Have you anybody solved problems with file uploads on App Engine? Thanks
File upload without writing to temp file (on Google App Engine)
Hi, I´m trying write wicket application for Google App Engine. App Engine has some restrictions, one of them is, that you can´t work with filesystem. I´m trying upload images with FileUploadField, but i get AccessControlException. Looking through source code i found there is DiskFileItemFactory, which puts large files (over 10kB) to temp files. Is there any way to redirect all data storing to memory? I also found, if I upload small file (smaller than 10kB) - DiskFileItemFactory store it in memory, but there is some FileCleaner class which cleans temp files and spawns new Thread (which is also restricted in App Engine). So it fails again on AccessControlException. Have you anybody solved problems with file uploads on App Engine? Thanks
Re: File upload without writing to temp file (on Google App Engine)
Hi split it into small chunks and store each as a blob in datastore entity Joe On Sat, Jun 20, 2009 at 1:44 PM, Dolejs Vlastimil ster...@atlas.cz wrote: Hi, I´m trying write wicket application for Google App Engine. App Engine has some restrictions, one of them is, that you can´t work with filesystem. I´m trying upload images with FileUploadField, but i get AccessControlException. Looking through source code i found there is DiskFileItemFactory, which puts large files (over 10kB) to temp files. Is there any way to redirect all data storing to memory? I also found, if I upload small file (smaller than 10kB) - DiskFileItemFactory store it in memory, but there is some FileCleaner class which cleans temp files and spawns new Thread (which is also restricted in App Engine). So it fails again on AccessControlException. Have you anybody solved problems with file uploads on App Engine? Thanks
