Hi, > Jesse Long <[email protected]> hat am 3. Juni 2015 um 13:20 geschrieben: > > > On 03/06/2015 12:46, Andreas Lehmkühler wrote: > > Hi, > > > >> Jesse Long <[email protected]> hat am 3. Juni 2015 um 08:45 > >> geschrieben: > >> > >> > >> On 02/06/2015 17:48, Andreas Lehmkuehler wrote: > >>> Hi, > >>> > >>> Am 02.06.2015 um 16:15 schrieb Jesse Long: > >>>> Hi All, > >>>> > >>>> Regarding PDFBOX-2301, and the use of scratch files: right now, each > >>>> COSStream > >>>> uses one or two scratch files. > >>>> > >>>> I recently ran into the problem on Linux where the max number of open > >>>> files > >>>> allowed to the JVM by the OS was reached because of this. > >>>> > >>>> Is there a plan around this? > >>>> > >>>> Is it maybe that my use case is not expected? > >>> I'm aware of that. The refactoring is still in progress. I expect to > >>> reduce the number of open files. > >>> > >>>> My use case is: > >>>> Open PDDocument 1 > >>>> Open PDDocument 2 > >>>> for a few hundred times > >>>> import page 1 of PDDocument 1 into PDDocument 2 and overlay > >>>> some stuff > >>>> ontop. > >>>> save PDDocument 2. > >>>> > >>>> I have written a patch to use one single java.io.RandomAccessFile as > >>>> a scratch > >>>> file per COSDocument, using pages in a doubly linked list to separate > >>>> streams in > >>>> the same file. Would you be interested in adding this to PDFBox? > >>> To use one file only led to problems when creating pdfs from scratch. > >>> It is possible to write to 2 COSStreams at the same time which > >>> corrupts pdf. > >> Hi Andreas, > >> > >> Do you mean at the same time, as in multiple threads, or single thread > >> writing a bit to this stream and then a bit to another stream back and > >> forth? > > It's about the second case. You can't add fonts and/or images to a page > > while > > adding content to a contentstream the same time. You have to add those > > before > > opening a stream or you have to close the stream before > > > >> For the single thread use case, I have solved this in my patch. > >> Actually, even multiple thread should be easy to support with > >> synchronization. I'll work on some docs and submit and you can see if > >> you like it. > > At least it sounds interesting and I'm happy to look at it. > > > > Please see patch attached. I've attached your patch to PDFBOX-2301 so that it can't get lost.
> > Thanks, > Jesse BR Andreas --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
