--- Emmanuel Bourg <[EMAIL PROTECTED]> wrote: > That looks interesting, this kind of structure can > still be found today > in ar and cpio archives used for deb and rpm > packages. I also used this > style of file in inter bank communications a few > years ago. > > That would be awesome if the component was able to > operate on binary > files too, you would define the structure in a DSL > like language and map > it to your beans. Just dreaming :)
Actually, there's not much reason it couldn't support binary files. The method signatures are defined in terms of bytes rather than chars, and unicode is supported in the DSL's string literals (I'm aware that the DSL stuff badly needs i18n support). It's possible that "Flatfile" doesn't capture the potential as well as some other name might. :| > > Do you plan to implement push/pull parsing (maybe it > already does). My understanding of the push/pull terminology is limited to the context of XML. I have a hard time resolving those to what the Flatfile library does, but basically: you have an Entity instance. You tell it to read itself from an InputStream. When that synchronous call returns you have a populated Entity. Currently, then, the read operations only work for fully-specified, non-dynamic field definitions. I definitely want to explore strategies for improving this functionality; the InputFilteringDynamicField class is something I began to write for the purposes of trying out a lookahead strategy. I didn't go too far with that because once it was certain that I would be allowed to attempt ASF incubation, i kind of wanted to save some work for that process. ;) > > Are there any similar open source projects ? I think Hen mentioned something he had that did a small part of this. Spring-Batch came out fairly recently and irritated me, because it does a little of this in its bigger picture, but it's quite difficult to compare the two IMHO. The Spring-Batch stuff looks like a slightly more polished version of the same stuff I've seen in different shops for years--with an OSS license stuck on. I think the DSL and nested structures are a big win for the Flatfile code, but I would say that. Thanks for looking, Matt > > Emmanuel Bourg > > > Matt Benson a écrit : > > At long last, I have prepared the preliminary > > proposal. I'd like to have the support of Commons > as > > the sponsoring PMC. I'd also like it if I could > get a > > couple of mentors from the group as well. The > current > > proposal can be viewed at: > > > http://people.apache.org/~mbenson/flatfile-proposal/proposal > > > > If you have any interest in this being a Commons > > component, or if you are a PMC member and feel you > > would veto Commons' sponsorship of this podling, > > please say so. Assuming the initial reaction is > > positive, I will then call a vote to make the > > sponsorship official and move the proposal to the > > Incubator wiki where I hope volunteering mentors > will > > add themselves. :) > > > > Thanks, > > Matt > > --------------------------------------------------------------------- > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > > --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
