On Saturday 06 December 2014 08:00:41 Felix Meschberger wrote: > Hi Bruce
hi, > I think you are on the right track. ContentReader would probably help > solving your problem. > > Yet, for now the content loader is not extensible — by intent because we > didn’t have a need for making it extensible so far and we were not sure > about how to do it. > > This might be a good opportunity, though, to do it. > > Quickly glancing through the code, I’d think that … > > * we create a new org.apache.sling.contentloader.reader package to be > exported at version 1.0 * move the ContentCreator (@ProviderType) and > ContentReader (@ConsumerType) to that new package * convert the > BaseImportLoader into a standalone ContentReader service holder used by > the DefaultContentImporter and ContentLoaderService components. * For the > ContentReader service interface we define service registration properties > for the service to expose the file name extension (and maybe content type) > the reader supports. > > WDYT ? we have some improvement issues open [1] for content loader, I will do some experimenting in my whiteboard area including Felix ideas. Regards, O. [1] SLING-3533, SLING-3534, SLING-3535, SLING-3619 > Regards > Felix > > > Am 06.12.2014 um 06:32 schrieb Bruce Edge > > <[email protected]>: > > > > After digging around in the sling code a bit I found the ContentReader > > interface, with Json, Zip, and XML reader classes. This looks looks like > > the right option, IOW implement a new ContentReader class for my data > > type. > > > > The one remaining question is, how does this tie in with the content type > > detection on the front end? > > > > I am setting up the mimeType for this extension already: > > mimeTypeService.registerMimeType("application/vnd.adobe.folio+zip", > > "folio"); > > > > but what else do I need to do to invoke the new ContentReader once this > > mimeType is detected? > > > > I see the existing loaders are all defined in BaseImportLoader. Is there > > an API to append new extension/loader mappings to this? > > > > -Bruce > > > > From: Bruce Edge > > <[email protected]<mailto:[email protected]>> > > Reply-To: "[email protected]<mailto:[email protected]>" > > <[email protected]<mailto:[email protected]>> Date: Thursday, > > December 4, 2014 at 2:00 PM > > To: "[email protected]<mailto:[email protected]>" > > <[email protected]<mailto:[email protected]>> Subject: > > Defining new content types and associated import actions > > > > I keep finding that I’m doing things the hard way and that someone has > > already thought of this and has implemented something far better than my > > current attempt. Therefore I have to ask this question. > > > > I need to import content with a well defined structure adobe multi-folio > > archives. These are zip files consisting of an xml content descriptor, a > > mime type file and a number of child folio archives. > > > > Folio.xml > > mimetype > > 0000_Cover.folio > > 0001_article_xx.folio > > 0002_artivle_yy.folio > > … > > > > The mime type contains: > > application/vnd.adobe.folio+zip% > > > > > > where each child .folio file is a zip consisting of another folio.xml > > descriptor file and additional media files: > > ├── Folio.xml > > ├── META-INF > > │ └── pkgproperties.xml > > ├── StackResources > > │ ├── asset_L.pdf > > │ ├── asset_P.pdf > > │ ├── scrubber_L1.jpg > > │ ├── scrubber_P1.jpg > > │ ├── thumb_L1.jpg > > │ ├── thumb_P1.jpg > > │ └── toc.jpg > > └── mimetype > > > > Is it possible to define a new content type for each of these, the parent > > multi-folio and the child folio structures such that when I post using > > something like: > > > > curl -u uid:pwd -F":contentType=multifolio" -F":operation=import" > > -F":contentFile=@~/bedge/issue.multifolio<mailto:contentFile=@~/bedge/iss > > ue.multifolio>" http://localhost:8080/content/issue > > > > that the behavior would be to unpack the multifolio, then upon > > discovering the child .folio files, and recognizing the registered > > format for these, also unpack each of these? > > > > > > The gravy would be to also parse the folio.xml files and validate that > > all resources defined in the xml are indeed present, but I admit that’s > > getting greedy. > > > > -Bruce
