Custom POST servlet example

[Bruce Edge <br...@nextissuemedia.com>]

Slowly working my way through all of the docs & advice. Thanks for all info so far. This is very helpful.

...The real reason for this is we have a lot of media files that need to be stored in a
hierarchy and referenced by the above POJOs. One of the initial tasks is to create an
import mechanism that unpacks a zip and extracts it into the JCR at a particular node path.
What's the accepted convention for ingesting bulk data?...

You might create a custom POST servlet that gets the zip stream,
unpacks it (ideally streaming) and creates the corresponding nodes. Or
if it's relatively small zips, copy them in an "incoming" folder in
the repository via WebDAV or PUT requests and use observation to
detect and process them. Which is the two options that you suggested
;-)

Any pointers to samples for POST servlets that push data into the JCR?

Or, an osgi module that populates the JCR, even with dummy data?

I'm better at cargo-culting than I am at starting from scratch.

-Bruce

Re: Custom POST servlet example

[Robert Munteanu <ro...@apache.org>]

On Wed, Nov 12, 2014 at 6:43 PM, Bruce Edge
<br...@nextissuemedia.com> wrote:
> Slowly working my way through all of the docs & advice. Thanks for all info so far. This is very helpful.
>
> ...The real reason for this is we have a lot of media files that need to be stored in a
> hierarchy and referenced by the above POJOs. One of the initial tasks is to create an
> import mechanism that unpacks a zip and extracts it into the JCR at a particular node path.
> What's the accepted convention for ingesting bulk data?...
>
> You might create a custom POST servlet that gets the zip stream,
> unpacks it (ideally streaming) and creates the corresponding nodes. Or
> if it's relatively small zips, copy them in an "incoming" folder in
> the repository via WebDAV or PUT requests and use observation to
> detect and process them. Which is the two options that you suggested
> ;-)
>
> Any pointers to samples for POST servlets that push data into the JCR?
>
> Or, an osgi module that populates the JCR, even with dummy data?

If you're using Maven, you can use the sling-servlet-archetype [1] to
generate a simple bundle which exposes an OSGi component.

Then change that component by

- annotating it with @SlingServlet instead of @Component/@Service
- making it extend SlingServlet and overriding doPost
- getting a (javax.jcr) Session :
request.getResourceResolver().adaptTo(Session.class)

After that you're all set to start writing into the repository using
the current user's privileges.

Robert



[1]: http://search.maven.org/#search|ga|1|a%3A%22sling-servlet-archetype%22

>
> I'm better at cargo-culting than I am at starting from scratch.
>
> -Bruce