push namespaces to sesame

[zuotian]

Hi,

I am using surf to write to a remote sesame store. Everything works as
expected (almost, at least), but none of the namespaces registered in
surf.ns is pushed to the remote store. As a result, when exporting
triples from the sesame store, no prefixes are defined. Is there an
API to write namespaces registered locally to the store?

Thanks,
Zuotian

[Cosmin Basca]

Hi Zuotian

There is an api to manage the namespaces for Sesame2 http compliant
connections. The caveat is the following: since it's not a standard
api (that other plugins support) it's not exposed in the normal store
api. However using "duck typing" you can safely get access to it like
this: (haven't tested the code myself, but should work)

# assume store is your remote sesame store
if hasattr(store.writer, "get_allegro"):
sesame_connection = store.write.get_allegro()
sesame_connection.add_namespace(...)
sesame_connection.remove_namespace(...)

# the sesame_connection object exposes the low-level sesame2 protocol
nicely wrapped up, see more here:
http://code.google.com/p/surfrdf/source/browse/trunk/plugins/surf.sesame2/sesame2/sesame2.py

Hope this helps,

Cheers,
Cosmin

[zuotian]

Thanks for the quick reply. Yes it works. Except one minor typo.

store.write.get_allegro() => should be store.writer.get_allegro()

Cheers,
Zuotian

On Feb 24, 1:07 pm, Cosmin Basca <cosmin.ba...@gmail.com> wrote:
> Hi Zuotian
>
> There is an api to manage the namespaces for Sesame2 http compliant
> connections. The caveat is the following: since it's not a standard
> api (that other plugins support) it's not exposed in the normal store
> api. However using "duck typing" you can safely get access to it like
> this: (haven't tested the code myself, but should work)
>
> # assume store is your remote sesame store
> if hasattr(store.writer, "get_allegro"):
>     sesame_connection = store.write.get_allegro()
>     sesame_connection.add_namespace(...)
>     sesame_connection.remove_namespace(...)
>
> # the sesame_connection object exposes the low-level sesame2 protocol

> nicely wrapped up, see more here:http://code.google.com/p/surfrdf/source/browse/trunk/plugins/surf.ses...