Re: [Opensync-devel] SyncML plugin

[Emanoil K. <del...@ya...>]

Thank you for your statement and for taking your time to put forward your standpoint.

> 
> the SyncML plugin heavily depends on libsyncml. So I think
> a rewrite and
> the use of a different library would be a possible way. The
> problem is
> that libsynthesis does not provide OBEX support.

I read recently Nokia documentation that stated that not all OBEX features are supported by their implementation, so probably this is not an issue and perhaps it is better to get away from OBEX.

> 
> I did stop my work because I cannot work on the plugin
> during my work
> time and I have some general concerns on the design of
> SyncML and OpenSync.
> 
> SyncML merging will always be a problem. If a device is out
> of sync and
> there are changed items on both sides there is always the
> risk of
> duplicated entries. I can just note here that this
> behaviour is just
> unacceptable for customers with many contacts and events.
> This leads to
> our (university's) decision for Active Sync.
> 
> OpenSync introduces an additional problem for us. It syncs
> all devices
> at once and requires a slow sync if there was a problem
> with just one
> device. The following slow sync with an enabled merger can
> create a
> complexity which is simply too high. Just calculate the
> effort for a
> general merger and 5 devices with 100 items each.
> 
> So I personally prefer peer-to-peer and clear unique
> identifier designs
> for synchronization.
> 
> I hope somebody else has enough motivation to take over the
> maintenance.
> If you want to take over then you can expect that I am
> willing to help
> with informations.
> 

I can just tell that these are complex decisions and I'm wondering who's going to take them.

If I'm understanding you right you suggest that because of the slow sync it is better to sync in pairs separately the desired types. In fact this was the safe part of my testing.
Contats - Contacts
Calendar - Calendar
etc

About the syncml plugin it might be easier to write a libsynthesis based plugin from scratch.

But in the current situation I have just a minor problem with an entity not being accepted by the parser as I documented in the bug.
It might be easier to fix this one instead of discussing and doing some unnecessary work.

Very sad, that you don't have the time and the motivation to work on it, but you have my complete understanding about it.

It would be nice if you can organize a hand over in some form - upload to svn or whatever

Thanks for the work so far

Some questions:

 If I have write access to svn, can I update syncml code or do I need extra permitions for it?

 Is there a way to emulate connected phone, because it is cumbersome when testing.

 Documentation - also links and docs that you've used?

regards