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<div class="moz-cite-prefix">On 01/27/2015 03:40 PM, Matthias
Wessendorf wrote:<br>
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<div class="gmail_quote">On Tue, Jan 27, 2015 at 8:43 PM,
Summers Pittman <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:supittma@redhat.com"
target="_blank">supittma@redhat.com</a>></span>
wrote:<br>
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<div>On 01/27/2015 01:32 PM, Matthias Wessendorf
wrote:<br>
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<div class="gmail_quote">On Mon, Jan 26, 2015 at
4:38 PM, Summers Pittman <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:supittma@redhat.com"
target="_blank">supittma@redhat.com</a>></span>
wrote:<br>
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Summary (From my POV on Android):<br>
<br>
Sync Server doesn't use any
authentication or ownership tracking.<br>
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</div>
<div>that's fine, for alpha.1. Can you create
a ticket to track this on AGSYNC for later
alpha releases? Or do we have already such
an issue</div>
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<br>
</span> I'll figure this out with danbev. He mentioned
better integration for J2EE flavored things is a thing
to investigate. It may be that the sync-server is
better served as a database styled thing and the app
server is responsible for role based data security.</div>
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</div>
<div>e.g. like JAX-RS extensions/adapters that can community
with the "sync-server" resource?</div>
</div>
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Basically. Something something annotations and CDI<br>
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GCM-XMPP bridge needs a lot of love<br>
We need to define a different connection
lifecycle for GCM.<br>
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<div>Similar to above, I think for initial
alpha the current connection bridge may be
OK. We have JIRAs for that ? <br>
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<br>
</span> * <a moz-do-not-send="true"
href="https://issues.jboss.org/browse/AGSYNC-28"
target="_blank">https://issues.jboss.org/browse/AGSYNC-28</a><br>
<br>
I schedule it for beta.1. Really this should be
something that should be put together at the same time
as persistent data.
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The in memory data store is problematic
because clients and servers<br>
must be stopped and started atomically<br>
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<div>Dan created this for one of the later
(alpha) releases:</div>
<div><a moz-do-not-send="true"
href="https://issues.jboss.org/browse/AGSYNC-23"
target="_blank">https://issues.jboss.org/browse/AGSYNC-23</a><br>
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We might want to show off syncing
different types of documents (i.e.<br>
a todo list in addition to Luke's hobbies)<br>
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</div>
<div>Let's make sure the epics for the demos
are covering that. Perhaps worth to open a
new thread,</div>
<div>if we really need a new demo or so for
the alpha.1</div>
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Fixing the GCM bridge is probably a
couple weeks of work to get it<br>
"solid". That will be a good
alpha.1/preview to show off.<br>
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<div>ok, but I think if the only the current
bridge makes it, it would not be the end
of the world.</div>
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So Last week I put together a demo to try
and stretch the legs of the<br>
Android Sync Client APIs.<br>
<br>
It crashes, a lot. Which is a bit to be
expected as the code hasn't<br>
really be used for, well, anything until
now. We will get to that though.<br>
<br>
Here is the alpha.1 workflow. You log in
and you see your docs. You can<br>
edit your docs or you can create new
ones. In the future I would like<br>
to add sharing and collaboration but
that's the future.</blockquote>
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<div>+1 like the idea</div>
<div><br>
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Here's a flow<br>
chart for the visual thinkers out there
(with real screen caps from the<br>
real working app)<br>
<br>
*<br>
<a moz-do-not-send="true"
href="https://docs.google.com/drawings/d/145XuutxR1yY0k81w2nIIy980itDIwxzH_gcDE3jLrvc/edit?usp=sharing"
target="_blank">https://docs.google.com/drawings/d/145XuutxR1yY0k81w2nIIy980itDIwxzH_gcDE3jLrvc/edit?usp=sharing</a></blockquote>
<div><br>
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<div>nice diagram - looks like a solid flow </div>
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<br>
To make all of this work I use a RESTful
server which tracks a user's<br>
username and the documents they "own".
The sync server just syncs and<br>
serves the document you ask for. It has
no authentication and any doc<br>
you ask for you get to be an editor on.<br>
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<div>your restful server would be the
backend, that should/clould be 'plugged'
into the sync? (in a later release)</div>
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I talked to lolquist about it yesterday. The final
evolution of this idea is the only thing in the REST
server is a secured endpoint which points you to a
document on the sync server. This means all of your
information will be hosted directly from the sync
server.</div>
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<div>ok</div>
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The client uses the GCM XMPP¹ bridge I wrote
while drunk on the side of<br>
a mountain and it shows. </blockquote>
<div><br>
</div>
<div>:-) Ok, perhaps we should get it improved
before we ship alpha.1</div>
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<br>
</span> Already on it. I have a few JIRAs and have
brainstormed a set of fixes with passos. Stay tuned.</div>
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<div>nice</div>
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The biggest issue is that shadows for<br>
documents aren't getting created right
sometimes because either 1) the<br>
client or server bounced and the data stores
are no long synced or 2)<br>
the server thinks there are more clients
than actually are connected.<br>
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</div>
<div>sounds like a bug</div>
<div> </div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">GCM-XMPP
doesn't supply connection/disconnection
information like<br>
WebSockets will. Instead we just know that
some messages we sent a<br>
while ago weren't delivered. We need to
figure out how to turn this<br>
into connection and disconnection
information in a way that lets the<br>
shadows exist correctly.<br>
</blockquote>
<div><br>
</div>
<div>the messages that are arrving via GCM
could be used to query for the version from
the sync server. Eg. via a REST API? </div>
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Another issue that needs to be addressed is
using something other than<br>
the Luke Skywalker hobbies document. (Or
maybe showing off multiple<br>
document types in the demo). I'm up for
suggestions.<br>
<br>
Anyway, the principles (diff sync with a
restful documentId broker for<br>
security) are sound. I think we can buff
out some implementation<br>
details and have a good alpha/preview/poc
release in the few weeks -> 1<br>
month time frame for Android and the sync
server.<br>
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</div>
<div>I think ideally the release would be
ready around 20th of Feb, perhaps slightly
later</div>
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</span> Sounds like we agree :)</div>
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<div>perfect :-)</div>
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--<br>
Summers Pittman<br>
>>Phone:404 941 4698<br>
>>Java is my crack.<br>
<br>
<br>
<br>
Foot Notes:<br>
1. The sync server has two client
connection technologies : WebSockets<br>
and GCM-XMPP. Android uses the GCM-XMPP
because it takes all of the<br>
nasty connection handling code and gives
let's Android deal with it.<br>
More info here : <a
moz-do-not-send="true"
href="https://developer.android.com/google/gcm/ccs.html"
target="_blank">https://developer.android.com/google/gcm/ccs.html</a><br>
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-- <br>
<div>Matthias Wessendorf <br>
<br>
blog: <a moz-do-not-send="true"
href="http://matthiaswessendorf.wordpress.com/"
target="_blank">http://matthiaswessendorf.wordpress.com/</a><br>
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<br>
<pre cols="72">--
Summers Pittman
>>Phone:404 941 4698
>>Java is my crack.
</pre>
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-- <br>
<div class="gmail_signature">Matthias Wessendorf <br>
<br>
blog: <a moz-do-not-send="true"
href="http://matthiaswessendorf.wordpress.com/"
target="_blank">http://matthiaswessendorf.wordpress.com/</a><br>
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<pre class="moz-signature" cols="72">--
Summers Pittman
>>Phone:404 941 4698
>>Java is my crack.
</pre>
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