Re: code design guideline question

[Cyrille Giquello <cyrille at ktaland.com>]

Cyrille Giquello a écrit :

> Marcel Ruff a écrit :
>
> > Cyrille Giquello wrote:
> > > Hi Marcel,
> > > and other if there some ;o)
> > >
> > > I would like a code design guideline.
> > >
> > > How to make change that xmlBlaster.engine.ClientInfo can call a method of
> > > xmlBlaster.engine.RequestBroker ?
> > > I didn't find any clean idea.
> > >
> > > What's for ?
> > > hehe ... ;o)
> > > It's for my very old need : erasing PTP Persistent message.
> > > So I need to tell to the RequestBroker.persistenceDriver that it can erase a message Id.
> > > At next server restart the message will not be loaded again.
> >
> > I just used your TestPersistence2 testcase.
> > It seems that the
> >
> >     strArr = senderConnection.erase(xmlKey, qos)
> >
> > porperly erases the persistent message.
> >
> >     $HOME/tmp/HelloDurable-XmlKey.xml
> >
> > disappears after erase() as expected.
> >
> > What is different in your case?

To see the problem you can make a little modification in
    testsuite.org.xmlBlaster.TestPtDQueue.java
in public void testPtUnknownDestination()

         // Construct a message and send it to "Martin Unknown"
         String xmlKey = "<key oid='' contentMime='text/plain'>\n" +
                         "</key>";

         String qos = "<qos>" +
 +" <isDurable /> "    // <-- add just this flag
                      +"   <destination queryType='EXACT'>" +
                              receiverName +
                      "      <ForceQueuing />" +
                      "   </destination>" +
                      "</qos>";


Cyrille


>
>
> It's just for PTP messages.
> There is no stuff to call to erase PTP / Persistents messages.
>
> If you send a PTP message with a Durable property,
> you'll get all the time the message at each server restart...
>
> look at that scenario :
>
> 1/ RequestBroker.loadPersistentMessages()
>     do a publish() of messages found in persistence folder.
>
> 2/ RequestBroker.publish()
>     ...
>     if (publishQoS.isPubSubStyle()) {
>         ...
>         messageContainerMap.put();
>         ...
>     }else if (publishQoS.isPTP_Style()) {
>         ...
>         destinationClient.sendUpdate();    // <-- Go there
>         ...
>     }
>     ...
> }
>
> 3/ ClientInfo.sendUpdate()
>     ... client not logged ...
>     queueMessage(msgUnitWrapper, destination);
>
> 4/ ClientInfo.notifyAboutLogin() {
>     ...
>     if (messageQueue != null) {
>         ...
>         while (true) {
>             MessageUnitWrapper msgUnitWrapper = messageQueue.pull();
>         ...
>
> My need is to find a place to notify the PersistenceDriver that message has to be erased ...
>
> I hope to been clear enough ??
>
> Cyrille
>
> >
> >
> > Marcel
> >
> > >
> > > Thanks for comment & idea.
> > >
> > >
> > > --
> > >  Cyrille / Ktaland
> > >
> > > -----------------------------------------
> > > -      http://www.ktaland.com/
> > > - Pour votre MAC: http://TOUSOFT.COM/
> > > -----------------------------------------
> > >
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> > > NSA
> > >
> > >
> > >
> > >
> >
> > --
> > Marcel Ruff
> > mailto:ruff at swand.lake.de
> > http://www.lake.de/home/lake/swand/
> > http://www.xmlBlaster.org