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From "Steve Loughran" <stev...@iseran.com>
Subject Re: HashMap/Hashtable, nil/null and timing.
Date Thu, 27 Jun 2002 17:19:32 GMT

----- Original Message -----
From: <costinm@covalent.net>
To: <axis-dev@xml.apache.org>
Sent: Thursday, June 27, 2002 9:46 AM
Subject: Re: HashMap/Hashtable, nil/null and timing.


> Hello ?
>
> Anyone interested in interoperability or migration from ApacheSOAP ?

yeah, I guess we should interop with our old systems.

>
> Costin
>
> On Wed, 26 Jun 2002 costinm@covalent.net wrote:
>
> > I have 3 problems.
> >
> > First, I noticed that apache-soap is sometimes using 'null' while
> > axis is using 'nil'. I have no idea why this happens - but it
> > affects the interoperability ( i.e. can't make calls from apache-soap
> > to axis ). I have a simple patch that would accept null - let me know
> > if I can send it.

yes, post the patch...I dont know what the rules are about committing
something that will cause axis to diverge from the soap spec though. I know
sam likes being forgiving on the inputs, I am more for absolute strict
adherence to well defined specs at both ends.

> >
> > Second problem: it seems apache-soap uses Hashtable while Axis
> > is using HashMap ( for soap map ). That creates pretty serious
> > problems in migrating from a-soap to axis, as all the code will
> > have to be changed. There are 3 (possible) solutions I found:
> >
> > - change the bean introspector to see if the attribute is Hashtable
> > I couldn't understand the code, so I can't do that.
> >
> > - add some HastableSerializer/Deserializer, duplicating the MapS/D
> > code, then some configuration ( is it possible to replace the
> > encoders for standard types ? )
> >
> > - use a system property ( or setting ) in MapS/D in one line,
> > the one creating a HashMap. Since Hashtable implements Map, there
> > is no other change needed. That's what I did to get my code working,
> > and I can provide a patch using System property ( if someone who
> > understand the axis config could implement this - it would be great ).

I havent looked at any of that code and woudl be out of my depth. Something
to discuss tho'. What do others think should be done?

>
> > Finally, I would like to add few lines of code and a Log to
> > display the time - how much does it take to do Call.invoke(),
> > the time spend in doPost() and few other important counters.
> > This will be controled by a special Log channel, and do nothing
> > if the time log is not set to debug.
> > Again, I can provide a patch if you want it.

This would be good. Some of my past services returned exec time as one of
the fields in a response; lets the caller monitor everything for load
testing and makes it easy to split network delays from computation.


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