Rahkonen Jukka wrote:

Hi,

> >> The service provider is much bigger authority than I. They say this way 
> >> gives
> >> them a possibility to separate the requests on different servers for 
> >> sharing
> >> the load in the future. I don't believe really that sending 
> >> GetCapabilities is
> >> so extra heavy computitional task that it would ever deserve a dedicated
> >> server but this is the way they have decided to use and that's it.  I will 
> >> try
> >> to cascade the service through Mapserver, it should lead to a normal 
> >> looking
> >> WMS service that could be accessed with OpenJUMP.
> 
> > ok, that looks like another valid scenario. Although I'd agree that
> > GetCapabilities-requests are usually not a performance burden ;-)
> 
> I started to think that it actually gives a simple way for dealing more heavy
> GetMap requests as well.  When answering to GetCapabilities request the
> system could inform that the first client should ask further service from
> WMS_1, the next from WMS_2 etc. in a round robin way. All what the users
> should know in the beginning is the contact point address to
> GetCapabilities. Is sounds so simple that it might even work.  Anyway, I am
> sure OpenJUMP is not the only WMS client that does not support this.

yes, that sounds reasonable.

I just started to implement a variant of using the capabilities' URLs that will
ask the user whether he wants to use the GetMap-URL in case its different of the
base (Capabilities) URL only. If nobody has objections, I'll check it in if it's
ready.

Best regards, Andreas
-- 
l a t / l o n  GmbH
Aennchenstrasse 19           53177 Bonn, Germany
phone ++49 +228 18496-11     fax ++49 +228 1849629
http://www.lat-lon.de        http://www.deegree.org

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