#2 XMLA Session support

[Jaimie Birk]

Have a way to enable/create XMLA sessions. For a simple example of how XMLA sessions are created and used in SOAP messages, see

http://docs.openlinksw.com/virtuoso/xmlxmla.html

The "State Support" section.

Or, see the XMLA specification, the section called "Support for Statefulness in XML for Analysis"

[Luc Boudreau]

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For future reference :

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• client requests a session
  <soap-env:envelope xmlns:soap-env="http://schemas.xmlsoap.org/soap/envelope/" soap-env:encodingstyle="http://schemas.xmlsoap.org/soap/encoding/">
  <soap-env:header>
  <xmla:beginsession xmlns:xmla="urn:schemas-microsoft-com:xml-analysis" mustunderstand="1">
  </xmla:beginsession></soap-env:header>
  <soap-env:body>
  </soap-env:body></soap-env:envelope>

• server returns the SessionID
  <soap-env:header>
  <xmla:session xmlns:xmla="urn:schemas-microsoft-com:xml-analysis" mustunderstand="1" sessionid="NNNNNN">
  </xmla:session></soap-env:header>

• sequential requests of client contains:
  <soap-env:header>
  <xmla:session xmlns:xmla="urn:schemas-microsoft-com:xml-analysis" mustunderstand="1" sessionid="NNNNNN">
  </xmla:session></soap-env:header>

• and finally client cancel the session:
  <soap-env:header>
  <xmla:endsession xmlns:xmla="urn:schemas-microsoft-com:xml-analysis" mustunderstand="1" sessionid="NNNNNN">
  </xmla:endsession></soap-env:header>
  ===========================================================