Listing 4a - First part of the Webservice

1.	import sys, StringIO

2.	  # import modules for Web service
3.	  from ZSI import TC
4.	  from ZSI import *


5.	  def showPlayerAverage(self, REQUEST):
6.	      """ parses a SOAP request with PlayerName and Scores, wich 
7.	      is send to the method in the variable 'soap_data' in 
8.	      the REQUEST, and sends back a SOAP response with the average 
9.	      of the scores """

10.	if REQUEST.has_key('soap_data'):
11.	    IN_VAR = REQUEST.get('soap_data')
12.	else:
13.	    raise "Error", "No Input"

14.	OUT = StringIO.StringIO()

15.	try:
16.	    ps = ParsedSoap(IN_VAR)
17.	except ParseException, e:
18.	    FaultFromZSIException(e).AsSOAP(OUT) 
19.	    REQUEST.RESPONSE.setBody(OUT.getvalue())
20.	    REQUEST.RESPONSE.setHeader('Content-Type', 'text/xml', 0)
21.	    return REQUEST.RESPONSE
22.	except Exception, e:
23.	    # Faulted while processing; assume it's in the header.
24.	    FaultFromException(e, 1).AsSOAP(OUT) 
25.	    REQUEST.RESPONSE.setBody(OUT.getvalue())
26.	    REQUEST.RESPONSE.setHeader('Content-Type', 'text/xml', 0)
27.	    return REQUEST.RESPONSE

28.	# We are not prepared to handle any actors or 
29.	# mustUnderstand elements.
30.	# Arbitrary fault back with the first one found.
31.	a = ps.WhatActorsArePresent()
32.	if len(a):
33.	    FaultFromActor(a[0]).AsSOAP(OUT) 
34.	    REQUEST.RESPONSE.setBody(OUT.getvalue())
35.	    REQUEST.RESPONSE.setHeader('Content-Type', 'text/xml', 0)
36.	    return REQUEST.RESPONSE
37.	mu = ps.WhatMustIUnderstand()
38.	if len(mu):
39.	    uri, localname = mu[0]
40.	    FaultFromNotUnderstood(uri, localname).AsSOAP(OUT) 
41.	    REQUEST.RESPONSE.setBody(OUT.getvalue())
42.	    REQUEST.RESPONSE.setHeader('Content-Type', 'text/xml', 0)
43.	    return REQUEST.RESPONSE