Olivier Cailloux wrote:
Dear list,
I am trying to use the SSOAP package to access a very simple SOAP
service, included as a demonstrator in the axis2 Apache package:
"Version" (takes no input parameters and should return a string with the
version number). The web service itself seems to be working as I could
access it using an other client (eclipse Web Server tester).
You will find the service wsdl here:
http://smg8.ulb.ac.be:8080/axis2/services/Version?wsdl, and informations
on the other services I tried here:
http://smg8.ulb.ac.be:8080/axis2/services/listServices.
I used the following commands:
library("SSOAP")
smg8Version <- SOAPServer("smg8.ulb.ac.be", "axis2/services/Version",
8080)
.SOAP(smg8Version, "getVersion", action=I("VersionHttpSoap11Endpoint"))
The first command seems to give a proper smg8Version object, but the
second one fails with "Error: evaluation nested too deeply: infinite
recursion / options(expressions=)?".
The best thing to do is find where the error is occurring.
You can step through the .SOAP call and see where the problem arises.
The issue is in fromXML when converting the result.
In the separation of the code in the SSOAP package into
SSOAP and XMLSchema, I overlooked some methods for the fromXML()
function for cases where no type information is available.
There is now a new version (0.1-1) of XMLSchema on the Omegahat web site.
When reporting problems such as these, it is important to provide
information about what OS, version of R, and the different packages
you are using. The code above involves the SSOAP, XML, RCurl and
XMLSchema packages.
D.
I tried different "action" values, because I don't know what I should
put there. But I always get the same error.
Also, FYI, the following command produces the following output:
smg8Def <-
processWSDL("http://smg8.ulb.ac.be:8080/axis2/services/Version?wsdl";,
verbose=TRUE)
processing (sub) schema http://axisversion.sample
1 ) Exception
2 ) Exception
3 ) getVersionResponse
Warning message:
In processWSDL("http://smg8.ulb.ac.be:8080/axis2/services/Version?wsdl";, :
Ignoring additional <service><port> ... elements
and then
I also tried a simpler service (WSDL manually created myself, but I am
not sure it is correct although it validates):
smg8EchoDef <-
processWSDL("http://smg8.ulb.ac.be:8080/axis2/services/EchoService?wsdl";,
verbose=TRUE)
processing (sub) schema http://smg8.ulb.ac.be/echoSvc/
1 ) TheString
genSOAPClientInterface(def = smg8EchoDef)
Error in d...@operations[[1]] : subscript out of bounds
Indeed:
length(smg8echo...@operations)
[1] 0
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and provide commented, minimal, self-contained, reproducible code.
