[R] SSOAP failing

[Duncan Temple Lang]

Olivier Cailloux wrote:
> Duncan Temple Lang a écrit :
>>
>>
>> Olivier Cailloux wrote:
>>> Dear list,
>>>
> Sorry about that, my e-mail has been sent too soon by mistake (also from 
> an incorrect exp. address). I was planning to add further details.
> 
> So I'm running Debian Lenny. sessionInfo() gives:
> R version 2.7.1 (2008-06-23)
> i486-pc-linux-gnu
> 
> locale:
> C
> 
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base   
> Package:       SSOAP
> Version:       0.5-0
> Date:          2009/05/04
> Package:              XML
> Version:              2.3-0
> Date:                 2009/03/04
> Package:              RCurl
> Version:              0.97-3
> Package:       XMLSchema
> Version:       0.1-0
> 
> I must be stupid but I can't find XMLSchema on the omegahat website. (I 
> just installed the 0.1-0 version a few days ago when trying to use 
> SSOAP.) Google gives nothing useful for "XMLSchema site:omegahat.org".

  http://www.omegahat.org/XMLSchema/XMLSchema_0.1-1.tar.gz

or from a link in
    http://www.omegahat.org/XMLSchema/

or via the repository using

   install.packages("XMLSchema", repos = "http://www.omegahat.org/R")

> 
> I'm beginner in both web services and R programming (my knowledge is 
> more in desktop & CORBA Java programming). I am simply trying to make 
> Java and R communicate (call Java code from R remotely), for use by 
> someone else who works in R. I'd like to provide him with a fully 
> functional example. I must recognize that having to step through SSOAP 
> code to find where the problem lies might be too difficult considering 
> my current knowledge (knowing I don't intend to become an expert R 
> programmer). Please don't take it as rude or implying that I'm simply 
> expecting someone to solve the problem for me: I am ready to investigate 
> but I'd simply like to have an idea of how difficult it will be. If I 
> have to patch part of SSOAP or if you think that the functions I need 
> are not implemented yet, then I'd better not insist and try to 
> communicate from R to Java using an other way. If on the other hand you 
> think it should be working and is simply a matter of using the right 
> version of the right package, or using an other web services platform on 
> the Java side, or configuring something differently, etc., then I'll 
> happily dig into it.
> 

Either of Simon Urbanek's rJava  or Rserve packages are worth investigating.

> More generally, if someone has a suggestion on what to use to call Java 
> over TCP/IP from R, I'd be interested. I am currently considering OSS as 
> well as SSOAP. I'd prefer learning an approach that I can reuse for 
> other languages, so possibly a standard like SOAP or CORBA would be best.
> 
> Thanks for any pointer.
> Olivier
> 
>>
>>  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 def at operations[[1]] : subscript out of bounds
>>> Indeed:
>>>    length(smg8EchoDef at operations)
>>> [1] 0
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide 
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>
> 
> ______________________________________________
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> PLEASE do read the posting guide 
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.