.NET 2.0 and Ofbiz (SOAP) Web Service Connectivity

[Cholakyan, Marina]

Hello,

 

I am trying to figure out how to use OFBiz web services through SOAP
using C# (.NET 2.0 Visual Studio 2005). I was wondering if this is a
know issue? Any kind of direction on how I can fix this will be great?

 

There are several things I tried to do unsuccessfully. I created a
simple Ofbiz Service that takes three string arguments and return one
string.

 

1) When I try to add Web Reference using WSE 3.0 to my .NET project, the
auto generated proxy has the following error

// CODEGEN: The operation binding 'addWorkflowStep' from namespace
'http://www.ofbiz.org/service/' was ignored.  Specifying a type for
use=literal messages is not supported.

and it doesn't contain the code for the actual web service invocation

 

2) I tried to modify the WSDL (on the local file system) and added the
Web Reference using the Modified wsdl, first I got the following error
when I tried to contact the service

 

System.Web.Services.Protocols.SoapException: Possible SOAP version
mismatch: Envelope namespace http://schemas.xmlsoap.org/wsdl/ was
unexpected. Expecting http://schemas.xmlsoap.org/soap/envelope/.

   at
System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapCl
ientMessage message, WebResponse response, Stream responseStream,
Boolean asyncCall)

   at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String
methodName, Object[] parameters)

   at SimpleConsoleClient.WF.addWorkflowStep.CalladdWorkflowStep(String
id, String applicationId) in
C:\DocumentsandSettings\FPAdmin\Desktop\SRX0703

07601425_Maria\SimpleConsoleClient\SimpleConsoleClient\Web
References\WF\Reference.cs:line 79

   at SimpleConsoleClient.Program.Display() in C:\Documents and
Settings\FPAdmin\Desktop\SRX070307601425_Maria\SimpleConsoleClient\Simpl
eConsoleClient\Program.cs:line 62

   at SimpleConsoleClient.Program.DoWork(Trap action) in C:\Documents
and
Settings\FPAdmin\Desktop\SRX070307601425_Maria\SimpleConsoleClient\Simpl
eConsoleClient\Program.cs:line 20

 

 

3) Modifying the proxy and the wsdl file some more I was able to call
ofbiz service, (I tracked the packages and was able to see the request
and the response), but I was not able to read the response back. I am
keep getting object array of one element that is null.

 

POST http://storm.wcpub.es.xerox.com:8080/webtools/control/SOAPService
HTTP/1.1

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; MS Web Services Client
Protocol 2.0.50727.42)

Content-Type: text/xml; charset=utf-8

SOAPAction: "http://schemas.xmlsoap.org/soap/http"

Host: storm.wcpub.es.xerox.com:8080

Content-Length: 392

Expect: 100-continue

Proxy-Connection: Keep-Alive

HTTP/1.1 100 Continue

<?xml version="1.0" encoding="utf-8"?><soap:Envelope
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><addWorkflowStep
xmlns="http://www.ofbiz.org/service/"><id>10000</id><applicationId>blah<
/applicationId><domainId>foo</domainId></addWorkflowStep></soap:Body></s
oap:Envelope>HTTP/1.0 200 OK

Proxy-Connection: Keep-Alive

Connection: Keep-Alive

Server: Apache-Coyote/1.1

Content-Type: text/xml;charset=utf-8

Content-Length: 629

Date: Wed, 21 Mar 2007 22:16:17 GMT

Set-Cookie: JSESSIONID=2CD21B90923A7153982DE1A28ADFFD08.jvm1;
Path=/webtools

Set-Cookie: OFBiz.Visitor=10306; Expires=Thu, 20-Mar-2008 22:16:18 GMT;
Path=/

<?xml version="1.0" encoding="UTF-8"?><soapenv:Envelope
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

 <soapenv:Body>

  <ns1:addWorkflowStepResponse
xmlns:ns1="http://www.ofbiz.org/service/">

   <workflowStepId xsi:type="soapenc:string"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">10016</workflo
wStepId>

   <responseMessage xsi:type="soapenc:string"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">success</respo
nseMessage>

  </ns1:addWorkflowStepResponse>

 </soapenv:Body>

</soapenv:Envelope>

 

 

4) I used my project to connect to Axis service and it works fine I am
getting a response back and I am able to read it.

5) I also tried to contact ofbiz service thru java eclipse project, also
not successfully.

 

 

Thanks a lot,

Marina

[Shi Jinghai]

Hi Marina,

> There are several things I tried to do unsuccessfully. I created a
> simple Ofbiz Service that takes three string arguments and return one
> string.
>
Perhaps the existing http service can do the same thing?
https://localhost:8443/webtools/control/availableServices?constraint=engine_name@http

There is a testHttp service as an example in OFBiz:
http://localhost:8080/webtools/control/httpService

Regards,

Shi Jinghai/Beijing Langhua Ltd.

[Jacques Le Roux]

Please have a look at http://tinyurl.com/yqsqro

Jacques


I am trying to figure out how to use OFBiz web services through SOAP
using C# (.NET 2.0 Visual Studio 2005). I was wondering if this is a
know issue? Any kind of direction on how I can fix this will be great?



There are several things I tried to do unsuccessfully. I created a
simple Ofbiz Service that takes three string arguments and return one
string.



1) When I try to add Web Reference using WSE 3.0 to my .NET project, the
auto generated proxy has the following error

// CODEGEN: The operation binding 'addWorkflowStep' from namespace
'http://www.ofbiz.org/service/' was ignored.  Specifying a type for
use=literal messages is not supported.

and it doesn't contain the code for the actual web service invocation



2) I tried to modify the WSDL (on the local file system) and added the
Web Reference using the Modified wsdl, first I got the following error
when I tried to contact the service



System.Web.Services.Protocols.SoapException: Possible SOAP version
mismatch: Envelope namespace http://schemas.xmlsoap.org/wsdl/ was
unexpected. Expecting http://schemas.xmlsoap.org/soap/envelope/.

   at
System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapCl
ientMessage message, WebResponse response, Stream responseStream,
Boolean asyncCall)

   at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String
methodName, Object[] parameters)

   at SimpleConsoleClient.WF.addWorkflowStep.CalladdWorkflowStep(String
id, String applicationId) in
C:\DocumentsandSettings\FPAdmin\Desktop\SRX0703

07601425_Maria\SimpleConsoleClient\SimpleConsoleClient\Web
References\WF\Reference.cs:line 79

   at SimpleConsoleClient.Program.Display() in C:\Documents and
Settings\FPAdmin\Desktop\SRX070307601425_Maria\SimpleConsoleClient\Simpl
eConsoleClient\Program.cs:line 62

   at SimpleConsoleClient.Program.DoWork(Trap action) in C:\Documents
and
Settings\FPAdmin\Desktop\SRX070307601425_Maria\SimpleConsoleClient\Simpl
eConsoleClient\Program.cs:line 20





3) Modifying the proxy and the wsdl file some more I was able to call
ofbiz service, (I tracked the packages and was able to see the request
and the response), but I was not able to read the response back. I am
keep getting object array of one element that is null.



POST http://storm.wcpub.es.xerox.com:8080/webtools/control/SOAPService
HTTP/1.1

User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; MS Web Services Client
Protocol 2.0.50727.42)

Content-Type: text/xml; charset=utf-8

SOAPAction: "http://schemas.xmlsoap.org/soap/http"

Host: storm.wcpub.es.xerox.com:8080

Content-Length: 392

Expect: 100-continue

Proxy-Connection: Keep-Alive

HTTP/1.1 100 Continue

<?xml version="1.0" encoding="utf-8"?><soap:Envelope
xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><addWorkflowStep
xmlns="http://www.ofbiz.org/service/"><id>10000</id><applicationId>blah<
/applicationId><domainId>foo</domainId></addWorkflowStep></soap:Body></s
oap:Envelope>HTTP/1.0 200 OK

Proxy-Connection: Keep-Alive

Connection: Keep-Alive

Server: Apache-Coyote/1.1

Content-Type: text/xml;charset=utf-8

Content-Length: 629

Date: Wed, 21 Mar 2007 22:16:17 GMT

Set-Cookie: JSESSIONID=2CD21B90923A7153982DE1A28ADFFD08.jvm1;
Path=/webtools

Set-Cookie: OFBiz.Visitor=10306; Expires=Thu, 20-Mar-2008 22:16:18 GMT;
Path=/

<?xml version="1.0" encoding="UTF-8"?><soapenv:Envelope
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

 <soapenv:Body>

  <ns1:addWorkflowStepResponse
xmlns:ns1="http://www.ofbiz.org/service/">

   <workflowStepId xsi:type="soapenc:string"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">10016</workflo
wStepId>

   <responseMessage xsi:type="soapenc:string"
xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/">success</respo
nseMessage>

  </ns1:addWorkflowStepResponse>

 </soapenv:Body>

</soapenv:Envelope>





4) I used my project to connect to Axis service and it works fine I am
getting a response back and I am able to read it.

5) I also tried to contact ofbiz service thru java eclipse project, also
not successfully.





Thanks a lot,

Marina

[Cameron Smith-6]

I had very similar problems connecting .NET and OFBiz SOAP exported
services.  Someone (I forget who), explained that OFBiz SOAP support is
very primitive at the moment, and does not support complex
types.  However even when I tried it with simple types it did not
work!   There was a discussion about this a while back on the list and
everyone was having the same problem.

Someone suggested using
WSDL4J to generate an adequate WSDL, when I go back to this topic I
will try using this tool.  If I have any success I will post here.  

cameron



               
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[Cholakyan, Marina]

Hi,
Thanks for quick responses!

I found a quick solution, since I am newbie in the whole SOAP, WSDL, Web
Services stuff probably not the best solution, but here it is...

When I used WSE in .NET 2.0 and tried to add Web Reference (where you
specify the Web Service url) and Visual Studio generates the
proxy/client code for the service invocation and sets the message style
to Document for Web service method. It goes something like this

...
[System.Web.Services.Protocols.SoapDocumentMethodAttribute("",
           RequestNamespace = "http://www.ofbiz.org/service/",
           ResponseNamespace = "http://www.ofbiz.org/service/",
           Use = System.Web.Services.Description.SoapBindingUse.Literal,
           ParameterStyle =
System.Web.Services.Protocols.SoapParameterStyle.Wrapped)]
public String yourServiceName(String arg)
{
     object[] result = this.Invoke("yourServiceName ", new object[0]
{arg});
     return (string)result[0];
}
...

Since it is hard to realize what is ofbiz's WSDL SOAP message is
formatted in (RPC or Document) style. I just in case tried to use RPC
and it worked so I replace the code above with.

...
[SoapRpcMethod()]
public String yourServiceName(String arg)
{
     object[] result = this.Invoke("yourServiceName ", new object[0]
{arg});
     return (string)result[0];
}
...

So I didn't use Visual Studio's auto generated proxy and Web Reference,
I just wrote my own client, which is not different from auto generated
code except the changes above.

Marina