Exception mapping for Web Services

Hi,
I'm exposing a method of an EJB as a web service (EJB 2.0, JBoss 3.2.1 and JBoss.NET, i.e. Axis) but I have a problem with exceptions. My method can throw an Exception which is quite complex (it can contains a Collection of error objects) and Axis can't automatically produce a correct WSDL neither it can serialize all the exception's content. I tried writing my own Axis serializer for the exception but it didn't work...
I'd like to have a .NET client catching the Exception.
Does anybody know how can I map complex exceptions for a J2EE Web Service? Or where can I find an example of interoperability with the mapping of complex exceptions?
Thanks,
Andrea

Hi Holger,
I will not translate the coding into VB. So if you want to do this it is OK with me.
An idea would be after some testing by the community to provide the functionality as a DLL. This way it could also easily be added to a VB project.
However I assume that some developers prefer to integrate the coding themselves so that they might add additional customer specific functionlity.
For example not to raise an exception if a specific error is in the return parameter because they want to ignore it.
Best regards,
Andre

Similar Messages

How to use an ABAP exception as a web service fault

Hi experts,
I have created a web service out of an ABAP function module, using the SAP standard wizard for web services. The ABAP function has some exceptions defined. Now the question is: How can I "translate" these ABAP function exceptions to web service faults?
In the WSDL file I can see that the web service defines the faults, but they are not part of the web service operation (in the WSDL file). So when I load the definition into JDeveloper, the faults are not recognized.
Any ideas what I am missing here?
Thanks in advance!
Kind regards, Matthias

Exceptions from SAP function module are not translated as web service fault message, this is a standard behaviour due among other to the fact that exceptions are not "in line" with the definition a web service fault message.
Usually when you want to use a standard SAP function module and expose it as web service, you need to "wrap-it" into a new Z function module.
In that new function module you must capture the exceptions and convert them into a web service fault message structure (usually containing error type, text and number)
Karim

Getting null pointer exception in secured web services client

Hi all,
I am developing client for web services. It works fine when the web service is unsecured. Its giving a null pointer exception at call.invoke when the web service is secured. I have tried setting the system properties. It did not help. any other way I can do. Can you help me with settings i need to do to be able to connect to secured server.
Thanks

Hi all,
I am developing client for web services. It works fine when the web service is unsecured. Its giving a null pointer exception at call.invoke when the web service is secured. I have tried setting the system properties. It did not help. any other way I can do. Can you help me with settings i need to do to be able to connect to secured server.
Thanks

Message Wait Activity Or Notification Wait Activity for Web Service Wait

Hi,
I have a Message Wait Activity Or Notification Wait Activity which waits for a message from my Web-Service. But this Activity keeps on waitinf for the message even if the web-service is down. How do I make it invoke a System Exception if the web-service is down or the web-service cannot be connected?

Hi,
I suspect you've put a lot of thought into this and decided to take this approach, but could you describe why you're thinking your web service might be down frequently enough to do this?
Here's one approach to having the Message Wait activity discover when something outside its control occurs. Put the Message Wait activity inside of one of two transitions going through a Split/Join. For the other transition going through the Split/Join, add a Timer activity (if you are using Oracle BPM 10g). Set the Timer activity to some period that you want to use to periodically hit the web service to ensure it is up (e.g. '5m' to test to see if the web service is up every 5 minutes). Don't have this occur every few seconds or your Engine's performance will be degraded.
From the Timer activity there would be one transition. This transition leaving the Timer activity would be an unconditional transition going to an Automatic activity. This Automatic activity would have an unconditional transition going back to the Timer activity, and a conditional transition going to the Join activity. The logic in the conditional transition leaving the Automatic activity could be just a single boolean instance variable (e.g. "wsDown"). When the Automatic activity discovers that the web service is down, this copy of the work item instance will flow to the Join activity.
The logic in the Automatic activity will invoke a dummy web service running on the same machine you're worried about. If an exception is thrown and caught inside the Automatic activity indicating the web service is down, you'd set a boolean flag "wsDown = true".
The Join activity would have the logic:
this = copy
action = RELEASE If the "wsDown" instance variable is set to true when it leaves the Join activity, then the web service was down and the Message Wait activity was never notified from the outside web service.
Hope this helps,
Dan

About XML Parameter for Web Service invoking

I would like to use the XML parameter as the Web Service's input(Attachment is
the XML schema) in WebLogic Server 8 sp1. When I generated the Web Service and
use the WebLogic Server generate test web page to test it, I got Exception. The
WebLogic Server can't constructe the input XML.
The correct XML should look like this:
<ids>
<desc>Description</desc>
<id>1</id>
<id>2</id>
<id>3</id>
</ids>
Is there any one can tell me whether this kind of XML was permitted for Web Service
invoking or not?
[sample.xsd]

Hi Andy,
On the test page, before the invoke of the operation, did it say
something like:

if so, the service itself may be working OK, the deficiency is that the
test page tries its best to determine sample values for the invoke,
however it does not know in this case.
Did you try with a client?
Your XML should be fine.
Regards,
Bruce
Andy wrote:
>
I would like to use the XML parameter as the Web Service's input(Attachment is
the XML schema) in WebLogic Server 8 sp1. When I generated the Web Service and
use the WebLogic Server generate test web page to test it, I got Exception. The
WebLogic Server can't constructe the input XML.
The correct XML should look like this:
<ids>
<desc>Description</desc>
<id>1</id>
<id>2</id>
<id>3</id>
</ids>
Is there any one can tell me whether this kind of XML was permitted for Web Service
invoking or not?
Name: sample.xsd
sample.xsd Type: ACT Project (text/xml)
Encoding: base64

Invalid Content Type Error for Web Service

Hi Experts,
We have a XI / PI Web Service, and have created an Adaptive Web Service Model for the same. For using this web service model, we have created a HTTP destination of type WSDL.
This configuration works great in our development and consolidation server.
While working with our production server, with all the settings same as consolidation server, the following error is generated for Web Service call. using the AWS model
java.io.IOException: Invalid content type while requesting http://<host>:<port>/webdynpro/resources/<application_package>/guicall.wsdl. Expected Content-type: text/xml, received Content-type: content/unknown, used user to connect: null
The HTTP destination address is the one specified in bold above.
Also, in later part of the stack trace we are bale to see this error:
com.sap.tc.webdynpro.model.webservice.exception.WSModelRuntimeException: Exception on creation of service metadata for WS metadata destination
Please guide us on this issue.
Best Regards,
Alka.

Hi Alka,
How did you configure the Webservice Destinations in Visual Admin for a webservice explosed by XI system.
I mean what was the URL specified, did you specify XI SYSTEM userid password ???
How was the webservice published to inspection.wsil in XI system ??
Thanks,
Regards,
Aditya Metukul

XI for Web Services

Hi experts,
I want some guidance on the following:-
1) How can we implement XI with SAP SCEM(Supply Chain Event Management) and SAP Internet sales.
2)our client wants to get SAP XI involved for Web services. He wants that his customers should be able to access data through web portal . the data can be dynamic or static . How to go about it?
3)How XI can be integrated with SAP mobile applications?
Regards
Saras Jain

Hi,
1) How can we implement XI with SAP SCEM(Supply Chain Event Management) and SAP Internet sales.
You can use SAP XI contents for SAP SCEM in which you will find almost all the interfaces for implementing the integration of SCEM.
2)our client wants to get SAP XI involved for Web services. He wants that his customers should be able to access data through web portal . the data can be dynamic or static . How to go about it?
Yes, you can use SAP XI as a middleware to expose SAP functionality as a webservice. For more details about the SCEM contents and how Enterprise service works refer to the below link
https://www.sdn.sap.com/irj/sdn/explore-es
3)How XI can be integrated with SAP mobile applications?
SAP XI is a middleware so it provides the integration for any of the platform it could be SAP MAP or it could be RFID or any other third party tool
Regard
Sumit Bhutani

Re: Why doesn't WL7.0 support get/post bindings for web services ...

hi!!!
Could you pls point to any code example.
thanks
Pushpa
"Richard Berger" <[email protected]> wrote:
>
Manoj: Thanks for the answer - do you have or can you point me at any
code samples
that accomplish this? (Yes, .NET is limited to strings/ints in their
get/post
bindings).
Thanks so much!
RB
PS - Also, can you explain any apparent discrepancy between your answer
and what
the WL documentation stated (again, it may be my misunderstanding).
"manoj cheenath" <[email protected]> wrote:
WL 7.0 does allow you to access the web service through
the browser. It even allows you to invoke service methods
with complex type arguments (.Net only supports primitive
types) and also to view the request and response soap
message for the invocation.
regards,
-manoj
"Richard Berger" <[email protected]> wrote in message
news:[email protected]...
This might be a naive question, but according to the documentation,WL 7.0
does
not support http post/get bindings for web services. Thus, for meto
access a
web service, I need to write a "middle tier" of some sort (I used
the
automatically
generated Java proxy code and JSP). All works fine, but it seems
like
it
would
sure be nice to have HTML forms access web services without havingto
write a
middle tier.
NET does this and it is extremely useful - is there a reason that
BEA
chose not
to provide this feature? (e.g. is it architecturally unsound in anyway?
or is
there an easy way to simulate it?). Given some of the Web Workshoppositioning
re: ease of use and .NET comparison, this seems like an omission.
Any insights are greatly appreciated.
Enjoy,
RB
PS - Here's the info from the documentation
Web Services Description Language (WSDL) 1.1 Specification
WSDL is an XML-based language that describes Web services. WSDL definesWeb services
as a set of endpoints operating on messages; these message containeither
message-style
or RPC-style information. The operations and messages are describedabstractly
in WSDL, and then bound to a concrete network protocol and messageformat
to define
an endpoint. Related concrete endpoints are combined into abstractendpoints (services).
WSDL is extensible to allow the description of endpoints and theirassociated
messages regardless of what message formats or network protocols areused
to communicate,
however, the only bindings described in the specification describehow to
use
WSDL in conjunction with SOAP 1.1, HTTP GET/POST, and MIME.
Note: WebLogic Server supports only SOAP 1.1 bindings.
The WSDL 1.1 Specification is available at http://www.w3.org/TR/wsdl.

This isn't a straight FORM Post as in the http binding support in WSDL. It posts
a soap message.
It's apparent that Workshop supports form-post and form-get.
But I dont see how it is done with straight WebLogic webservices. Does WebLogic
server read the web-services.xml or the WSDL file? I dont see a way to put in
http-post binding in the former and in the latter it seems to be ignored.
Can someone clarify.
Thanks.
Chu-chi
"manoj cheenath" <[email protected]> wrote:
Here is a live example:
http://65.193.192.35:7001/base/SoapInteropBaseService
Here is an example that you can download:
http://manojc.com/?sample2
This is how you run it:
http://manojc.com/?tutorial/doc/howtorun.html
More info can be found from the edocs:
7.0:
http://edocs.bea.com/wls/docs70/webserv/index.html
8.1:
http://edocs.bea.com/wls/docs81/webserv/index.html
Regards,
-manoj
http://manojc.com
"pushpa krishna" <[email protected]> wrote in message
news:[email protected]...
hi!!!
Could you pls point to any code example.
thanks
Pushpa
"Richard Berger" <[email protected]> wrote:
Manoj: Thanks for the answer - do you have or can you point me at
any
code samples
that accomplish this? (Yes, .NET is limited to strings/ints in their
get/post
bindings).
Thanks so much!
RB
PS - Also, can you explain any apparent discrepancy between your answer
and what
the WL documentation stated (again, it may be my misunderstanding).
"manoj cheenath" <[email protected]> wrote:
WL 7.0 does allow you to access the web service through
the browser. It even allows you to invoke service methods
with complex type arguments (.Net only supports primitive
types) and also to view the request and response soap
message for the invocation.
regards,
-manoj
"Richard Berger" <[email protected]> wrote in message
news:[email protected]...
This might be a naive question, but according to the documentation,WL 7.0
does
not support http post/get bindings for web services. Thus, for
me
to
access a
web service, I need to write a "middle tier" of some sort (I used
the
automatically
generated Java proxy code and JSP). All works fine, but it seems
like
it
would
sure be nice to have HTML forms access web services without havingto
write a
middle tier.
NET does this and it is extremely useful - is there a reason that
BEA
chose not
to provide this feature? (e.g. is it architecturally unsound in
any
way?
or is
there an easy way to simulate it?). Given some of the Web Workshoppositioning
re: ease of use and .NET comparison, this seems like an omission.
Any insights are greatly appreciated.
Enjoy,
RB
PS - Here's the info from the documentation
Web Services Description Language (WSDL) 1.1 Specification
WSDL is an XML-based language that describes Web services. WSDL
defines
Web services
as a set of endpoints operating on messages; these message containeither
message-style
or RPC-style information. The operations and messages are describedabstractly
in WSDL, and then bound to a concrete network protocol and messageformat
to define
an endpoint. Related concrete endpoints are combined into abstractendpoints (services).
WSDL is extensible to allow the description of endpoints and theirassociated
messages regardless of what message formats or network protocols
are
used
to communicate,
however, the only bindings described in the specification describehow to
use
WSDL in conjunction with SOAP 1.1, HTTP GET/POST, and MIME.
Note: WebLogic Server supports only SOAP 1.1 bindings.
The WSDL 1.1 Specification is available at http://www.w3.org/TR/wsdl.

Why doesn't WL7.0 support get/post bindings for web services ...

This might be a naive question, but according to the documentation, WL 7.0 does
not support http post/get bindings for web services. Thus, for me to access a
web service, I need to write a "middle tier" of some sort (I used the automatically
generated Java proxy code and JSP). All works fine, but it seems like it would
sure be nice to have HTML forms access web services without having to write a
middle tier.
.NET does this and it is extremely useful - is there a reason that BEA chose not
to provide this feature? (e.g. is it architecturally unsound in any way? or is
there an easy way to simulate it?). Given some of the Web Workshop positioning
re: ease of use and .NET comparison, this seems like an omission.
Any insights are greatly appreciated.
Enjoy,
RB
PS - Here's the info from the documentation
Web Services Description Language (WSDL) 1.1 Specification
WSDL is an XML-based language that describes Web services. WSDL defines Web services
as a set of endpoints operating on messages; these message contain either message-style
or RPC-style information. The operations and messages are described abstractly
in WSDL, and then bound to a concrete network protocol and message format to define
an endpoint. Related concrete endpoints are combined into abstract endpoints (services).
WSDL is extensible to allow the description of endpoints and their associated
messages regardless of what message formats or network protocols are used to communicate,
however, the only bindings described in the specification describe how to use
WSDL in conjunction with SOAP 1.1, HTTP GET/POST, and MIME.
Note: WebLogic Server supports only SOAP 1.1 bindings.
The WSDL 1.1 Specification is available at http://www.w3.org/TR/wsdl.

Manoj: Thanks for the answer - do you have or can you point me at any code samples
that accomplish this? (Yes, .NET is limited to strings/ints in their get/post
bindings).
Thanks so much!
RB
PS - Also, can you explain any apparent discrepancy between your answer and what
the WL documentation stated (again, it may be my misunderstanding).
"manoj cheenath" <[email protected]> wrote:
WL 7.0 does allow you to access the web service through
the browser. It even allows you to invoke service methods
with complex type arguments (.Net only supports primitive
types) and also to view the request and response soap
message for the invocation.
regards,
-manoj
"Richard Berger" <[email protected]> wrote in message
news:[email protected]...
This might be a naive question, but according to the documentation,WL 7.0
does
not support http post/get bindings for web services. Thus, for meto
access a
web service, I need to write a "middle tier" of some sort (I used theautomatically
generated Java proxy code and JSP). All works fine, but it seems likeit
would
sure be nice to have HTML forms access web services without havingto
write a
middle tier.
NET does this and it is extremely useful - is there a reason that BEAchose not
to provide this feature? (e.g. is it architecturally unsound in anyway?
or is
there an easy way to simulate it?). Given some of the Web Workshoppositioning
re: ease of use and .NET comparison, this seems like an omission.
Any insights are greatly appreciated.
Enjoy,
RB
PS - Here's the info from the documentation
Web Services Description Language (WSDL) 1.1 Specification
WSDL is an XML-based language that describes Web services. WSDL definesWeb services
as a set of endpoints operating on messages; these message containeither
message-style
or RPC-style information. The operations and messages are describedabstractly
in WSDL, and then bound to a concrete network protocol and messageformat
to define
an endpoint. Related concrete endpoints are combined into abstractendpoints (services).
WSDL is extensible to allow the description of endpoints and theirassociated
messages regardless of what message formats or network protocols areused
to communicate,
however, the only bindings described in the specification describehow to
use
WSDL in conjunction with SOAP 1.1, HTTP GET/POST, and MIME.
Note: WebLogic Server supports only SOAP 1.1 bindings.
The WSDL 1.1 Specification is available at http://www.w3.org/TR/wsdl.

WSDL error during generation of ABAP proxy for web service

Hi friends,
I am getting error during the generation of ABAP proxy object for web service developed in .NET .
Error : Proxy generation terminated: WSDL error (<extension> not supported).
How to make this WSDL file compatible for ABAP proxy.
I have tried to edit WSDL file in XML Spy but did not get any option to replace/remove the tag <extention>.
If any one worked on this. Please help me its urgent.
Thanks and regards,
Shivanand.

HI ,
I am having the same issue!!!
Does ABAP Proxy Generation support <extension> ?
Is there a list available of what is supported and what not (please consider I do not have access to sap notes)?
Thanks

Best book for Web Services

Can you suggest me what's best book for Web Services and XML to study? I'm planning to buy..
Thanks in advance..

Why does it need to be the best one? What would that even mean? Just buy something reputable, like an O'Reilly book, it's not going to be so horrifically poor that you can't learn from it

How to activate trace for web services

Hi Experts,
How to activate trace for web services in SOAMANAGER.
We are not able to view the Payload trace of the error logs.
Can anyone please let me know how to go about this???
Regards,
Ashwini

Hi Ashwini,
The thread below might be useful to you:
[SOAMANAGER - Get the XML generated;
Regards, Trevor

Building client proxies for web services with SOAP attachemtns

Hi all.
I'm currently building a series of web services that take SOAP attachments as
input, but I am unable to generate the java proxies for testing the services via
WebLogic Workshop 8.1. When I attempt to build the proxy, I get the following
error:
Warning: Failed to generate client proxy from WSDL definition for this service.
Suggestion: Please verify the <types> section of the WSDL.
Is there something I need to alter to get this to work, or does workshop not support
client proxies for web services with DataHandler parameters?
Thanks.
-Brian

Thanks for the help. This is my first web service with SOAP attachments, so it
may have been a long time till I realized that.
-Brian
"Michael Wooten" <[email protected]> wrote:
>
Thanks Brian,
The problem is that you are trying to use the "document" soap-style :-)
If you change this to "rpc", you'll should be able to successfully generate
the
client proxy jar. The soap-style property, is at the bottom of the "protocol"
property sheet section, for the JWS.
Regards,
Mike Wooten
"Brian McLoughlin" <[email protected]> wrote:
Sure, sorry about that. Attached is the wsdl for a sample web service
I created
just to test the proxy generation.
"Michael Wooten" <[email protected]> wrote:
Hi Brian,
Would it be possible for you to post the WSDL, so we can see what might
be causing
the problem?
Regards,
Mike Wooten
"Brian McLoughlin" <[email protected]> wrote:
Hi all.
I'm currently building a series of web services that take SOAP attachments
as
input, but I am unable to generate the java proxies for testing theservices
via
WebLogic Workshop 8.1. When I attempt to build the proxy, I get the
following
error:
Warning: Failed to generate client proxy from WSDL definition for
this
service.
Suggestion: Please verify the <types> section of the WSDL.
Is there something I need to alter to get this to work, or does workshop
not support
client proxies for web services with DataHandler parameters?
Thanks.
-Brian

Stub for web service in JSP

How do i embed a scriptlet inside my JSP page for the stub of my web service? is there any examples that i can refer to?
Thanks in advance. ;)

Check out the 2 How To:
9.0.4 / 10.1.2 "How to use OC4J JSP Tags for Web Services" [1].
10.1.3 (preview) "Access J2EE 1.4 JAX-RPC Java Web Services from Web Clients" [2].
Hope this helps,
Eric
[1] http://www.oracle.com/technology/sample_code/tech/java/codesnippet/webservices/wstags/index.html
[2] http://www.oracle.com/technology/products/jdev/101/howtos/jaxrpc/java14_ws_web_clients.html

(261936172) Q general Are there seperate logs for web services?

Q<general> Are there seperate logs for web services?
A<general> It does not appear that there are any separate logs for web services.
There is knex.log file that records the errors that occur during deployment of
your .jws files. There is also the standard server log that provides information
about server status - you can write to this programmatically if you wish. There
is also the access.log file which record all the HTTP requests so this might cover
some of your web service requests that are transmitted over HTTP.

Maybe the user has deniad Access to the Runbook, check in Runbook Designer.
Seidl Michael | http://www.techguy.at |
twitter.com/techguyat | facebook.com/techguyat

Exception mapping for Web Services

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