WSDLSupplier configuration and/or check is not proper/obvious
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Key: AXIS2-3492
URL: https://issues.apache.org/jira/browse/AXIS2-3492
Project: Axis 2.0 (Axis2)
Issue Type: Bug
Components: kernel
Reporter: Dobri Kitipov
Hi everybody,
There is one mail thread http://marc.info/?l=axis-dev&m=118399944531093&w=2
that talks about using WSDLSupplier that gives you the possibility to hook your
own WSDL on the fly. This is done implementing an interface
org.apache.axis2.dataretrieval.WSDLSupplier.
What I am currently trying to do is to test this feature. I implemented my own
WSDLSupplier, but not sure how to specify it. Looking into the above mentioned
thread we can read:
"I added a check in printWSDL() to see if there was a WSDLSupplier sitting in
the "WSDLSupplier" parameter of the AxisService. If so, it attempts to call
the WSDLSupplier to obtain the Definition object from there dynamically. It
then runs that WSDL through the usual printDefinitionObject() API. This allows
my custom service to plug in and generate its own WSDL."
IMHO I should add a parameter into the services.xml file like:
<serviceGroup>
<service name="Test1">
<description>Web Service Test1</description>
<parameter
name="WSDLSupplier">com.test.wsdlsupplier.MyWSDLSupplier</parameter>
<messageReceivers>
<messageReceiver class="xxxxx"
mep="http://www.w3.org/2004/08/wsdl/in-out"/>
</messageReceivers>
<operation name="echo"/>
</service>
</serviceGroup>
The problem is that into org.apache.axis2.description.AxisService method public
void printWSDL(OutputStream out, String requestIP) the check is:
WSDLSupplier supplier = (WSDLSupplier)getParameterValue("WSDLSupplier");
So I receive:
java.lang.ClassCastException: java.lang.String
org.apache.axis2.description.AxisService.printWSDL(AxisService.java:1167)
...
which is something expected because getParameterValue("WSDLSupplier"); returns
a String object, but not WSDLSupplier. So it is not possible to cast String to
WSDLSupplier.
AFAIK when you add a parameter to services/axis2.xml it is supposed to be
retrieved as String. May be there is a need of an additional new attribute like
"type". E.g.:
<parameter name="WSDLSupplier "
type="class">com.test.wsdlsupplier.MyWSDLSupplier</parameter>
or for example something like specifing the deployer into axis2.xml:
<deployer extension=".class" directory="pojo"
class="org.apache.axis2.deployment.POJODeployer"/>
or in our case
<WSDLSupplier class="com.test.wsdlsupplier.MyWSDLSupplier"/> ?
May be more close to this is the way "ServiceClass" parameter is treated by
Axis. It finally loads it using a ClassLoader.
We need to think more deeply which one is preferable.
I was advised to open the JIRA
(http://www.mail-archive.com/axis-dev@ws.apache.org/msg39772.html).
Best regards, Dobri
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