Content Web services Client -Possibility of WSDL location dynamic

Using code that was generated with wsimport, can the service endpoint be overridden without having to regenerate the code?

I am following below steps to generate war.

1.Deploy the war file to my app server (tomcat)
2.Access the WSDL via the URL e.g. localhost:8080/service/helloservice?wsdl
3.use the URL with wsimport to generate client classes for example: wsimport -keep http://localhost:8080/service/helloservice?Wsdl
4.packaged all the class file in a jar CWSClient and put that in buildpath
5.I use those classes in my client app to call the service

The problem is that is the service is deployed on an app server running on diferent environment, the communication between client and service never happens. I am trying to know what is the best way to create stubs that does not have server and port hardcoded in the stub used by the client.

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Comments

Nizar Ghazal

Hi Rama,

If I understand your question, correctly, I think you're looking for something like this, in Java:

QName qname = new QName("urn:Core.service.livelink.opentext.com", "Authentication");

URL newEndpoint = new URL("http://your_content_server/cws/Authentication.svc");

cwsAuthClient = new Authentication_Service(newEndpoint, qname).getBasicHttpBindingAuthentication();

You can dynamically change the end-point you're using in your code. I think that you could probably test for connectivity, and then choose the appropriate binding depending on availability, but it's not something I've had to test for.

Thanks.

Brahmaji

You can keep the WSDL URLs in a properties file and read them while preparing the URL in the generated stubs.

For instance you have following entry in properties file.

AUTHENTICATION_URL = http://your_content_server/cws/Authentication?wsdl

Read the value and provide it as an arguement for the URL constructor.

QName qname = new QName("urn:Core.service.livelink.opentext.com", "Authentication");

// Get the value for AUTHENTICATION_URL from properties file here.

URL newEndpoint = new URL(<Value for key AUTHENTICATION_URL >);

You just need to update the properties file whenever WSDL location changes. You don't need to recompile the stubs.

HTH,

Brahmaji.

Rama Kishore Kolli

I am getting below exception after updating the code for reading WDL endpoint from Prop file. Please let us know if any clue. Top 3 rows I am doing sysout to check whether qname and URL is correct or not and that is fine.

newEndpoint- http://localhost:8080/cws/services/DocumentManagement?wsdl
qname-getNamespaceURI-urn:DocMan.service.livelink.opentext.com
qname-getLocalPart-DocumentManagement
javax.xml.ws.WebServiceException: Method listNodesByPageAndName is exposed as WebMethod, but there is no corresponding wsdl operation with name {urn:Doc
.service.livelink.opentext.com}ListNodesByPageAndName in the wsdl:portType{urn:DocMan.service.livelink.opentext.com}DocumentManagement
        at com.sun.xml.ws.model.JavaMethodImpl.freeze(JavaMethodImpl.java:382)
        at com.sun.xml.ws.model.AbstractSEIModelImpl.freeze(AbstractSEIModelImpl.java:124)
        at com.sun.xml.ws.model.RuntimeModeler.buildRuntimeModel(RuntimeModeler.java:336)
        at com.sun.xml.ws.db.DatabindingImpl.<init>(DatabindingImpl.java:99)
        at com.sun.xml.ws.db.DatabindingProviderImpl.create(DatabindingProviderImpl.java:74)
        at com.sun.xml.ws.db.DatabindingProviderImpl.create(DatabindingProviderImpl.java:58)
        at com.sun.xml.ws.db.DatabindingFactoryImpl.createRuntime(DatabindingFactoryImpl.java:120)
        at com.sun.xml.ws.client.WSServiceDelegate.buildRuntimeModel(WSServiceDelegate.java:882)
        at com.sun.xml.ws.client.WSServiceDelegate.createSEIPortInfo(WSServiceDelegate.java:899)
        at com.sun.xml.ws.client.WSServiceDelegate.addSEI(WSServiceDelegate.java:862)
        at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:451)
        at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:420)
        at com.sun.xml.ws.client.WSServiceDelegate.getPort(WSServiceDelegate.java:402)
        at javax.xml.ws.Service.getPort(Service.java:119)
        at com.opentext.livelink.service.docman.DocumentManagement_Service.getBasicHttpBindingDocumentManagement(DocumentManagement_Service.java:72)

Wallace Ho

Our web services have overloading constructors defined. You do not need to instantiate a new Qname object. Just pass the URL object to the constructor.