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From "Jake Shapiro" <Jake.Shap...@iag.com.au>
Subject How to pass runtime jndiName param to EJBProxyFactory in hivemind 1.1.1
Date Thu, 08 Feb 2007 07:14:15 GMT

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I'm using hivemind 1.1.1 to perform JNDI lookup of remote session EJB
whose providerUrl and jndiName are only known at runtime.

The providerUrl and jndiName are provided by the client with the
original request and during post-processing callback to the client is
made using these values to locate client remote service. While I managed
to pass providerUrl to NameLookup I'm unable to pass jndiName as neither
NameLookupImpl nor EJBProxyFactory have  setter for it. 

I have tried playing with configuration points and own implementation of
ServiceImplementationFactory without success. If I hard-code  jndi-name
attribute value it works but the problem is it's unknown at the
build/deployment time so it must be a run-time arg

Descriptor and code follows. 

<?xml version="1.0"?>
<module id="au.com.cgu.webinsure.common.service" version="1.1.1">
<!-- Client-side Service  -->
	<service-point id="ClientService"
interface="au.com.companyname.service.ClientService" />

	<implementation service-id="ClientService">
		<invoke-factory>
			<construct class="impl.ClientServiceImpl">
				<set-service property="remoteRef"
service-id="ClientServiceRemote" />
			</construct>
		</invoke-factory>
	</implementation>
	
	<service-point id="ClientServiceRemote"
interface="au.com.companyname.service.ClientServiceRemote"
visibility="private">
		<invoke-factory
service-id="hivemind.lib.EJBProxyFactory">
			<construct
home-interface="au.com.companyname.ejb.ClientServiceHome"
jndi-name="${jndiNameKey}" name-lookup-service-id="NameLookupService" />
		</invoke-factory>
		<interceptor service-id="hivemind.LoggingInterceptor" />
	</service-point>

	<service-point id="NameLookupService"
interface="org.apache.hivemind.lib.NameLookup">
		<invoke-factory service-id="hivemind.BuilderFactory"
model="singleton">
			<construct
class="org.apache.hivemind.lib.impl.NameLookupImpl">
				<set property="initialFactory"
value="com.ibm.websphere.naming.WsnInitialContextFactory" />
				<set property="providerURL"
value="${java.naming.provider.url}" />
			</construct>
		</invoke-factory>
		<interceptor service-id="hivemind.LoggingInterceptor" />
	</service-point>
</module>
/////////////////////////////////////////////

...
ClientService service  = getClientService(providerUrl, jndiName);
service.doSomething(); // barfs here
...
    protected final ClientService getClientService(final String
providerUrl,final String jndiName) {
        System.setProperty(Context.PROVIDER_URL, providerUrl);
        System.setProperty("jndiNameKey", jndiName);
        //  Construct Hivemind registry. 
        // By that time all system properties hivemind relies upon
should be set. 
        RegistryBuilder builder = new RegistryBuilder();
        builder.addDefaultModuleDescriptorProvider();
        Registry registry =
builder.constructRegistry(Locale.getDefault());
        return (ClientService )  registry.getService(
        	        "au.com.companyname.service.ClientService",
        	        ClientService.class);

Any thoughts?
Thanks,

Jake



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