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https://issues.apache.org/jira/browse/HIVEMIND-179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12597796#action_12597796
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Jochen Zimmermann commented on HIVEMIND-179:
--------------------------------------------
I finally found a way. Perhaps it is to naiv and it is for sure a little hack
(I explain), but it works and perhaps is not too bad for a first shot :-)
I defined the registry as a service in the hivemind.xml of the framework like
this:
<service-point id="Registry" interface="Registry">
<invoke-factory service-id="RegistryFactory"/>
</service-point>
I wrote the registry factory, which just returns an instance of RegistryImpl.
That's the hack, because I had to get the RegistryInfrastructure from the
static ServiceSerializationHelper and had to cast it.
public class RegistryFactory implements ServiceImplementationFactory
{
public Object createCoreServiceImplementation(
ServiceImplementationFactoryParameters factoryParameters)
{
RegistryInfrastructure r = (RegistryInfrastructure)
ServiceSerializationHelper.getServiceSerializationSupport();
return new RegistryImpl(r);
}
}
Finally I changed the RegistryBuilder to not instantiate the Registry itself
but obtain it from the RegistryInfrastructure.
infrastructure.startup();
return (Registry) infrastructure.getService(Registry.class, null);
This way the registry is a service itself ...
If we could implement the RegistryFactory "clean" someway, what do you think,
would this make any sense?
> Provide access to the Registry
> ------------------------------
>
> Key: HIVEMIND-179
> URL: https://issues.apache.org/jira/browse/HIVEMIND-179
> Project: HiveMind
> Issue Type: New Feature
> Components: framework
> Reporter: Martin Strand
> Attachments: HIVEMIND-179.txt
>
>
> There is currently no way for a service to access its own Registry.
> This would be useful sometimes, for example if you've got a listener that is
> invoked from a non-Hivemind thread:
> public class MyService()
> {
> private Registry registry;
> public MyService()
> {
> registry = getRegistry(); // <-- Need this
> OutsideHivemind.registerListener(this);
> }
> public void invokeListener()
> {
> registry.setupThread();
> // Use some Hivemind services...
> registry.cleanupThread();
> }
> }
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