Looks like the Javadoc of the service(ServiceManager) method of the component that
uses the services is wrong. Here you are a service method that works
/**
* Servicing of the component by the container during
* which service dependencies declared under the component
* can be resolved using the supplied service manager.
*
* @param serviceManager the service manager
* @avalon.dependency
type="avalon.merlin.service.manual.interfaces.random.RandomGenerator:1.0" key="random"
* @avalon.dependency
type="avalon.merlin.service.manual.interfaces.identity.Identifiable" key="simple"
*/
public void service(ServiceManager serviceManager) throws ServiceException {
getLogger().debug("[service start]");
serviceManager.lookup("random");
serviceManager.lookup("simple");
getLogger().debug("[service end]");
}
And this is a service method that fails
/**
* Servicing of the component by the container during
* which service dependencies declared under the component
* can be resolved using the supplied service manager.
*
* @param serviceManager the service manager
* @avalon.dependency
type="avalon.merlin.service.manual.interfaces.random.RandomGenerator:1.0" key="random"
* @avalon.dependency
type="avalon.merlin.service.manual.interfaces.identity.Identifiable" NOTE HOW I FORGET
THE KEY
*/
public void service(ServiceManager serviceManager) throws ServiceException {
getLogger().debug("[service start]");
serviceManager.lookup("random");
serviceManager.lookup("simple");//THIS WILL FAIL AT RUNTIME
getLogger().debug("[service end]");
}
To make the previous method work you need to lookup by interface name, not by key
/**
* Servicing of the component by the container during
* which service dependencies declared under the component
* can be resolved using the supplied service manager.
*
* @param serviceManager the service manager
* @avalon.dependency
type="avalon.merlin.service.manual.interfaces.random.RandomGenerator:1.0" key="random"
* @avalon.dependency
type="avalon.merlin.service.manual.interfaces.identity.Identifiable"
*/
public void service(ServiceManager serviceManager) throws ServiceException {
getLogger().debug("[service start]");
serviceManager.lookup("random");
serviceManager.lookup(Identifiable.class.getName());
getLogger().debug("[service end]");
}
Cheers
Roberto.
> -----Mensaje original-----
> De: ANDI KUSNADI [SMTP:[EMAIL PROTECTED]
> Enviado el: viernes, 03 de septiembre de 2004 7:29
> Para: [EMAIL PROTECTED]
> Asunto: Help me how to exposing service and consume it
>
>
> Dear all,
>
> i am try tutorial from merlin e.g auto and manual but when i execute it's show up
> erro messgage says unknown key="random" why it's happening ?
>
> i am appreciate for the help
>
> Thank you
>
> andi kusnadi
>
>
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