Inter-component communication

kmtong Mar 26, 2002 11:58 AM

I am going to use JMX to build our application-level infrastructure. What I am thinking of is to use MBeans as the application components which allows us to deliver a highly configurable system at a very short time by plugging in the necessary components.

I am trying to write a LoginService as the first service. The idea is to use the JMX's notification mechanism as the communication channel. Other MBeans would "broadcast" using a pre-defined "subject" and let the LoginService to acknowledge the request, so that the MBean would know whether login is successful or not.

I am not sure this implementation is good or not. As currently I faced the problem that the MBean would have a busy waiting (for notification acknowledgement) before the function can be returned.

Any comments would be appreciated.

KM

1. Re: Inter-component communication

adrian.brock Mar 26, 2002 12:25 PM (in response to kmtong)

I'm not sure why you need to use notifications for this.
JMX is already loosely bound. You just need a standard
name for the login service. e.g.

LoginInfo result = (LoginInfo) invoke(
new ObjectName("MyDomain:service=login"),
"login",
new Object[] {"Subject"},
new Class[] {String.class.getName()}
);

What you register at MyDomain:service=login
can change dynamically as long at is has a management
operation
LoginInfo login(String subject);

Regards,
Adrian
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