Am Don, 2002-11-21 um 19.29 schrieb Costin Manolache: > The solution is not yet very well defined. yup. I have experienced the same.
> > Right now catalina can be extended with Valves or connectors or listeners. > Some of them (like jk connector ) can define MBeans. The major problem > is having the admin interface recognize them - it should work > but I never tried. I'll have to look at them. I only know that the default mbeans are plugged in with a lifecyclelistener. > > I already committed some code to modeler to allow modules to > have their own modeler description ( in META-INF/modeler-mbean.xml ) > and have it loaded automatically using getResources(). The code > is not yet used, but will probably be for 5.0 ( or I hope so ). > But if you implement your own mbean - you can register them yourself. > ok. would be interesting to see what the avalon project is doing in this direction - they have management extensions for their containers. but I like the idea of beeing able to add MBeans to webapps. where is your code located in the jakarta-modeller source tree ? > The only important thing is to get the MBeanServer using the same > mechanisms ( i.e. get existing instead of creating new one ). > don't know exactly what you mean by this ... > Also note that there are discussions on using modeler mbean to implement > config changes ( it is not yet clear what's the best solution ), that > may affect the support for custom mbeans. > sounds interesting. > Another issue that wasn't much discussed is having mechanisms to > use mbeans as extensions ( hooks, etc) - and use the mbean lifecycle > and naming as a registration ( or alternatively, use a JNDI/JMX combination > - the big problem with JMX is that you can't get the real object, all > calls must be made via mbean server) yes that's the tradeof. this makes JMX so powerful ( no direct references ) but it can make things slow ... one thing I could imagine is to go both directions: a) via MBeans b) via plain java interfaces ... thanks very much for your help -- Jakob > > Costin > > > > Jakob Praher wrote: > > > hi all, > > > > first of all kudos for the 4.1.x release - working with jmx is simply > > great ;-) > > > > I have a question, how to best extend catalina through jmx: > > > > for instance I have a special connector mbean or adaptor mbean, that I > > want to load into catalina. > > > > is there a way (for instance in the server.xml configuration file) to > > laod this mbean during startup ? > > > > if not: what is the best way to plug in a third party mbean into > > catalina ? > > > > should I write a custom lifecyclelistener? > > > > thanks > > > > -- Jakob > > "the best way to predict the future ist to invent it" -- Alan Kay > > > > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
