Re: [Springframework-developer] some jmx questions.

[Rob H. <ro...@ca...>]

Mark,

It seems that you are using a fairly old version of JMX - a lot of the 
class names are now different, but I don't think that is the problem. 
I've put some time aside next week to really polish up JMX support and 
perform a lot of testing on different platforms. I'll get you an answer 
on this during the week.

Rob

Mark Pollack wrote:

>Hi,
> 
>I was playing around with the JMX sandbox - very useful - and have a few questions  Wasn't sure if I should post on the forum...but anyway...
> 
>I couldn't get the MetadataModelMBeanInfoAssembler to work, when I tried to execute a managed operation I got "no result" shown in the MX4J http console, although only the methods I chose to expose were displayed.  If I remove the usage of the metadata and rely on the reflection support - it all works fine but I'd like to only expose some of the methods in my class.
> 
>Here is a code snip since I was doing this inside a helper class I already had for MX4J.  Commenting out the metadata config code results in a happy app... :)  
> 
> 
>        JmxMBeanAdapter adapter = new JmxMBeanAdapter();
>        adapter.setBeanFactory(beanFactory_);
>        adapter.setServer(mBeanServer_);
>        adapter.setBeans(beans_);
>        
>//metadata config start
>
>        JmxAttributeSource attributesImpl = new CommonsAttributesJmxAttributeSource();
>        MetadataModelMBeanInfoAssembler ass = new MetadataModelMBeanInfoAssembler();
>        ass.setAttributeSource(attributesImpl);
>        MetadataNamingStrategy naming = new MetadataNamingStrategy();
>        naming.setAttributeSource(attributesImpl);
>        adapter.setAssembler(ass);
>        adapter.setNamingStrategy(naming);
>
>//metadata config end
>        
>        LOG.info("Registering mbeans....");
>        adapter.afterPropertiesSet();
>        LOG.info("Done registering mbeans.");
> 
>and I have added attributes such as
> 
>/**
> * @@org.springframework.jmx.metadata.support.ManagedResource(objectName="TeamWork:Name=UserService", description="User Management")
> *  
> */
>public class HibernateUserService extends HibernateDaoSupport implements
>        UserService
> 
> 
>    /**
>     * 
>     * @@org.springframework.jmx.metadata.support.ManagedOperation(description="Create a user with a unique id")
>     */
>    public User create(String uniqueName)
> 
> 
>and the beans_ map contains an entry 
><entry key="TeamWork:Name=UserService"><ref bean="UserService"/></entry>
>
>with a log like this....
>
>INFO [main] 2005-01-21 17:26:01,359 [com.codestreet.application.jmx.DefaultAdapterFactoryBean] - Registering mbeans....
>
>DEBUG [main] 2005-01-21 17:26:01,671 [org.springframework.jmx.JmxMBeanAdapter] - Bean Name: UserService has been autodetected for JMXification. Instantiating Now.
>
>DEBUG [main] 2005-01-21 17:26:01,671 [org.springframework.jmx.JmxMBeanAdapter] - Bean with name: UserService is already registered for JMXification.
>
>DEBUG [main] 2005-01-21 17:26:01,906 [org.springframework.jmx.JmxMBeanAdapter] - Located bean under key [TeamWork:Name=UserService] registering with JMX server.
>
>DEBUG [main] 2005-01-21 17:26:01,906 [org.springframework.jmx.JmxMBeanAdapter] - Registering and Assembling MBean: TeamWork:Name=UserService
>
>INFO [main] 2005-01-21 17:26:01,937 [org.springframework.jmx.JmxMBeanAdapter] - Registered MBean: TeamWork:Name=UserService
>
>INFO [main] 2005-01-21 17:26:01,937 [com.codestreet.application.jmx.DefaultAdapterFactoryBean] - Done registering mbeans.
>
> 
>
>Another issue was that for some reason the commons-attributes compiler was changing the string TeamWork:Name=UserService to TeamWork.Name=UserService, replacing the colon with a period.  Have you seen that?
> 
>By way of extention has it been considered to add support for decribing method parameters in the operation attribute and relaying that info to the modelmbean?
> 
>Thanks any help...
> 
>Cheers,
>Mark
> 
> 
> 
> 
> 
> 
> 
> 
>
>
>
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