Replace MBeanRegistrer with aries jmx whiteboard and remove .management modules
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Key: KARAF-1302
URL: https://issues.apache.org/jira/browse/KARAF-1302
Project: Karaf
Issue Type: Improvement
Affects Versions: 2.2.5
Reporter: Christian Schneider
Assignee: Christian Schneider
Fix For: 3.0.0
Currently we have a management module for each feature (like bundle or package)
and use our own MBeanRegistrer class to install the mbean into the mbean
server.
This ties our management modules to the MBeanRegistrer. Additionally the setup
of the MBeanRegistrer class reqquires that we install a service tracker for the
MBeanServer and hook the register and unregister methods.
I propose to use a much simpler aproach. Aries JMX Whiteboard allows to
register mbeans by just registering them as a service for an interface of
*MBean and adding a property jmx.objectname. This has the advantage that our
management bundles do not need a special dependency and the setup using the
whiteboard pattern is well known from e.g. servlets.
As the MBean registration is passive then we can also make our module structure
simpler. We can move the mbean code and setup into the core module. When the
jmx whiteboard extender is not present the mbean code stays passive. As soon as
the management feature is activated the mbeans become active.
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