require 'java'

module JMX

    include_package 'javax.management'
    include_package 'javax.management.remote'
    include_package 'java.util'

    class MBean
        include_class 'javax.management.ObjectName'

        def initialize(mbsc, object_name)
            @mbsc = mbsc
            @object_name = ObjectName.new object_name
            info = mbsc.getMBeanInfo @object_name
            info.attributes.each do | mbean_attr |
                self.class.instance_eval do 
                    define_method mbean_attr.name do
                        @mbsc.getAttribute @object_name, "#{mbean_attr.name}"
                    end
                end
            end
        end
    end

    url = JMXServiceURL.new "service:jmx:rmi:///jndi/rmi://localhost:3000/jmxrmi"
    connector = JMXConnectorFactory::connect url, HashMap.new
    mbsc = connector.mbean_server_connection

    logging = MBean.new mbsc, "java.util.logging:type=Logging"
    # list all Loggers
    logging.LoggerNames.each do | logger_name |
        puts logger_name
    end
end