Package com.mapr.org.apache.hadoop.metrics.util

Class MetricsDynamicMBeanBase

  • All Implemented Interfaces:
    javax.management.DynamicMBean
    @LimitedPrivate({"HDFS","MapReduce"})
public abstract class MetricsDynamicMBeanBase
extends java.lang.Object
implements javax.management.DynamicMBean
    This abstract base class facilitates creating dynamic mbeans automatically from metrics. The metrics constructors registers metrics in a registry. Different categories of metrics should be in differnt classes with their own registry (as in NameNodeMetrics and DataNodeMetrics). Then the MBean can be created passing the registry to the constructor. The MBean should be then registered using a mbean name (example): MetricsHolder myMetrics = new MetricsHolder(); // has metrics and registry MetricsTestMBean theMBean = new MetricsTestMBean(myMetrics.mregistry); ObjectName mbeanName = MBeanUtil.registerMBean("ServiceFoo", "TestStatistics", theMBean);

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Object getAttribute​(java.lang.String attributeName)  
      javax.management.AttributeList getAttributes​(java.lang.String[] attributeNames)  
      javax.management.MBeanInfo getMBeanInfo()  
      java.lang.Object invoke​(java.lang.String actionName, java.lang.Object[] parms, java.lang.String[] signature)  
      void setAttribute​(javax.management.Attribute attribute)  
      javax.management.AttributeList setAttributes​(javax.management.AttributeList attributes)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • MetricsDynamicMBeanBase

        protected MetricsDynamicMBeanBase​(MetricsRegistry mr,
                                  java.lang.String aMBeanDescription)

    • Method Detail

      • getAttribute

        public java.lang.Object getAttribute​(java.lang.String attributeName)
                              throws javax.management.AttributeNotFoundException,
                                     javax.management.MBeanException,
                                     javax.management.ReflectionException
        Specified by:
        getAttribute in interface javax.management.DynamicMBean
        Throws:
        javax.management.AttributeNotFoundException
        javax.management.MBeanException
        javax.management.ReflectionException

      • getAttributes

        public javax.management.AttributeList getAttributes​(java.lang.String[] attributeNames)
        Specified by:
        getAttributes in interface javax.management.DynamicMBean

      • getMBeanInfo

        public javax.management.MBeanInfo getMBeanInfo()
        Specified by:
        getMBeanInfo in interface javax.management.DynamicMBean

      • invoke

        public java.lang.Object invoke​(java.lang.String actionName,
                               java.lang.Object[] parms,
                               java.lang.String[] signature)
                        throws javax.management.MBeanException,
                               javax.management.ReflectionException
        Specified by:
        invoke in interface javax.management.DynamicMBean
        Throws:
        javax.management.MBeanException
        javax.management.ReflectionException

      • setAttribute

        public void setAttribute​(javax.management.Attribute attribute)
                  throws javax.management.AttributeNotFoundException,
                         javax.management.InvalidAttributeValueException,
                         javax.management.MBeanException,
                         javax.management.ReflectionException
        Specified by:
        setAttribute in interface javax.management.DynamicMBean
        Throws:
        javax.management.AttributeNotFoundException
        javax.management.InvalidAttributeValueException
        javax.management.MBeanException
        javax.management.ReflectionException

      • setAttributes

        public javax.management.AttributeList setAttributes​(javax.management.AttributeList attributes)
        Specified by:
        setAttributes in interface javax.management.DynamicMBean