org.apache.hadoop.metrics.util
Class MetricsDynamicMBeanBase
java.lang.Object
org.apache.hadoop.metrics.util.MetricsDynamicMBeanBase
- All Implemented Interfaces:
- javax.management.DynamicMBean
- Direct Known Subclasses:
- RpcActivityMBean
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 |
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 |
MetricsDynamicMBeanBase
protected MetricsDynamicMBeanBase(MetricsRegistry mr,
java.lang.String aMBeanDescription)
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
Copyright © 2009 The Apache Software Foundation