org.ow2.jasmine.monitoring.mbeancmd.audit
Class Metric

java.lang.Object
  org.ow2.jasmine.monitoring.mbeancmd.audit.Metric

public class Metric
extends Object

Author:

waeselyf A metric is a collection of attributes for a given mbean

Constructor Summary

Metric(Long t, String source, ObjectName name, AttributeList attl)

Method Summary

static Metric	delta(Metric current, Metric baseline, String attr) Computes the difference between a current and a baseline metric attribute If attr is absent in current, or is not numeric, the value is null.
Attribute	getAttribute(String name) Retrieve the attribute of name name
AttributeList	getAttributes()
ObjectName	getName()
String	getRadical()
String	getSource()
long	getTimestamp()
static Metric	newInstance(String radical)

Methods inherited from class java.lang.Object

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

Constructor Detail

Metric

public Metric(Long t,
              String source,
              ObjectName name,
              AttributeList attl)

Method Detail

getAttribute

public Attribute getAttribute(String name)

Retrieve the attribute of name name

Parameters:

name -

Returns:

the attribute of name name, or null if it does not exist in the metric

getAttributes

public AttributeList getAttributes()

Returns:

the list of attributes in the metric

getName

public ObjectName getName()

Returns:

the name

getSource

public String getSource()

Returns:

the source

getTimestamp

public long getTimestamp()

Returns:

the timestamp

getRadical

public String getRadical()

Returns:

radical

delta

public static Metric delta(Metric current,
                           Metric baseline,
                           String attr)

Computes the difference between a current and a baseline metric attribute If attr is absent in current, or is not numeric, the value is null. If attr is present in current but not in baseline, returns the value of attr

Parameters:

current - current metric

baseline - baseline metric

attr - the attribute

Returns:

the difference of attr between current and baseline. A double value.

newInstance

public static Metric newInstance(String radical)
                          throws InvalidMetricRadical

Parameters:

radical -

Returns:

Throws:

InvalidMetricRadical

Exception