com.bigdata.rdf.sail.webapp.lbs

Interface IHostMetrics

All Known Implementing Classes:

AbstractHostMetrics, CounterSetHostMetricsWrapper, GangliaHostMetricWrapper

public interface IHostMetrics

Generic interface exposes an abstract model of the performance metrics for a given host.

Author:

Bryan Thompson

Method Summary

Methods

Modifier and Type	Method and Description
String[]	getMetricNames() Return the names of all known metrics.
Number	getNumeric(String name) Return a numeric representation of the named metric.
<T extends Number> T	getNumeric(String name, T defaultValue) Return a numeric representation of the named metric.

Method Detail

getNumeric

Number getNumeric(String name)

Return a numeric representation of the named metric.

Parameters:

name - The metric.

Returns:

The numeric representation of that metric -or- null if there is no such metric available.

Throws:

IllegalArgumentException - if the name is null.

getNumeric

<T extends Number> T getNumeric(String name,
                              T defaultValue)

Return a numeric representation of the named metric.

Parameters:

name - The metric.

defaultValue - The default value.

Returns:

The numeric representation of that metric -or- the defaultValue if there is no such metric available.

Throws:

IllegalArgumentException - if the name is null.

IllegalArgumentException - if the defaultValue is null.

getMetricNames

String[] getMetricNames()

Return the names of all known metrics.