edu.utah.janosvm.kit.management.team
Class ResourceMonitor

java.lang.Object
  |
  +--edu.utah.janosvm.kit.management.team.ResourceMonitor

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

CPUMonitor, MemoryMonitor

public class ResourceMonitor

extends java.lang.Object

implements java.lang.Runnable

Base class for applications that want to poll team's about their resource consumption. An application is expected to start a thread and execute the run() method to actually perform the polling.

Field Summary

private int	iterations The number of times to poll.
private long	msInterval The millisecond interval between polls.
private java.lang.Class	sampler The class used to sample the state of a team.
private java.util.Vector	samplers The set of ResourceSamplers held by this monitor.

Constructor Summary

ResourceMonitor(java.lang.Class sampler)
Construct a ResourceMonitor with the given values.

ResourceMonitor(int iterations, long msInterval, java.lang.Class sampler)
Construct a ResourceMonitor with the given values.

Method Summary

ResourceMonitor	addTeams(java.lang.String[] names) Add a number of teams that should be monitored.
void	beginSampling()
void	endSampling()
void	run() Poll the teams.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait, wait0

Field Detail

iterations

private final int iterations

The number of times to poll.

msInterval

private final long msInterval

The millisecond interval between polls.

sampler

private final java.lang.Class sampler

The class used to sample the state of a team.

samplers

private final java.util.Vector samplers

The set of ResourceSamplers held by this monitor.

Constructor Detail

ResourceMonitor

public ResourceMonitor(int iterations,
                       long msInterval,
                       java.lang.Class sampler)

Construct a ResourceMonitor with the given values.

Parameters:

iterations - The number of times to poll.

msInterval - The millisecond interval between polls.

sampler - The class used to sample the state of a team.

ResourceMonitor

public ResourceMonitor(java.lang.Class sampler)

Construct a ResourceMonitor with the given values. The default iteration count is infinite and the default interval is one second.

Parameters:

sampler - The class used to sample the state of a team.

Method Detail

addTeams

public ResourceMonitor addTeams(java.lang.String[] names)
                         throws java.lang.InstantiationException,
                                java.lang.IllegalAccessException

Add a number of teams that should be monitored.

Parameters:

names - The names of the teams to monitor.

Returns:

this

run

public void run()

Poll the teams.

Specified by:

run in interface java.lang.Runnable

beginSampling

public void beginSampling()

endSampling

public void endSampling()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object