org.ow2.jasmine.probe.collectors.jmx.internal
Class JmxCollector

java.lang.Object
  org.ow2.jasmine.probe.collectors.JCollector
      org.ow2.jasmine.probe.collectors.jmx.internal.JmxCollector

All Implemented Interfaces:

JasmineCollector

public class JmxCollector
extends JCollector

Collector implementation for JMX. This implementation works with a separate thread used to pre-collect the results. Using a thread is interesting when we do not want to be stuck in case info cannot be got because the target is off.

Author:

durieuxp

Field Summary

Fields inherited from class org.ow2.jasmine.probe.collectors.JCollector

hostName, indicator, logger, period, probeId, probeManager

Constructor Summary

JmxCollector(String probeId, JasmineIndicator indicator, int period, String mbean, String csv)
Constructor

Method Summary

void	addResult(List<Metric> metrics) Add a new result to the list.
Collection<String>	getAttrlist() Getter for attrlist (list of provided attribute and or fragment names).
JasmineIndicatorValue	getLastResult() Retrieve the last results for this indicator This method return a List of results in case indicator represents actually a list of values.
ObjectName	getObjectName()
protected boolean	hasAttributes() Allows the JmxWorker to know if attributes and/or fragments are provided by the indicator definition.
boolean	needResult() Check if this Collector needs a new result.
void	startPolling() Start polling
void	stopPolling() Stop polling

Methods inherited from class org.ow2.jasmine.probe.collectors.JCollector

addJsr, addLongJsr, addLongValues, addValues, averageJsr, diffJsr, diffLongValues, diffValues, divideJsr, divideLongValues, divideValues, getDomainName, getIndicator, getIndicatorName, getProbeId, getServerName, isRemoved, jsrProps, longValue, maxJsr, minJsr, multiplyJsr, multiplyLongValues, multiplyValues, remove, setProbeManager

Methods inherited from class java.lang.Object

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

Constructor Detail

JmxCollector

public JmxCollector(String probeId,
                    JasmineIndicator indicator,
                    int period,
                    String mbean,
                    String csv)

Constructor

Parameters:

probeId - probe Identifier

indicator - JasmineIndicator definition

period - in seconds

mbean - MBean pattern

csv - CSV list of attributes

Method Detail

getAttrlist

public Collection<String> getAttrlist()

Getter for attrlist (list of provided attribute and or fragment names).

Returns:

return the provided attribute and or fragment names.

getObjectName

public ObjectName getObjectName()
                         throws JasmineCollectorException

Returns:

The ObjectName instance corresponding to the mbean pattern provided in the indicator definition.

Throws:

JasmineCollectorException - an ObjectName could not be obtained as the pattern in not well formed given the JMX naming conventions.

hasAttributes

protected boolean hasAttributes()

Allows the JmxWorker to know if attributes and/or fragments are provided by the indicator definition.

Returns:

true if attributes and or fragments are provided by the indicator definition.

getLastResult

public JasmineIndicatorValue getLastResult()
                                    throws JasmineCollectorException

Retrieve the last results for this indicator This method return a List of results in case indicator represents actually a list of values.

Specified by:

getLastResult in interface JasmineCollector

Specified by:

getLastResult in class JCollector

Returns:

The constructed JasmineIndicatorValue

Throws:

JasmineCollectorException

stopPolling

public void stopPolling()

Stop polling

Specified by:

stopPolling in interface JasmineCollector

Specified by:

stopPolling in class JCollector

startPolling

public void startPolling()

Start polling

Specified by:

startPolling in interface JasmineCollector

Specified by:

startPolling in class JCollector

needResult

public boolean needResult()

Check if this Collector needs a new result. A stopped collector returns false. Otherwise, it returns true if there are nor metrics, or if metrics are out-dated regarding to the poll period.

Returns:

true if it needs one

addResult

public void addResult(List<Metric> metrics)

Add a new result to the list.

Parameters:

metrics -