ddf.metrics.collector.rrd4j

Class RrdJmxCollector

java.lang.Object

ddf.metrics.collector.rrd4j.RrdJmxCollector

All Implemented Interfaces:

JmxCollector

public class RrdJmxCollector
extends Object
implements JmxCollector

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_DATA_SOURCE_NAME
static String	DEFAULT_METRICS_DIR
static String	DERIVE_DATA_SOURCE_TYPE
static String	GAUGE_DATA_SOURCE_TYPE
static int	ONE_YEAR_IN_15_MINUTE_STEPS
static String	RRD_FILENAME_SUFFIX
static int	TEN_YEARS_IN_HOURS

Constructor Summary

Constructors

Constructor and Description
RrdJmxCollector(String mbeanName, String mbeanAttributeName, String metricName)
RrdJmxCollector(String mbeanName, String mbeanAttributeName, String metricName, String metricType)
RrdJmxCollector(String mbeanName, String mbeanAttributeName, String metricName, String metricType, String dataSourceName)

Method Summary

Modifier and Type	Method and Description
void	destroy() Cleanup when the JmxCollector is destroyed, e.g., when system is shutdown.
String	getMbeanAttributeName()
String	getMbeanName()
String	getMetricName()
String	getMetricsDir()
String	getMetricType()
String	getRrdDataSourceType()
String	getRrdPath()
protected int	getSampleRate()
protected long	getSampleSkipCount()
void	init() Initialization when the JmxCollector is created.
static boolean	isNumeric(Object value) Determines whether an object's value is a numeric type or a String with a numeric value.
void	setMinimumUpdateTimeDelta(long minimumUpdateTimeDelta)
protected void	setSampleRate(int sampleRate)
void	updateSamples() Configures a scheduled threaded executor to poll the metric's MBean periodically and add a sample to the RRD file with the metric's current value.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_METRICS_DIR

public static final String DEFAULT_METRICS_DIR

RRD_FILENAME_SUFFIX

public static final String RRD_FILENAME_SUFFIX

See Also:

Constant Field Values

DERIVE_DATA_SOURCE_TYPE

public static final String DERIVE_DATA_SOURCE_TYPE

See Also:

Constant Field Values

DEFAULT_DATA_SOURCE_NAME

public static final String DEFAULT_DATA_SOURCE_NAME

See Also:

Constant Field Values

GAUGE_DATA_SOURCE_TYPE

public static final String GAUGE_DATA_SOURCE_TYPE

See Also:

Constant Field Values

ONE_YEAR_IN_15_MINUTE_STEPS

public static final int ONE_YEAR_IN_15_MINUTE_STEPS

See Also:

Constant Field Values

TEN_YEARS_IN_HOURS

public static final int TEN_YEARS_IN_HOURS

See Also:

Constant Field Values

Constructor Detail

RrdJmxCollector

public RrdJmxCollector(String mbeanName,
                       String mbeanAttributeName,
                       String metricName)

RrdJmxCollector

public RrdJmxCollector(String mbeanName,
                       String mbeanAttributeName,
                       String metricName,
                       String metricType)

RrdJmxCollector

public RrdJmxCollector(String mbeanName,
                       String mbeanAttributeName,
                       String metricName,
                       String metricType,
                       String dataSourceName)

Method Detail

isNumeric

public static boolean isNumeric(Object value)

Determines whether an object's value is a numeric type or a String with a numeric value.

Parameters:

value - the Object to be tested whether it has a numeric value

Returns:

true if object's value is numeric, false otherwise

getMbeanName

public String getMbeanName()

Specified by:

getMbeanName in interface JmxCollector

getMbeanAttributeName

public String getMbeanAttributeName()

Specified by:

getMbeanAttributeName in interface JmxCollector

getMetricName

public String getMetricName()

Specified by:

getMetricName in interface JmxCollector

getMetricType

public String getMetricType()

Specified by:

getMetricType in interface JmxCollector

init

public void init()

Initialization when the JmxCollector is created. Called by blueprint.

destroy

public void destroy()

Cleanup when the JmxCollector is destroyed, e.g., when system is shutdown. Called by blueprint.

updateSamples

public void updateSamples()
                   throws CollectorException

Configures a scheduled threaded executor to poll the metric's MBean periodically and add a sample to the RRD file with the metric's current value.

Throws:

CollectorException

getMetricsDir

public String getMetricsDir()

getRrdPath

public String getRrdPath()

getRrdDataSourceType

public String getRrdDataSourceType()

getSampleRate

protected int getSampleRate()

setSampleRate

protected void setSampleRate(int sampleRate)

getSampleSkipCount

protected long getSampleSkipCount()

setMinimumUpdateTimeDelta

public void setMinimumUpdateTimeDelta(long minimumUpdateTimeDelta)