org.opennms.netmgt.rrd.model.v1

Class RRA

java.lang.Object

org.opennms.netmgt.rrd.model.AbstractRRA

org.opennms.netmgt.rrd.model.v1.RRA

public class RRA
extends AbstractRRA

The Class RRA (Round Robin Archives).

Warning: This representation doesn't support Aberrant Behavior Detection with Holt-Winters Forecasting

Author:

Alejandro Galue

Constructor Summary

Constructors

Constructor and Description
RRA()

Method Summary

Modifier and Type	Method and Description
protected AbstractRRA	createSingleRRA(int dsIndex) Creates a RRA with a single data source.
boolean	formatEquals(RRA rra) Format equals.
boolean	formatMergeable(AbstractRRA sourceRra) Format mergeable.
CFType	getConsolidationFunction() Gets the consolidation function.
List<RRADS>	getDataSources() Gets the data sources.
Double	getXff() Gets the XFF.
boolean	hasAverageAsCF() Checks for average as consolidation function.
void	setConsolidationFunction(CFType consolidationFunction) Sets the consolidation function.
void	setConsolidationFunction(String consolidationFunction) Sets the consolidation function.
void	setDataSources(List<RRADS> dataSources) Sets the data sources.
void	setXff(Double xff) Sets the XFF.

Methods inherited from class org.opennms.netmgt.rrd.model.AbstractRRA

formatEquals, getPdpPerRow, getRows, setPdpPerRow, setRows

Methods inherited from class java.lang.Object

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

Constructor Detail

RRA

public RRA()

Method Detail

getConsolidationFunction

public CFType getConsolidationFunction()

Gets the consolidation function.

Returns:

the consolidation function

setConsolidationFunction

public void setConsolidationFunction(CFType consolidationFunction)

Sets the consolidation function.

Parameters:

consolidationFunction - the new consolidation function

setConsolidationFunction

public void setConsolidationFunction(String consolidationFunction)

Sets the consolidation function.

Parameters:

consolidationFunction - the new consolidation function

getDataSources

public List<RRADS> getDataSources()

Gets the data sources.

Returns:

the data sources

setDataSources

public void setDataSources(List<RRADS> dataSources)

Sets the data sources.

Parameters:

dataSources - the new data sources

getXff

public Double getXff()

Gets the XFF.

XFF The xfiles factor defines what part of a consolidation interval may be made up from *UNKNOWN* data while the consolidated value is still regarded as known. It is given as the ratio of allowed *UNKNOWN* PDPs to the number of PDPs in the interval. Thus, it ranges from 0 to 1 (exclusive).

Returns:

the XFF

setXff

public void setXff(Double xff)

Sets the XFF.

Parameters:

xff - the new XFF

formatEquals

public boolean formatEquals(RRA rra)

Format equals.

Parameters:

rra - the RRA object

Returns:

true, if successful

createSingleRRA

protected AbstractRRA createSingleRRA(int dsIndex)
                               throws IllegalArgumentException

Description copied from class: AbstractRRA

Creates a RRA with a single data source.

Specified by:

createSingleRRA in class AbstractRRA

Parameters:

dsIndex - the RRA-DS index

Returns:

the abstract RRA

Throws:

IllegalArgumentException - the illegal argument exception

formatMergeable

public boolean formatMergeable(AbstractRRA sourceRra)

Description copied from class: AbstractRRA

Format mergeable.

Two RRA can be merged if and only if the Consolidation Function and the PDP per row are the same.

The amount of rows is not strict for a merge operation.

• If the sourceRra has more rows than the current RRA, the result will be truncated by the number of rows on the current RRA.
• If the sourceRra has less rows than the current RRA, the result will have a NaN window as big as the different between the number of rows.

Specified by:

formatMergeable in class AbstractRRA

Parameters:

sourceRra - the source RRA object

Returns:

true, if the format is mergeable

hasAverageAsCF

public boolean hasAverageAsCF()

Description copied from class: AbstractRRA

Checks for average as consolidation function.

Specified by:

hasAverageAsCF in class AbstractRRA

Returns:

true, if the consolidation function is AVERAGE