org.graylog2.indexer.rotation.strategies

Class TimeBasedRotationStrategy

java.lang.Object

org.graylog2.indexer.rotation.strategies.AbstractRotationStrategy

org.graylog2.indexer.rotation.strategies.TimeBasedRotationStrategy

All Implemented Interfaces:

RotationStrategy

@Singleton
public class TimeBasedRotationStrategy
extends AbstractRotationStrategy

Nested Class Summary

Nested classes/interfaces inherited from class org.graylog2.indexer.rotation.strategies.AbstractRotationStrategy

AbstractRotationStrategy.Result

Constructor Summary

Constructors

Constructor and Description
TimeBasedRotationStrategy(Indices indices, Deflector deflector, ClusterConfigService clusterConfigService, AuditLogger auditLogger)

Method Summary

Modifier and Type	Method and Description
Class<? extends RotationStrategyConfig>	configurationClass()
RotationStrategyConfig	defaultConfiguration()
protected static org.joda.time.DateTime	determineRotationPeriodAnchor(org.joda.time.DateTime lastAnchor, org.joda.time.Period period) Determines the starting point ("anchor") for a period.
protected AbstractRotationStrategy.Result	shouldRotate(String index)

Methods inherited from class org.graylog2.indexer.rotation.strategies.AbstractRotationStrategy

rotate

Methods inherited from class java.lang.Object

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

Constructor Detail

TimeBasedRotationStrategy

@Inject
public TimeBasedRotationStrategy(Indices indices,
                                         Deflector deflector,
                                         ClusterConfigService clusterConfigService,
                                         AuditLogger auditLogger)

Method Detail

configurationClass

public Class<? extends RotationStrategyConfig> configurationClass()

defaultConfiguration

public RotationStrategyConfig defaultConfiguration()

determineRotationPeriodAnchor

protected static org.joda.time.DateTime determineRotationPeriodAnchor(@Nullable
                                                                      org.joda.time.DateTime lastAnchor,
                                                                      org.joda.time.Period period)

Determines the starting point ("anchor") for a period. To produce repeatable rotation points in time, the period is "snapped" to a "grid" of time. For example, an hourly index rotation would be anchored to the last full hour, instead of happening at whatever minute the first rotation was started. This "snapping" is done accordingly with the other parts of a period. For highly irregular periods (those that do not have a small zero component)

Parameters:

period - the rotation period

Returns:

the anchor DateTime to calculate rotation periods from

shouldRotate

@Nullable
protected AbstractRotationStrategy.Result shouldRotate(String index)

Specified by:

shouldRotate in class AbstractRotationStrategy