org.gcube.accounting.aggregation.scheduler

Class BufferAggregationScheduler

java.lang.Object

org.gcube.accounting.aggregation.scheduler.AggregationScheduler

org.gcube.accounting.aggregation.scheduler.BufferAggregationScheduler

public class BufferAggregationScheduler
extends AggregationScheduler

Author:

Luca Frosini (ISTI - CNR) http://www.lucafrosini.com/ This class implements a Simple Buffer with timeout strategy. It buffer a predefined number of Records before invoking a persistence.

Field Summary

Fields

Modifier and Type	Field and Description
protected long	firstBufferedTime
protected boolean	firstOfBuffer
protected static int	MAX_RECORDS_NUMBER Define the MAX number of Record to buffer.
protected static long	OLD_RECORD_MAX_TIME_ELAPSED The Max amount of time elapsed form last record before after that the buffered record are persisted even if TODO Get from configuration

Fields inherited from class org.gcube.accounting.aggregation.scheduler.AggregationScheduler

aggregationScheduler, records, totalBufferedRecords, unaggregableRecords

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BufferAggregationScheduler()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isTimeToPersist()
protected void	specificClear()

Methods inherited from class org.gcube.accounting.aggregation.scheduler.AggregationScheduler

aggregate, aggregate, clear, flush, getAggregatedUsageRecordClass, getAggregattionStrategyUsageRecordClass, getInstance, instantiateAggregatedUsageRecord, instantiateAggregationStrategy, madeAggregation

Methods inherited from class java.lang.Object

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

Field Detail

MAX_RECORDS_NUMBER

protected static final int MAX_RECORDS_NUMBER

Define the MAX number of Record to buffer. TODO Get from configuration

See Also:

Constant Field Values

OLD_RECORD_MAX_TIME_ELAPSED

protected static final long OLD_RECORD_MAX_TIME_ELAPSED

The Max amount of time elapsed form last record before after that the buffered record are persisted even if TODO Get from configuration

See Also:

Constant Field Values

firstOfBuffer

protected boolean firstOfBuffer

firstBufferedTime

protected long firstBufferedTime

Constructor Detail

BufferAggregationScheduler

protected BufferAggregationScheduler()

Method Detail

specificClear

protected void specificClear()

Specified by:

specificClear in class AggregationScheduler

isTimeToPersist

public boolean isTimeToPersist()

Specified by:

isTimeToPersist in class AggregationScheduler