org.gcube.accounting.aggregation.scheduler

Class AggregationScheduler

java.lang.Object

org.gcube.accounting.aggregation.scheduler.AggregationScheduler

Direct Known Subclasses:

BufferAggregationScheduler

public abstract class AggregationScheduler
extends Object

Author:

Luca Frosini (ISTI - CNR) http://www.lucafrosini.com/

Field Summary

Fields

Modifier and Type	Field and Description
protected static AggregationScheduler	aggregationScheduler
protected Map<String,List<AggregationStrategy>>	records
protected int	totalBufferedRecords
protected List<UsageRecord>	unaggregableRecords

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AggregationScheduler()

Method Summary

Methods

Modifier and Type	Method and Description
void	aggregate(SingleUsageRecord usageRecord, PersistenceExecutor persistenceExecutor) Get an usage records and try to aggregate with other buffered Usage Record.
protected void	aggregate(SingleUsageRecord usageRecord, PersistenceExecutor persistenceExecutor, boolean forceFlush)
void	flush(PersistenceExecutor persistenceExecutor)
protected Class<? extends AggregatedUsageRecord>	getAggregatedUsageRecordClass(String usageRecordName)
protected Class<? extends AggregationStrategy>	getAggregattionStrategyUsageRecordClass(String usageRecordName)
static AggregationScheduler	getInstance()
protected AggregatedUsageRecord	instantiateAggregatedUsageRecord(UsageRecord usageRecord)
protected AggregationStrategy	instantiateAggregationStrategy(AggregatedUsageRecord aggregatedUsageRecord)
protected abstract boolean	isTimeToPersist()
protected void	madeAggregation(UsageRecord usageRecord)

Methods inherited from class java.lang.Object

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

Field Detail

aggregationScheduler

protected static AggregationScheduler aggregationScheduler

totalBufferedRecords

protected int totalBufferedRecords

records

protected Map<String,List<AggregationStrategy>> records

unaggregableRecords

protected List<UsageRecord> unaggregableRecords

Constructor Detail

AggregationScheduler

protected AggregationScheduler()

Method Detail

getInstance

public static AggregationScheduler getInstance()

getAggregatedUsageRecordClass

protected Class<? extends AggregatedUsageRecord> getAggregatedUsageRecordClass(String usageRecordName)
                                                                        throws ClassNotFoundException

Throws:

ClassNotFoundException

instantiateAggregatedUsageRecord

protected AggregatedUsageRecord instantiateAggregatedUsageRecord(UsageRecord usageRecord)
                                                          throws Exception

Throws:

Exception

getAggregattionStrategyUsageRecordClass

protected Class<? extends AggregationStrategy> getAggregattionStrategyUsageRecordClass(String usageRecordName)
                                                                                throws ClassNotFoundException

Throws:

ClassNotFoundException

instantiateAggregationStrategy

protected AggregationStrategy instantiateAggregationStrategy(AggregatedUsageRecord aggregatedUsageRecord)
                                                      throws Exception

Throws:

Exception

madeAggregation

protected void madeAggregation(UsageRecord usageRecord)

flush

public void flush(PersistenceExecutor persistenceExecutor)
           throws Exception

Throws:

Exception

aggregate

protected void aggregate(SingleUsageRecord usageRecord,
             PersistenceExecutor persistenceExecutor,
             boolean forceFlush)
                  throws Exception

Throws:

Exception

aggregate

public void aggregate(SingleUsageRecord usageRecord,
             PersistenceExecutor persistenceExecutor)
               throws Exception

Get an usage records and try to aggregate with other buffered Usage Record.

Parameters:

usageRecord - the Usage Record To Buffer

Throws:

Exception - if fails

isTimeToPersist

protected abstract boolean isTimeToPersist()