org.gcube.documentstore.records.aggregation

Class AggregationScheduler

java.lang.Object

org.gcube.documentstore.records.aggregation.AggregationScheduler

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

BufferAggregationScheduler

public abstract class AggregationScheduler
extends Object
implements Runnable

Author:

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

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<String,List<Record>>	bufferedRecords
static int	DELAY
static int	INITIAL_DELAY
static org.slf4j.Logger	logger
protected PersistenceExecutor	persistenceExecutor
protected ScheduledExecutorService	scheduler
static TimeUnit	TIME_UNIT
protected int	totalBufferedRecords

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AggregationScheduler(PersistenceExecutor persistenceExecutor)

Method Summary

Methods

Modifier and Type	Method and Description
void	aggregate(Record record, PersistenceExecutor persistenceExecutor) Get an usage records and try to aggregate with other buffered Usage Record.
protected void	aggregate(Record record, PersistenceExecutor persistenceExecutor, boolean forceFlush)
protected void	clear()
void	flush(PersistenceExecutor persistenceExecutor)
static AggregatedRecord	getAggregatedRecord(Record record)
protected static AggregatedRecord	instantiateAggregatedRecord(Record record)
protected abstract boolean	isTimeToPersist()
protected void	madeAggregation(Record record)
static AggregationScheduler	newInstance(PersistenceExecutor persistenceExecutor)
protected void	reallyFlush(PersistenceExecutor persistenceExecutor)
void	run()
protected abstract void	schedulerSpecificClear()

Methods inherited from class java.lang.Object

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

Field Detail

logger

public static org.slf4j.Logger logger

totalBufferedRecords

protected int totalBufferedRecords

bufferedRecords

protected Map<String,List<Record>> bufferedRecords

persistenceExecutor

protected final PersistenceExecutor persistenceExecutor

scheduler

protected final ScheduledExecutorService scheduler

INITIAL_DELAY

public static final int INITIAL_DELAY

See Also:

Constant Field Values

DELAY

public static final int DELAY

See Also:

Constant Field Values

TIME_UNIT

public static final TimeUnit TIME_UNIT

Constructor Detail

AggregationScheduler

protected AggregationScheduler(PersistenceExecutor persistenceExecutor)

Method Detail

newInstance

public static AggregationScheduler newInstance(PersistenceExecutor persistenceExecutor)

instantiateAggregatedRecord

protected static AggregatedRecord instantiateAggregatedRecord(Record record)
                                                       throws Exception

Throws:

Exception

getAggregatedRecord

public static AggregatedRecord getAggregatedRecord(Record record)
                                            throws Exception

Throws:

Exception

madeAggregation

protected void madeAggregation(Record record)

flush

public void flush(PersistenceExecutor persistenceExecutor)
           throws Exception

Throws:

Exception

schedulerSpecificClear

protected abstract void schedulerSpecificClear()

clear

protected void clear()

aggregate

protected void aggregate(Record record,
             PersistenceExecutor persistenceExecutor,
             boolean forceFlush)
                  throws Exception

Throws:

Exception

reallyFlush

protected void reallyFlush(PersistenceExecutor persistenceExecutor)
                    throws Exception

Throws:

Exception

aggregate

public void aggregate(Record record,
             PersistenceExecutor persistenceExecutor)
               throws Exception

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

Parameters:

singleRecord - the Usage Record To Buffer

Throws:

Exception - if fails

isTimeToPersist

protected abstract boolean isTimeToPersist()

run

public void run()

Specified by:

run in interface Runnable