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)

Field Summary

Fields

Modifier and Type	Field and Description
static String	AGGREGATION_SCHEDULER_TIME
static String	BUFFER_RECORD_NUMBER
static String	BUFFER_RECORD_TIME
protected Map<String,List<Record>>	bufferedRecords
static int	DELAY
static int	INITIAL_DELAY
static org.slf4j.Logger	logger
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
protected PersistenceExecutor	persistenceExecutor
static long	TIME_LOAD_CONFIGURATION The time for first
static long	TIME_RELOAD_CONFIGURATION The Max amount of time for reload a configuration TODO Get from configuration
static TimeUnit	TIME_UNIT
protected int	totalBufferedRecords

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AggregationScheduler(PersistenceExecutor persistenceExecutor)

Method Summary

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(int maxRecordNumber, long oldRecordMaxTime)
protected void	madeAggregation(Record record)
static AggregationScheduler	newInstance(PersistenceExecutor persistenceExecutor)
static AggregationScheduler	newInstance(PersistenceExecutor persistenceExecutor, PersistenceBackendConfiguration configuration)
protected void	reallyFlush(PersistenceExecutor persistenceExecutor)
protected void	ReloadConfiguration()
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

INITIAL_DELAY

public static int INITIAL_DELAY

DELAY

public static int DELAY

TIME_UNIT

public static final TimeUnit TIME_UNIT

AGGREGATION_SCHEDULER_TIME

public static final String AGGREGATION_SCHEDULER_TIME

See Also:

Constant Field Values

BUFFER_RECORD_TIME

public static final String BUFFER_RECORD_TIME

See Also:

Constant Field Values

BUFFER_RECORD_NUMBER

public static final String BUFFER_RECORD_NUMBER

See Also:

Constant Field Values

TIME_RELOAD_CONFIGURATION

public static long TIME_RELOAD_CONFIGURATION

The Max amount of time for reload a configuration TODO Get from configuration

TIME_LOAD_CONFIGURATION

public static long TIME_LOAD_CONFIGURATION

The time for first

MAX_RECORDS_NUMBER

protected static int MAX_RECORDS_NUMBER

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

OLD_RECORD_MAX_TIME_ELAPSED

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

Constructor Detail

AggregationScheduler

protected AggregationScheduler(PersistenceExecutor persistenceExecutor)

Method Detail

newInstance

public static AggregationScheduler newInstance(PersistenceExecutor persistenceExecutor)

newInstance

public static AggregationScheduler newInstance(PersistenceExecutor persistenceExecutor,
                                               PersistenceBackendConfiguration configuration)
                                        throws NumberFormatException,
                                               Exception

Throws:

NumberFormatException

Exception

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

ReloadConfiguration

protected void ReloadConfiguration()
                            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(int maxRecordNumber,
                                           long oldRecordMaxTime)

run

public void run()

Specified by:

run in interface Runnable