Package org.openmuc.framework.driver.aggregator

Class AggregatorChannel

java.lang.Object

org.openmuc.framework.driver.aggregator.AggregatorChannel

Direct Known Subclasses:

AverageAggregation, DiffAggregation, LastAggregation, PulseEnergyAggregation

public abstract class AggregatorChannel
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
protected org.openmuc.framework.dataaccess.Channel	aggregatedChannel
protected long	aggregationInterval
protected long	aggregationSamplingTimeOffset
protected ChannelAddress	channelAddress
protected org.openmuc.framework.dataaccess.Channel	sourceChannel
protected long	sourceLoggingInterval

Constructor Summary

Constructors

Constructor	Description
AggregatorChannel(ChannelAddress channelAddress, org.openmuc.framework.dataaccess.DataAccessService dataAccessService)

Method Summary

Modifier and Type	Method	Description
abstract double	aggregate(long currentTimestamp, long endTimestamp)	Performs aggregation.
java.util.List<org.openmuc.framework.data.Record>	getLoggedRecords(long currentTimestamp, long endTimestamp)

Methods inherited from class java.lang.Object

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

Field Detail

channelAddress

protected ChannelAddress channelAddress

aggregatedChannel

protected org.openmuc.framework.dataaccess.Channel aggregatedChannel

sourceChannel

protected org.openmuc.framework.dataaccess.Channel sourceChannel

sourceLoggingInterval

protected long sourceLoggingInterval

aggregationInterval

protected long aggregationInterval

aggregationSamplingTimeOffset

protected long aggregationSamplingTimeOffset

Constructor Detail

AggregatorChannel

public AggregatorChannel(ChannelAddress channelAddress,
                         org.openmuc.framework.dataaccess.DataAccessService dataAccessService)
                  throws AggregationException

Throws:

AggregationException

Method Detail

aggregate

public abstract double aggregate(long currentTimestamp,
                                 long endTimestamp)
                          throws AggregationException

Performs aggregation.

Parameters:

currentTimestamp - start TS.

endTimestamp - stop TS.

Returns:

the aggregated value.

Throws:

AggregationException - if an error occurs.

getLoggedRecords

public java.util.List<org.openmuc.framework.data.Record> getLoggedRecords(long currentTimestamp,
                                                                          long endTimestamp)
                                                                   throws org.openmuc.framework.dataaccess.DataLoggerNotAvailableException,
                                                                          java.io.IOException,
                                                                          AggregationException

Throws:

org.openmuc.framework.dataaccess.DataLoggerNotAvailableException

java.io.IOException

AggregationException