org.gcube.accounting.aggregator.aggregation

Class Aggregator

java.lang.Object

org.gcube.accounting.aggregator.aggregation.Aggregator

public class Aggregator
extends Object

Author:

Luca Frosini (ISTI - CNR)

Field Summary

Fields

Modifier and Type	Field and Description
protected File	aggregateRecordsBackupFile
protected AggregationStatus	aggregationStatus
protected com.couchbase.client.java.Bucket	bucket
protected File	originalRecordsbackupFile
protected Calendar	startTime

Constructor Summary

Constructors

Constructor and Description
Aggregator(AggregationStatus aggregationStatus, com.couchbase.client.java.Bucket bucket, File originalRecordsbackupFile, File aggregateRecordsBackupFile)

Method Summary

Modifier and Type	Method and Description
void	aggregate()
protected void	aggregateRow(AggregatorBuffer aggregatorBuffer, String json)
protected com.couchbase.client.java.document.json.JsonArray	generateKey(String key) Generate a key for map-reduce
protected com.couchbase.client.java.document.JsonDocument	getJsonDocument(com.couchbase.client.java.view.ViewRow row)
protected com.couchbase.client.java.view.ViewResult	getViewResult()
protected void	retrieveAndAggregate(com.couchbase.client.java.view.ViewResult viewResult)

Methods inherited from class java.lang.Object

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

Field Detail

aggregationStatus

protected final AggregationStatus aggregationStatus

bucket

protected final com.couchbase.client.java.Bucket bucket

originalRecordsbackupFile

protected final File originalRecordsbackupFile

aggregateRecordsBackupFile

protected final File aggregateRecordsBackupFile

startTime

protected Calendar startTime

Constructor Detail

Aggregator

public Aggregator(AggregationStatus aggregationStatus,
                  com.couchbase.client.java.Bucket bucket,
                  File originalRecordsbackupFile,
                  File aggregateRecordsBackupFile)

Method Detail

aggregate

public void aggregate()
               throws Exception

Throws:

Exception

generateKey

protected com.couchbase.client.java.document.json.JsonArray generateKey(String key)

Generate a key for map-reduce

Parameters:

key -

Returns:

getViewResult

protected com.couchbase.client.java.view.ViewResult getViewResult()
                                                           throws Exception

Throws:

Exception

retrieveAndAggregate

protected void retrieveAndAggregate(com.couchbase.client.java.view.ViewResult viewResult)
                             throws Exception

Throws:

Exception

aggregateRow

protected void aggregateRow(AggregatorBuffer aggregatorBuffer,
                            String json)
                     throws Exception

Throws:

Exception

getJsonDocument

protected com.couchbase.client.java.document.JsonDocument getJsonDocument(com.couchbase.client.java.view.ViewRow row)