org.dashbuilder.dataprovider.backend.elasticsearch.rest.impl

Class NativeClientAggregationsBuilder

java.lang.Object

org.dashbuilder.dataprovider.backend.elasticsearch.rest.impl.NativeClientAggregationsBuilder

public class NativeClientAggregationsBuilder
extends Object

Helper class for the ELS native client that provides the different AggregationBuilder's given a group operation.

Since:

0.5.0

Constructor Summary

Constructors

Constructor and Description
NativeClientAggregationsBuilder(ElasticSearchClientFactory clientFactory, IntervalBuilderDynamicDate intervalBuilder, ElasticSearchUtils utils, DataSetMetadata metadata, List<DataColumn> columns, SearchRequest request)

Method Summary

Modifier and Type	Method and Description
List<org.elasticsearch.search.aggregations.AbstractAggregationBuilder>	build(DataSetGroup groupOp)
protected boolean	existColumnInMetadataDef(String name)
protected DataColumn	getColumn(String columnId)
protected org.elasticsearch.search.aggregations.bucket.histogram.DateHistogramInterval	getInterval(DateIntervalType dateIntervalType)
protected org.elasticsearch.search.aggregations.support.ValuesSourceAggregationBuilder	serializeCoreFunction(GroupFunction groupFunction) Serializes a core function.
protected org.elasticsearch.search.aggregations.AbstractAggregationBuilder	serializeGroupByFunction(ColumnGroup columnGroup, String resultingColumnId, List<org.elasticsearch.search.aggregations.AbstractAggregationBuilder> aggregationBuilders)

Methods inherited from class java.lang.Object

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

Constructor Detail

NativeClientAggregationsBuilder

public NativeClientAggregationsBuilder(ElasticSearchClientFactory clientFactory,
                                       IntervalBuilderDynamicDate intervalBuilder,
                                       ElasticSearchUtils utils,
                                       DataSetMetadata metadata,
                                       List<DataColumn> columns,
                                       SearchRequest request)

Method Detail

build

public List<org.elasticsearch.search.aggregations.AbstractAggregationBuilder> build(DataSetGroup groupOp)
                                                                             throws ElasticSearchClientGenericException

Throws:

ElasticSearchClientGenericException

serializeCoreFunction

protected org.elasticsearch.search.aggregations.support.ValuesSourceAggregationBuilder serializeCoreFunction(GroupFunction groupFunction)

Serializes a core function.

Example of SUM function serialization:

"column_id" : { "sum" : { "field" : "change" } }

Returns:

serializeGroupByFunction

protected org.elasticsearch.search.aggregations.AbstractAggregationBuilder serializeGroupByFunction(ColumnGroup columnGroup,
                                                                                                    String resultingColumnId,
                                                                                                    List<org.elasticsearch.search.aggregations.AbstractAggregationBuilder> aggregationBuilders)
                                                                                             throws ElasticSearchClientGenericException

Throws:

ElasticSearchClientGenericException

getInterval

protected org.elasticsearch.search.aggregations.bucket.histogram.DateHistogramInterval getInterval(DateIntervalType dateIntervalType)

existColumnInMetadataDef

protected boolean existColumnInMetadataDef(String name)

getColumn

protected DataColumn getColumn(String columnId)