org.apache.solr.analytics

Class AnalyticsGroupingManager

java.lang.Object

org.apache.solr.analytics.AnalyticsGroupingManager

public class AnalyticsGroupingManager
extends Object

The manager for faceted analytics. This class manages one grouping of facets and expressions to compute over those facets.

This class will only manage generating faceted results, not overall results.

Constructor Summary

Constructors

Constructor and Description
AnalyticsGroupingManager(String name, ReductionCollectionManager reductionCollectionManager, Collection<AnalyticsExpression> topLevelExpressions)

Method Summary

Modifier and Type	Method and Description
void	addFacet(AnalyticsFacet facet) Add a facet to the grouping.
NamedList<Object>	createOldResponse(Map<String,Object> overallResults) Create the response for this grouping, but in the old style of response.
Map<String,Object>	createResponse() Create the response for this grouping, a mapping from each of it's facets' names to the facet's response.
void	exportShardData(DataOutput output) Export the shard data for this grouping through a bit-stream, to be imported by the importShardData(java.io.DataInput) method in the originating shard.
void	getFacetExecuters(Filter filter, SolrQueryRequest queryRequest, Consumer<AbstractSolrQueryFacet.FacetValueQueryExecuter> cons) Create the AbstractSolrQueryFacet.FacetValueQueryExecuters for all AbstractSolrQueryFacets (e.g.
String	getName() Get the name of the grouping.
ReductionCollectionManager	getReductionManager() Get the ReductionCollectionManager that manages the collection of reduction data for the expressions contained within this grouping.
boolean	getStreamingFacets(Consumer<StreamingFacet> cons) Get the StreamingFacets (e.g.
void	importShardData(DataInput input) Import the shard data for this grouping from a bit-stream, exported by the exportShardData(java.io.DataOutput) method in the each of the collection's shards.

Methods inherited from class java.lang.Object

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

Constructor Detail

AnalyticsGroupingManager

public AnalyticsGroupingManager(String name,
                                ReductionCollectionManager reductionCollectionManager,
                                Collection<AnalyticsExpression> topLevelExpressions)

Method Detail

getStreamingFacets

public boolean getStreamingFacets(Consumer<StreamingFacet> cons)

Get the StreamingFacets (e.g. ValueFacet and PivotFacet) contained within this grouping, returning them through the given consumer.

Parameters:

cons - where the streaming facets are passed to

Returns:

whether the grouping contains streaming facets

getFacetExecuters

public void getFacetExecuters(Filter filter,
                              SolrQueryRequest queryRequest,
                              Consumer<AbstractSolrQueryFacet.FacetValueQueryExecuter> cons)

Create the AbstractSolrQueryFacet.FacetValueQueryExecuters for all AbstractSolrQueryFacets (e.g. QueryFacet and RangeFacet) contained within this grouping. The executers are returned through the given consumer.

One AbstractSolrQueryFacet.FacetValueQueryExecuter is created for each facet value to be returned for a facet. Since every AbstractSolrQueryFacet has discrete and user-defined facet values, unlike StreamingFacets, a discrete number of AbstractSolrQueryFacet.FacetValueQueryExecuters are created and returned.

Parameters:

filter - representing the overall Solr Query of the request, will be combined with the facet value queries

queryRequest - from the overall search request

cons - where the executers are passed to

addFacet

public void addFacet(AnalyticsFacet facet)

Add a facet to the grouping. All expressions in this grouping will be computed over the facet.

Parameters:

facet - to compute expressions over

importShardData

public void importShardData(DataInput input)
                     throws IOException

Import the shard data for this grouping from a bit-stream, exported by the exportShardData(java.io.DataOutput) method in the each of the collection's shards.

Parameters:

input - The bit-stream to import the grouping data from

Throws:

IOException - if an exception occurs while reading from the DataInput

exportShardData

public void exportShardData(DataOutput output)
                     throws IOException

Export the shard data for this grouping through a bit-stream, to be imported by the importShardData(java.io.DataInput) method in the originating shard.

Parameters:

output - The bit-stream to output the grouping data through

Throws:

IOException - if an exception occurs while writing to the DataOutput

getReductionManager

public ReductionCollectionManager getReductionManager()

Get the ReductionCollectionManager that manages the collection of reduction data for the expressions contained within this grouping.

Returns:

the grouping's reduction manager

createResponse

public Map<String,Object> createResponse()

Create the response for this grouping, a mapping from each of it's facets' names to the facet's response.

Returns:

the named list representation of the response

createOldResponse

public NamedList<Object> createOldResponse(Map<String,Object> overallResults)

Create the response for this grouping, but in the old style of response. This response has a bucket for the following if they are contained in the grouping: FieldFacets, RangeFacets and QueryFacets. Each facet's name and response are put into the bucket corresponding to its type.

Since groupings in the old notation must also return overall results, the overall results are passed in and the values are used to populate the grouping response.

Parameters:

overallResults - of the expressions to add to the grouping response

Returns:

the named list representation of the response

getName

public String getName()

Get the name of the grouping.

Returns:

the grouping name