org.apache.solr.request

Class SimpleFacets

java.lang.Object

org.apache.solr.request.SimpleFacets

Direct Known Subclasses:

PivotFacetProcessor

public class SimpleFacets
extends Object

A class that generates simple Facet information for a request. More advanced facet implementations may compose or subclass this class to leverage any of its functionality.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SimpleFacets.CountPair<K extends Comparable<? super K>,V extends Comparable<? super V>> A simple key=>val pair whose natural order is such that higher vals come before lower vals.

Field Summary

Fields

Modifier and Type	Field and Description
protected DocSet	docs
protected DocSet	docsOrig The main set of documents all facet counts should be relative to
protected SimpleOrderedMap<Object>	facetResponse
protected String	facetValue
protected String	key
protected SolrParams	localParams
protected SolrParams	orig Configuration params behavior should be driven by
protected SolrParams	params
protected ResponseBuilder	rb
protected SolrQueryRequest	req
protected SolrParams	required
protected SolrIndexSearcher	searcher Searcher to use for all calculations
protected int	threads

Constructor Summary

Constructors

Constructor and Description
SimpleFacets(SolrQueryRequest req, DocSet docs, SolrParams params)
SimpleFacets(SolrQueryRequest req, DocSet docs, SolrParams params, ResponseBuilder rb)

Method Summary

Methods

Modifier and Type	Method and Description
NamedList<Object>	getFacetCounts() Looks at various Params to determining if any simple Facet Constraint count computations are desired.
NamedList<Object>	getFacetDateCounts() Deprecated. Use getFacetRangeCounts which is more generalized
void	getFacetDateCounts(String dateFacet, NamedList<Object> resOuter) Deprecated. Use getFacetRangeCounts which is more generalized
NamedList<Object>	getFacetFieldCounts() Returns a list of value constraints and the associated facet counts for each facet field specified in the params.
NamedList<Object>	getFacetIntervalCounts() Returns a NamedList with each entry having the "key" of the interval as name and the count of docs in that interval as value.
NamedList<Integer>	getFacetQueryCounts() Returns a list of facet counts for each of the facet queries specified in the params
NamedList<Object>	getFacetRangeCounts() Returns a list of value constraints and the associated facet counts for each facet numerical field, range, and interval specified in the SolrParams
NamedList<Integer>	getFacetTermEnumCounts(SolrIndexSearcher searcher, DocSet docs, String field, int offset, int limit, int mincount, boolean missing, String sort, String prefix) Returns a list of terms in the specified field along with the corresponding count of documents in the set that match that constraint.
static int	getFieldMissingCount(SolrIndexSearcher searcher, DocSet docs, String fieldName) Returns a count of the documents in the set which do not have any terms for for the specified field.
NamedList<Integer>	getGroupedCounts(SolrIndexSearcher searcher, DocSet base, String field, boolean multiToken, int offset, int limit, int mincount, boolean missing, String sort, String prefix)
int	getGroupedFacetQueryCount(Query facetQuery) Returns a grouped facet count for the facet query
protected NamedList<Integer>	getListedTermCounts(String field, DocSet base, List<String> terms) Computes the term->count counts for the specified term values relative to the
NamedList<Integer>	getTermCounts(String field) Term counts for use in field faceting that resepects the appropriate mincount
NamedList<Integer>	getTermCounts(String field, DocSet base) Term counts for use in field faceting that resepects the appropriate mincount
NamedList<Integer>	getTermCountsForPivots(String field, DocSet docs) Term counts for use in pivot faceting that resepcts the appropriate mincount
protected void	parseParams(String type, String param)
protected int	rangeCount(SchemaField sf, Date low, Date high, boolean iLow, boolean iHigh) Deprecated. Use rangeCount(SchemaField,String,String,boolean,boolean) which is more generalized
protected int	rangeCount(SchemaField sf, String low, String high, boolean iLow, boolean iHigh) Macro for getting the numDocs of range over docs

Methods inherited from class java.lang.Object

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

Field Detail

docsOrig

protected DocSet docsOrig

The main set of documents all facet counts should be relative to

orig

protected final SolrParams orig

Configuration params behavior should be driven by

searcher

protected final SolrIndexSearcher searcher

Searcher to use for all calculations

req

protected final SolrQueryRequest req

rb

protected final ResponseBuilder rb

facetResponse

protected SimpleOrderedMap<Object> facetResponse

localParams

protected SolrParams localParams

params

protected SolrParams params

required

protected SolrParams required

facetValue

protected String facetValue

docs

protected DocSet docs

key

protected String key

threads

protected int threads

Constructor Detail

SimpleFacets

public SimpleFacets(SolrQueryRequest req,
            DocSet docs,
            SolrParams params)

SimpleFacets

public SimpleFacets(SolrQueryRequest req,
            DocSet docs,
            SolrParams params,
            ResponseBuilder rb)

Method Detail

parseParams

protected void parseParams(String type,
               String param)
                    throws SyntaxError,
                           IOException

Throws:

SyntaxError

IOException

getFacetCounts

public NamedList<Object> getFacetCounts()

Looks at various Params to determining if any simple Facet Constraint count computations are desired.

Returns:

a NamedList of Facet Count info or null

See Also:

getFacetQueryCounts(), getFacetFieldCounts(), getFacetDateCounts(), getFacetRangeCounts(), getFacetIntervalCounts(), FacetParams.FACET

getFacetQueryCounts

public NamedList<Integer> getFacetQueryCounts()
                                       throws IOException,
                                              SyntaxError

Returns a list of facet counts for each of the facet queries specified in the params

Throws:

IOException

SyntaxError

See Also:

FacetParams.FACET_QUERY

getGroupedFacetQueryCount

public int getGroupedFacetQueryCount(Query facetQuery)
                              throws IOException

Returns a grouped facet count for the facet query

Throws:

IOException

See Also:

FacetParams.FACET_QUERY

getTermCountsForPivots

public NamedList<Integer> getTermCountsForPivots(String field,
                                        DocSet docs)
                                          throws IOException

Term counts for use in pivot faceting that resepcts the appropriate mincount

Throws:

IOException

See Also:

FacetParams.FACET_PIVOT_MINCOUNT

getTermCounts

public NamedList<Integer> getTermCounts(String field)
                                 throws IOException

Term counts for use in field faceting that resepects the appropriate mincount

Throws:

IOException

See Also:

FacetParams.FACET_MINCOUNT

getTermCounts

public NamedList<Integer> getTermCounts(String field,
                               DocSet base)
                                 throws IOException

Term counts for use in field faceting that resepects the appropriate mincount

Throws:

IOException

See Also:

FacetParams.FACET_MINCOUNT

getGroupedCounts

public NamedList<Integer> getGroupedCounts(SolrIndexSearcher searcher,
                                  DocSet base,
                                  String field,
                                  boolean multiToken,
                                  int offset,
                                  int limit,
                                  int mincount,
                                  boolean missing,
                                  String sort,
                                  String prefix)
                                    throws IOException

Throws:

IOException

getFacetFieldCounts

public NamedList<Object> getFacetFieldCounts()
                                      throws IOException,
                                             SyntaxError

Returns a list of value constraints and the associated facet counts for each facet field specified in the params.

Throws:

IOException

SyntaxError

See Also:

FacetParams.FACET_FIELD, getFieldMissingCount(org.apache.solr.search.SolrIndexSearcher, org.apache.solr.search.DocSet, java.lang.String), getFacetTermEnumCounts(org.apache.solr.search.SolrIndexSearcher, org.apache.solr.search.DocSet, java.lang.String, int, int, int, boolean, java.lang.String, java.lang.String)

getListedTermCounts

protected NamedList<Integer> getListedTermCounts(String field,
                                     DocSet base,
                                     List<String> terms)
                                          throws IOException

Computes the term->count counts for the specified term values relative to the

Parameters:

field - the name of the field to compute term counts against

base - the docset to compute term counts relative to

terms - a list of term values (in the specified field) to compute the counts for

Throws:

IOException

getFieldMissingCount

public static int getFieldMissingCount(SolrIndexSearcher searcher,
                       DocSet docs,
                       String fieldName)
                                throws IOException

Returns a count of the documents in the set which do not have any terms for for the specified field.

Throws:

IOException

See Also:

FacetParams.FACET_MISSING

getFacetTermEnumCounts

public NamedList<Integer> getFacetTermEnumCounts(SolrIndexSearcher searcher,
                                        DocSet docs,
                                        String field,
                                        int offset,
                                        int limit,
                                        int mincount,
                                        boolean missing,
                                        String sort,
                                        String prefix)
                                          throws IOException

Returns a list of terms in the specified field along with the corresponding count of documents in the set that match that constraint. This method uses the FilterCache to get the intersection count between docs and the DocSet for each term in the filter.

Throws:

IOException

See Also:

FacetParams.FACET_LIMIT, FacetParams.FACET_ZEROS, FacetParams.FACET_MISSING

getFacetDateCounts

@Deprecated
public NamedList<Object> getFacetDateCounts()
                                     throws IOException,
                                            SyntaxError

Deprecated. Use getFacetRangeCounts which is more generalized

Returns a list of value constraints and the associated facet counts for each facet date field, range, and interval specified in the SolrParams

Throws:

IOException

SyntaxError

See Also:

FacetParams.FACET_DATE

getFacetDateCounts

@Deprecated
public void getFacetDateCounts(String dateFacet,
                                 NamedList<Object> resOuter)
                        throws IOException,
                               SyntaxError

Deprecated. Use getFacetRangeCounts which is more generalized

Throws:

IOException

SyntaxError

getFacetRangeCounts

public NamedList<Object> getFacetRangeCounts()
                                      throws IOException,
                                             SyntaxError

Returns a list of value constraints and the associated facet counts for each facet numerical field, range, and interval specified in the SolrParams

Throws:

IOException

SyntaxError

See Also:

FacetParams.FACET_RANGE

rangeCount

protected int rangeCount(SchemaField sf,
             String low,
             String high,
             boolean iLow,
             boolean iHigh)
                  throws IOException

Macro for getting the numDocs of range over docs

Throws:

IOException

See Also:

SolrIndexSearcher.numDocs(org.apache.lucene.search.Query, org.apache.solr.search.DocSet), TermRangeQuery

rangeCount

@Deprecated
protected int rangeCount(SchemaField sf,
                        Date low,
                        Date high,
                        boolean iLow,
                        boolean iHigh)
                  throws IOException

Deprecated. Use rangeCount(SchemaField,String,String,boolean,boolean) which is more generalized

Throws:

IOException

getFacetIntervalCounts

public NamedList<Object> getFacetIntervalCounts()
                                         throws IOException,
                                                SyntaxError

Returns a NamedList with each entry having the "key" of the interval as name and the count of docs in that interval as value. All intervals added in the request are included in the returned NamedList (included those with 0 count), and it's required that the order of the intervals is deterministic and equals in all shards of a distributed request, otherwise the collation of results will fail.

Throws:

IOException

SyntaxError