org.elasticsearch.search.suggest

Class SuggestUtils

java.lang.Object

org.elasticsearch.search.suggest.SuggestUtils

public final class SuggestUtils
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	SuggestUtils.Fields
static class	SuggestUtils.TokenConsumer

Field Summary

Fields

Modifier and Type	Field and Description
static Comparator<org.apache.lucene.search.spell.SuggestWord>	LUCENE_FREQUENCY
static Comparator<org.apache.lucene.search.spell.SuggestWord>	SCORE_COMPARATOR

Method Summary

Methods

Modifier and Type	Method and Description
static int	analyze(org.apache.lucene.analysis.Analyzer analyzer, org.apache.lucene.util.BytesRef toAnalyze, String field, SuggestUtils.TokenConsumer consumer, org.apache.lucene.util.CharsRefBuilder spare)
static int	analyze(org.apache.lucene.analysis.Analyzer analyzer, org.apache.lucene.util.CharsRef toAnalyze, String field, SuggestUtils.TokenConsumer consumer)
static int	analyze(org.apache.lucene.analysis.TokenStream stream, SuggestUtils.TokenConsumer consumer) NOTE: this method closes the TokenStream, even on exception, which is awkward because really the caller who called Analyzer.tokenStream(java.lang.String, java.io.Reader) should close it, but when trying that there are recursion issues when we try to use the same TokenStrem twice in the same recursion...
static org.apache.lucene.search.spell.DirectSpellChecker	getDirectSpellChecker(DirectSpellcheckerSettings suggestion)
static ShingleTokenFilterFactory.Factory	getShingleFilterFactory(org.apache.lucene.analysis.Analyzer analyzer)
static org.apache.lucene.util.BytesRef	join(org.apache.lucene.util.BytesRef separator, org.apache.lucene.util.BytesRefBuilder result, org.apache.lucene.util.BytesRef... toJoin)
static boolean	parseDirectSpellcheckerSettings(XContentParser parser, String fieldName, DirectSpellcheckerSettings suggestion, ParseFieldMatcher parseFieldMatcher)
static boolean	parseSuggestContext(XContentParser parser, MapperService mapperService, String fieldName, SuggestionSearchContext.SuggestionContext suggestion, ParseFieldMatcher parseFieldMatcher)
static org.apache.lucene.search.spell.StringDistance	resolveDistance(String distanceVal)
static Suggest.Suggestion.Sort	resolveSort(String sortVal)
static org.apache.lucene.search.spell.SuggestMode	resolveSuggestMode(String suggestMode)
static void	verifySuggestion(MapperService mapperService, org.apache.lucene.util.BytesRef globalText, SuggestionSearchContext.SuggestionContext suggestion)

Methods inherited from class java.lang.Object

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

Field Detail

LUCENE_FREQUENCY

public static final Comparator<org.apache.lucene.search.spell.SuggestWord> LUCENE_FREQUENCY

SCORE_COMPARATOR

public static final Comparator<org.apache.lucene.search.spell.SuggestWord> SCORE_COMPARATOR

Method Detail

getDirectSpellChecker

public static org.apache.lucene.search.spell.DirectSpellChecker getDirectSpellChecker(DirectSpellcheckerSettings suggestion)

join

public static org.apache.lucene.util.BytesRef join(org.apache.lucene.util.BytesRef separator,
                                   org.apache.lucene.util.BytesRefBuilder result,
                                   org.apache.lucene.util.BytesRef... toJoin)

analyze

public static int analyze(org.apache.lucene.analysis.Analyzer analyzer,
          org.apache.lucene.util.BytesRef toAnalyze,
          String field,
          SuggestUtils.TokenConsumer consumer,
          org.apache.lucene.util.CharsRefBuilder spare)
                   throws IOException

Throws:

IOException

analyze

public static int analyze(org.apache.lucene.analysis.Analyzer analyzer,
          org.apache.lucene.util.CharsRef toAnalyze,
          String field,
          SuggestUtils.TokenConsumer consumer)
                   throws IOException

Throws:

IOException

analyze

public static int analyze(org.apache.lucene.analysis.TokenStream stream,
          SuggestUtils.TokenConsumer consumer)
                   throws IOException

NOTE: this method closes the TokenStream, even on exception, which is awkward because really the caller who called Analyzer.tokenStream(java.lang.String, java.io.Reader) should close it, but when trying that there are recursion issues when we try to use the same TokenStrem twice in the same recursion...

Throws:

IOException

resolveSuggestMode

public static org.apache.lucene.search.spell.SuggestMode resolveSuggestMode(String suggestMode)

resolveSort

public static Suggest.Suggestion.Sort resolveSort(String sortVal)

resolveDistance

public static org.apache.lucene.search.spell.StringDistance resolveDistance(String distanceVal)

parseDirectSpellcheckerSettings

public static boolean parseDirectSpellcheckerSettings(XContentParser parser,
                                      String fieldName,
                                      DirectSpellcheckerSettings suggestion,
                                      ParseFieldMatcher parseFieldMatcher)
                                               throws IOException

Throws:

IOException

parseSuggestContext

public static boolean parseSuggestContext(XContentParser parser,
                          MapperService mapperService,
                          String fieldName,
                          SuggestionSearchContext.SuggestionContext suggestion,
                          ParseFieldMatcher parseFieldMatcher)
                                   throws IOException

Throws:

IOException

verifySuggestion

public static void verifySuggestion(MapperService mapperService,
                    org.apache.lucene.util.BytesRef globalText,
                    SuggestionSearchContext.SuggestionContext suggestion)

getShingleFilterFactory

public static ShingleTokenFilterFactory.Factory getShingleFilterFactory(org.apache.lucene.analysis.Analyzer analyzer)