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Analysis: Add additional Analyzers, Tokenizers, and TokenFilters from Lucene 

Add `irish` analyzer
Add `sorani` analyzer (Kurdish)

Add `classic` tokenizer: specific to english text and tries to recognize hostnames, companies, acronyms, etc.
Add `thai` tokenizer: segments thai text into words.

Add `classic` tokenfilter: cleans up acronyms and possessives from classic tokenizer
Add `apostrophe` tokenfilter: removes text after apostrophe and the apostrophe itself
Add `german_normalization` tokenfilter: umlaut/sharp S normalization
Add `hindi_normalization` tokenfilter: accounts for hindi spelling differences
Add `indic_normalization` tokenfilter: accounts for different unicode representations in Indian languages
Add `sorani_normalization` tokenfilter: normalizes kurdish text
Add `scandinavian_normalization` tokenfilter: normalizes Norwegian, Danish, Swedish text
Add `scandinavian_folding` tokenfilter: much more aggressive form of `scandinavian_normalization`
Add additional languages to stemmer tokenfilter: `galician`, `minimal_galician`, `irish`, `sorani`, `light_nynorsk`, `minimal_nynorsk`

Add support access to default Thai stopword set "_thai_"

Fix some bugs and broken links in documentation.

Closes #5935
This commit is contained in:
Robert Muir 2014-07-02 14:59:18 -04:00
parent 9ddfaf3aaf
commit b9a09c2b06
28 changed files with 964 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

238
docs/reference/analysis/analyzers/lang-analyzer.asciidoc
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@ -23,12 +23,14 @@ following types are supported:
<<hindi-analyzer,`hindi`>>,
<<hungarian-analyzer,`hungarian`>>,
<<indonesian-analyzer,`indonesian`>>,
<<irish-analyzer,`irish`>>,
<<italian-analyzer,`italian`>>,
<<norwegian-analyzer,`norwegian`>>,
<<persian-analyzer,`persian`>>,
<<portuguese-analyzer,`portuguese`>>,
<<romanian-analyzer,`romanian`>>,
<<russian-analyzer,`russian`>>,
<<sorani-analyzer,`sorani`>>,
<<spanish-analyzer,`spanish`>>,
<<swedish-analyzer,`swedish`>>,
<<turkish-analyzer,`turkish`>>,
@ -42,8 +44,8 @@ more details.
The following analyzers support setting custom `stem_exclusion` list:
`arabic`, `armenian`, `basque`, `catalan`, `bulgarian`, `catalan`,
`czech`, `finnish`, `dutch`, `english`, `finnish`, `french`, `galician`,
`german`, `hindi`, `hungarian`, `indonesian`, `italian`, `norwegian`,
`portuguese`, `romanian`, `russian`, `spanish`, `swedish`, `turkish`.
`german`, `irish`, `hindi`, `hungarian`, `indonesian`, `italian`, `norwegian`,
`portuguese`, `romanian`, `russian`, `sorani`, `spanish`, `swedish`, `turkish`.
[[arabic-analyzer]]
==== `arabic` analyzer
@ -720,7 +722,7 @@ The `german` analyzer could be reimplemented as a `custom` analyzer as follows:
"lowercase",
"german_stop",
"german_keywords",
"ascii_folding", <3>
"german_normalization",
"german_stemmer"
]
}
@ -733,9 +735,6 @@ The `german` analyzer could be reimplemented as a `custom` analyzer as follows:
or `stopwords_path` parameters.
<2> Words can be excluded from stemming with the `stem_exclusion`
parameter.
<3> The `german` analyzer actually uses the GermanNormalizationFilter,
which isn't exposed in Elasticsearch. The `ascii_folding` filter
does a similar job but is more extensive.
[[greek-analyzer]]
==== `greek` analyzer
@ -752,6 +751,10 @@ The `greek` analyzer could be reimplemented as a `custom` analyzer as follows:
"type": "stop",
"stopwords": "_greek_" <1>
},
"greek_lowercase": {
"type": "lowercase",
"language": "greek"
},
"greek_keywords": {
"type": "keyword_marker",
"keywords": [] <2>
@ -765,7 +768,7 @@ The `greek` analyzer could be reimplemented as a `custom` analyzer as follows:
"greek": {
"tokenizer": "standard",
"filter": [
"lowercase",
"greek_lowercase",
"greek_stop",
"greek_keywords",
"greek_stemmer"
@ -784,9 +787,48 @@ The `greek` analyzer could be reimplemented as a `custom` analyzer as follows:
[[hindi-analyzer]]
==== `hindi` analyzer
The `hindi` analyzer cannot currently be implemented as a `custom` analyzer
as it depends on the IndicNormalizationFilter and HindiNormalizationFilter
which are not yet exposed by Elasticsearch. Instead, see the <<analysis-icu-plugin>>.
The `hindi` analyzer could be reimplemented as a `custom` analyzer as follows:
[source,js]
----------------------------------------------------
{
"settings": {
"analysis": {
"filter": {
"hindi_stop": {
"type": "stop",
"stopwords": "_hindi_" <1>
},
"hindi_keywords": {
"type": "keyword_marker",
"keywords": [] <2>
},
"hindi_stemmer": {
"type": "stemmer",
"language": "hindi"
}
},
"analyzer": {
"hindi": {
"tokenizer": "standard",
"filter": [
"lowercase",
"indic_normalization",
"hindi_normalization",
"hindi_stop",
"hindi_keywords",
"hindi_stemmer"
]
}
}
}
}
}
----------------------------------------------------
<1> The default stopwords can be overridden with the `stopwords`
or `stopwords_path` parameters.
<2> Words can be excluded from stemming with the `stem_exclusion`
parameter.
[[hungarian-analyzer]]
==== `hungarian` analyzer
@ -877,6 +919,59 @@ The `indonesian` analyzer could be reimplemented as a `custom` analyzer as follo
<2> Words can be excluded from stemming with the `stem_exclusion`
parameter.
[[irish-analyzer]]
==== `irish` analyzer
The `irish` analyzer could be reimplemented as a `custom` analyzer as follows:
[source,js]
----------------------------------------------------
{
"settings": {
"analysis": {
"filter": {
"irish_elision": {
"type": "elision",
"articles": [ "h", "n", "t" ]
},
"irish_stop": {
"type": "stop",
"stopwords": "_irish_" <1>
},
"irish_lowercase": {
"type": "lowercase",
"language": "irish"
},
"irish_keywords": {
"type": "keyword_marker",
"keywords": [] <2>
},
"irish_stemmer": {
"type": "stemmer",
"language": "irish"
}
},
"analyzer": {
"irish": {
"tokenizer": "standard",
"filter": [
"irish_stop",
"irish_elision",
"irish_lowercase",
"irish_keywords",
"irish_stemmer"
]
}
}
}
}
}
----------------------------------------------------
<1> The default stopwords can be overridden with the `stopwords`
or `stopwords_path` parameters.
<2> Words can be excluded from stemming with the `stem_exclusion`
parameter.
[[italian-analyzer]]
==== `italian` analyzer
@ -1150,6 +1245,51 @@ The `russian` analyzer could be reimplemented as a `custom` analyzer as follows:
<2> Words can be excluded from stemming with the `stem_exclusion`
parameter.
[[sorani-analyzer]]
==== `sorani` analyzer
The `sorani` analyzer could be reimplemented as a `custom` analyzer as follows:
[source,js]
----------------------------------------------------
{
"settings": {
"analysis": {
"filter": {
"sorani_stop": {
"type": "stop",
"stopwords": "_sorani_" <1>
},
"sorani_keywords": {
"type": "keyword_marker",
"keywords": [] <2>
},
"sorani_stemmer": {
"type": "stemmer",
"language": "sorani"
}
},
"analyzer": {
"sorani": {
"tokenizer": "standard",
"filter": [
"sorani_normalization",
"lowercase",
"sorani_stop",
"sorani_keywords",
"sorani_stemmer"
]
}
}
}
}
}
----------------------------------------------------
<1> The default stopwords can be overridden with the `stopwords`
or `stopwords_path` parameters.
<2> Words can be excluded from stemming with the `stem_exclusion`
parameter.
[[spanish-analyzer]]
==== `spanish` analyzer
@ -1241,14 +1381,80 @@ The `swedish` analyzer could be reimplemented as a `custom` analyzer as follows:
[[turkish-analyzer]]
==== `turkish` analyzer
The `turkish` analyzer cannot currently be implemented as a `custom` analyzer
because it depends on the TurkishLowerCaseFilter and the ApostropheFilter
which are not exposed in Elasticsearch. Instead, see the <<analysis-icu-plugin>>.
The `turkish` analyzer could be reimplemented as a `custom` analyzer as follows:
[source,js]
----------------------------------------------------
{
"settings": {
"analysis": {
"filter": {
"turkish_stop": {
"type": "stop",
"stopwords": "_turkish_" <1>
},
"turkish_lowercase": {
"type": "lowercase",
"language": "turkish"
},
"turkish_keywords": {
"type": "keyword_marker",
"keywords": [] <2>
},
"turkish_stemmer": {
"type": "stemmer",
"language": "turkish"
}
},
"analyzer": {
"turkish": {
"tokenizer": "standard",
"filter": [
"apostrophe",
"turkish_lowercase",
"turkish_stop",
"turkish_keywords",
"turkish_stemmer"
]
}
}
}
}
}
----------------------------------------------------
<1> The default stopwords can be overridden with the `stopwords`
or `stopwords_path` parameters.
<2> Words can be excluded from stemming with the `stem_exclusion`
parameter.
[[thai-analyzer]]
==== `thai` analyzer
The `thai` analyzer cannot currently be implemented as a `custom` analyzer
because it depends on the ThaiTokenizer which is not exposed in Elasticsearch.
Instead, see the <<analysis-icu-plugin>>.
The `thai` analyzer could be reimplemented as a `custom` analyzer as follows:
[source,js]
----------------------------------------------------
{
"settings": {
"analysis": {
"filter": {
"thai_stop": {
"type": "stop",
"stopwords": "_thai_" <1>
}
},
"analyzer": {
"thai": {
"tokenizer": "thai",
"filter": [
"lowercase",
"thai_stop"
]
}
}
}
}
}
----------------------------------------------------
<1> The default stopwords can be overridden with the `stopwords`
or `stopwords_path` parameters.

4
docs/reference/analysis/tokenfilters.asciidoc
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@ -78,3 +78,7 @@ include::tokenfilters/cjk-bigram-tokenfilter.asciidoc[]
include::tokenfilters/delimited-payload-tokenfilter.asciidoc[]
include::tokenfilters/keep-words-tokenfilter.asciidoc[]
include::tokenfilters/classic-tokenfilter.asciidoc[]
include::tokenfilters/apostrophe-tokenfilter.asciidoc[]

7
docs/reference/analysis/tokenfilters/apostrophe-tokenfilter.asciidoc Normal file
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@ -0,0 +1,7 @@
[[analysis-apostrophe-tokenfilter]]
=== Apostrophe Token Filter
coming[1.3.0]
The `apostrophe` token filter strips all characters after an apostrophe,
including the apostrophe itself.

11
docs/reference/analysis/tokenfilters/classic-tokenfilter.asciidoc Normal file
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@ -0,0 +1,11 @@
[[analysis-classic-tokenfilter]]
=== Classic Token Filter
coming[1.3.0]
The `classic` token filter does optional post-processing of
terms that are generated by the <<analysis-classic-tokenizer,`classic` tokenizer>>.
This filter removes the english possessive from the end of words, and
it removes dots from acronyms.

2
docs/reference/analysis/tokenfilters/lowercase-tokenfilter.asciidoc
View File

@ -4,7 +4,7 @@
A token filter of type `lowercase` that normalizes token text to lower
case.
Lowercase token filter supports Greek and Turkish lowercase token
Lowercase token filter supports Greek, Irish coming[1.3.0], and Turkish lowercase token
filters through the `language` parameter. Below is a usage example in a
custom analyzer

37
docs/reference/analysis/tokenfilters/normalization-tokenfilter.asciidoc
View File

@ -4,12 +4,33 @@
There are several token filters available which try to normalize special
characters of a certain language.
You can currently choose between `arabic_normalization` and
`persian_normalization` normalization in your token filter
configuration. For more information check the
http://lucene.apache.org/core/4_3_1/analyzers-common/org/apache/lucene/analysis/ar/ArabicNormalizer.html[ArabicNormalizer]
or the
http://lucene.apache.org/core/4_3_1/analyzers-common/org/apache/lucene/analysis/fa/PersianNormalizer.html[PersianNormalizer]
documentation.
[horizontal]
Arabic::
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/ar/ArabicNormalizer.html[`arabic_normalization`]
German::
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/de/GermanNormalizationFilter.html[`german_normalization`] coming[1.3.0]
Hindi::
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/hi/HindiNormalizer.html[`hindi_normalization`] coming[1.3.0]
Indic::
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/in/IndicNormalizer.html[`indic_normalization`] coming[1.3.0]
Kurdish (Sorani)::
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/ckb/SoraniNormalizer.html[`sorani_normalization`] coming[1.3.0]
Persian::
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/fa/PersianNormalizer.html[`persian_normalization`]
Scandinavian::
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/miscellaneous/ScandinavianNormalizationFilter.html[`scandinavian_normalization`] coming[1.3.0]
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/miscellaneous/ScandinavianFoldingFilter.html[`scandinavian_folding`] coming[1.3.0]
*Note:* These filters are available since `0.90.2`

32
docs/reference/analysis/tokenfilters/stemmer-tokenfilter.asciidoc
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@ -32,7 +32,7 @@ available values (the preferred filters are marked in *bold*):
[horizontal]
Arabic::
http://lucene.apache.org/core/4_3_0/analyzers-common/index.html?org%2Fapache%2Flucene%2Fanalysis%2Far%2FArabicStemmer.html[*`arabic`*]
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/ar/ArabicStemmer.html[*`arabic`*]
Armenian::
@ -44,7 +44,7 @@ http://snowball.tartarus.org/algorithms/basque/stemmer.html[*`basque`*]
Brazilian Portuguese::
http://lucene.apache.org/core/4_3_0/analyzers-common/index.html?org%2Fapache%2Flucene%2Fanalysis%2Fbr%2FBrazilianStemmer.html[*`brazilian`*]
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/br/BrazilianStemmer.html[*`brazilian`*]
Bulgarian::
@ -72,7 +72,7 @@ English::
http://snowball.tartarus.org/algorithms/porter/stemmer.html[*`english`*] coming[1.3.0,Returns the <<analysis-porterstem-tokenfilter,`porter_stem`>> instead of the <<analysis-snowball-tokenfilter,`english` Snowball token filter>>],
http://ciir.cs.umass.edu/pubfiles/ir-35.pdf[`light_english`] coming[1.3.0,Returns the <<analysis-kstem-tokenfilter,`kstem` token filter>>],
http://www.medialab.tfe.umu.se/courses/mdm0506a/material/fulltext_ID%3D10049387%26PLACEBO%3DIE.pdf[`minimal_english`],
http://lucene.apache.org/core/4_3_0/analyzers-common/index.html?org%2Fapache%2Flucene%2Fanalysis%2Fen%2FEnglishPossessiveFilter.html[`possessive_english`],
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/en/EnglishPossessiveFilter.html[`possessive_english`],
http://snowball.tartarus.org/algorithms/english/stemmer.html[`porter2`] coming[1.3.0,Returns the <<analysis-snowball-tokenfilter,`english` Snowball token filter>> instead of the <<analysis-snowball-tokenfilter,`porter` Snowball token filter>>],
http://snowball.tartarus.org/algorithms/lovins/stemmer.html[`lovins`]
@ -87,6 +87,11 @@ http://snowball.tartarus.org/algorithms/french/stemmer.html[`french`],
http://dl.acm.org/citation.cfm?id=1141523[*`light_french`*],
http://dl.acm.org/citation.cfm?id=318984[`minimal_french`]
Galician::
http://bvg.udc.es/recursos_lingua/stemming.jsp[*`galician`*] coming[1.3.0],
http://bvg.udc.es/recursos_lingua/stemming.jsp[`minimal_galician`] (Plural step only) coming[1.3.0]
German::
http://snowball.tartarus.org/algorithms/german/stemmer.html[`german`],
@ -111,19 +116,33 @@ Indonesian::
http://www.illc.uva.nl/Publications/ResearchReports/MoL-2003-02.text.pdf[*`indonesian`*]
Irish::
http://snowball.tartarus.org/otherapps/oregan/intro.html[*`irish`*]
Italian::
http://snowball.tartarus.org/algorithms/italian/stemmer.html[`italian`],
http://www.ercim.eu/publication/ws-proceedings/CLEF2/savoy.pdf[*`light_italian`*]
Kurdish (Sorani)::
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/ckb/SoraniStemmer.html[*`sorani`*] coming[1.3.0]
Latvian::
http://lucene.apache.org/core/4_3_0/analyzers-common/index.html?org%2Fapache%2Flucene%2Fanalysis%2Flv%2FLatvianStemmer.html[*`latvian`*]
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/lv/LatvianStemmer.html[*`latvian`*]
Norwegian::
Norwegian (Bokmål)::
http://snowball.tartarus.org/algorithms/norwegian/stemmer.html[*`norwegian`*],
http://lucene.apache.org/core/4_3_0/analyzers-common/index.html?org%2Fapache%2Flucene%2Fanalysis%2Fno%2FNorwegianMinimalStemFilter.html[`minimal_norwegian`]
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/no/NorwegianLightStemmer.html[*`light_norwegian`*] coming[1.3.0]
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/no/NorwegianMinimalStemmer.html[`minimal_norwegian`]
Norwegian (Nynorsk)::
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/no/NorwegianLightStemmer.html[*`light_nynorsk`*] coming[1.3.0]
http://lucene.apache.org/core/4_9_0/analyzers-common/org/apache/lucene/analysis/no/NorwegianMinimalStemmer.html[`minimal_nynorsk`] coming[1.3.0]
Portuguese::
@ -132,7 +151,6 @@ http://dl.acm.org/citation.cfm?id=1141523&dl=ACM&coll=DL&CFID=179095584&CFTOKEN=
http://www.inf.ufrgs.br/\~buriol/papers/Orengo_CLEF07.pdf[`minimal_portuguese`],
http://www.inf.ufrgs.br/\~viviane/rslp/index.htm[`portuguese_rslp`] coming[1.3.0]
Romanian::
http://snowball.tartarus.org/algorithms/romanian/stemmer.html[*`romanian`*]

4
docs/reference/analysis/tokenizers.asciidoc
View File

@ -28,3 +28,7 @@ include::tokenizers/uaxurlemail-tokenizer.asciidoc[]
include::tokenizers/pathhierarchy-tokenizer.asciidoc[]
include::tokenizers/classic-tokenizer.asciidoc[]
include::tokenizers/thai-tokenizer.asciidoc[]

21
docs/reference/analysis/tokenizers/classic-tokenizer.asciidoc Normal file
View File

@ -0,0 +1,21 @@
[[analysis-classic-tokenizer]]
=== Classic Tokenizer
coming[1.3.0]
A tokenizer of type `classic` providing grammar based tokenizer that is
a good tokenizer for English language documents. This tokenizer has
heuristics for special treatment of acronyms, company names, email addresses,
and internet host names. However, these rules don't always work, and
the tokenizer doesn't work well for most languages other than English.
The following are settings that can be set for a `classic` tokenizer
type:
[cols="<,<",options="header",]
|=======================================================================
|Setting |Description
|`max_token_length` |The maximum token length. If a token is seen that
exceeds this length then it is discarded. Defaults to `255`.
|=======================================================================

9
docs/reference/analysis/tokenizers/thai-tokenizer.asciidoc Normal file
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@ -0,0 +1,9 @@
[[analysis-thai-tokenizer]]
=== Thai Tokenizer
coming[1.3.0]
A tokenizer of type `thai` that segments Thai text into words. This tokenizer
uses the built-in Thai segmentation algorithm included with Java to divide
up Thai text. Text in other languages in general will be treated the same
as `standard`.

6
src/main/java/org/elasticsearch/index/analysis/Analysis.java
View File

@ -28,6 +28,7 @@ import org.apache.lucene.analysis.ar.ArabicAnalyzer;
import org.apache.lucene.analysis.bg.BulgarianAnalyzer;
import org.apache.lucene.analysis.br.BrazilianAnalyzer;
import org.apache.lucene.analysis.ca.CatalanAnalyzer;
import org.apache.lucene.analysis.ckb.SoraniAnalyzer;
import org.apache.lucene.analysis.cz.CzechAnalyzer;
import org.apache.lucene.analysis.da.DanishAnalyzer;
import org.apache.lucene.analysis.de.GermanAnalyzer;
@ -38,6 +39,7 @@ import org.apache.lucene.analysis.eu.BasqueAnalyzer;
import org.apache.lucene.analysis.fa.PersianAnalyzer;
import org.apache.lucene.analysis.fi.FinnishAnalyzer;
import org.apache.lucene.analysis.fr.FrenchAnalyzer;
import org.apache.lucene.analysis.ga.IrishAnalyzer;
import org.apache.lucene.analysis.gl.GalicianAnalyzer;
import org.apache.lucene.analysis.hi.HindiAnalyzer;
import org.apache.lucene.analysis.hu.HungarianAnalyzer;
@ -50,6 +52,7 @@ import org.apache.lucene.analysis.pt.PortugueseAnalyzer;
import org.apache.lucene.analysis.ro.RomanianAnalyzer;
import org.apache.lucene.analysis.ru.RussianAnalyzer;
import org.apache.lucene.analysis.sv.SwedishAnalyzer;
import org.apache.lucene.analysis.th.ThaiAnalyzer;
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
import org.apache.lucene.analysis.tr.TurkishAnalyzer;
import org.apache.lucene.analysis.util.CharArraySet;
@ -134,14 +137,17 @@ public class Analysis {
.put("_hindi_", HindiAnalyzer.getDefaultStopSet())
.put("_hungarian_", HungarianAnalyzer.getDefaultStopSet())
.put("_indonesian_", IndonesianAnalyzer.getDefaultStopSet())
.put("_irish_", IrishAnalyzer.getDefaultStopSet())
.put("_italian_", ItalianAnalyzer.getDefaultStopSet())
.put("_norwegian_", NorwegianAnalyzer.getDefaultStopSet())
.put("_persian_", PersianAnalyzer.getDefaultStopSet())
.put("_portuguese_", PortugueseAnalyzer.getDefaultStopSet())
.put("_romanian_", RomanianAnalyzer.getDefaultStopSet())
.put("_russian_", RussianAnalyzer.getDefaultStopSet())
.put("_sorani_", SoraniAnalyzer.getDefaultStopSet())
.put("_spanish_", SpanishAnalyzer.getDefaultStopSet())
.put("_swedish_", SwedishAnalyzer.getDefaultStopSet())
.put("_thai_", ThaiAnalyzer.getDefaultStopSet())
.put("_turkish_", TurkishAnalyzer.getDefaultStopSet())
.immutableMap();

13
src/main/java/org/elasticsearch/index/analysis/AnalysisModule.java
View File

@ -503,11 +503,20 @@ public class AnalysisModule extends AbstractModule {
tokenFiltersBindings.processTokenFilter("stemmer_override", StemmerOverrideTokenFilterFactory.class);
tokenFiltersBindings.processTokenFilter("arabic_normalization", ArabicNormalizationFilterFactory.class);
tokenFiltersBindings.processTokenFilter("german_normalization", GermanNormalizationFilterFactory.class);
tokenFiltersBindings.processTokenFilter("hindi_normalization", HindiNormalizationFilterFactory.class);
tokenFiltersBindings.processTokenFilter("indic_normalization", IndicNormalizationFilterFactory.class);
tokenFiltersBindings.processTokenFilter("sorani_normalization", SoraniNormalizationFilterFactory.class);
tokenFiltersBindings.processTokenFilter("persian_normalization", PersianNormalizationFilterFactory.class);
tokenFiltersBindings.processTokenFilter("scandinavian_normalization", ScandinavianNormalizationFilterFactory.class);
tokenFiltersBindings.processTokenFilter("scandinavian_folding", ScandinavianFoldingFilterFactory.class);
tokenFiltersBindings.processTokenFilter("hunspell", HunspellTokenFilterFactory.class);
tokenFiltersBindings.processTokenFilter("cjk_bigram", CJKBigramFilterFactory.class);
tokenFiltersBindings.processTokenFilter("cjk_width", CJKWidthFilterFactory.class);
tokenFiltersBindings.processTokenFilter("apostrophe", ApostropheFilterFactory.class);
tokenFiltersBindings.processTokenFilter("classic", ClassicFilterFactory.class);
}
@ -515,6 +524,8 @@ public class AnalysisModule extends AbstractModule {
@Override
public void processTokenizers(TokenizersBindings tokenizersBindings) {
tokenizersBindings.processTokenizer("pattern", PatternTokenizerFactory.class);
tokenizersBindings.processTokenizer("classic", ClassicTokenizerFactory.class);
tokenizersBindings.processTokenizer("thai", ThaiTokenizerFactory.class);
}
@Override
@ -542,6 +553,7 @@ public class AnalysisModule extends AbstractModule {
analyzersBindings.processAnalyzer("hindi", HindiAnalyzerProvider.class);
analyzersBindings.processAnalyzer("hungarian", HungarianAnalyzerProvider.class);
analyzersBindings.processAnalyzer("indonesian", IndonesianAnalyzerProvider.class);
analyzersBindings.processAnalyzer("irish", IrishAnalyzerProvider.class);
analyzersBindings.processAnalyzer("italian", ItalianAnalyzerProvider.class);
analyzersBindings.processAnalyzer("latvian", LatvianAnalyzerProvider.class);
analyzersBindings.processAnalyzer("norwegian", NorwegianAnalyzerProvider.class);
@ -549,6 +561,7 @@ public class AnalysisModule extends AbstractModule {
analyzersBindings.processAnalyzer("portuguese", PortugueseAnalyzerProvider.class);
analyzersBindings.processAnalyzer("romanian", RomanianAnalyzerProvider.class);
analyzersBindings.processAnalyzer("russian", RussianAnalyzerProvider.class);
analyzersBindings.processAnalyzer("sorani", SoraniAnalyzerProvider.class);
analyzersBindings.processAnalyzer("spanish", SpanishAnalyzerProvider.class);
analyzersBindings.processAnalyzer("swedish", SwedishAnalyzerProvider.class);
analyzersBindings.processAnalyzer("turkish", TurkishAnalyzerProvider.class);

44
src/main/java/org/elasticsearch/index/analysis/ApostropheFilterFactory.java Normal file
View File

@ -0,0 +1,44 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.tr.ApostropheFilter;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Factory for {@link ApostropheFilter}
*/
public class ApostropheFilterFactory extends AbstractTokenFilterFactory {
@Inject
public ApostropheFilterFactory(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
}
@Override
public TokenStream create(TokenStream tokenStream) {
return new ApostropheFilter(tokenStream);
}
}

44
src/main/java/org/elasticsearch/index/analysis/ClassicFilterFactory.java Normal file
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@ -0,0 +1,44 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.standard.ClassicFilter;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Factory for {@link ClassicFilter}
*/
public class ClassicFilterFactory extends AbstractTokenFilterFactory {
@Inject
public ClassicFilterFactory(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
}
@Override
public TokenStream create(TokenStream tokenStream) {
return new ClassicFilter(tokenStream);
}
}

52
src/main/java/org/elasticsearch/index/analysis/ClassicTokenizerFactory.java Normal file
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@ -0,0 +1,52 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.standard.ClassicTokenizer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
import java.io.Reader;
/**
* Factory for {@link ClassicTokenizer}
*/
public class ClassicTokenizerFactory extends AbstractTokenizerFactory {
private final int maxTokenLength;
@Inject
public ClassicTokenizerFactory(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
maxTokenLength = settings.getAsInt("max_token_length", StandardAnalyzer.DEFAULT_MAX_TOKEN_LENGTH);
}
@Override
public Tokenizer create(Reader reader) {
ClassicTokenizer tokenizer = new ClassicTokenizer(version, reader);
tokenizer.setMaxTokenLength(maxTokenLength);
return tokenizer;
}
}

44
src/main/java/org/elasticsearch/index/analysis/GermanNormalizationFilterFactory.java Normal file
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@ -0,0 +1,44 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.de.GermanNormalizationFilter;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Factory for {@link GermanNormalizationFilter}
*/
public class GermanNormalizationFilterFactory extends AbstractTokenFilterFactory {
@Inject
public GermanNormalizationFilterFactory(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
}
@Override
public TokenStream create(TokenStream tokenStream) {
return new GermanNormalizationFilter(tokenStream);
}
}

44
src/main/java/org/elasticsearch/index/analysis/HindiNormalizationFilterFactory.java Normal file
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@ -0,0 +1,44 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.hi.HindiNormalizationFilter;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Factory for {@link HindiNormalizationFilter}
*/
public class HindiNormalizationFilterFactory extends AbstractTokenFilterFactory {
@Inject
public HindiNormalizationFilterFactory(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
}
@Override
public TokenStream create(TokenStream tokenStream) {
return new HindiNormalizationFilter(tokenStream);
}
}

44
src/main/java/org/elasticsearch/index/analysis/IndicNormalizationFilterFactory.java Normal file
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@ -0,0 +1,44 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.in.IndicNormalizationFilter;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Factory for {@link IndicNormalizationFilter}
*/
public class IndicNormalizationFilterFactory extends AbstractTokenFilterFactory {
@Inject
public IndicNormalizationFilterFactory(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
}
@Override
public TokenStream create(TokenStream tokenStream) {
return new IndicNormalizationFilter(tokenStream);
}
}

50
src/main/java/org/elasticsearch/index/analysis/IrishAnalyzerProvider.java Normal file
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@ -0,0 +1,50 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.ga.IrishAnalyzer;
import org.apache.lucene.analysis.util.CharArraySet;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Provider for {@link IrishAnalyzer}
*/
public class IrishAnalyzerProvider extends AbstractIndexAnalyzerProvider<IrishAnalyzer> {
private final IrishAnalyzer analyzer;
@Inject
public IrishAnalyzerProvider(Index index, @IndexSettings Settings indexSettings, Environment env, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
analyzer = new IrishAnalyzer(version,
Analysis.parseStopWords(env, settings, IrishAnalyzer.getDefaultStopSet(), version),
Analysis.parseStemExclusion(settings, CharArraySet.EMPTY_SET, version));
}
@Override
public IrishAnalyzer get() {
return this.analyzer;
}
}

11
src/main/java/org/elasticsearch/index/analysis/LowerCaseTokenFilterFactory.java
View File

@ -22,6 +22,7 @@ package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.core.LowerCaseFilter;
import org.apache.lucene.analysis.el.GreekLowerCaseFilter;
import org.apache.lucene.analysis.ga.IrishLowerCaseFilter;
import org.apache.lucene.analysis.tr.TurkishLowerCaseFilter;
import org.elasticsearch.ElasticsearchIllegalArgumentException;
import org.elasticsearch.common.inject.Inject;
@ -31,7 +32,13 @@ import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
*
* Factory for {@link LowerCaseFilter} and some language-specific variants
* supported by the {@code language} parameter:
* <ul>
* <li>greek: {@link GreekLowerCaseFilter}
* <li>irish: {@link IrishLowerCaseFilter}
* <li>turkish: {@link TurkishLowerCaseFilter}
* </ul>
*/
public class LowerCaseTokenFilterFactory extends AbstractTokenFilterFactory {
@ -49,6 +56,8 @@ public class LowerCaseTokenFilterFactory extends AbstractTokenFilterFactory {
return new LowerCaseFilter(version, tokenStream);
} else if (lang.equalsIgnoreCase("greek")) {
return new GreekLowerCaseFilter(version, tokenStream);
} else if (lang.equalsIgnoreCase("irish")) {
return new IrishLowerCaseFilter(tokenStream);
} else if (lang.equalsIgnoreCase("turkish")) {
return new TurkishLowerCaseFilter(tokenStream);
} else {

44
src/main/java/org/elasticsearch/index/analysis/ScandinavianFoldingFilterFactory.java Normal file
View File

@ -0,0 +1,44 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.miscellaneous.ScandinavianFoldingFilter;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Factory for {@link ScandinavianFoldingFilter}
*/
public class ScandinavianFoldingFilterFactory extends AbstractTokenFilterFactory {
@Inject
public ScandinavianFoldingFilterFactory(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
}
@Override
public TokenStream create(TokenStream tokenStream) {
return new ScandinavianFoldingFilter(tokenStream);
}
}

44
src/main/java/org/elasticsearch/index/analysis/ScandinavianNormalizationFilterFactory.java Normal file
View File

@ -0,0 +1,44 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.miscellaneous.ScandinavianNormalizationFilter;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Factory for {@link ScandinavianNormalizationFilter}
*/
public class ScandinavianNormalizationFilterFactory extends AbstractTokenFilterFactory {
@Inject
public ScandinavianNormalizationFilterFactory(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
}
@Override
public TokenStream create(TokenStream tokenStream) {
return new ScandinavianNormalizationFilter(tokenStream);
}
}

50
src/main/java/org/elasticsearch/index/analysis/SoraniAnalyzerProvider.java Normal file
View File

@ -0,0 +1,50 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.ckb.SoraniAnalyzer;
import org.apache.lucene.analysis.util.CharArraySet;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Provider for {@link SoraniAnalyzer}
*/
public class SoraniAnalyzerProvider extends AbstractIndexAnalyzerProvider<SoraniAnalyzer> {
private final SoraniAnalyzer analyzer;
@Inject
public SoraniAnalyzerProvider(Index index, @IndexSettings Settings indexSettings, Environment env, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
analyzer = new SoraniAnalyzer(version,
Analysis.parseStopWords(env, settings, SoraniAnalyzer.getDefaultStopSet(), version),
Analysis.parseStemExclusion(settings, CharArraySet.EMPTY_SET, version));
}
@Override
public SoraniAnalyzer get() {
return this.analyzer;
}
}

44
src/main/java/org/elasticsearch/index/analysis/SoraniNormalizationFilterFactory.java Normal file
View File

@ -0,0 +1,44 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.ckb.SoraniNormalizationFilter;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
/**
* Factory for {@link SoraniNormalizationFilter}
*/
public class SoraniNormalizationFilterFactory extends AbstractTokenFilterFactory {
@Inject
public SoraniNormalizationFilterFactory(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
}
@Override
public TokenStream create(TokenStream tokenStream) {
return new SoraniNormalizationFilter(tokenStream);
}
}

29
src/main/java/org/elasticsearch/index/analysis/StemmerTokenFilterFactory.java
View File

@ -23,6 +23,7 @@ import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.ar.ArabicStemFilter;
import org.apache.lucene.analysis.bg.BulgarianStemFilter;
import org.apache.lucene.analysis.br.BrazilianStemFilter;
import org.apache.lucene.analysis.ckb.SoraniStemFilter;
import org.apache.lucene.analysis.cz.CzechStemFilter;
import org.apache.lucene.analysis.de.GermanLightStemFilter;
import org.apache.lucene.analysis.de.GermanMinimalStemFilter;
@ -35,11 +36,15 @@ import org.apache.lucene.analysis.es.SpanishLightStemFilter;
import org.apache.lucene.analysis.fi.FinnishLightStemFilter;
import org.apache.lucene.analysis.fr.FrenchLightStemFilter;
import org.apache.lucene.analysis.fr.FrenchMinimalStemFilter;
import org.apache.lucene.analysis.gl.GalicianMinimalStemFilter;
import org.apache.lucene.analysis.gl.GalicianStemFilter;
import org.apache.lucene.analysis.hi.HindiStemFilter;
import org.apache.lucene.analysis.hu.HungarianLightStemFilter;
import org.apache.lucene.analysis.id.IndonesianStemFilter;
import org.apache.lucene.analysis.it.ItalianLightStemFilter;
import org.apache.lucene.analysis.lv.LatvianStemFilter;
import org.apache.lucene.analysis.no.NorwegianLightStemFilter;
import org.apache.lucene.analysis.no.NorwegianLightStemmer;
import org.apache.lucene.analysis.no.NorwegianMinimalStemFilter;
import org.apache.lucene.analysis.pt.PortugueseLightStemFilter;
import org.apache.lucene.analysis.pt.PortugueseMinimalStemFilter;
@ -137,6 +142,12 @@ public class StemmerTokenFilterFactory extends AbstractTokenFilterFactory {
return new FrenchLightStemFilter(tokenStream);
} else if ("minimal_french".equalsIgnoreCase(language) || "minimalFrench".equalsIgnoreCase(language)) {
return new FrenchMinimalStemFilter(tokenStream);
// Galician stemmers
} else if ("galician".equalsIgnoreCase(language)) {
return new GalicianStemFilter(tokenStream);
} else if ("minimal_galician".equalsIgnoreCase(language)) {
return new GalicianMinimalStemFilter(tokenStream);
// German stemmers
} else if ("german".equalsIgnoreCase(language)) {
@ -161,6 +172,10 @@ public class StemmerTokenFilterFactory extends AbstractTokenFilterFactory {
} else if ("indonesian".equalsIgnoreCase(language)) {
return new IndonesianStemFilter(tokenStream);
// Irish stemmer
} else if ("irish".equalsIgnoreCase(language)) {
return new SnowballFilter(tokenStream, new IrishStemmer());
// Italian stemmers
} else if ("italian".equalsIgnoreCase(language)) {
@ -171,11 +186,19 @@ public class StemmerTokenFilterFactory extends AbstractTokenFilterFactory {
} else if ("latvian".equalsIgnoreCase(language)) {
return new LatvianStemFilter(tokenStream);
// Norwegian stemmers
// Norwegian (Bokmål) stemmers
} else if ("norwegian".equalsIgnoreCase(language)) {
return new SnowballFilter(tokenStream, new NorwegianStemmer());
} else if ("light_norwegian".equalsIgnoreCase(language) || "lightNorwegian".equalsIgnoreCase(language)) {
return new NorwegianLightStemFilter(tokenStream);
} else if ("minimal_norwegian".equalsIgnoreCase(language) || "minimalNorwegian".equals(language)) {
return new NorwegianMinimalStemFilter(tokenStream);
// Norwegian (Nynorsk) stemmers
} else if ("light_nynorsk".equalsIgnoreCase(language) || "lightNynorsk".equalsIgnoreCase(language)) {
return new NorwegianLightStemFilter(tokenStream, NorwegianLightStemmer.NYNORSK);
} else if ("minimal_nynorsk".equalsIgnoreCase(language) || "minimalNynorsk".equalsIgnoreCase(language)) {
return new NorwegianMinimalStemFilter(tokenStream, NorwegianLightStemmer.NYNORSK);
// Portuguese stemmers
} else if ("portuguese".equalsIgnoreCase(language)) {
@ -201,6 +224,10 @@ public class StemmerTokenFilterFactory extends AbstractTokenFilterFactory {
return new SnowballFilter(tokenStream, new SpanishStemmer());
} else if ("light_spanish".equalsIgnoreCase(language) || "lightSpanish".equalsIgnoreCase(language)) {
return new SpanishLightStemFilter(tokenStream);
// Sorani Kurdish stemmer
} else if ("sorani".equalsIgnoreCase(language)) {
return new SoraniStemFilter(tokenStream);
// Swedish stemmers
} else if ("swedish".equalsIgnoreCase(language)) {

46
src/main/java/org/elasticsearch/index/analysis/ThaiTokenizerFactory.java Normal file
View File

@ -0,0 +1,46 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.th.ThaiTokenizer;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.inject.assistedinject.Assisted;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.Index;
import org.elasticsearch.index.settings.IndexSettings;
import java.io.Reader;
/**
* Factory for {@link ThaiTokenizer}
*/
public class ThaiTokenizerFactory extends AbstractTokenizerFactory {
@Inject
public ThaiTokenizerFactory(Index index, @IndexSettings Settings indexSettings, @Assisted String name, @Assisted Settings settings) {
super(index, indexSettings, name, settings);
}
@Override
public Tokenizer create(Reader reader) {
return new ThaiTokenizer(reader);
}
}

8
src/main/java/org/elasticsearch/indices/analysis/PreBuiltAnalyzers.java
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@ -24,6 +24,7 @@ import org.apache.lucene.analysis.bg.BulgarianAnalyzer;
import org.apache.lucene.analysis.br.BrazilianAnalyzer;
import org.apache.lucene.analysis.ca.CatalanAnalyzer;
import org.apache.lucene.analysis.cjk.CJKAnalyzer;
import org.apache.lucene.analysis.ckb.SoraniAnalyzer;
import org.apache.lucene.analysis.cn.ChineseAnalyzer;
import org.apache.lucene.analysis.core.KeywordAnalyzer;
import org.apache.lucene.analysis.core.SimpleAnalyzer;
@ -348,6 +349,13 @@ public enum PreBuiltAnalyzers {
return new RussianAnalyzer(version.luceneVersion);
}
},
SORANI {
@Override
protected Analyzer create(Version version) {
return new SoraniAnalyzer(version.luceneVersion);
}
},
SPANISH {
@Override

50
src/test/java/org/elasticsearch/index/analysis/AnalysisFactoryTests.java
View File

@ -43,6 +43,7 @@ public class AnalysisFactoryTests extends ElasticsearchTestCase {
put("russianletter", Deprecated.class);
// exposed in ES
put("classic", ClassicTokenizerFactory.class);
put("edgengram", EdgeNGramTokenizerFactory.class);
put("keyword", KeywordTokenizerFactory.class);
put("letter", LetterTokenizerFactory.class);
@ -51,16 +52,10 @@ public class AnalysisFactoryTests extends ElasticsearchTestCase {
put("pathhierarchy", PathHierarchyTokenizerFactory.class);
put("pattern", PatternTokenizerFactory.class);
put("standard", StandardTokenizerFactory.class);
put("thai", ThaiTokenizerFactory.class);
put("uax29urlemail", UAX29URLEmailTokenizerFactory.class);
put("whitespace", WhitespaceTokenizerFactory.class);
// TODO: these tokenizers are not yet exposed: useful?
// historical version of standardtokenizer... tries to recognize
// company names and a few other things. not good for asian languages etc.
put("classic", Void.class);
// we should add this, the thaiwordfilter is deprecated. this one has correct offsets
put("thai", Void.class);
// this one "seems to mess up offsets". probably shouldn't be a tokenizer...
put("wikipedia", Void.class);
}};
@ -80,6 +75,7 @@ public class AnalysisFactoryTests extends ElasticsearchTestCase {
// exposed in ES
put("apostrophe", ApostropheFilterFactory.class);
put("arabicnormalization", ArabicNormalizationFilterFactory.class);
put("arabicstem", ArabicStemTokenFilterFactory.class);
put("asciifolding", ASCIIFoldingTokenFilterFactory.class);
@ -87,6 +83,7 @@ public class AnalysisFactoryTests extends ElasticsearchTestCase {
put("bulgarianstem", StemmerTokenFilterFactory.class);
put("cjkbigram", CJKBigramFilterFactory.class);
put("cjkwidth", CJKWidthFilterFactory.class);
put("classic", ClassicFilterFactory.class);
put("commongrams", CommonGramsTokenFilterFactory.class);
put("commongramsquery", CommonGramsTokenFilterFactory.class);
put("czechstem", CzechStemTokenFilterFactory.class);
@ -99,16 +96,21 @@ public class AnalysisFactoryTests extends ElasticsearchTestCase {
put("finnishlightstem", StemmerTokenFilterFactory.class);
put("frenchlightstem", StemmerTokenFilterFactory.class);
put("frenchminimalstem", StemmerTokenFilterFactory.class);
put("galicianminimalstem", StemmerTokenFilterFactory.class);
put("galicianstem", StemmerTokenFilterFactory.class);
put("germanstem", GermanStemTokenFilterFactory.class);
put("germanlightstem", StemmerTokenFilterFactory.class);
put("germanminimalstem", StemmerTokenFilterFactory.class);
put("germannormalization", GermanNormalizationFilterFactory.class);
put("greeklowercase", LowerCaseTokenFilterFactory.class);
put("greekstem", StemmerTokenFilterFactory.class);
put("hindistem", StemmerTokenFilterFactory.class);
put("hindinormalization", HindiNormalizationFilterFactory.class);
put("hindistem", StemmerTokenFilterFactory.class);
put("hungarianlightstem", StemmerTokenFilterFactory.class);
put("hunspellstem", HunspellTokenFilterFactory.class);
put("hyphenationcompoundword", HyphenationCompoundWordTokenFilterFactory.class);
put("indicnormalization", IndicNormalizationFilterFactory.class);
put("irishlowercase", LowerCaseTokenFilterFactory.class);
put("indonesianstem", StemmerTokenFilterFactory.class);
put("italianlightstem", StemmerTokenFilterFactory.class);
put("keepword", KeepWordFilterFactory.class);
@ -119,17 +121,23 @@ public class AnalysisFactoryTests extends ElasticsearchTestCase {
put("limittokencount", LimitTokenCountFilterFactory.class);
put("lowercase", LowerCaseTokenFilterFactory.class);
put("ngram", NGramTokenFilterFactory.class);
put("norwegianlightstem", StemmerTokenFilterFactory.class);
put("norwegianminimalstem", StemmerTokenFilterFactory.class);
put("patterncapturegroup", PatternCaptureGroupTokenFilterFactory.class);
put("patternreplace", PatternReplaceTokenFilterFactory.class);
put("persiannormalization", PersianNormalizationFilterFactory.class);
put("porterstem", PorterStemTokenFilterFactory.class);
put("portuguesestem", StemmerTokenFilterFactory.class);
put("portugueselightstem", StemmerTokenFilterFactory.class);
put("portugueseminimalstem", StemmerTokenFilterFactory.class);
put("reversestring", ReverseTokenFilterFactory.class);
put("russianlightstem", StemmerTokenFilterFactory.class);
put("scandinavianfolding", ScandinavianFoldingFilterFactory.class);
put("scandinaviannormalization", ScandinavianNormalizationFilterFactory.class);
put("shingle", ShingleTokenFilterFactory.class);
put("snowballporter", SnowballTokenFilterFactory.class);
put("soraninormalization", SoraniNormalizationFilterFactory.class);
put("soranistem", StemmerTokenFilterFactory.class);
put("spanishlightstem", StemmerTokenFilterFactory.class);
put("standard", StandardTokenFilterFactory.class);
put("stemmeroverride", StemmerOverrideTokenFilterFactory.class);
@ -144,46 +152,20 @@ public class AnalysisFactoryTests extends ElasticsearchTestCase {
// TODO: these tokenfilters are not yet exposed: useful?
// useful for turkish language
put("apostrophe", Void.class);
// capitalizes tokens
put("capitalization", Void.class);
// cleans up after classic tokenizer
put("classic", Void.class);
// like length filter (but codepoints)
put("codepointcount", Void.class);
// galician language stemmers
put("galicianminimalstem", Void.class);
put("galicianstem", Void.class);
// o+umlaut=oe type normalization for german
put("germannormalization", Void.class);
// hindi text normalization
put("hindinormalization", Void.class);
// puts hyphenated words back together
put("hyphenatedwords", Void.class);
// unicode normalization for indian languages
put("indicnormalization", Void.class);
// lowercasing for irish: add to LowerCase (has a stemmer, too)
put("irishlowercase", Void.class);
// repeats anything marked as keyword
put("keywordrepeat", Void.class);
// like limittokencount, but by position
put("limittokenposition", Void.class);
// ???
put("numericpayload", Void.class);
// RSLP stemmer for portuguese
put("portuguesestem", Void.class);
// light stemming for norwegian (has nb/nn options too)
put("norwegianlightstem", Void.class);
// removes duplicates at the same position (this should be used by the existing factory)
put("removeduplicates", Void.class);
// accent handling for scandinavian languages
put("scandinavianfolding", Void.class);
// less aggressive accent handling for scandinavian languages
put("scandinaviannormalization", Void.class);
// kurdish language support
put("soraninormalization", Void.class);
put("soranistem", Void.class);
// ???
put("tokenoffsetpayload", Void.class);
// like a stop filter but by token-type