Package org.apache.lucene.analysis.custom

Class CustomAnalyzer.Builder

java.lang.Object

org.apache.lucene.analysis.custom.CustomAnalyzer.Builder

Enclosing class:

CustomAnalyzer

public static final class CustomAnalyzer.Builder
extends java.lang.Object

Builder for CustomAnalyzer.

See Also:

CustomAnalyzer.builder(), CustomAnalyzer.builder(Path), CustomAnalyzer.builder(ResourceLoader)

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.List<CharFilterFactory>	charFilters
private boolean	componentsAdded
private SetOnce<Version>	defaultMatchVersion
private ResourceLoader	loader
private SetOnce<java.lang.Integer>	offsetGap
private SetOnce<java.lang.Integer>	posIncGap
private java.util.List<TokenFilterFactory>	tokenFilters
private SetOnce<TokenizerFactory>	tokenizer

Constructor Summary

Constructors

Constructor	Description
Builder(ResourceLoader loader)

Method Summary

Modifier and Type	Method	Description
CustomAnalyzer.Builder	addCharFilter(java.lang.Class<? extends CharFilterFactory> factory, java.lang.String... params)	Adds the given char filter.
CustomAnalyzer.Builder	addCharFilter(java.lang.Class<? extends CharFilterFactory> factory, java.util.Map<java.lang.String,java.lang.String> params)	Adds the given char filter.
CustomAnalyzer.Builder	addCharFilter(java.lang.String name, java.lang.String... params)	Adds the given char filter.
CustomAnalyzer.Builder	addCharFilter(java.lang.String name, java.util.Map<java.lang.String,java.lang.String> params)	Adds the given char filter.
CustomAnalyzer.Builder	addTokenFilter(java.lang.Class<? extends TokenFilterFactory> factory, java.lang.String... params)	Adds the given token filter.
CustomAnalyzer.Builder	addTokenFilter(java.lang.Class<? extends TokenFilterFactory> factory, java.util.Map<java.lang.String,java.lang.String> params)	Adds the given token filter.
CustomAnalyzer.Builder	addTokenFilter(java.lang.String name, java.lang.String... params)	Adds the given token filter.
CustomAnalyzer.Builder	addTokenFilter(java.lang.String name, java.util.Map<java.lang.String,java.lang.String> params)	Adds the given token filter.
private CustomAnalyzer.Builder	addTokenFilter(TokenFilterFactory factory)
private java.util.Map<java.lang.String,java.lang.String>	applyDefaultParams(java.util.Map<java.lang.String,java.lang.String> map)
(package private) <T> T	applyResourceLoader(T factory)
CustomAnalyzer	build()	Builds the analyzer.
private java.util.Map<java.lang.String,java.lang.String>	paramsToMap(java.lang.String... params)
CustomAnalyzer.ConditionBuilder	when(java.lang.Class<? extends ConditionalTokenFilterFactory> factory, java.lang.String... params)	Add a ConditionalTokenFilterFactory to the analysis chain TokenFilters added by subsequent calls to CustomAnalyzer.ConditionBuilder.addTokenFilter(String, String...) and related functions will only be used if the current token matches the condition.
CustomAnalyzer.ConditionBuilder	when(java.lang.Class<? extends ConditionalTokenFilterFactory> factory, java.util.Map<java.lang.String,java.lang.String> params)	Add a ConditionalTokenFilterFactory to the analysis chain TokenFilters added by subsequent calls to CustomAnalyzer.ConditionBuilder.addTokenFilter(String, String...) and related functions will only be used if the current token matches the condition.
CustomAnalyzer.ConditionBuilder	when(java.lang.String name, java.lang.String... params)	Add a ConditionalTokenFilterFactory to the analysis chain TokenFilters added by subsequent calls to CustomAnalyzer.ConditionBuilder.addTokenFilter(String, String...) and related functions will only be used if the current token matches the condition.
CustomAnalyzer.ConditionBuilder	when(java.lang.String name, java.util.Map<java.lang.String,java.lang.String> params)	Add a ConditionalTokenFilterFactory to the analysis chain TokenFilters added by subsequent calls to CustomAnalyzer.ConditionBuilder.addTokenFilter(String, String...) and related functions will only be used if the current token matches the condition.
CustomAnalyzer.ConditionBuilder	when(ConditionalTokenFilterFactory factory)	Add a ConditionalTokenFilterFactory to the analysis chain TokenFilters added by subsequent calls to CustomAnalyzer.ConditionBuilder.addTokenFilter(String, String...) and related functions will only be used if the current token matches the condition.
CustomAnalyzer.ConditionBuilder	whenTerm(java.util.function.Predicate<java.lang.CharSequence> predicate)	Apply subsequent token filters if the current token's term matches a predicate This is the equivalent of:
CustomAnalyzer.Builder	withDefaultMatchVersion(Version version)	This match version is passed as default to all tokenizers or filters.
CustomAnalyzer.Builder	withOffsetGap(int offsetGap)	Sets the offset gap of the analyzer.
CustomAnalyzer.Builder	withPositionIncrementGap(int posIncGap)	Sets the position increment gap of the analyzer.
CustomAnalyzer.Builder	withTokenizer(java.lang.Class<? extends TokenizerFactory> factory, java.lang.String... params)	Uses the given tokenizer.
CustomAnalyzer.Builder	withTokenizer(java.lang.Class<? extends TokenizerFactory> factory, java.util.Map<java.lang.String,java.lang.String> params)	Uses the given tokenizer.
CustomAnalyzer.Builder	withTokenizer(java.lang.String name, java.lang.String... params)	Uses the given tokenizer.
CustomAnalyzer.Builder	withTokenizer(java.lang.String name, java.util.Map<java.lang.String,java.lang.String> params)	Uses the given tokenizer.

Methods inherited from class java.lang.Object

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

Field Detail

loader

private final ResourceLoader loader

defaultMatchVersion

private final SetOnce<Version> defaultMatchVersion

charFilters

private final java.util.List<CharFilterFactory> charFilters

tokenizer

private final SetOnce<TokenizerFactory> tokenizer

tokenFilters

private final java.util.List<TokenFilterFactory> tokenFilters

posIncGap

private final SetOnce<java.lang.Integer> posIncGap

offsetGap

private final SetOnce<java.lang.Integer> offsetGap

componentsAdded

private boolean componentsAdded

Constructor Detail

Builder

Builder(ResourceLoader loader)

Method Detail

withDefaultMatchVersion

public CustomAnalyzer.Builder withDefaultMatchVersion(Version version)

This match version is passed as default to all tokenizers or filters. It is used unless you pass the parameter {code luceneMatchVersion} explicitly. It defaults to undefined, so the underlying factory will (in most cases) use Version.LATEST.

withPositionIncrementGap

public CustomAnalyzer.Builder withPositionIncrementGap(int posIncGap)

Sets the position increment gap of the analyzer. The default is defined in the analyzer base class.

See Also:

Analyzer.getPositionIncrementGap(String)

withOffsetGap

public CustomAnalyzer.Builder withOffsetGap(int offsetGap)

Sets the offset gap of the analyzer. The default is defined in the analyzer base class.

See Also:

Analyzer.getOffsetGap(String)

withTokenizer

public CustomAnalyzer.Builder withTokenizer(java.lang.Class<? extends TokenizerFactory> factory,
                                            java.lang.String... params)
                                     throws java.io.IOException

Uses the given tokenizer.

Parameters:

factory - class that is used to create the tokenizer.

params - a list of factory string params as key/value pairs. The number of parameters must be an even number, as they are pairs.

Throws:

java.io.IOException

withTokenizer

public CustomAnalyzer.Builder withTokenizer(java.lang.Class<? extends TokenizerFactory> factory,
                                            java.util.Map<java.lang.String,java.lang.String> params)
                                     throws java.io.IOException

Uses the given tokenizer.

Parameters:

factory - class that is used to create the tokenizer.

params - the map of parameters to be passed to factory. The map must be modifiable.

Throws:

java.io.IOException

withTokenizer

public CustomAnalyzer.Builder withTokenizer(java.lang.String name,
                                            java.lang.String... params)
                                     throws java.io.IOException

Uses the given tokenizer.

Parameters:

name - is used to look up the factory with TokenizerFactory.forName(String, Map). The list of possible names can be looked up with TokenizerFactory.availableTokenizers().

params - a list of factory string params as key/value pairs. The number of parameters must be an even number, as they are pairs.

Throws:

java.io.IOException

withTokenizer

public CustomAnalyzer.Builder withTokenizer(java.lang.String name,
                                            java.util.Map<java.lang.String,java.lang.String> params)
                                     throws java.io.IOException

Uses the given tokenizer.

Parameters:

name - is used to look up the factory with TokenizerFactory.forName(String, Map). The list of possible names can be looked up with TokenizerFactory.availableTokenizers().

params - the map of parameters to be passed to factory. The map must be modifiable.

Throws:

java.io.IOException

addTokenFilter

public CustomAnalyzer.Builder addTokenFilter(java.lang.Class<? extends TokenFilterFactory> factory,
                                             java.lang.String... params)
                                      throws java.io.IOException

Adds the given token filter.

Parameters:

factory - class that is used to create the token filter.

params - a list of factory string params as key/value pairs. The number of parameters must be an even number, as they are pairs.

Throws:

java.io.IOException

addTokenFilter

public CustomAnalyzer.Builder addTokenFilter(java.lang.Class<? extends TokenFilterFactory> factory,
                                             java.util.Map<java.lang.String,java.lang.String> params)
                                      throws java.io.IOException

Adds the given token filter.

Parameters:

factory - class that is used to create the token filter.

params - the map of parameters to be passed to factory. The map must be modifiable.

Throws:

java.io.IOException

addTokenFilter

public CustomAnalyzer.Builder addTokenFilter(java.lang.String name,
                                             java.lang.String... params)
                                      throws java.io.IOException

Adds the given token filter.

Parameters:

name - is used to look up the factory with TokenFilterFactory.forName(String, Map). The list of possible names can be looked up with TokenFilterFactory.availableTokenFilters().

params - a list of factory string params as key/value pairs. The number of parameters must be an even number, as they are pairs.

Throws:

java.io.IOException

addTokenFilter

public CustomAnalyzer.Builder addTokenFilter(java.lang.String name,
                                             java.util.Map<java.lang.String,java.lang.String> params)
                                      throws java.io.IOException

Adds the given token filter.

Parameters:

name - is used to look up the factory with TokenFilterFactory.forName(String, Map). The list of possible names can be looked up with TokenFilterFactory.availableTokenFilters().

params - the map of parameters to be passed to factory. The map must be modifiable.

Throws:

java.io.IOException

addTokenFilter

private CustomAnalyzer.Builder addTokenFilter(TokenFilterFactory factory)

addCharFilter

public CustomAnalyzer.Builder addCharFilter(java.lang.Class<? extends CharFilterFactory> factory,
                                            java.lang.String... params)
                                     throws java.io.IOException

Adds the given char filter.

Parameters:

factory - class that is used to create the char filter.

params - a list of factory string params as key/value pairs. The number of parameters must be an even number, as they are pairs.

Throws:

java.io.IOException

addCharFilter

public CustomAnalyzer.Builder addCharFilter(java.lang.Class<? extends CharFilterFactory> factory,
                                            java.util.Map<java.lang.String,java.lang.String> params)
                                     throws java.io.IOException

Adds the given char filter.

Parameters:

factory - class that is used to create the char filter.

params - the map of parameters to be passed to factory. The map must be modifiable.

Throws:

java.io.IOException

addCharFilter

public CustomAnalyzer.Builder addCharFilter(java.lang.String name,
                                            java.lang.String... params)
                                     throws java.io.IOException

Adds the given char filter.

Parameters:

name - is used to look up the factory with CharFilterFactory.forName(String, Map). The list of possible names can be looked up with CharFilterFactory.availableCharFilters().

params - a list of factory string params as key/value pairs. The number of parameters must be an even number, as they are pairs.

Throws:

java.io.IOException

addCharFilter

public CustomAnalyzer.Builder addCharFilter(java.lang.String name,
                                            java.util.Map<java.lang.String,java.lang.String> params)
                                     throws java.io.IOException

Adds the given char filter.

Parameters:

name - is used to look up the factory with CharFilterFactory.forName(String, Map). The list of possible names can be looked up with CharFilterFactory.availableCharFilters().

params - the map of parameters to be passed to factory. The map must be modifiable.

Throws:

java.io.IOException

when

public CustomAnalyzer.ConditionBuilder when(java.lang.String name,
                                            java.lang.String... params)
                                     throws java.io.IOException

Add a ConditionalTokenFilterFactory to the analysis chain TokenFilters added by subsequent calls to CustomAnalyzer.ConditionBuilder.addTokenFilter(String, String...) and related functions will only be used if the current token matches the condition. Consumers must call CustomAnalyzer.ConditionBuilder.endwhen() to return to the normal tokenfilter chain once conditional filters have been added

Parameters:

name - is used to look up the factory with TokenFilterFactory.forName(String, Map)

params - the parameters to be passed to the factory

Throws:

java.io.IOException

when

public CustomAnalyzer.ConditionBuilder when(java.lang.String name,
                                            java.util.Map<java.lang.String,java.lang.String> params)
                                     throws java.io.IOException

Add a ConditionalTokenFilterFactory to the analysis chain TokenFilters added by subsequent calls to CustomAnalyzer.ConditionBuilder.addTokenFilter(String, String...) and related functions will only be used if the current token matches the condition. Consumers must call CustomAnalyzer.ConditionBuilder.endwhen() to return to the normal tokenfilter chain once conditional filters have been added

Parameters:

name - is used to look up the factory with TokenFilterFactory.forName(String, Map)

params - the parameters to be passed to the factory. The map must be modifiable

Throws:

java.io.IOException

when

public CustomAnalyzer.ConditionBuilder when(java.lang.Class<? extends ConditionalTokenFilterFactory> factory,
                                            java.lang.String... params)
                                     throws java.io.IOException

Add a ConditionalTokenFilterFactory to the analysis chain TokenFilters added by subsequent calls to CustomAnalyzer.ConditionBuilder.addTokenFilter(String, String...) and related functions will only be used if the current token matches the condition. Consumers must call CustomAnalyzer.ConditionBuilder.endwhen() to return to the normal tokenfilter chain once conditional filters have been added

Parameters:

factory - class that is used to create the ConditionalTokenFilter

params - the parameters to be passed to the factory

Throws:

java.io.IOException

when

public CustomAnalyzer.ConditionBuilder when(java.lang.Class<? extends ConditionalTokenFilterFactory> factory,
                                            java.util.Map<java.lang.String,java.lang.String> params)
                                     throws java.io.IOException

Add a ConditionalTokenFilterFactory to the analysis chain TokenFilters added by subsequent calls to CustomAnalyzer.ConditionBuilder.addTokenFilter(String, String...) and related functions will only be used if the current token matches the condition. Consumers must call CustomAnalyzer.ConditionBuilder.endwhen() to return to the normal tokenfilter chain once conditional filters have been added

Parameters:

factory - class that is used to create the ConditionalTokenFilter

params - the parameters to be passed to the factory. The map must be modifiable

Throws:

java.io.IOException

when

public CustomAnalyzer.ConditionBuilder when(ConditionalTokenFilterFactory factory)

Add a ConditionalTokenFilterFactory to the analysis chain TokenFilters added by subsequent calls to CustomAnalyzer.ConditionBuilder.addTokenFilter(String, String...) and related functions will only be used if the current token matches the condition. Consumers must call CustomAnalyzer.ConditionBuilder.endwhen() to return to the normal tokenfilter chain once conditional filters have been added

whenTerm

public CustomAnalyzer.ConditionBuilder whenTerm(java.util.function.Predicate<java.lang.CharSequence> predicate)

Apply subsequent token filters if the current token's term matches a predicate This is the equivalent of:

   when(new ConditionalTokenFilterFactory(Collections.emptyMap()) {
      @Override
      protected ConditionalTokenFilter create(TokenStream input, Function<TokenStream, TokenStream> inner) {
        return new ConditionalTokenFilter(input, inner) {
          CharTermAttribute termAtt = addAttribute(CharTermAttribute.class);
          @Override
          protected boolean shouldFilter() {
            return predicate.test(termAtt);
          }
        };
      }
   });
 

build

public CustomAnalyzer build()

Builds the analyzer.

applyDefaultParams

private java.util.Map<java.lang.String,java.lang.String> applyDefaultParams(java.util.Map<java.lang.String,java.lang.String> map)

paramsToMap

private java.util.Map<java.lang.String,java.lang.String> paramsToMap(java.lang.String... params)

applyResourceLoader

<T> T applyResourceLoader(T factory)
                   throws java.io.IOException

Throws:

java.io.IOException