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LuceneAnalysisConfigurationContextImpl.java
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LuceneAnalysisConfigurationContextImpl.java
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/*
* Hibernate Search, full-text search for your domain model
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.search.backend.lucene.analysis.model.dsl.impl;
import java.lang.invoke.MethodHandles;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Optional;
import org.hibernate.search.backend.lucene.analysis.impl.LuceneAnalysisComponentFactory;
import org.hibernate.search.backend.lucene.analysis.LuceneAnalysisConfigurationContext;
import org.hibernate.search.backend.lucene.analysis.model.dsl.LuceneAnalyzerTypeStep;
import org.hibernate.search.backend.lucene.analysis.model.dsl.LuceneAnalyzerTokenizerStep;
import org.hibernate.search.backend.lucene.analysis.model.dsl.LuceneNormalizerOptionalComponentsStep;
import org.hibernate.search.backend.lucene.analysis.model.dsl.LuceneNormalizerTypeStep;
import org.hibernate.search.backend.lucene.analysis.model.impl.LuceneAnalysisDefinitionCollector;
import org.hibernate.search.backend.lucene.analysis.model.impl.LuceneAnalysisDefinitionContributor;
import org.hibernate.search.backend.lucene.logging.impl.Log;
import org.hibernate.search.util.common.logging.impl.LoggerFactory;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.search.similarities.Similarity;
public class LuceneAnalysisConfigurationContextImpl
implements LuceneAnalysisConfigurationContext, LuceneAnalysisDefinitionContributor {
private static final Log log = LoggerFactory.make( Log.class, MethodHandles.lookup() );
private final LuceneAnalysisComponentFactory factory;
private Similarity similarity;
private final Map<String, LuceneAnalyzerBuilder> analyzers = new LinkedHashMap<>();
private final Map<String, LuceneAnalyzerBuilder> normalizers = new LinkedHashMap<>();
public LuceneAnalysisConfigurationContextImpl(LuceneAnalysisComponentFactory factory) {
this.factory = factory;
}
@Override
public LuceneAnalyzerTypeStep analyzer(String name) {
return new LuceneAnalyzerTypeStep() {
@Override
public LuceneAnalyzerTokenizerStep custom() {
LuceneAnalyzerComponentsStep definition = new LuceneAnalyzerComponentsStep( name );
addAnalyzer( name, definition );
return definition;
}
@Override
public LuceneAnalysisConfigurationContext instance(Analyzer instance) {
LuceneAnalyzerInstanceBuilder definition = new LuceneAnalyzerInstanceBuilder( instance );
addAnalyzer( name, definition );
return LuceneAnalysisConfigurationContextImpl.this;
}
};
}
@Override
public LuceneNormalizerTypeStep normalizer(String name) {
return new LuceneNormalizerTypeStep() {
@Override
public LuceneNormalizerOptionalComponentsStep custom() {
LuceneNormalizerComponentsStep definition = new LuceneNormalizerComponentsStep( name );
addNormalizer( name, definition );
return definition;
}
@Override
public LuceneAnalysisConfigurationContext instance(Analyzer instance) {
LuceneNormalizerInstanceBuilder definition = new LuceneNormalizerInstanceBuilder( name, instance );
addNormalizer( name, definition );
return LuceneAnalysisConfigurationContextImpl.this;
}
};
}
@Override
public void similarity(Similarity similarity) {
this.similarity = similarity;
}
@Override
public void contribute(LuceneAnalysisDefinitionCollector collector) {
for ( Map.Entry<String, LuceneAnalyzerBuilder> entry : analyzers.entrySet() ) {
collector.collectAnalyzer( entry.getKey(), entry.getValue().build( factory ) );
}
for ( Map.Entry<String, LuceneAnalyzerBuilder> entry : normalizers.entrySet() ) {
collector.collectNormalizer( entry.getKey(), entry.getValue().build( factory ) );
}
}
@Override
public Optional<Similarity> getSimilarity() {
return Optional.ofNullable( similarity );
}
private void addAnalyzer(String name, LuceneAnalyzerBuilder definition) {
LuceneAnalysisComponentBuilder<Analyzer> existing = analyzers.putIfAbsent( name, definition );
if ( existing != null ) {
throw log.analyzerDefinitionNamingConflict( name );
}
}
private void addNormalizer(String name, LuceneAnalyzerBuilder definition) {
LuceneAnalysisComponentBuilder<Analyzer> existing = normalizers.putIfAbsent( name, definition );
if ( existing != null ) {
throw log.normalizerDefinitionNamingConflict( name );
}
}
}