
org.hibernate.search.indexes.impl.LuceneEmbeddedIndexFamilyImpl Maven / Gradle / Ivy
/*
* 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 .
*/
package org.hibernate.search.indexes.impl;
import java.lang.invoke.MethodHandles;
import java.text.ParseException;
import org.hibernate.search.analyzer.impl.LuceneEmbeddedAnalyzerStrategy;
import org.hibernate.search.analyzer.spi.AnalyzerStrategy;
import org.hibernate.search.cfg.Environment;
import org.hibernate.search.cfg.spi.SearchConfiguration;
import org.hibernate.search.engine.nulls.impl.LuceneMissingValueStrategy;
import org.hibernate.search.engine.nulls.impl.MissingValueStrategy;
import org.hibernate.search.engine.service.spi.ServiceManager;
import org.hibernate.search.exception.SearchException;
import org.hibernate.search.indexes.LuceneEmbeddedIndexFamily;
import org.hibernate.search.indexes.spi.IndexFamilyImplementor;
import org.hibernate.search.util.StringHelper;
import org.hibernate.search.util.logging.impl.Log;
import org.hibernate.search.util.logging.impl.LoggerFactory;
import org.apache.lucene.util.Version;
public class LuceneEmbeddedIndexFamilyImpl implements IndexFamilyImplementor, LuceneEmbeddedIndexFamily {
private static final Log log = LoggerFactory.make( MethodHandles.lookup() );
private final ServiceManager serviceManager;
private final String defaultAnalyzer;
private final Version luceneMatchVersion;
public LuceneEmbeddedIndexFamilyImpl(ServiceManager serviceManager, SearchConfiguration cfg) {
this.serviceManager = serviceManager;
this.defaultAnalyzer = cfg.getProperty( Environment.ANALYZER_CLASS );
this.luceneMatchVersion = getLuceneMatchVersion( cfg );
}
@Override
public void close() {
// Nothing to do
}
@Override
public T unwrap(Class unwrappedClass) {
if ( unwrappedClass.isAssignableFrom( LuceneEmbeddedIndexFamily.class ) ) {
return (T) this;
}
else {
throw new SearchException( "Cannot unwrap a '" + getClass().getName() + "' into a '" + unwrappedClass.getName() + "'" );
}
}
@Override
public AnalyzerStrategy createAnalyzerStrategy() {
return new LuceneEmbeddedAnalyzerStrategy( serviceManager, defaultAnalyzer, luceneMatchVersion );
}
@Override
public MissingValueStrategy getMissingValueStrategy() {
return LuceneMissingValueStrategy.INSTANCE;
}
private Version getLuceneMatchVersion(SearchConfiguration cfg) {
final Version version;
String tmp = cfg.getProperty( Environment.LUCENE_MATCH_VERSION );
if ( StringHelper.isEmpty( tmp ) ) {
log.recommendConfiguringLuceneVersion();
version = Environment.DEFAULT_LUCENE_MATCH_VERSION;
}
else {
try {
version = Version.parseLeniently( tmp );
if ( log.isDebugEnabled() ) {
log.debug( "Setting Lucene compatibility to Version " + version );
}
}
catch (IllegalArgumentException e) {
throw log.illegalLuceneVersionFormat( tmp, e.getMessage() );
}
catch (ParseException e) {
throw log.illegalLuceneVersionFormat( tmp, e.getMessage() );
}
}
return version;
}
}
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