Package org.apache.lucene.search

Examples of org.apache.lucene.search.Similarity$MethodSupport

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        }
        doc = spans.doc();
        freq = 0.0f;
        payloadScore = 0;
        payloadsSeen = 0;
        Similarity similarity1 = getSimilarity();
        while (more && doc == spans.doc()) {
          int matchLength = spans.end() - spans.start();

          freq += similarity1.sloppyFreq(matchLength);
          processPayload(similarity1);

          more = spans.next();//this moves positions to the next match in this document
        }
        return more || (freq != 0);
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  private IndexSearcher buildSearcher(SearchFactoryImplementor searchFactoryImplementor, Boolean forceScoring) {
    Map<Class<?>, DocumentBuilderIndexedEntity<?>> builders = searchFactoryImplementor.getDocumentBuildersIndexedEntities();
    List<DirectoryProvider> targetedDirectories = new ArrayList<DirectoryProvider>();
    Set<String> idFieldNames = new HashSet<String>();

    Similarity searcherSimilarity = null;
    //TODO check if caching this work for the last n list of indexedTargetedEntities makes a perf boost
    if ( indexedTargetedEntities.size() == 0 ) {
      // empty indexedTargetedEntities array means search over all indexed enities,
      // but we have to make sure there is at least one
      if ( builders.isEmpty() ) {
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  private void fillSimilarityMapping() {
    final Map<Class<?>, DocumentBuilderIndexedEntity<?>> documentBuildersIndexedEntities = factoryState.getDocumentBuildersIndexedEntities();
    for ( DirectoryProviderData directoryConfiguration : factoryState.getDirectoryProviderData().values() ) {
      for ( Class<?> indexedType : directoryConfiguration.getClasses() ) {
        DocumentBuilderIndexedEntity<?> documentBuilder = documentBuildersIndexedEntities.get( indexedType );
        Similarity similarity = documentBuilder.getSimilarity();
        Similarity prevSimilarity = directoryConfiguration.getSimilarity();
        if ( prevSimilarity != null && !prevSimilarity.getClass().equals( similarity.getClass() ) ) {
          throw new SearchException(
              "Multiple entities are sharing the same index but are declaring an " +
                  "inconsistent Similarity. When overrriding default Similarity make sure that all types sharing a same index " +
                  "declare the same Similarity implementation."
          );
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    batchBackend.initialize( batchBackendConfiguration, progressMonitor, this );
    return batchBackend;
  }

  public Similarity getSimilarity(DirectoryProvider<?> provider) {
    Similarity similarity = dirProviderData.get( provider ).getSimilarity();
    if ( similarity == null ) {
      throw new SearchException( "Assertion error: a similarity should be defined for each provider" );
    }
    return similarity;
  }
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   *
   * @return returns the default similarity class.
   */
  private Similarity initSimilarity(SearchConfiguration cfg) {
    String similarityClassName = cfg.getProperty( Environment.SIMILARITY_CLASS );
    Similarity defaultSimilarity;
    if ( StringHelper.isEmpty( similarityClassName ) ) {
      defaultSimilarity = Similarity.getDefault();
    }
    else {
      defaultSimilarity = ClassLoaderHelper.instanceFromName(
          Similarity.class, similarityClassName, ConfigContext.class, "default similarity"
      );
    }
    log.debug( "Using default similarity implementation: {}", defaultSimilarity.getClass().getName() );
    return defaultSimilarity;
  }
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   *
   * @return returns the default similarity class.
   */
  private Similarity initSimilarity(SearchConfiguration cfg) {
    String similarityClassName = cfg.getProperty( Environment.SIMILARITY_CLASS );
    Similarity defaultSimilarity;
    if ( StringHelper.isEmpty( similarityClassName ) ) {
      defaultSimilarity = Similarity.getDefault();
    }
    else {
      defaultSimilarity = ClassLoaderHelper.instanceFromName(
          Similarity.class, similarityClassName, ConfigContext.class, "default similarity"
      );
    }
    log.debugf( "Using default similarity implementation: %s", defaultSimilarity.getClass().getName() );
    return defaultSimilarity;
  }
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    this.indexName = indexManager.getIndexName();
    LuceneIndexingParameters luceneParameters = indexManager.getIndexingParameters();
    this.indexParameters = luceneParameters.getIndexParameters();
    this.directoryProvider = indexManager.getDirectoryProvider();
    luceneParameters.applyToWriter( writerConfig );
    Similarity similarity = indexManager.getSimilarity();
    if ( similarity != null ) {
      writerConfig.setSimilarity( similarity );
    }
    writerConfig.setOpenMode( OpenMode.APPEND ); //More efficient to open
    //TODO remove this awful need to set a reference back again to the indexManager:
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    //TODO cleanup: this logic to select the Similarity is too complex, should likely be done in a previous phase
    final Map<Class<?>, EntityIndexBinder> documentBuildersIndexedEntities = factoryState.getIndexBindingForEntity();
    for ( Entry<Class<?>, EntityIndexBinder> entry : documentBuildersIndexedEntities.entrySet() ) {
      Class<?> clazz = entry.getKey();
      EntityIndexBinder entityMapping = entry.getValue();
      Similarity entitySimilarity = entityMapping.getSimilarity();
      if ( entitySimilarity == null ) {
        //might have been read from annotations, fill the missing information in the EntityIndexBinder:
        entitySimilarity = entityMapping.getDocumentBuilder().getSimilarity();
        if ( entitySimilarity != null ) {
          MutableEntityIndexBinding newMapping = buildTypeSafeMutableEntityBinder(
              clazz,
              entityMapping,
              entitySimilarity
          );
          entityMapping = newMapping;
          documentBuildersIndexedEntities.put( clazz, entityMapping );
        }
      }
      IndexManager[] indexManagers = entityMapping.getIndexManagers();
      for ( IndexManager indexManager : indexManagers ) {
        Similarity indexSimilarity = indexManager.getSimilarity();
        if ( entitySimilarity != null && indexSimilarity == null ) {
          indexManager.setSimilarity( entitySimilarity );
        }
        else if ( entitySimilarity != null && ! entitySimilarity.getClass().equals( indexSimilarity.getClass() ) ) {
          throw new SearchException(
              "Multiple entities are sharing the same index but are declaring an " +
                  "inconsistent Similarity. When overriding default Similarity make sure that all types sharing a same index " +
                  "declare the same Similarity implementation."
          );
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    //TODO cleanup: this logic to select the Similarity is too complex, should likely be done in a previous phase
    final Map<Class<?>, EntityIndexBinding> documentBuildersIndexedEntities = factoryState.getIndexBindings();
    for ( Entry<Class<?>, EntityIndexBinding> entry : documentBuildersIndexedEntities.entrySet() ) {
      Class<?> clazz = entry.getKey();
      EntityIndexBinding entityIndexBinding = entry.getValue();
      Similarity entitySimilarity = entityIndexBinding.getSimilarity();
      if ( entitySimilarity == null ) {
        //might have been read from annotations, fill the missing information in the EntityIndexBinder:
        entitySimilarity = entityIndexBinding.getDocumentBuilder().getSimilarity();
        if ( entitySimilarity != null ) {
          MutableEntityIndexBinding newMapping = buildTypeSafeMutableEntityBinder(
              entityIndexBinding,
              entitySimilarity
          );
          entityIndexBinding = newMapping;
          documentBuildersIndexedEntities.put( clazz, entityIndexBinding );
        }
      }
      IndexManager[] indexManagers = entityIndexBinding.getIndexManagers();
      for ( IndexManager indexManager : indexManagers ) {
        Similarity indexSimilarity = indexManager.getSimilarity();
        if ( entitySimilarity != null && indexSimilarity == null ) {
          indexManager.setSimilarity( entitySimilarity );
        }
        else if ( entitySimilarity != null && ! entitySimilarity.getClass().equals( indexSimilarity.getClass() ) ) {
          throw new SearchException(
              "Multiple entities are sharing the same index but are declaring an " +
                  "inconsistent Similarity. When overriding default Similarity make sure that all types sharing a same index " +
                  "declare the same Similarity implementation."
          );
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   *
   * @return returns the default similarity class.
   */
  private Similarity initSimilarity(SearchConfiguration cfg) {
    String similarityClassName = cfg.getProperty( Environment.SIMILARITY_CLASS );
    Similarity defaultSimilarity;
    if ( StringHelper.isEmpty( similarityClassName ) ) {
      defaultSimilarity = Similarity.getDefault();
    }
    else {
      defaultSimilarity = ClassLoaderHelper.instanceFromName(
          Similarity.class, similarityClassName, ConfigContext.class, "default similarity"
      );
    }
    log.debugf( "Using default similarity implementation: %s", defaultSimilarity.getClass().getName() );
    return defaultSimilarity;
  }
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