Examples with ChunkFactory org.apache.stanbol.enhancer.engines.poschunker.PhraseBuilder.ChunkFactory used on opensource projects

Example 1 with ChunkFactory

use of org.apache.stanbol.enhancer.engines.poschunker.PhraseBuilder.ChunkFactory in project stanbol by apache.

the class PosChunkerEngine method computeEnhancements.

/**
     * Compute enhancements for supplied ContentItem. The results of the process
     * are expected to be stored in the metadata of the content item.
     * <p/>
     * The client (usually an {@link org.apache.stanbol.enhancer.servicesapi.EnhancementJobManager}) should take care of
     * persistent storage of the enhanced {@link org.apache.stanbol.enhancer.servicesapi.ContentItem}.
     *
     * @throws org.apache.stanbol.enhancer.servicesapi.EngineException
     *          if the underlying process failed to work as
     *          expected
     */
@Override
public void computeEnhancements(ContentItem ci) throws EngineException {
    AnalysedText at = getAnalysedText(this, ci, true);
    String language = getLanguage(this, ci, true);
    isLangaugeConfigured(this, languageConfiguration, language, true);
    //init the PhraseBuilder
    ChunkFactory chunkFactory = new ChunkFactoryImpl(at, ci.getLock());
    List<PhraseBuilder> phraseBuilders = new ArrayList<PhraseBuilder>(phraseTypeDefinitions.size());
    for (PhraseTypeDefinition ptd : phraseTypeDefinitions) {
        phraseBuilders.add(new PhraseBuilder(ptd, chunkFactory, minPosScore));
    }
    Iterator<? extends Section> sentences = at.getSentences();
    if (!sentences.hasNext()) {
        //no sentences ... iterate over the whole text
        sentences = Collections.singleton(at).iterator();
    }
    while (sentences.hasNext()) {
        // (1) get Tokens and POS information for the sentence
        Section sentence = sentences.next();
        for (PhraseBuilder pb : phraseBuilders) {
            pb.nextSection(sentence);
        }
        Iterator<Token> tokens = sentence.getTokens();
        while (tokens.hasNext()) {
            Token token = tokens.next();
            for (PhraseBuilder pb : phraseBuilders) {
                pb.nextToken(token);
            }
        }
    }
    //signal the end of the document
    for (PhraseBuilder pb : phraseBuilders) {
        pb.nextSection(null);
    }
//        if(log.isTraceEnabled()){
//            logChunks(at);
//        }
}