Example usage for org.apache.lucene.search.suggest.analyzing FreeTextSuggester build

Introduction

In this page you can find the example usage for org.apache.lucene.search.suggest.analyzing FreeTextSuggester build.

Prototype

@Override
    public void build(InputIterator iterator) throws IOException 

Source Link

Usage

From source file:spimedb.SpimeDB.java

License:Apache License

@Nullable
private Lookup suggester() {

    Lookup suggester = this.suggester;

    if (suggester == null || lastWrite - lastSuggesterCreated > minSuggesterUpdatePeriod) {
        suggester = null; //re-create since it is invalidated

        Lock l = locker.lock("_suggester");

        try {/*from   w w w .j  av a2  s .c  o m*/
            if (this.suggester != null)
                return this.suggester; //created while waiting for the lock

            FreeTextSuggester nextSuggester = new FreeTextSuggester(new SimpleAnalyzer());

            read((nameDictReader) -> {

                if (nameDictReader.maxDoc() == 0)
                    return;

                DocumentDictionary nameDict = new DocumentDictionary(nameDictReader, NObject.NAME,
                        NObject.NAME);

                Stopwatch time = Stopwatch.createStarted();

                try {
                    nextSuggester.build(nameDict);
                } catch (IOException f) {
                    logger.error("suggester build {}", f);
                }

                this.suggester = nextSuggester;

                lastSuggesterCreated = now();
                logger.info("suggester built size={} {}ms", nextSuggester.getCount(),
                        time.elapsed(MILLISECONDS));

                //time.reset();

                //                    FacetsCollector fc = new FacetsCollector();
                //                    FacetsCollector.search(new IndexSearcher(nameDictReader), new MatchAllDocsQuery(), Integer.MAX_VALUE,
                //                            fc
                //                    );
                //                    logger.info("facets updated, count={} {}ms", fc., time.elapsed(MILLISECONDS));

            });

            return this.suggester;
        } finally {
            l.unlock();
        }

    } else {
        return suggester;
    }

}

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