Example usage for org.apache.lucene.search.highlight WeightedTerm getTerm

Introduction

In this page you can find the example usage for org.apache.lucene.search.highlight WeightedTerm getTerm.

Prototype

public String getTerm() 

Source Link

Usage

From source file:com.liferay.portal.search.lucene.LuceneHelperImpl.java

License:Open Source License

public String[] getQueryTerms(Query query) {
    String queryString = StringUtil.replace(query.toString(), StringPool.STAR, StringPool.BLANK);

    Query tempQuery = null;/*  w w  w.j  a  v a  2s.c  o m*/

    try {
        QueryParser queryParser = new QueryParser(getVersion(), StringPool.BLANK, getAnalyzer());

        tempQuery = queryParser.parse(queryString);
    } catch (Exception e) {
        if (_log.isWarnEnabled()) {
            _log.warn("Unable to parse " + queryString);
        }

        tempQuery = query;
    }

    WeightedTerm[] weightedTerms = null;

    for (String fieldName : Field.KEYWORDS) {
        weightedTerms = QueryTermExtractor.getTerms(tempQuery, false, fieldName);

        if (weightedTerms.length > 0) {
            break;
        }
    }

    Set<String> queryTerms = new HashSet<String>();

    for (WeightedTerm weightedTerm : weightedTerms) {
        queryTerms.add(weightedTerm.getTerm());
    }

    return queryTerms.toArray(new String[queryTerms.size()]);
}

---

From source file:com.liferay.portal.search.lucene31.LuceneHelperImpl.java

License:Open Source License

public String[] getQueryTerms(Query query) {
    String[] fieldNames = new String[] { Field.CONTENT, Field.DESCRIPTION, Field.PROPERTIES, Field.TITLE,
            Field.USER_NAME };/*from   www .  java  2 s  .c  om*/

    WeightedTerm[] weightedTerms = null;

    for (String fieldName : fieldNames) {
        weightedTerms = QueryTermExtractor.getTerms(query, false, fieldName);

        if (weightedTerms.length > 0) {
            break;
        }
    }

    Set<String> queryTerms = new HashSet<String>();

    for (WeightedTerm weightedTerm : weightedTerms) {
        queryTerms.add(weightedTerm.getTerm());
    }

    return queryTerms.toArray(new String[queryTerms.size()]);
}

---

From source file:it.unibz.instasearch.indexing.Searcher.java

License:Open Source License

/**
 * Extracts search terms and their weights
 * @param query//from w w w. j  a v a2  s .  co  m
 * @return
 */
private static Map<String, Float> extractTerms(Query query) {
    WeightedTerm[] weightedTerms = QueryTermExtractor.getTerms(query, false, Field.CONTENTS.toString());

    Map<String, Float> terms = new HashMap<String, Float>(weightedTerms.length);

    for (WeightedTerm weightedTerm : weightedTerms)
        terms.put(weightedTerm.getTerm(), weightedTerm.getWeight());

    return terms;
}

---

From source file:wvec.DocVec.java

public DocVec(WeightedTerm[] queryTerms, int numClusters) throws Exception {
    wvecMap = new HashMap<>();

    for (WeightedTerm term : queryTerms) {
        WordVec qwv = WordVecs.getVec(term.getTerm());
        if (qwv != null) {
            qwv.normalize();// www . j a  v  a 2 s  . c  o m
            wvecMap.put(qwv.getWord(), qwv);
        }
    }

    List<WordVec> wordList = new ArrayList<>(wvecMap.size());
    for (Map.Entry<String, WordVec> e : wvecMap.entrySet()) {
        wordList.add(e.getValue());
    }

    if (wordList.size() == 0)
        return;

    // Cluster the query word vecs
    clusterer = new KMeansPlusPlusClusterer<>(Math.min(numClusters, wordList.size()));
    List<CentroidCluster<WordVec>> clusters = clusterer.cluster(wordList);

    wvecMap.clear();
    int i = 0;
    for (CentroidCluster<WordVec> c : clusters) {
        Clusterable clusterCenter = c.getCenter();
        WordVec clusterWordVec = new WordVec("Cluster_" + i, clusterCenter.getPoint());
        wvecMap.put(clusterWordVec.getWord(), clusterWordVec);
        i++;
    }
}

---