Example usage for org.apache.lucene.misc TermStats toString

Introduction

In this page you can find the example usage for org.apache.lucene.misc TermStats toString.

Prototype

@Override
    public String toString() 

Source Link

Usage

From source file:eu.eexcess.sourceselection.redde.indexer.topterm.IndexHelper.java

License:Apache License

/**
 * returns the top n (to-startFrom+1) terms beginning with startFrom
 * /* ww w . j av a 2 s  .  c om*/
 * @param startFrom
 *            first term
 * @param to
 *            lastTerm
 * @return
 * @throws Exception
 */
protected String[] getTopTerms(int startFrom, int to) throws Exception {
    int numTerms = to - startFrom + 1;
    String[] termNames = null;
    TermStats[] terms = HighFreqTerms.getHighFreqTerms(inIndexReader, to + 1, fieldOfInterest,
            new HighFreqTerms.DocFreqComparator());

    termNames = new String[numTerms];
    int idx = 0;
    for (TermStats term : terms) {
        String termDetails = term.toString();
        int startIndex = termDetails.lastIndexOf(termVariableName) + termVariableName.length();
        int endIndex = termDetails.indexOf(" ", startIndex);
        termNames[idx++] = termDetails.substring(startIndex, endIndex);
        if (idx >= numTerms) {
            break;
        }
    }
    return termNames;
}

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