Example usage for org.apache.lucene.search.uhighlight Passage getMatchStarts

Introduction

In this page you can find the example usage for org.apache.lucene.search.uhighlight Passage getMatchStarts.

Prototype

public int[] getMatchStarts() 

Source Link

Document

Start offsets of the term matches, in increasing order.

Usage

From source file:org.opengrok.indexer.search.context.PassageConverter.java

License:Open Source License

/**
 * Converts the specified passages into a sorted map of
 * {@link LineHighlight} instances keyed by line offsets.
 * @param passages a defined instance//w ww  . ja v a2 s.c  o  m
 * @param splitter a defined instance
 * @return a defined instance
 */
public SortedMap<Integer, LineHighlight> convert(Passage[] passages, SourceSplitter splitter) {

    SortedMap<Integer, LineHighlight> res = new TreeMap<>();
    for (Passage passage : passages) {
        int start = passage.getStartOffset();
        int end = passage.getEndOffset();
        if (start >= end) {
            continue;
        }

        int m = splitter.findLineOffset(start);
        if (m < 0) {
            continue;
        }
        int n = splitter.findLineOffset(end - 1);
        if (n < 0) {
            continue;
        }

        m = Math.max(0, m - args.getContextSurround());
        n = Math.min(splitter.count() - 1, n + args.getContextSurround());

        // Ensure an entry in `res' for every passage line.
        for (int i = m; i <= n; ++i) {
            if (!res.containsKey(i)) {
                res.put(i, new LineHighlight(i));
            }
        }

        // Create LineHighlight entries for passage matches.
        for (int i = 0; i < passage.getNumMatches(); ++i) {
            int mstart = passage.getMatchStarts()[i];
            int mm = splitter.findLineOffset(mstart);
            int mend = passage.getMatchEnds()[i];
            int nn = splitter.findLineOffset(mend - 1);
            if (mstart < mend && mm >= m && mm <= n && nn >= m && nn <= n) {
                if (mm == nn) {
                    int lbeg = splitter.getPosition(mm);
                    int lstart = mstart - lbeg;
                    int lend = mend - lbeg;
                    LineHighlight lhigh = res.get(mm);
                    lhigh.addMarkup(PhraseHighlight.create(lstart, lend));
                } else {
                    int lbeg = splitter.getPosition(mm);
                    int loff = mstart - lbeg;
                    LineHighlight lhigh = res.get(mm);
                    lhigh.addMarkup(PhraseHighlight.createStarter(loff));

                    lbeg = splitter.getPosition(nn);
                    loff = mend - lbeg;
                    lhigh = res.get(nn);
                    lhigh.addMarkup(PhraseHighlight.createEnder(loff));

                    /*
                     * Designate any intermediate lines as
                     * wholly-highlighted
                     */
                    for (int j = mm + 1; j <= nn - 1; ++j) {
                        lhigh = res.get(j);
                        lhigh.addMarkup(PhraseHighlight.createEntire());
                    }
                }
            }
        }
    }

    /*
     * Condense PhraseHighlight instances within lines, and elide as
     * necessary to the reportable length.
     */
    for (LineHighlight lhi : res.values()) {
        lhi.condenseMarkups();
        String line = splitter.getLine(lhi.getLineno());
        Matcher eolMatcher = StringUtils.STANDARD_EOL.matcher(line);
        if (eolMatcher.find()) {
            line = line.substring(0, eolMatcher.start());
        }
        elideLine(lhi, line);
    }

    return res;
}

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From source file:org.opensolaris.opengrok.search.context.PassageConverter.java

License:Open Source License

/**
 * Converts the specified passages into a sorted map of
 * {@link LineHighlight} instances keyed by line offsets.
 * @param passages a defined instance/*from  ww w. j av a  2s . c om*/
 * @param splitter a defined instance
 * @return a defined instance
 */
public SortedMap<Integer, LineHighlight> convert(Passage[] passages, SourceSplitter splitter) {

    SortedMap<Integer, LineHighlight> res = new TreeMap<>();
    for (Passage passage : passages) {
        int start = passage.getStartOffset();
        int end = passage.getEndOffset();
        if (start >= end) {
            continue;
        }

        int m = splitter.findLineOffset(start);
        if (m < 0) {
            continue;
        }
        int n = splitter.findLineOffset(end - 1);
        if (n < 0) {
            continue;
        }

        m = Math.max(0, m - args.getContextSurround());
        n = Math.min(splitter.count() - 1, n + args.getContextSurround());

        // Ensure an entry in `res' for every passage line.
        for (int i = m; i <= n; ++i) {
            if (!res.containsKey(i)) {
                res.put(i, new LineHighlight(i));
            }
        }

        // Create LineHighlight entries for passage matches.
        for (int i = 0; i < passage.getNumMatches(); ++i) {
            int mstart = passage.getMatchStarts()[i];
            int mm = splitter.findLineOffset(mstart);
            int mend = passage.getMatchEnds()[i];
            int nn = splitter.findLineOffset(mend - 1);
            if (mstart < mend && mm >= m && mm <= n && nn >= m && nn <= n) {
                if (mm == nn) {
                    int lbeg = splitter.getPosition(mm);
                    int lstart = mstart - lbeg;
                    int lend = mend - lbeg;
                    LineHighlight lhigh = res.get(mm);
                    lhigh.addMarkup(PhraseHighlight.create(lstart, lend));
                } else {
                    int lbeg = splitter.getPosition(mm);
                    int loff = mstart - lbeg;
                    LineHighlight lhigh = res.get(mm);
                    lhigh.addMarkup(PhraseHighlight.createStarter(loff));

                    lbeg = splitter.getPosition(nn);
                    loff = mend - lbeg;
                    lhigh = res.get(nn);
                    lhigh.addMarkup(PhraseHighlight.createEnder(loff));

                    /*
                     * Designate any intermediate lines as
                     * wholly-highlighted
                     */
                    for (int j = mm + 1; j <= nn - 1; ++j) {
                        lhigh = res.get(j);
                        lhigh.addMarkup(PhraseHighlight.createEntire());
                    }
                }
            }
        }
    }

    /*
     * Condense PhraseHighlight instances within lines, and elide as
     * necessary to the reportable length.
     */
    for (LineHighlight lhi : res.values()) {
        lhi.condenseMarkups();
        String line = splitter.getLine(lhi.getLineno());
        elideLine(lhi, line);
    }

    return res;
}

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