public static Query rewrite(org.apache.lucene.search.Query q, Set<String> intFields) {
    if (q instanceof TermQuery) {
        return rewrite((TermQuery)q, intFields);
    } else if (q instanceof BooleanQuery) {
        return rewrite((BooleanQuery)q, intFields);
    } else if (q instanceof RangeQuery) {
        return rewrite((RangeQuery)q, intFields);
    } else if (q instanceof ConstantScoreRangeQuery) {
        return rewrite((ConstantScoreRangeQuery)q, intFields);
    } else if (q instanceof PrefixQuery) {
        return rewrite((PrefixQuery)q, intFields);
    } else if (q instanceof PhraseQuery) {
        return rewrite((PhraseQuery)q, intFields);
    }
    throw new IllegalArgumentException("unsupported lucene query type: " + q.getClass().getSimpleName());
}
 

/**
 * This will look to see if "part1" or "part2" are strings of all digits,
 * if they are, then they will be converted to a lexicographically safe string
 * representation, then passed into the inherited getRangeQuery().  This is needed when
 * comparing something like "4" to be less than "10".
 * If the strings don't fit the pattern of all digits, then they get passed through
 * to the inherited getRangeQuery().
 */
protected Query getRangeQuery(String field,
        String part1,
        String part2,
        boolean inclusive) throws ParseException {
    if (isDate(part1) && isDate(part2)) {
        if (log.isDebugEnabled()) {
            log.debug("Detected passed in terms are dates, creating " +
                "ConstantScoreRangeQuery(" + field + ", " + part1 + ", " +
                part2 + ", " + inclusive + ", " + inclusive);
        }
        return new ConstantScoreRangeQuery(field, part1, part2, inclusive,
                inclusive);
    }
    String newPart1 = part1;
    String newPart2 = part2;
    String regEx = "(\\d)*";
    Pattern pattern = Pattern.compile(regEx);
    Matcher matcher1 = pattern.matcher(part1);
    Matcher matcher2 = pattern.matcher(part2);
    if (matcher1.matches() && matcher2.matches()) {
        newPart1 = NumberTools.longToString(Long.parseLong(part1));
        newPart2 = NumberTools.longToString(Long.parseLong(part2));
        if (log.isDebugEnabled()) {
            log.debug("NGramQueryParser.getRangeQuery() Converted " + part1 + " to " +
                newPart1 + ", Converted " + part2 + " to " + newPart2);
        }
    }
    return super.getRangeQuery(field, newPart1, newPart2, inclusive);
}
 

/**
 * This will look to see if "part1" or "part2" are strings of all digits,
 * if they are, then they will be converted to a lexicographically safe string
 * representation, then passed into the inherited getRangeQuery().  This is needed when
 * comparing something like "4" to be less than "10".
 * If the strings don't fit the pattern of all digits, then they get passed through
 * to the inherited getRangeQuery().
 */
protected Query getRangeQuery(String field,
        String part1,
        String part2,
        boolean inclusive) throws ParseException {
    if (isDate(part1) && isDate(part2)) {
        if (log.isDebugEnabled()) {
            log.debug("Detected passed in terms are dates, creating " +
                "ConstantScoreRangeQuery(" + field + ", " + part1 + ", " +
                part2 + ", " + inclusive + ", " + inclusive);
        }
        return new ConstantScoreRangeQuery(field, part1, part2, inclusive,
                inclusive);
    }
    String newPart1 = part1;
    String newPart2 = part2;
    String regEx = "(\\d)*";
    Pattern pattern = Pattern.compile(regEx);
    Matcher matcher1 = pattern.matcher(part1);
    Matcher matcher2 = pattern.matcher(part2);
    if (matcher1.matches() && matcher2.matches()) {
        newPart1 = NumberTools.longToString(Long.parseLong(part1));
        newPart2 = NumberTools.longToString(Long.parseLong(part2));
        if (log.isDebugEnabled()) {
            log.debug("NGramQueryParser.getRangeQuery() Converted " + part1 + " to " +
                newPart1 + ", Converted " + part2 + " to " + newPart2);
        }
    }
    return super.getRangeQuery(field, newPart1, newPart2, inclusive);
}
 

public static Query rewrite(ConstantScoreRangeQuery rq, Set<String> intFields) {
    final Term startTerm = rewriteTerm(new org.apache.lucene.index.Term(rq.getField(), rq.getLowerVal()), intFields);
    final Term endTerm = rewriteTerm(new org.apache.lucene.index.Term(rq.getField(), rq.getUpperVal()), intFields);
    return Query.newRangeQuery(startTerm, endTerm, rq.includesUpper());
}