Examples with FuzzyQueryNode org.apache.lucene.queryparser.flexible.core.nodes.FuzzyQueryNode used on opensource projects

Example 6 with FuzzyQueryNode

use of org.apache.lucene.queryparser.flexible.core.nodes.FuzzyQueryNode in project lucene-solr by apache.

the class FuzzyQueryNodeProcessor method preProcessNode.

@Override
protected QueryNode preProcessNode(QueryNode node) throws QueryNodeException {
    if (node instanceof FuzzyQueryNode) {
        FuzzyQueryNode fuzzyNode = (FuzzyQueryNode) node;
        QueryConfigHandler config = getQueryConfigHandler();
        Analyzer analyzer = getQueryConfigHandler().get(ConfigurationKeys.ANALYZER);
        if (analyzer != null) {
            // because we call utf8ToString, this will only work with the default TermToBytesRefAttribute
            String text = fuzzyNode.getTextAsString();
            text = analyzer.normalize(fuzzyNode.getFieldAsString(), text).utf8ToString();
            fuzzyNode.setText(text);
        }
        FuzzyConfig fuzzyConfig = null;
        if ((fuzzyConfig = config.get(ConfigurationKeys.FUZZY_CONFIG)) != null) {
            fuzzyNode.setPrefixLength(fuzzyConfig.getPrefixLength());
            if (fuzzyNode.getSimilarity() < 0) {
                fuzzyNode.setSimilarity(fuzzyConfig.getMinSimilarity());
            }
        } else if (fuzzyNode.getSimilarity() < 0) {
            throw new IllegalArgumentException("No FUZZY_CONFIG set in the config");
        }
    }
    return node;
}