Examples with RuleBasedCollator java.text.RuleBasedCollator used on opensource projects

Example 11 with RuleBasedCollator

use of java.text.RuleBasedCollator in project lucene-solr by apache.

the class CollationField method createFromRules.

/**
   * Read custom rules from a file, and create a RuleBasedCollator
   * The file cannot support comments, as # might be in the rules!
   */
private Collator createFromRules(String fileName, ResourceLoader loader) {
    InputStream input = null;
    try {
        input = loader.openResource(fileName);
        String rules = IOUtils.toString(input, "UTF-8");
        return new RuleBasedCollator(rules);
    } catch (IOException | ParseException e) {
        // io error or invalid rules
        throw new RuntimeException(e);
    } finally {
        IOUtils.closeQuietly(input);
    }
}