private String determineRulesetFilename()

in src/main/java/org/apache/maven/plugins/pmd/PmdReport.java [426:449]

• 20 lines of code
• 8 McCabe index (conditional complexity)

    private String determineRulesetFilename(String ruleset) {
        String result = ruleset.trim();
        String lowercase = result.toLowerCase(Locale.ROOT);
        if (lowercase.startsWith("http://") || lowercase.startsWith("https://") || lowercase.endsWith(".xml")) {
            return result;
        }

        // assume last part is a single rule, e.g. myruleset.xml/SingleRule
        if (result.indexOf('/') > -1) {
            String rulesetFilename = result.substring(0, result.lastIndexOf('/'));
            if (rulesetFilename.toLowerCase(Locale.ROOT).endsWith(".xml")) {
                return rulesetFilename;
            }
        }
        // maybe a built-in ruleset name, e.g. java-design -> rulesets/java/design.xml
        int dashIndex = lowercase.indexOf('-');
        if (dashIndex > -1 && lowercase.indexOf('-', dashIndex + 1) == -1) {
            String language = result.substring(0, dashIndex);
            String rulesetName = result.substring(dashIndex + 1);
            return "rulesets/" + language + "/" + rulesetName + ".xml";
        }
        // fallback - no change of the given ruleset specifier
        return result;
    }