getList method in ConfigurationUtil

gistfile1.java

   /**
     * Returns the value of key as a String list. For example, it would return
     * my_property = [ "first_element", "second_element" ]
     * as new ArrayList<String>(){{ add("first_element"); add("second_element") }};
     * @param key The key to return
     * @return The List of values
     */
    public static List<String> getList(String key) {
        final List<String> result = new ArrayList<String>();
        String rawString = getConfig(key);
        final List<String> unprocessedArray = 
                Arrays.asList(StringUtils.split((String) rawString, ","));
        for (final String s : unprocessedArray) {
            result.add(cleanupArrayString(s));
        }
        return result;
    }

    private static String cleanupArrayString(final String s) {
        /*
         * We need to clean the collection strings because by using the
         * toProperties method of the ConfigSlurper, the array elements get
         * spaces and the '[' and ']' characters
         */
        String result = StringUtils.trim(s);
        result = StringUtils.removeStart(result, "[");
        result = StringUtils.removeEnd(result, "]");
        return result;
    }