public static boolean compareSubstring()

in repository/service/src/main/java/org/apache/karaf/cave/repository/service/bundlerepository/SimpleFilter.java [416:471]

• 30 lines of code
• 10 McCabe index (conditional complexity)

    public static boolean compareSubstring(List<String> pieces, String s) {
        // Walk the pieces to match the string
        // There are implicit stars between each piece,
        // and the first and last pieces might be "" to anchor the match.
        // assert (pieces.length > 1)
        // minimal case is <string>*<string>

        boolean result = true;
        int len = pieces.size();

        // Special case, if there is only one piece, then
        // we must perform an equality test.
        if (len == 1) {
            return s.equals(pieces.get(0));
        }

        // Otherwise, check whether the pieces match
        // the specified string.

        int index = 0;

        for (int i = 0; i < len; i++) {
            String piece = pieces.get(i);

            // If this is the first piece, then make sure the
            // string starts with it.
            if (i == 0) {
                if (!s.startsWith(piece)) {
                    result = false;
                    break;
                }
            }

            // If this is the last piece, then make sure the
            // string ends with it.
            if (i == (len - 1)) {
                result = s.endsWith(piece) && (s.length() >= (index + piece.length()));
                break;
            }

            // If this is neither the first or last piece, then
            // make sure the string contains it.
            if ((i > 0) && (i < (len - 1))) {
                index = s.indexOf(piece, index);
                if (index < 0) {
                    result = false;
                    break;
                }
            }

            // Move string index beyond the matching piece.
            index += piece.length();
        }

        return result;
    }