private Key getKey()

in src/main/java/org/apache/sling/discovery/base/connectors/ping/TopologyRequestValidator.java [493:505]

• 13 lines of code
• 3 McCabe index (conditional complexity)

    private Key getKey(int keyNo) throws UnsupportedEncodingException {
        if(Math.abs(keyNo - getCurrentKey()) > 1 ) {
            throw new IllegalArgumentException("Key has expired");
        }
        if (keys.containsKey(keyNo)) {
            return keys.get(keyNo);
        }
        trimKeys();
        SecretKeySpec key = new SecretKeySpec(hash(sharedKey + keyNo).getBytes("UTF-8"),
            "HmacSHA256");
        keys.put(keyNo, key);
        return key;
    }