public OpenSslJnaCryptoRandom()

in src/main/java/org/apache/commons/crypto/jna/OpenSslJnaCryptoRandom.java [60:90]

• 26 lines of code
• 7 McCabe index (conditional complexity)

    public OpenSslJnaCryptoRandom(final Properties props) //NOPMD
            throws GeneralSecurityException {
        if (!OpenSslJna.isEnabled()) {
            throw new GeneralSecurityException("Could not enable JNA access", OpenSslJna.initialisationError());
        }

        boolean rdrandLoaded = false;
        try {
            OpenSslNativeJna.ENGINE_load_rdrand();
            rdrandEngine = OpenSslNativeJna.ENGINE_by_id("rdrand");
            if (rdrandEngine != null) {
                final int rc = OpenSslNativeJna.ENGINE_init(rdrandEngine);

                if (rc != 0) {
                    final int rc2 = OpenSslNativeJna.ENGINE_set_default(rdrandEngine, ENGINE_METHOD_RAND);
                    if (rc2 != 0) {
                        rdrandLoaded = true;
                    }
                }
            }

        } catch (final Exception e) {
            throw new NoSuchAlgorithmException();
        }

        rdrandEnabled = rdrandLoaded;

        if (!rdrandLoaded) {
            closeRdrandEngine(false);
        }
    }