this.dnsResolver = dnsResolver;
    }

    /**
     * Sets the SSL socket factory.
     * @param sslSocketFactory The SSL socket factory.
     */
    public void setSslSocketFactory(final LayeredConnectionSocketFactory sslSocketFactory) {
        this.sslSocketFactory = sslSocketFactory;
    }

    /**

            try {
                final SSLContext sslContext = SSLContextBuilder.create().loadTrustMaterial(TrustAllStrategy.INSTANCE).build();
                builder.setSSLSocketFactory(SSLConnectionSocketFactoryBuilder.create()
                        .setSslContext(sslContext)
                        .setHostnameVerifier((hostname, session) -> true)
                        .build());