@Override
public DefaultHttpClient create(final HttpMethod method, final URI uri) {
  final TrustStrategy acceptTrustStrategy = new TrustStrategy() {
    @Override
    public boolean isTrusted(final X509Certificate[] certificate, final String authType) {
      return true;
    }
  };

  final SchemeRegistry registry = new SchemeRegistry();
  try {
    final SSLSocketFactory ssf =
            new SSLSocketFactory(acceptTrustStrategy, SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
    registry.register(new Scheme(uri.getScheme(), uri.getPort(), ssf));
  } catch (Exception e) {
    throw new ODataRuntimeException(e);
  }

  final DefaultHttpClient httpClient = new DefaultHttpClient(new BasicClientConnectionManager(registry));
  httpClient.getParams().setParameter(CoreProtocolPNames.USER_AGENT, USER_AGENT);

  return httpClient;
}
 

protected void initClient(DatabricksServiceFactory.Builder builder) {
  try {

    SSLContext sslContext = SSLContext.getInstance("TLSv1.2");
    sslContext.init(null, null, new SecureRandom());

    SSLSocketFactory sf = new SSLSocketFactory(sslContext);
    Scheme httpsScheme = new Scheme("https", HTTPS_PORT, sf);
    SchemeRegistry schemeRegistry = new SchemeRegistry();
    schemeRegistry.register(httpsScheme);
    ClientConnectionManager cm = new BasicClientConnectionManager(schemeRegistry);

    HttpParams params = new BasicHttpParams();
    HttpConnectionParams.setConnectionTimeout(params, builder.getConnectionTimeout());
    HttpConnectionParams.setSoTimeout(params, builder.getSoTimeout());

    DefaultHttpClient defaultHttpClient = new DefaultHttpClient(cm, params);
    defaultHttpClient.setHttpRequestRetryHandler(retryHandler);

    // set authorization header if token base
    if (isNotEmpty(builder.getToken())) {
      isTokenAuth = true;
      authToken = builder.getToken();

    } else if (isNotEmpty(builder.getUsername()) && isNotEmpty(builder.getPassword())) {
      defaultHttpClient.getCredentialsProvider().setCredentials(
          new AuthScope(host, HTTPS_PORT),
          new UsernamePasswordCredentials(builder.getUsername(), builder.getPassword()));
    }

    client = new AutoRetryHttpClient(defaultHttpClient, retryStrategy);

  } catch (Exception e) {
    logger.error("", e);
  }

  url = String.format("https://%s/api/%s", host, apiVersion);
  mapper = new ObjectMapper().setSerializationInclusion(JsonInclude.Include.NON_DEFAULT);
}
 

@Override
public CloseableHttpClient newInstance() {
  try {
    final SSLSocketFactory socketFactory = new SSLSocketFactory(this.getSSLContext());
    socketFactory.setHostnameVerifier(new UnsafeHostNameVerifier());
    final SchemeRegistry schemeRegistry = new SchemeRegistry();
    schemeRegistry.register(new Scheme("https", 443, socketFactory));
    final ClientConnectionManager clientConnectionManager = new BasicClientConnectionManager(schemeRegistry);
    return new DefaultHttpClient(clientConnectionManager);
  } catch (final KeyManagementException | NoSuchAlgorithmException ex) {
    throw new RuntimeException("Unable to instantiate HTTP Client", ex);
  }
}