private void parseProperties() throws HdfsApiException {
    String auth;
    auth = context.getProperties().get("webhdfs.auth");

    if (Strings.isNullOrEmpty(auth)) {
      if (context.getCluster() != null) {
        auth = getConfigurationFromAmbari();
      } else {
        auth = "auth=SIMPLE";
        LOG.warn(String.format("HDFS090 Authentication parameters could not be determined. %s assumed.", auth));
      }
    }
    LOG.debug("Hdfs auth params : {}", auth);
    parseAuthString(auth);
  }
Converts auth params as semicolon separated string to Map.
If auth params are not provided, tries to determine them
from Ambari configuration.
contrib/views/utils/src/main/java/org/apache/ambari/view/utils/hdfs/AuthConfigurationBuilder.java