public Authorizations getAuthorizations() {
    String authorizationStr = tableProperties.getProperty(AUTHORIZATIONS_KEY, null);

    return getAuthorizationsFromValue(authorizationStr);
  }
Extracts the table property to allow dynamic Accumulo Authorizations to be used when reading
data from an Accumulo table. If no Authorizations are provided in the table properties, null is
returned to preserve the functionality to read all data that the current user has access to.

@return The Authorizations that should be used to read data from Accumulo, null if no
        configuration is supplied.
accumulo-handler/src/java/org/apache/hadoop/hive/accumulo/serde/AccumuloSerDeParameters.java