private boolean isComponentNameNode() {
      return component.equals("NAMENODE");
    }
Utility method to determine if the component associated with this updater
instance is an HDFS NameNode

@return true if the component associated is a NameNode
        false if the component is not a NameNode
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/BlueprintConfigurationProcessor.java