@Override
  public String getPluralName() {
    return pluralName;
  }
Constructor.

@param resourceType the resource type
@param singularName the resource singular name
@param pluralName   the resource plural name
@param subTypes     the sub-resource types
@param directives   the a map of directives for the different request types
ambari-server/src/main/java/org/apache/ambari/server/api/resources/SimpleResourceDefinition.java