private ServiceComponentHostRequest getRequest(Map<String, Object> properties) {
    return new ServiceComponentHostRequest(
            (String) properties.get(COMPONENT_CLUSTER_NAME_PROPERTY_ID),
            (String) properties.get(COMPONENT_SERVICE_NAME_PROPERTY_ID),
            (String) properties.get(COMPONENT_COMPONENT_NAME_PROPERTY_ID),
            (String) properties.get(HOST_COMPONENT_HOST_NAME_PROPERTY_ID),
            null);
  }
Get a component request object from a map of property values.

@param properties the predicate
@return the component request object
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/ClientConfigResourceProvider.java