private String getFullPathToSearchEngine(String clusterName) {
    return CLUSTERS_PATH + "/" + clusterName + PATH_TO_SEARCH_ENGINE;
  }
Get the relevant cluster's resource ID.

@param clusterName a cluster name
@return a resource ID or <code>null</code> if the cluster is not found
ambari-server/src/main/java/org/apache/ambari/server/controller/logging/LoggingSearchPropertyProvider.java