}
if (request.hasParam("metric")) {
EnumSet<ClusterState.Metric> metrics = ClusterState.Metric.parseString(request.param("metric"), true);
// do not ask for what we do not need.
clusterStateRequest.nodes(metrics.contains(ClusterState.Metric.NODES) || metrics.contains(ClusterState.Metric.MASTER_NODE));
clusterStateRequest.routingTable(metrics.contains(ClusterState.Metric.ROUTING_TABLE));
clusterStateRequest.metaData(metrics.contains(ClusterState.Metric.METADATA));
clusterStateRequest.blocks(metrics.contains(ClusterState.Metric.BLOCKS));
}