Get the names of all the reservations of a compute resource in a vRA IaaS instance

getReservationNamesOfComputeResource.js

// VMware vRealize Orchestrator action sample
//
// Get the names of all the reservations of a compute resource in a vRA IaaS instance
// 
// For vRO/VRA 7.0+
//
// Action Inputs:
// host - vCAC:VCACHost - vRA IaaS Host
// computeResourceName - string - Compute resource name
// onlyEnabledReservations - boolean - Set to true to only return the names of enabled reservations
//
// Return type: Array/strings - names of reservations

if (vcacHost == null) return null;
var reservationNames = [];
var computeResourceEntity = getComputeResourceEntity(vcacHost, computeResourceName);
var reservationEntities  = computeResourceEntity.getLink(vcacHost, "HostReservations");

if (reservationEntities.length !== 0) {
	for each (var r in reservationEntities) {
		if (onlyEnabledReservations) {
			if (r.getProperty("Enabled") == true) {
				reservationNames.push(r.getProperty("HostReservationName"));
			}
		} else {
			reservationNames.push(r.getProperty("HostReservationName"));
		}
	}
}

return reservationNames;


function getComputeResourceEntity(host, name) {
	var model = "ManagementModelEntities.svc";
	var entitySetName = "Hosts";
	var filter = "MachineType eq 0 and IsVRMManaged eq true and HostName eq '" + name + "'";
	var entities = vCACEntityManager.readModelEntitiesBySystemQuery(host.id, model, entitySetName, filter);
	
	if (entities.length === 0) {
		throw "No compute resource entity found with name '" + name + "'";
	}
	
	if (entities.length > 1) {
		throw "Too many compute resource entities found with name '" + name + "'";
	}
	
	return entities[0];
}