@Produces(MediaType.APPLICATION_JSON)
public Response isReady()
{
if (nems == null)
{
nems = new SimpleSqlEms();
List<EnergyManagementSystemInterface.Capability> capabilities =
new LinkedList<EnergyManagementSystemInterface.Capability>();
capabilities.add(EnergyManagementSystemInterface.Capability.SupportsObjectEnabling);
capabilities.add(EnergyManagementSystemInterface.Capability.ProvidesConfiguration);
capabilities.add(EnergyManagementSystemInterface.Capability.ProvidesKeyValueStorage);