public override Object CollectData(IDictionary <String, Object> args)
{
using (var vmMgmt = WMIHelper.GetFirstInstance(WMI_Namespace, WMI_Class_Msvm_VirtualSystemManagementService))
using (var vm = WMIHelper.QueryFirstInstacne(WMI_Namespace, WMI_Class_Msvm_ComputerSystem,
String.Format("Name='{0}'", args["VirtualMachineName"])))
using (var vmSettings = vm.GetRelated(WMI_Class_Msvm_VirtualSystemSettingData))
using (var inParams = vmMgmt.GetMethodParameters(WMI_Method_GetSummaryInformation))
{
String[] settingDataPath = new String[vmSettings.Count];
int i = 0;
foreach (ManagementObject vmSetting in vmSettings)
{
settingDataPath[i++] = vmSetting.Path.Path;
break;
}
var data = new Dictionary <String, Object>()
{
{ KeyName_MemoryUsage, null },
{ KeyName_MemoryAvailable, null },
{ KeyName_AvailableMemoryBuffer, null },
};
if (settingDataPath.Length != 0)
{
inParams["SettingData"] = settingDataPath;
inParams["RequestedInformation"] = new UInt32[]
{
RequestedInformation_MemoryUsage,
RequestedInformation_MemoryAvailable,
RequestedInformation_AvaiableMemoryBuffer
};
var outParams = vmMgmt.InvokeMethod(WMI_Method_GetSummaryInformation, inParams, null);
if ((UInt32)outParams["ReturnValue"] == 0)//Completed
{
var summaryInfoList = (ManagementBaseObject[])outParams["SummaryInformation"];
var summaryInfo = summaryInfoList.FirstOrDefault();
data[KeyName_MemoryUsage] = summaryInfo[KeyName_MemoryUsage];
data[KeyName_MemoryAvailable] = summaryInfo[KeyName_MemoryAvailable];
data[KeyName_AvailableMemoryBuffer] = summaryInfo[KeyName_AvailableMemoryBuffer];
}
else
{
throw new ManagementException(String.Format("Method {0} returns error:{1}", WMI_Method_GetSummaryInformation,
(UInt32)outParams["ReturnValue"]));
}
}
return(data);
}
}
