/// <summary>
///
/// </summary>
/// <param name="args">Named arguments used in "Where" field of WQL query</param>
/// <returns></returns>
public override Object CollectData(IDictionary <String, Object> args)
{
if (args == null)
{
throw new ArgumentNullException("args");
}
if (this.conf.PerfCounters == null)
{
return(null);
}
String condition = String.Empty;
condition = NamedArgumentHelper.Resolve(this.conf.Where, this.conf.WhereArgs, args);
if (this.conf.PerfCounters == null || this.conf.PerfCounters.Count == 0)
{
return(null);
}
using (var result = WMIHelper.QueryInstacnes(this.conf.Namespace, this.conf.From, condition, this.selectedProperties))
{
var mgmtObjs = result.Cast <ManagementObject>();
if (this.conf.ReturnValueType == MgmtObjectReturnValueType.Single)
{
var mgmtObj = mgmtObjs.FirstOrDefault();
return(SelectPerfCounter(mgmtObj, args));
}
else
{
var list = new List <Object>();
foreach (var mgmtObj in mgmtObjs)
{
list.Add(SelectPerfCounter(mgmtObj, args));
}
return(list);
}
}
}
