public void PollCycle()
{
Metrics.Add("event_type", PerfmonPlugin.DefaultEvent);
var metricNames = new Dictionary <string, int>();
// Working backwards so we can safely delete queries that fail because of invalid classes.
for (int i = PerfmonQueries.Count - 1; i >= 0; i--)
{
var thisQuery = PerfmonQueries[i];
try
{
if (thisQuery.counterOrQuery is PerformanceCounter)
{
try
{
Debug("Collecting Perf Counter: " + ((PerformanceCounter)thisQuery.counterOrQuery).ToString());
float value = ((PerformanceCounter)thisQuery.counterOrQuery).NextValue();
string metricName = thisQuery.metricName;
if (!float.IsNaN(value))
{
if (metricNames.ContainsKey(metricName))
{
metricName = metricName + "#" + metricNames[metricName]++;
}
else
{
metricNames.Add(metricName, 1);
}
Debug(string.Format("{0}/{1}: {2}", Name, metricName, value));
Metrics.Add(metricName, value);
}
}
catch (Exception e)
{
Console.Error.WriteLine("Exception occurred in processing next value. {0}\r\n{1}", e.Message, e.StackTrace);
}
}
else if (thisQuery.counterOrQuery is string)
{
try
{
string scopeString = "\\\\" + Name + "\\" + thisQuery.queryNamespace;
if (Scope == null)
{
Debug("Setting up scope: " + scopeString);
Scope = new ManagementScope(scopeString);
}
else if (Scope != null && !Scope.Path.ToString().Equals(scopeString))
{
Debug("Updating Scope Path from " + Scope.Path + " to " + scopeString);
Scope = new ManagementScope(scopeString);
}
if (!Scope.IsConnected)
{
Debug("Connecting to scope: " + scopeString);
Scope.Connect();
}
}
catch (Exception e)
{
Console.Error.WriteLine("Unable to connect to \"{0}\". {1}", Name, e.Message);
continue;
}
if (thisQuery.queryType.Equals(WMIQuery))
{
Debug("Running Query: " + (string)thisQuery.counterOrQuery);
var queryResults = (new ManagementObjectSearcher(Scope,
new ObjectQuery((string)thisQuery.counterOrQuery))).Get();
foreach (ManagementObject result in queryResults)
{
{
RecordMetricMap(thisQuery, result);
continue;
}
}
}
else if (thisQuery.queryType.Equals(WMIEvent))
{
Debug("Running Event Listener: " + thisQuery.counterOrQuery);
var watcher = new ManagementEventWatcher(Scope,
new EventQuery((string)thisQuery.counterOrQuery)).WaitForNextEvent();
RecordMetricMap(thisQuery, watcher);
}
}
}
catch (ManagementException e)
{
Console.Error.WriteLine("Exception occurred in polling. {0}: {1}", e.Message, (string)thisQuery.counterOrQuery);
if (e.Message.ToLower().Contains("invalid class") || e.Message.ToLower().Contains("not supported"))
{
Console.Error.WriteLine("Query Removed: {0}", thisQuery.counterOrQuery);
PerfmonQueries.RemoveAt(i);
}
}
catch (Exception e)
{
Console.Error.WriteLine("Exception occurred in processing results. {0}\r\n{1}", e.Message, e.StackTrace);
}
}
ReportAll();
}
public void AddCounter(Counterlist aCounter, int whichCounter)
{
if (!String.IsNullOrEmpty(aCounter.query))
{
if (aCounter.counters != null)
{
foreach (var testCounter in aCounter.counters)
{
if (String.IsNullOrEmpty(testCounter.counter))
{
Console.Error.WriteLine("plugin.json contains malformed counter: counterlist[{0}] missing 'counter' in 'counters'. Please review and compare to template.", whichCounter);
return;
}
}
PerfmonQueries.Add(new PerfmonQuery(aCounter.query, aCounter.eventname, aCounter.querytype, aCounter.querynamespace, aCounter.counters));
}
else
{
PerfmonQueries.Add(new PerfmonQuery(aCounter.query, aCounter.eventname, aCounter.querytype, aCounter.querynamespace, null));
}
return;
}
if (String.IsNullOrEmpty(aCounter.provider) || String.IsNullOrEmpty(aCounter.category))
{
Console.Error.WriteLine("plugin.json contains malformed counter: counterlist[{0}] missing 'provider' or 'category'. Please review and compare to template.", whichCounter);
return;
}
string instanceName = string.Empty;
if (!String.IsNullOrEmpty(aCounter.instance) && !String.Equals(aCounter.instance, "*"))
{
instanceName = aCounter.instance.ToString();
}
if (aCounter.counters != null)
{
int whichSubCounter = -1;
string countersStr = "";
foreach (var aSubCounter in aCounter.counters)
{
whichSubCounter++;
if (String.IsNullOrEmpty(aSubCounter.counter))
{
Console.Error.WriteLine("plugin.json contains malformed counter: 'counters' in counterlist[{0}] missing 'counter' in element {1}. Please review and compare to template.", whichCounter, whichSubCounter);
continue;
}
else
{
if (String.IsNullOrEmpty(countersStr))
{
countersStr = aSubCounter.counter;
}
else
{
countersStr += (", " + aSubCounter.counter);
}
}
}
if (!String.IsNullOrEmpty(countersStr))
{
PerfmonQueries.Add(new PerfmonQuery(aCounter.provider, aCounter.category, countersStr, instanceName));
}
}
else
{
Console.Error.WriteLine("plugin.json contains malformed counter: counterlist[{0}] missing 'counters'. Please review and compare to template.", whichCounter);
}
}
