public IEnumerable <IMetricDefinition> GetMetricDefinitions()
{
byte[] buffer;
using (var webClient = new WebClient())
{
if (credentials != null)
{
webClient.Credentials = credentials;
}
buffer = webClient.DownloadData(uri);
} // using
Overview overview;
using (var memoryStream = new MemoryStream(buffer))
overview = (Overview)jsonSerializer.ReadObject(memoryStream);
Func <string, Func <double>, MetricDefinition> metricDefinition =
(s, vp) => new MetricDefinition(MetricNameBuilder.BuildMetricName(name, s), vp, aggregationStrategy);
yield return(metricDefinition("message_stats.ack", () => overview.MessageStats.Ack));
yield return(metricDefinition("message_stats.ack_details.rate", () => overview.MessageStats.AckDetails.Rate));
yield return(metricDefinition("message_stats.deliver", () => overview.MessageStats.Deliver));
yield return(metricDefinition("message_stats.deliver_details.rate", () => overview.MessageStats.DeliverDetails.Rate));
yield return(metricDefinition("message_stats.redeliver", () => overview.MessageStats.Redeliver));
yield return(metricDefinition("message_stats.redeliver_details.rate", () => overview.MessageStats.RedeliverDetails.Rate));
yield return(metricDefinition("queue_totals.messages", () => overview.QueueTotals.Messages));
yield return(metricDefinition("queue_totals.messages_details.rate", () => overview.QueueTotals.MessagesDetails.Rate));
yield return(metricDefinition("queue_totals.messages_ready", () => overview.QueueTotals.MessagesReady));
yield return(metricDefinition("queue_totals.messages_ready_details.rate", () => overview.QueueTotals.MessagesReadyDetails.Rate));
yield return(metricDefinition("queue_totals.messages_unacknowledged", () => overview.QueueTotals.MessagesUnacknowledged));
yield return(metricDefinition("queue_totals.messages_unacknowledged_details.rate", () => overview.QueueTotals.MessagesUnacknowledgedDetails.Rate));
yield return(metricDefinition("object_totals.consumers", () => overview.ObjectTotals.Consumers));
yield return(metricDefinition("object_totals.queues", () => overview.ObjectTotals.Queues));
yield return(metricDefinition("object_totals.exchanges", () => overview.ObjectTotals.Exchanges));
yield return(metricDefinition("object_totals.connections", () => overview.ObjectTotals.Connections));
yield return(metricDefinition("object_totals.channels", () => overview.ObjectTotals.Channels));
}
internal static string NormalizeWcfPerformanceCounterName(string counterName)
{
//
// See this:
// * https://msdn.microsoft.com/en-us/library/ms731087(v=vs.110).aspx
// * https://msdn.microsoft.com/en-us/library/ms735098.aspx
// * http://stackoverflow.com/q/41393811/60188
var serviceName = counterName.SubstringBefore("@").Replace('.', '_');
var serviceBaseAddress = counterName.SubstringAfter("@").Trim('|').Replace('.', '_');
var normalizedCounterName = string.Format("{0}.{1}",
MetricNameBuilder.SanitizeMetricName(serviceName).ToLowerInvariant(),
MetricNameBuilder.SanitizeMetricName(serviceBaseAddress).ToLowerInvariant());
while (normalizedCounterName.Contains("__"))
{
normalizedCounterName = normalizedCounterName.Replace("__", "_");
}
return(normalizedCounterName);
}
private IEnumerable <IMetricDefinition> CreatePerformanceCounterMetricDefinition(MetricConfigurationElement metric,
Func <string, string> metricNameProcessor)
{
return(ParsePerformanceCounters(metric.Path).Select(pc => {
var name = metric.Name;
if (!string.IsNullOrWhiteSpace(pc.Item1) && name.Contains("**"))
{
var fragment = MetricNameBuilder.SanitizeMetricName(metricNameProcessor(pc.Item1)).ToLowerInvariant();
fragment = fragment.Trim('_');
while (fragment.Contains("__"))
{
fragment = fragment.Replace("__", "_");
}
name = name.Replace("**", fragment);
} // if
var metricDefinition = new PerformanceCounterMetricDefinition(name, () => pc.Item2.NextValue(), metric.AggregationStrategy);
return metricDefinition;
}));
}
public IEnumerable <IMetricDefinition> GetMetricDefinitions()
{
using (var tcpClient = new TcpClient())
{
tcpClient.Connect(uri.Host, uri.Port);
using (var networkStream = tcpClient.GetStream())
{
WriteString(networkStream, "stats\n");
var stats =
ReadStrings(networkStream).
TakeWhile(s => !s.Equals("END", StringComparison.InvariantCultureIgnoreCase)).
Where(s => s.StartsWith("STAT ")).
Select(s => s.SubstringAfter("STAT ")).
Select(s => s.Split(' '));
foreach (var stat in stats)
{
long value;
if (!long.TryParse(stat[1], out value))
{
continue;
}
var metric = stat[0];
yield return(new MetricDefinition(
MetricNameBuilder.BuildMetricName(name, metric),
() => value,
aggregationStrategy));
} // foreach
WriteString(networkStream, "quit\n");
} // using
} // using
}
public string BuildMetricName(string @namespace, string name)
{
return(MetricNameBuilder.BuildMetricName(@namespace, name));
}
