private GaugeAggregatorStrategy GetAggregatorStategy()
{
var type = GetType();
if (_aggregatorsByTypeCache.ContainsKey(type))
{
return(_aggregatorsByTypeCache[type]);
}
lock (_aggregatorsByTypeCache)
{
if (_aggregatorsByTypeCache.ContainsKey(type))
{
return(_aggregatorsByTypeCache[type]);
}
var aggregators = GetType().GetCustomAttributes <GaugeAggregatorAttribute>(false).ToList().AsReadOnly();
if (aggregators.Count == 0)
{
throw new Exception(GetType().FullName + " has no GaugeAggregator attributes. All gauges must have at least one.");
}
var hash = new HashSet <string>();
foreach (var r in aggregators)
{
if (hash.Contains(r.Suffix))
{
throw new Exception($"{type.FullName} has more than one gauge aggregator with the name \"{r.Suffix}\".");
}
}
return(_aggregatorsByTypeCache[type] = new GaugeAggregatorStrategy(aggregators));
}
}
GaugeAggregatorStrategy GetAggregatorStategy()
{
var type = GetType();
if (s_aggregatorsByTypeCache.ContainsKey(type))
{
return(s_aggregatorsByTypeCache[type]);
}
lock (s_aggregatorsByTypeCache)
{
if (s_aggregatorsByTypeCache.ContainsKey(type))
{
return(s_aggregatorsByTypeCache[type]);
}
var attributes = GetGaugeAggregatorAttributes(type);
var hash = new HashSet <string>();
foreach (var attr in attributes)
{
if (hash.Contains(attr.Suffix))
{
throw new Exception($"{type.FullName} has more than one gauge aggregator with the name \"{attr.Suffix}\".");
}
hash.Add(attr.Suffix);
}
return(s_aggregatorsByTypeCache[type] = new GaugeAggregatorStrategy(attributes));
}
}
public AggregateGauge()
{
_aggregatorStrategy = GetAggregatorStategy();
// denormalize these for one less level of indirection
_trackMean = _aggregatorStrategy.TrackMean;
_specialCaseMin = _aggregatorStrategy.SpecialCaseMin;
_specialCaseMax = _aggregatorStrategy.SpecialCaseMax;
_specialCaseLast = _aggregatorStrategy.SpecialCaseLast;
_reportCount = _aggregatorStrategy.ReportCount;
// setup heap, if required.
if (_aggregatorStrategy.UseList)
_list = new List<double>();
}
public AggregateGauge()
{
_aggregatorStrategy = GetAggregatorStategy();
// denormalize these for one less level of indirection
_trackMean = _aggregatorStrategy.TrackMean;
_specialCaseMin = _aggregatorStrategy.SpecialCaseMin;
_specialCaseMax = _aggregatorStrategy.SpecialCaseMax;
_specialCaseLast = _aggregatorStrategy.SpecialCaseLast;
_reportCount = _aggregatorStrategy.ReportCount;
// setup heap, if required.
if (_aggregatorStrategy.UseList)
{
_list = new List <double>();
}
}
/// <summary>
/// Instantiates a new <see cref="AggregateGauge"/>.
/// </summary>
public AggregateGauge(IEnumerable <GaugeAggregator> aggregators, string name, string unit, string description, MetricSourceOptions options, ImmutableDictionary <string, string> tags = null) : base(name, unit, description, options, tags)
{
var strategy = new GaugeAggregatorStrategy(aggregators.ToImmutableArray());
// denormalize these for one less level of indirection
_percentiles = strategy.Percentiles;
_suffixes = strategy.Suffixes;
_trackMean = strategy.TrackMean;
_specialCaseMin = strategy.SpecialCaseMin;
_specialCaseMax = strategy.SpecialCaseMax;
_specialCaseLast = strategy.SpecialCaseLast;
_reportCount = strategy.ReportCount;
// setup heap, if required.
if (strategy.UseList)
{
_list = new List <double>();
}
_snapshot = new double[_suffixes.Length];
_snapshotReportingMode = SnapshotReportingMode.None;
}
private GaugeAggregatorStrategy GetAggregatorStategy()
{
var type = GetType();
if (_aggregatorsByTypeCache.ContainsKey(type))
return _aggregatorsByTypeCache[type];
lock (_aggregatorsByTypeCache)
{
if (_aggregatorsByTypeCache.ContainsKey(type))
return _aggregatorsByTypeCache[type];
var aggregators = GetType().GetCustomAttributes<GaugeAggregatorAttribute>(false).ToList().AsReadOnly();
if (aggregators.Count == 0)
throw new Exception(GetType().FullName + " has no GaugeAggregator attributes. All gauges must have at least one.");
var hash = new HashSet<string>();
foreach (var r in aggregators)
{
if (hash.Contains(r.Suffix))
throw new Exception($"{type.FullName} has more than one gauge aggregator with the name \"{r.Suffix}\".");
}
return _aggregatorsByTypeCache[type] = new GaugeAggregatorStrategy(aggregators);
}
}
