/// <summary>
/// Instantiates a new collector. You should typically only instantiate one collector for the lifetime of your
/// application. It will manage the serialization of metrics and sending data to metric handlers.
/// </summary>
/// <param name="options">
/// <see cref="MetricsCollectorOptions" /> representing the options to use for this collector.
/// </param>
public MetricsCollector(MetricsCollectorOptions options)
{
ExceptionHandler = options.ExceptionHandler ?? (_ => { });
ThrowOnPostFail = options.ThrowOnPostFail;
ThrowOnQueueFull = options.ThrowOnQueueFull;
ReportingInterval = options.SnapshotInterval;
FlushInterval = options.FlushInterval;
RetryInterval = options.RetryInterval;
RetryCount = options.RetryCount;
_endpoints = options.Endpoints?.ToImmutableArray() ?? ImmutableArray <MetricEndpoint> .Empty;
_sources = options.Sources?.ToImmutableArray() ?? ImmutableArray <MetricSource> .Empty;
_batches = _endpoints.IsDefaultOrEmpty ? Array.Empty <IMetricReadingBatch>() : new IMetricReadingBatch[_endpoints.Length];
}
/// <summary>
/// Instantiates a new collector. You should typically only instantiate one collector for the lifetime of your
/// application. It will manage the serialization of metrics and sending data to metric handlers.
/// </summary>
/// <param name="options">
/// <see cref="MetricsCollectorOptions" /> representing the options to use for this collector.
/// </param>
public MetricsCollector(MetricsCollectorOptions options)
{
ExceptionHandler = options.ExceptionHandler ?? (_ => { });
MetricsNamePrefix = options.MetricsNamePrefix ?? "";
if (MetricsNamePrefix != "" && !MetricValidation.IsValidMetricName(MetricsNamePrefix))
{
throw new Exception("\"" + MetricsNamePrefix + "\" is not a valid metric name prefix.");
}
_endpoints = options.Endpoints?.ToImmutableArray() ?? ImmutableArray <MetricEndpoint> .Empty;
_sets = options.Sets?.ToImmutableArray() ?? ImmutableArray <IMetricSet> .Empty;
ThrowOnPostFail = options.ThrowOnPostFail;
ThrowOnQueueFull = options.ThrowOnQueueFull;
ReportingInterval = options.SnapshotInterval;
FlushInterval = options.FlushInterval;
RetryInterval = options.RetryInterval;
PropertyToTagName = options.PropertyToTagName;
TagValueConverter = options.TagValueConverter;
DefaultTags = ValidateDefaultTags(options.DefaultTags);
_maxRetries = 3;
_shutdownTokenSource = new CancellationTokenSource();
// initialize any metric sets
foreach (var set in _sets)
{
set.Initialize(this);
}
// start continuous queue-flushing
_flushTask = Task.Run(
async() =>
{
while (!_shutdownTokenSource.IsCancellationRequested)
{
await Task.Delay(FlushInterval);
try
{
await FlushAsync(true);
}
catch (Exception ex)
{
SendExceptionToHandler(ex);
}
}
});
// start reporting timer
_reportingTask = Task.Run(
async() =>
{
while (!_shutdownTokenSource.IsCancellationRequested)
{
await Task.Delay(ReportingInterval);
try
{
await SnapshotAsync(true);
}
catch (Exception ex)
{
SendExceptionToHandler(ex);
}
}
});
}
