/// <summary>
/// Construct a HeartbeaterService that periodically reports heartbeats for multiple
/// components.
/// </summary>
/// <param name="wavefrontMetricSender">
/// Sender that handles sending of heartbeat metrics to Wavefront.
/// </param>
/// <param name="applicationTags">Application tags.</param>
/// <param name="components">List of components to send heartbeats for.</param>
/// <param name="source">The source (or host).</param>
public HeartbeaterService(
IWavefrontMetricSender wavefrontMetricSender,
ApplicationTags applicationTags,
IList <string> components,
string source)
: this(wavefrontMetricSender, applicationTags, components, source, Logging.LoggerFactory)
{
}
/// <summary>
/// Construct a HeartbeaterService that periodically reports heartbeats for one component.
/// </summary>
/// <param name="wavefrontMetricSender">
/// Sender that handles sending of heartbeat metrics to Wavefront.
/// </param>
/// <param name="applicationTags">Application tags.</param>
/// <param name="component">The component to send heartbeats for.</param>
/// <param name="source">The source (or host).</param>
public HeartbeaterService(
IWavefrontMetricSender wavefrontMetricSender,
ApplicationTags applicationTags,
string component,
string source)
: this(wavefrontMetricSender, applicationTags, new List <string> {
component
}, source)
{
}
/// <summary>
/// Sends the given delta counter to Wavefront. The timestamp for the point on the client
/// side is null because the final timestamp of the delta counter is assigned when the
/// point is aggregated on the server side. Do not use this method to send older points
/// (say around 5 min old) as they will be aggregated on server with the current timestamp
/// which yields in a wrong final aggregated value.
/// </summary>
/// <param name="sender">
/// The instance that implements <see cref="IWavefrontMetricSender"/>.
/// </param>
/// <param name="name">
/// The name of the delta counter. Name will be prefixed by ∆ if it does not start with
/// that symbol already. Also, spaces are replaced with '-' (dashes) and quotes will be
/// automatically escaped.
/// </param>
/// <param name="value">
/// The delta value to be sent. This will be aggregated on the Wavefront server side.
/// </param>
/// <param name="source">
/// The source (or host) that's sending the metric. If null then assigned by Wavefront.
/// </param>
/// <param name="tags">The tags associated with this metric.</param>
public static void SendDeltaCounter(this IWavefrontMetricSender sender,
string name, double value, string source,
IDictionary <string, string> tags)
{
if (!name.StartsWith(Constants.DeltaPrefix, StringComparison.Ordinal) &&
!name.StartsWith(Constants.DeltaPrefix2, StringComparison.Ordinal))
{
name = Constants.DeltaPrefix + name;
}
sender.SendMetric(name, value, null, source, tags);
}
public HeartbeaterService(
IWavefrontMetricSender wavefrontMetricSender,
ApplicationTags applicationTags,
string component,
string source)
{
this.wavefrontMetricSender = wavefrontMetricSender;
this.source = source;
heartbeatMetricTags = new Dictionary <string, string>
{
{ Constants.ApplicationTagKey, applicationTags.Application },
{ Constants.ClusterTagKey, applicationTags.Cluster ?? Constants.NullTagValue },
{ Constants.ServiceTagKey, applicationTags.Service },
{ Constants.ShardTagKey, applicationTags.Shard ?? Constants.NullTagValue },
{ Constants.ComponentTagKey, component }
};
}
public static void SendDeltaCounter(this IWavefrontMetricSender sender,
string name, double value, long?timestamp,
string source, IDictionary <string, string> tags)
{
if (value <= 0)
{
// Delta counters cannot be non-positive
return;
}
if (!name.StartsWith(Constants.DeltaPrefix, StringComparison.Ordinal) &&
!name.StartsWith(Constants.DeltaPrefix2, StringComparison.Ordinal))
{
name = Constants.DeltaPrefix + name;
}
sender.SendMetric(name, value, null, source, tags);
}
/// <summary>
/// Construct a HeartbeaterService that periodically reports heartbeats for multiple
/// components.
/// </summary>
/// <param name="wavefrontMetricSender">
/// Sender that handles sending of heartbeat metrics to Wavefront.
/// </param>
/// <param name="applicationTags">Application tags.</param>
/// <param name="components">List of components to send heartbeats for.</param>
/// <param name="source">The source (or host).</param>
/// <param name="source">The logger factory used to create a logger.</param>
public HeartbeaterService(
IWavefrontMetricSender wavefrontMetricSender,
ApplicationTags applicationTags,
IList <string> components,
string source,
ILoggerFactory loggerFactory)
{
this.wavefrontMetricSender = wavefrontMetricSender;
this.source = source;
heartbeatMetricTagsList = new List <IDictionary <string, string> >();
customTagsSet = new ConcurrentDictionary <IDictionary <string, string>, bool>(
new TagsDictionaryComparer());
logger = loggerFactory.CreateLogger <HeartbeaterService>() ??
throw new ArgumentNullException(nameof(loggerFactory));
foreach (string component in components)
{
var tags = new Dictionary <string, string>
{
{ Constants.ApplicationTagKey, applicationTags.Application },
{ Constants.ClusterTagKey, applicationTags.Cluster ?? Constants.NullTagValue },
{ Constants.ServiceTagKey, applicationTags.Service },
{ Constants.ShardTagKey, applicationTags.Shard ?? Constants.NullTagValue },
{ Constants.ComponentTagKey, component }
};
if (applicationTags.CustomTags != null)
{
foreach (var customTag in applicationTags.CustomTags)
{
if (!tags.ContainsKey(customTag.Key))
{
tags.Add(customTag.Key, customTag.Value);
}
}
}
heartbeatMetricTagsList.Add(tags);
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="wavefrontMetricSender">
/// The sender instance used to send metrics to Wavefront.
/// </param>
public Builder(IWavefrontMetricSender wavefrontMetricSender)
{
this.wavefrontMetricSender = wavefrontMetricSender;
tags = new Dictionary <string, string>();
}
