private static bool ProcessTags(ref AttributeEnumerationState state, KeyValuePair <string, string> attribute)
{
string key = attribute.Key;
string strVal = attribute.Value;
if (strVal != null)
{
if (RemoteEndpointServiceNameKeyResolutionDictionary.TryGetValue(key, out int priority) &&
(state.RemoteEndpointServiceName == null || priority < state.RemoteEndpointServiceNamePriority))
{
state.RemoteEndpointServiceName = strVal;
state.RemoteEndpointServiceNamePriority = priority;
}
else if (key == Resource.ServiceNameKey)
{
state.ServiceName = strVal;
}
else if (key == Resource.ServiceNamespaceKey)
{
state.ServiceNamespace = strVal;
}
else
{
PooledList <KeyValuePair <string, string> > .Add(ref state.Tags, new KeyValuePair <string, string>(key, strVal));
}
}
else
{
PooledList <KeyValuePair <string, string> > .Add(ref state.Tags, new KeyValuePair <string, string>(key, strVal));
}
return(true);
}
public void CheckNullValueProcessTag(string key, object value)
{
var attributeEnumerationState = new AttributeEnumerationState
{
Tags = PooledList <KeyValuePair <string, object> > .Create(),
};
ProcessTags(ref attributeEnumerationState, new KeyValuePair <string, object>(key, value));
Assert.Empty(attributeEnumerationState.Tags);
}
public void CheckProcessTag(string key, object value)
{
var attributeEnumerationState = new AttributeEnumerationState
{
Tags = PooledList <KeyValuePair <string, object> > .Create(),
};
ProcessTags(ref attributeEnumerationState, new KeyValuePair <string, object>(key, value));
Assert.Equal(key, attributeEnumerationState.Tags[0].Key);
Assert.Equal(value, attributeEnumerationState.Tags[0].Value);
}
private static bool ProcessAttributes(ref AttributeEnumerationState state, KeyValuePair <string, object> attribute)
{
string key = attribute.Key;
if (!(attribute.Value is string strVal))
{
strVal = attribute.Value?.ToString();
}
if (strVal != null &&
RemoteEndpointServiceNameKeyResolutionDictionary.TryGetValue(key, out int priority) &&
(state.RemoteEndpointServiceName == null || priority < state.RemoteEndpointServiceNamePriority))
{
state.RemoteEndpointServiceName = strVal;
state.RemoteEndpointServiceNamePriority = priority;
}
PooledList <KeyValuePair <string, string> > .Add(ref state.Tags, new KeyValuePair <string, string>(key, strVal));
return(true);
}
private static bool ProcessLibraryResources(ref AttributeEnumerationState state, KeyValuePair <string, object> label)
{
// See https://github.com/open-telemetry/opentelemetry-specification/blob/master/specification/data-resource-semantic-conventions.md
string key = label.Key;
object val = label.Value;
string strVal = val as string;
if (key == Resource.ServiceNameKey && strVal != null)
{
state.ServiceName = strVal;
}
else if (key == Resource.ServiceNamespaceKey && strVal != null)
{
state.ServiceNamespace = strVal;
}
else
{
PooledList <KeyValuePair <string, string> > .Add(ref state.Tags, new KeyValuePair <string, string>(key, strVal ?? val?.ToString()));
}
return(true);
}
internal static ZipkinSpan ToZipkinSpan(this SpanData otelSpan, ZipkinEndpoint defaultLocalEndpoint, bool useShortTraceIds = false)
{
var context = otelSpan.Context;
var startTimestamp = ToEpochMicroseconds(otelSpan.StartTimestamp);
var endTimestamp = ToEpochMicroseconds(otelSpan.EndTimestamp);
string parentId = null;
if (otelSpan.ParentSpanId != default)
{
parentId = EncodeSpanId(otelSpan.ParentSpanId);
}
var attributeEnumerationState = new AttributeEnumerationState
{
Tags = PooledList <KeyValuePair <string, string> > .Create(),
};
DictionaryEnumerator <string, object, AttributeEnumerationState> .AllocationFreeForEach(otelSpan.Attributes, ref attributeEnumerationState, ProcessAttributesRef);
DictionaryEnumerator <string, object, AttributeEnumerationState> .AllocationFreeForEach(otelSpan.LibraryResource.Attributes, ref attributeEnumerationState, ProcessLibraryResourcesRef);
var localEndpoint = defaultLocalEndpoint;
var serviceName = attributeEnumerationState.ServiceName;
// override default service name
if (!string.IsNullOrWhiteSpace(serviceName))
{
if (!string.IsNullOrWhiteSpace(attributeEnumerationState.ServiceNamespace))
{
serviceName = attributeEnumerationState.ServiceNamespace + "." + serviceName;
}
if (!LocalEndpointCache.TryGetValue(serviceName, out localEndpoint))
{
localEndpoint = defaultLocalEndpoint.Clone(serviceName);
LocalEndpointCache.TryAdd(serviceName, localEndpoint);
}
}
ZipkinEndpoint remoteEndpoint = null;
if ((otelSpan.Kind == SpanKind.Client || otelSpan.Kind == SpanKind.Producer) && attributeEnumerationState.RemoteEndpointServiceName != null)
{
remoteEndpoint = RemoteEndpointCache.GetOrAdd(attributeEnumerationState.RemoteEndpointServiceName, ZipkinEndpoint.Create);
}
var status = otelSpan.Status;
if (status.IsValid)
{
if (!CanonicalCodeCache.TryGetValue(status.CanonicalCode, out string canonicalCode))
{
canonicalCode = status.CanonicalCode.ToString();
CanonicalCodeCache.TryAdd(status.CanonicalCode, canonicalCode);
}
PooledList <KeyValuePair <string, string> > .Add(ref attributeEnumerationState.Tags, new KeyValuePair <string, string>(StatusCode, canonicalCode));
if (status.Description != null)
{
PooledList <KeyValuePair <string, string> > .Add(ref attributeEnumerationState.Tags, new KeyValuePair <string, string>(StatusDescription, status.Description));
}
}
var annotations = PooledList <ZipkinAnnotation> .Create();
ListEnumerator <Event, PooledList <ZipkinAnnotation> > .AllocationFreeForEach(otelSpan.Events, ref annotations, ProcessEventsRef);
return(new ZipkinSpan(
EncodeTraceId(context.TraceId, useShortTraceIds),
parentId,
EncodeSpanId(context.SpanId),
ToSpanKind(otelSpan),
otelSpan.Name,
ToEpochMicroseconds(otelSpan.StartTimestamp),
duration: endTimestamp - startTimestamp,
localEndpoint,
remoteEndpoint,
annotations,
attributeEnumerationState.Tags,
null,
null));
}
internal static ZipkinSpan ToZipkinSpan(this Activity activity, ZipkinEndpoint defaultLocalEndpoint, bool useShortTraceIds = false)
{
var context = activity.Context;
var startTimestamp = activity.StartTimeUtc.ToEpochMicroseconds();
string parentId = EncodeSpanId(activity.ParentSpanId);
if (string.Equals(parentId, InvalidSpanId, StringComparison.Ordinal))
{
parentId = null;
}
var attributeEnumerationState = new AttributeEnumerationState
{
Tags = PooledList <KeyValuePair <string, string> > .Create(),
};
DictionaryEnumerator <string, string, AttributeEnumerationState> .AllocationFreeForEach(activity.Tags, ref attributeEnumerationState, ProcessTagsRef);
var activitySource = activity.Source;
if (!string.IsNullOrEmpty(activitySource.Name))
{
PooledList <KeyValuePair <string, string> > .Add(ref attributeEnumerationState.Tags, new KeyValuePair <string, string>("library.name", activitySource.Name));
if (!string.IsNullOrEmpty(activitySource.Version))
{
PooledList <KeyValuePair <string, string> > .Add(ref attributeEnumerationState.Tags, new KeyValuePair <string, string>("library.version", activitySource.Version));
}
}
var localEndpoint = defaultLocalEndpoint;
var serviceName = attributeEnumerationState.ServiceName;
// override default service name
if (!string.IsNullOrWhiteSpace(serviceName))
{
if (!string.IsNullOrWhiteSpace(attributeEnumerationState.ServiceNamespace))
{
serviceName = attributeEnumerationState.ServiceNamespace + "." + serviceName;
}
if (!LocalEndpointCache.TryGetValue(serviceName, out localEndpoint))
{
localEndpoint = defaultLocalEndpoint.Clone(serviceName);
LocalEndpointCache.TryAdd(serviceName, localEndpoint);
}
}
ZipkinEndpoint remoteEndpoint = null;
if ((activity.Kind == ActivityKind.Client || activity.Kind == ActivityKind.Producer) && attributeEnumerationState.RemoteEndpointServiceName != null)
{
remoteEndpoint = RemoteEndpointCache.GetOrAdd(attributeEnumerationState.RemoteEndpointServiceName, ZipkinEndpoint.Create);
}
var annotations = PooledList <ZipkinAnnotation> .Create();
ListEnumerator <ActivityEvent, PooledList <ZipkinAnnotation> > .AllocationFreeForEach(activity.Events, ref annotations, ProcessActivityEventsRef);
return(new ZipkinSpan(
EncodeTraceId(context.TraceId, useShortTraceIds),
parentId,
EncodeSpanId(context.SpanId),
ToActivityKind(activity),
activity.OperationName,
activity.StartTimeUtc.ToEpochMicroseconds(),
duration: (long)activity.Duration.ToEpochMicroseconds(),
localEndpoint,
remoteEndpoint,
annotations,
attributeEnumerationState.Tags,
null,
null));
}
