private static AttributeFilterNode CreateAttributeNode(string key, AttributeDestinations destinations, bool include)
{
var includes = include ? destinations : AttributeDestinations.None;
var excludes = include ? AttributeDestinations.None : destinations;
return(new AttributeFilterNode(key, includes, excludes));
}
private static string GetAttributeClusionKey(string name, AttributeDestinations defaultDestinations, AttributeDestinations destination)
{
// Enum is cast to byte to avoid enum.ToString which does reflection
// The cache key includes both the intended destinations of the attribute (attribute.DefaultDestinations)
// and the destination being tested. This is because some attributes have the same name (like timestamp)
// but different destinations. Without this cache key, the wrong value will be selected.
return(name + (((byte)destination << 8) + (byte)defaultDestinations).ToString());
}
protected AttributeValueCollectionBase(params AttributeDestinations[] targetModelTypes)
{
TargetModelTypes = targetModelTypes;
foreach (var targetModelType in targetModelTypes)
{
TargetModelTypesAsFlags |= targetModelType;
}
}
protected EventWireModel(AttributeDestinations targetObject, IAttributeValueCollection attribValues, bool isSynthetics, float priority)
{
_targetObject = targetObject;
AttributeValues = new AttributeValueCollection(attribValues, _targetObject);
Priority = priority;
IsSynthetics = isSynthetics;
AttributeValues.MakeImmutable();
}
private Clude CheckForImplicitClusion(string name, AttributeDestinations defaultDestinations, AttributeDestinations destination)
{
if ((defaultDestinations & destination) != destination)
{
return(Clude.Exclude);
}
return(_implicitAttributeTrie.GetClusion(name, destination));
}
public AttributeDefinition(string name, AttributeClassification classification, Dictionary <AttributeDestinations, bool> availability)
{
Name = name;
Classification = classification;
_availability = availability;
foreach (var k in availability.Where(x => x.Value))
{
AttributeDestinations |= k.Key;
}
}
public AttributeFilterNode(string key, AttributeDestinations includes, AttributeDestinations excludes)
{
if (key.EndsWith("*"))
{
Wildcard = true;
Key = key.Substring(0, key.Length - 1);
}
else
{
Key = key;
}
DestinationIncludes = includes;
DestinationExcludes = excludes;
}
public bool CheckOrAddAttributeClusionCache(string name, AttributeDestinations defaultDestinations, AttributeDestinations destination)
{
var cacheKey = GetAttributeClusionKey(name, defaultDestinations, destination);
if (!_cachedClusions.TryGetValue(cacheKey, out var result))
{
result = !ShouldExcludeAttribute(name, defaultDestinations, destination);
if (_cachedClusions.Count <= MaxCacheSize)
{
_cachedClusions.TryAdd(cacheKey, result);
}
}
return(result);
}
public bool ShouldExcludeAttribute(string name, AttributeDestinations defaultDestinations, AttributeDestinations destination)
{
var explicitClusion = CheckForExplicitClusion(name, destination);
if (explicitClusion != Clude.Unknown)
{
return(KnownCludeToBoolean(explicitClusion));
}
var implicitClusion = CheckForImplicitClusion(name, defaultDestinations, destination);
if (implicitClusion != Clude.Unknown)
{
return(KnownCludeToBoolean(implicitClusion));
}
return(false);
}
public static AttributeDefinitionBuilder <object, object> CreateCustomAttribute(string name, AttributeDestinations destination)
{
var builder = Create <object, object>(name, AttributeClassification.UserAttributes);
builder.AppliesTo(destination, true);
builder.WithConvert((input) =>
{
if (input == null)
{
return(null);
}
if (input is TimeSpan)
{
return(((TimeSpan)input).TotalSeconds);
}
else if (input is DateTimeOffset)
{
return(((DateTimeOffset)input).ToString("o"));
}
switch (Type.GetTypeCode(input.GetType()))
{
case TypeCode.SByte:
case TypeCode.Byte:
case TypeCode.UInt16:
case TypeCode.UInt32:
case TypeCode.UInt64:
case TypeCode.Int16:
case TypeCode.Int32:
return(Convert.ToInt64(input));
case TypeCode.Decimal:
case TypeCode.Single:
return(Convert.ToDouble(input));
case TypeCode.Double:
case TypeCode.Int64:
case TypeCode.Boolean:
case TypeCode.String:
return(input);
case TypeCode.DateTime:
return(((DateTime)input).ToString("o"));
}
return(input.ToString());
});
return(builder);
}
public static Clude GetClusion(this TrieNode <AttributeFilterNode> nodeBuilder, string name, AttributeDestinations destination)
{
var childClusion = nodeBuilder.GetClusionFromChildren(name, destination);
if (childClusion != Clude.Unknown)
{
return(childClusion);
}
var exclude = (nodeBuilder.Data.DestinationExcludes & destination) == destination;
if (exclude)
{
return(Clude.Exclude);
}
var include = (nodeBuilder.Data.DestinationIncludes & destination) == destination;
if (include)
{
return(Clude.Include);
}
return(Clude.Unknown);
}
private static Clude GetChildClusion(this TrieNode <AttributeFilterNode> child, string name, AttributeDestinations destination)
{
if (child == null)
{
return(Clude.Unknown);
}
return(child.GetClusion(name, destination));
}
public bool ShouldFilterAttribute(AttributeDestinations targetObjectType)
{
if (!_settings.AttributesEnabled)
{
return(true);
}
switch (targetObjectType)
{
case AttributeDestinations.SpanEvent:
if (!_settings.SpanEventsEnabled)
{
return(true);
}
break;
case AttributeDestinations.ErrorTrace:
if (!_settings.ErrorTraceEnabled)
{
return(true);
}
break;
case AttributeDestinations.JavaScriptAgent:
if (!_settings.JavaScriptAgentEnabled)
{
return(true);
}
break;
case AttributeDestinations.TransactionEvent:
if (!_settings.TransactionEventEnabled)
{
return(true);
}
break;
case AttributeDestinations.TransactionTrace:
if (!_settings.TransactionTraceEnabled)
{
return(true);
}
break;
case AttributeDestinations.ErrorEvent:
if (!_settings.ErrorEventsEnabled)
{
return(true);
}
break;
case AttributeDestinations.SqlTrace:
break;
case AttributeDestinations.CustomEvent:
if (!_settings.CustomEventsEnabled)
{
return(true);
}
break;
default:
throw new ArgumentOutOfRangeException("destination", "Unexpected destination: " + targetObjectType);
}
return(false);
}
public static Dictionary <string, object> ToDictionary(this IAttributeValueCollection attribValueCollection, AttributeDestinations targetObject, params AttributeClassification[] classifications)
{
var filteredAttribValues = new AttributeValueCollection(attribValueCollection, targetObject);
return(ToDictionary(filteredAttribValues, classifications));
}
private static IEnumerable <AttributeFilterNode> CreateAttributeNodes(IEnumerable <string> keys, AttributeDestinations destinations, bool include)
{
return(keys
.Where(key => key != null)
.Select(key => CreateAttributeNode(key, destinations, include)));
}
private static Clude GetClusionFromChildren(this TrieNode <AttributeFilterNode> nodeBuilder, string name, AttributeDestinations destination)
{
var child = nodeBuilder.ApplicableChild(name);
var childClusion = child.GetChildClusion(name, destination);
return(childClusion);
}
private Clude CheckForExplicitClusion(string name, AttributeDestinations destination)
{
return(_explicitAttributeTrie.GetClusion(name, destination));
}