public IDiagnosticEventPropertyCollection CollectData(IReadOnlyList<IDataRequest> requestedContextData)
{
var result = new DiagnosticEventPropertyCollection(capacity: requestedContextData.Count);
if (requestedContextData.Count == 0)
return result;
var cx = new DataCollectionContext();
for (int i = 0; i < requestedContextData.Count; i++)
{
var item = requestedContextData[i];
IDiagnosticEventProperty property = null;
//# try to get from cache first
if (DataRequestCache.TryGetValue(item, out property))
{
result.AddOrUpdate(property);
continue;
}
//# get the data
var dataValue = (object)null;
if (TryGetData(item, cx, out dataValue))
{
var newProperty = new DiagnosticEventProperty();
newProperty.UniqueName = item.Data;
newProperty.Value = dataValue;
property = newProperty;
result.AddOrUpdate(property);
// add to cache if needed
if (item.IsCached && !DataRequestCache.ContainsKey(item))
DataRequestCache.AddOrUpdate(item, property);
}
}
return result;
}
public DiagnosticEvent()
{
Properties = new DiagnosticEventPropertyCollection(capacity: 27);
Properties.AddOrUpdate("Event.HasCallerInfo", false);
LoggerName = "";
AttachedObjects = new AttachedObjectCollection();
}