protected override async Task EmitBatchAsync(IEnumerable <LogEvent> events)
{
var detailedLog = new NewRelicLogPayload();
detailedLog.common.attributes.Add("application", ApplicationName);
var eventList = events.ToList();
foreach (var logEvent in eventList)
{
try
{
var logItem = new NewRelicLogItem
{
timestamp = UnixTimestampFromDateTime(logEvent.Timestamp.UtcDateTime),
message = logEvent.RenderMessage(FormatProvider),
attributes = new Dictionary <string, object>
{
{ "level", logEvent.Level.ToString() },
{ "stack_trace", logEvent.Exception?.StackTrace ?? "" },
}
};
foreach (var prop in logEvent.Properties)
{
if (prop.Key.Equals("newrelic.linkingmetadata", StringComparison.InvariantCultureIgnoreCase))
{
UnrollNewRelicDistributedTraceAttributes(logItem, prop.Value);
}
else
{
logItem.attributes.Add(prop.Key, NewRelicPropertyFormatter.Simplify(prop.Value));
}
}
detailedLog.logs.Add(logItem);
}
catch (Exception ex)
{
SelfLog.WriteLine("Log event could not be formatted and was dropped: {0} {1}", ex.Message, ex.StackTrace);
}
}
var body = Serialize(new List <object> {
detailedLog
}, eventList.Count);
await Task.Run(() =>
{
try
{
SendToNewRelicLogs(body);
}
catch (Exception ex)
{
SelfLog.WriteLine("Event batch could not be sent to NewRelic Logs and was dropped: {0} {1}", ex.Message, ex.StackTrace);
}
})
.ConfigureAwait(false);
}
private static void UnrollNewRelicDistributedTraceAttributes(NewRelicLogItem logItem, LogEventPropertyValue propValue)
{
if (!(propValue is DictionaryValue newRelicProperties))
{
return;
}
foreach (var newRelicProperty in newRelicProperties.Elements)
{
logItem.attributes.Add(
NewRelicPropertyFormatter.Simplify(newRelicProperty.Key).ToString(),
NewRelicPropertyFormatter.Simplify(newRelicProperty.Value));
}
}