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Add LogEvent properties as additional fields in the GELF message #4

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Add LogEvent properties as additional fields in the GELF message #4

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4 changes: 4 additions & 0 deletions NLog.Target.Gelf/GelfMessage.cs
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
using System.Collections.Generic;
using Newtonsoft.Json;

namespace NLog.Targets.Gelf
Expand Down Expand Up @@ -34,5 +35,8 @@ internal class GelfMessage

[JsonProperty("_notes")]
public string Notes { get; set; }

[JsonExtensionData]
public Dictionary<string, object> Properties { get; set; }
}
}
3 changes: 2 additions & 1 deletion NLog.Target.Gelf/NLog.Targets.Gelf.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -142,7 +142,8 @@ private string CreateGelfJsonFromLoggingEvent(LogEventInfo logEventInfo)
Host = Dns.GetHostName(),
Level = logEventInfo.Level.GelfSeverity(),
ShortMessage = shortMessage,
Logger = logEventInfo.LoggerName ?? ""
Logger = logEventInfo.LoggerName ?? "",
Properties = logEventInfo.Properties.ToDictionary(x => "_" + x.Key, y => y.Value)
};

if (logEventInfo.Properties != null)
Expand Down
25 changes: 19 additions & 6 deletions TestApp/Form1.Designer.cs
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11 changes: 11 additions & 0 deletions TestApp/Form1.cs
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Expand Up @@ -48,6 +48,9 @@ private void ButtonLog_Click(object sender, EventArgs e)
case "buttonFatal":
Logger.Fatal("This is a sample fatal message");
break;
case "buttonCustomFields":
LogEventWithCustomProperties(LogLevel.Trace, "This is a message with custom fields");
break;
case "buttonRandomMessage":
// 32 is a space, the rest are the upper case alphabet.
var byteValues = new[] {32, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90};
Expand All @@ -65,5 +68,13 @@ private void ButtonLog_Click(object sender, EventArgs e)
break;
}
}

private static void LogEventWithCustomProperties(LogLevel level, string message)
{
var theEvent = new LogEventInfo(level, "logger-name", message);
theEvent.Properties["MyCustomValue"] = "custom";
theEvent.Properties["AnotherCustomValue"] = "custom2";
Logger.Log(theEvent);
}
}
}