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NLog MDLC + NDLC when NLog ver. 4.6 is ready (Missing pp) #188

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Nov 9, 2018
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NLog MDLC + NDLC when NLog ver. 4.6 is ready (Missing pp) #188

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41 changes: 37 additions & 4 deletions src/LibLog/LogProviders/NLogLogProvider.cs.pp
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Original file line number Diff line number Diff line change
Expand Up @@ -35,22 +35,55 @@

protected override OpenNdc GetOpenNdcMethod()
{
var messageParam = Expression.Parameter(typeof(string), "message");

var ndlcContextType = Type.GetType("NLog.NestedDiagnosticsLogicalContext, NLog");
if (ndlcContextType != null)
{
var pushObjectMethod = ndlcContextType.GetMethod("PushObject", typeof(object));
if (pushObjectMethod != null)
{
var pushObjectMethodCall = Expression.Call(null, pushObjectMethod, messageParam);
return Expression.Lambda<OpenNdc>(pushObjectMethodCall, messageParam).Compile();
}
}

var ndcContextType = Type.GetType("NLog.NestedDiagnosticsContext, NLog");
var pushMethod = ndcContextType.GetMethod("Push", typeof(string));
var messageParam = Expression.Parameter(typeof(string), "message");

var pushMethodCall = Expression.Call(null, pushMethod, messageParam);
return Expression.Lambda<OpenNdc>(pushMethodCall, messageParam).Compile();
}

protected override OpenMdc GetOpenMdcMethod()
{
var mdcContextType = Type.GetType("NLog.MappedDiagnosticsContext, NLog");
var keyParam = Expression.Parameter(typeof(string), "key");

var ndlcContextType = Type.GetType("NLog.NestedDiagnosticsLogicalContext, NLog");
if (ndlcContextType != null)
{
var pushObjectMethod = ndlcContextType.GetMethod("PushObject", typeof(object));
if (pushObjectMethod != null)
{
var mdlcContextType = Type.GetType("NLog.MappedDiagnosticsLogicalContext, NLog");
if (mdlcContextType != null)
{
var setScopedMethod = mdlcContextType.GetMethod("SetScoped", typeof(string), typeof(object));
if (setScopedMethod != null)
{
var valueObjParam = Expression.Parameter(typeof(object), "value");
var setScopedMethodCall = Expression.Call(null, setScopedMethod, keyParam, valueObjParam);
var setMethodLambda = Expression.Lambda<Func<string, object, IDisposable>>(setScopedMethodCall, keyParam, valueObjParam).Compile();
return (key, value, _) => setMethodLambda(key, value);
}
}
}
}

var mdcContextType = Type.GetType("NLog.MappedDiagnosticsContext, NLog");
var setMethod = mdcContextType.GetMethod("Set", typeof(string), typeof(string));
var removeMethod = mdcContextType.GetMethod("Remove", typeof(string));
var keyParam = Expression.Parameter(typeof(string), "key");
var valueParam = Expression.Parameter(typeof(string), "value");

var setMethodCall = Expression.Call(null, setMethod, keyParam, valueParam);
var removeMethodCall = Expression.Call(null, removeMethod, keyParam);

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