DiagnosticsTraceWriter
Represents a trace writer that writes to the application's TraceListener instances.
using System;
using System.Diagnostics;
using System.Runtime.CompilerServices;
namespace Newtonsoft.Json.Serialization
{
public class DiagnosticsTraceWriter : ITraceWriter
{
public TraceLevel LevelFilter { get; set; }
private TraceEventType GetTraceEventType(TraceLevel level)
{
switch (level) {
case TraceLevel.Error:
return TraceEventType.Error;
case TraceLevel.Warning:
return TraceEventType.Warning;
case TraceLevel.Info:
return TraceEventType.Information;
case TraceLevel.Verbose:
return TraceEventType.Verbose;
default:
throw new ArgumentOutOfRangeException("level");
}
}
[System.Runtime.CompilerServices.NullableContext(1)]
public void Trace(TraceLevel level, string message, [System.Runtime.CompilerServices.Nullable(2)] Exception ex)
{
if (level != 0) {
TraceEventCache eventCache = new TraceEventCache();
TraceEventType traceEventType = GetTraceEventType(level);
foreach (TraceListener listener in System.Diagnostics.Trace.Listeners) {
if (!listener.IsThreadSafe) {
lock (listener) {
listener.TraceEvent(eventCache, "Newtonsoft.Json", traceEventType, 0, message);
}
} else
listener.TraceEvent(eventCache, "Newtonsoft.Json", traceEventType, 0, message);
if (System.Diagnostics.Trace.AutoFlush)
listener.Flush();
}
}
}
}
}