/// <summary>
/// Renders the specified Nested Diagnostics Context item and appends it to the specified <see cref="StringBuilder" />.
/// </summary>
/// <param name="builder">The <see cref="StringBuilder"/> to append the rendered data to.</param>
/// <param name="logEvent">Logging event.</param>
protected override void Append(StringBuilder builder, LogEventInfo logEvent)
{
var messages = NestedDiagnosticsContext.GetAllObjects();
int startPos = 0;
int endPos = messages.Length;
if (TopFrames != -1)
{
endPos = Math.Min(TopFrames, messages.Length);
}
else if (BottomFrames != -1)
{
startPos = messages.Length - Math.Min(BottomFrames, messages.Length);
}
string currentSeparator = string.Empty;
for (int i = endPos - 1; i >= startPos; --i)
{
var stringValue = Internal.FormatHelper.ConvertToString(messages[i], logEvent.FormatProvider);
builder.Append(currentSeparator);
builder.Append(stringValue);
currentSeparator = Separator;
}
}
/// <summary>
/// Renders the specified Nested Diagnostics Context item and appends it to the specified <see cref="StringBuilder" />.
/// </summary>
/// <param name="builder">The <see cref="StringBuilder"/> to append the rendered data to.</param>
/// <param name="logEvent">Logging event.</param>
protected override void Append(StringBuilder builder, LogEventInfo logEvent)
{
if (TopFrames == 1)
{
// Allows fast rendering of topframes=1
var topFrame = NestedDiagnosticsContext.PeekObject();
if (topFrame != null)
{
AppendAsString(topFrame, GetFormatProvider(logEvent), builder);
}
return;
}
var messages = NestedDiagnosticsContext.GetAllObjects();
if (messages.Length == 0)
{
return;
}
int startPos = 0;
int endPos = messages.Length;
if (TopFrames != -1)
{
endPos = Math.Min(TopFrames, messages.Length);
}
else if (BottomFrames != -1)
{
startPos = messages.Length - Math.Min(BottomFrames, messages.Length);
}
var formatProvider = GetFormatProvider(logEvent);
string currentSeparator = string.Empty;
for (int i = endPos - 1; i >= startPos; --i)
{
builder.Append(currentSeparator);
AppendAsString(messages[i], formatProvider, builder);
currentSeparator = Separator;
}
}
public void NDCTest2_object()
{
List <Exception> exceptions = new List <Exception>();
ManualResetEvent mre = new ManualResetEvent(false);
int counter = 100;
int remaining = counter;
for (int i = 0; i < counter; ++i)
{
ThreadPool.QueueUserWorkItem(
s =>
{
try
{
NestedDiagnosticsContext.Clear();
Assert.Null(NestedDiagnosticsContext.TopObject);
Assert.Null(NestedDiagnosticsContext.PopObject());
AssertContents(NestedDiagnosticsContext.GetAllMessages());
using (NestedDiagnosticsContext.Push("foo"))
{
Assert.Equal("foo", NestedDiagnosticsContext.TopObject);
AssertContents(NestedDiagnosticsContext.GetAllObjects(), "foo");
using (NestedDiagnosticsContext.Push("bar"))
{
AssertContents(NestedDiagnosticsContext.GetAllObjects(), "bar", "foo");
Assert.Equal("bar", NestedDiagnosticsContext.TopObject);
NestedDiagnosticsContext.Push("baz");
AssertContents(NestedDiagnosticsContext.GetAllObjects(), "baz", "bar", "foo");
Assert.Equal("baz", NestedDiagnosticsContext.TopObject);
Assert.Equal("baz", NestedDiagnosticsContext.PopObject());
AssertContents(NestedDiagnosticsContext.GetAllObjects(), "bar", "foo");
Assert.Equal("bar", NestedDiagnosticsContext.TopObject);
}
AssertContents(NestedDiagnosticsContext.GetAllObjects(), "foo");
Assert.Equal("foo", NestedDiagnosticsContext.TopObject);
}
AssertContents(NestedDiagnosticsContext.GetAllMessages());
Assert.Null(NestedDiagnosticsContext.PopObject());
}
catch (Exception ex)
{
lock (exceptions)
{
exceptions.Add(ex);
}
}
finally
{
if (Interlocked.Decrement(ref remaining) == 0)
{
mre.Set();
}
}
});
}
mre.WaitOne();
StringBuilder exceptionsMessage = new StringBuilder();
foreach (var ex in exceptions)
{
if (exceptionsMessage.Length > 0)
{
exceptionsMessage.Append("\r\n");
}
exceptionsMessage.Append(ex.ToString());
}
Assert.True(exceptions.Count == 0, exceptionsMessage.ToString());
}