private void RenderColumnLayout(LogEventInfo logEvent, Layout columnLayout, CsvQuotingMode quoting, StringBuilder target, int i)
{
if (i != 0)
{
target.Append(_actualColumnDelimiter);
}
if (quoting == CsvQuotingMode.All)
{
target.Append(QuoteChar);
}
int orgLength = target.Length;
columnLayout.RenderAppendBuilder(logEvent, target);
if (orgLength != target.Length && ColumnValueRequiresQuotes(quoting, target, orgLength))
{
string columnValue = target.ToString(orgLength, target.Length - orgLength);
target.Length = orgLength;
if (quoting != CsvQuotingMode.All)
{
target.Append(QuoteChar);
}
target.Append(columnValue.Replace(QuoteChar, _doubleQuoteChar));
target.Append(QuoteChar);
}
else
{
if (quoting == CsvQuotingMode.All)
{
target.Append(QuoteChar);
}
}
}
/// <summary>
/// Formats the log event relying on inner layouts.
/// </summary>
/// <param name="logEvent">The logging event.</param>
/// <param name="target"><see cref="StringBuilder"/> for the result</param>
protected override void RenderFormattedMessage(LogEventInfo logEvent, StringBuilder target)
{
//Memory profiling pointed out that using a foreach-loop was allocating
//an Enumerator. Switching to a for-loop avoids the memory allocation.
for (int i = 0; i < Layouts.Count; i++)
{
Layout layout = Layouts[i];
layout.RenderAppendBuilder(logEvent, target);
}
}
/// <summary>
/// Renders the layout for the specified logging event by invoking layout renderers.
/// </summary>
/// <param name="logEvent">The logging event.</param>
/// <param name="target"><see cref="System.Text.StringBuilder"/> for the result.</param>
protected override void RenderFormattedMessage(LogEventInfo logEvent, System.Text.StringBuilder target)
{
Layout.RenderAppendBuilder(logEvent, target);
}
