/// <summary>
/// <inheritdoc cref="ObjectValueFormatter.Format(TextWriter,object,string,IFormatProvider)"/>
/// </summary>
public static void Format(
[NotNull] TextWriter writer,
[CanBeNull] object value,
[CanBeNull] string format = null,
[CanBeNull] IFormatProvider formatProvider = null)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (value == null)
{
return;
}
if (PaddingFormatHelper.TryParseFormat(format, out var insertLeadingSpace, out var insertTrailingSpace))
{
format = null;
}
if (insertLeadingSpace)
{
writer.WriteSpace();
}
ObjectValueFormatter.Format(writer, value, format, formatProvider);
if (insertTrailingSpace)
{
writer.WriteSpace();
}
}
public void TryParseFormat_should_correctly_parse_valid_formats(
string format,
bool leadingSpaceExpected,
bool trailingSpaceExpected)
{
PaddingFormatHelper.TryParseFormat(format, out var insertLeadingSpace, out var insertTrailingSpace).Should().BeTrue();
insertLeadingSpace.Should().Be(leadingSpaceExpected);
trailingSpaceExpected.Should().Be(insertTrailingSpace);
}
public static void Format(
[NotNull] LogEvent @event,
[NotNull] TextWriter writer,
[CanBeNull] object value,
[CanBeNull] string format = null,
[CanBeNull] IFormatProvider formatProvider = null)
{
if (@event == null)
{
throw new ArgumentNullException(nameof(@event));
}
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (value is OperationContextValue contextValue)
{
value = contextValue.ToString();
}
if (value is not string template || !TemplateTokenizer.CanContainNamedTokens(template))
{
PropertyValueFormatter.Format(writer, value, format, formatProvider);
return;
}
var tokens = TemplatesCache.ObtainTokens(template);
PaddingFormatHelper.TryParseFormat(format, out var insertLeadingSpace, out var insertTrailingSpace);
if (insertLeadingSpace)
{
writer.WriteSpace();
}
foreach (var token in tokens)
{
token.Render(@event, writer, formatProvider);
}
if (insertTrailingSpace)
{
writer.WriteSpace();
}
}
public void TryParseFormat_should_return_false_for_invalid_formats(string format)
{
PaddingFormatHelper.TryParseFormat(format, out _, out _).Should().BeFalse();
}