/// <summary>
/// Formats an int field, with zero padding and space padding if specified.
/// </summary>
/// <param name="formatWriter">The <see cref="FormatWriter" /> being written to.</param>
/// <param name="number">The number to format.</param>
/// <param name="colorCategory">The color category for the output.</param>
/// <param name="zeroPaddedWidth">
/// The minimum digit width to write. If <paramref name="number" /> has fewer digits the
/// output is left-padded with zeros.
/// </param>
/// <param name="spacePaddedWidth">
/// The minimum character width to write. If the written characters are less than this width, the output is right-padded
/// with spaces.
/// </param>
public static void WriteIntField(this FormatWriter formatWriter,
int number,
ColorCategory colorCategory = ColorCategory.Detail,
int zeroPaddedWidth = 0,
int spacePaddedWidth = 0)
{
Contract.Requires <ArgumentNullException>(formatWriter != null);
StringBuilder fieldBuffer = formatWriter.FieldBuffer;
fieldBuffer.Clear();
if (zeroPaddedWidth > 0)
{
fieldBuffer.AppendPadZeroes(number, zeroPaddedWidth);
}
int spacesPadding = spacePaddedWidth - fieldBuffer.Length;
if (spacesPadding > 0)
{
fieldBuffer.Append(' ', spacesPadding);
}
formatWriter.WriteField(fieldBuffer, colorCategory);
}
/// <summary>
/// Creates a new <see cref="TextLogWriter" />.
/// </summary>
/// <param name="setupTracerFactory">The <see cref="ITracerFactory" /> to use for logging setup operations.</param>
public TextLogWriter(ITracerFactory setupTracerFactory, FormatWriter formatWriter)
: base(setupTracerFactory)
{
Contract.Requires <ArgumentNullException>(setupTracerFactory != null);
Contract.Requires <ArgumentNullException>(formatWriter != null);
_formatWriter = formatWriter;
// Default to true
AutoFlush = true;
}
/// <summary>
/// Formats a time offset field
/// </summary>
/// <param name="timeOffset"></param>
/// <param name="colorCategory"></param>
public static void WriteTimeOffset(this FormatWriter formatWriter, TimeSpan timeOffset, ColorCategory colorCategory, int leftPaddedWidth = 9)
{
var buf = formatWriter.FieldBuffer;
buf.Clear();
// Handle negative timespans
if (timeOffset.Ticks < 0)
{
buf.Append('-');
timeOffset = timeOffset.Negate();
}
int hours = (int)Math.Floor(timeOffset.TotalHours);
if (hours > 0)
{
buf.Append(hours);
buf.Append(':');
}
int minutes = timeOffset.Minutes;
if (hours > 0)
{
buf.AppendPadZeroes(minutes, 2);
}
else
{
buf.Append(minutes);
}
buf.Append(':');
buf.AppendPadZeroes(timeOffset.Seconds, 2);
buf.Append('.');
buf.AppendPadZeroes(timeOffset.Milliseconds, 3);
int leftPadSpaces = leftPaddedWidth - buf.Length;
formatWriter.WriteSpaces(leftPadSpaces);
formatWriter.WriteField(buf, colorCategory);
}
public static void WriteAbbreviatedTypeName(this FormatWriter formatWriter, string typeName, ColorCategory colorCategory = ColorCategory.Detail, int padWidth = 0)
{
Contract.Requires <ArgumentNullException>(formatWriter != null);
Contract.Requires <ArgumentNullException>(typeName != null);
// Count the dots
int countDots = 0;
for (int i = typeName.IndexOf('.'); i >= 0; i = typeName.IndexOf('.', i + 1))
{
countDots++;
}
if (countDots == 0)
{
formatWriter.WriteField(typeName, colorCategory, padWidth);
return;
}
// Walk the string, abbreviating until just over half the segments are abbreviated
StringBuilder fieldBuffer = formatWriter.FieldBuffer;
int segmentsToAbbreviate = (countDots >> 1) + 1;
fieldBuffer.Clear();
int len = typeName.Length;
fieldBuffer.Append(typeName[0]); // Always include the first char
for (int i = 1, segmentsAbbreviated = 0; i < len; ++i)
{
char ch = typeName[i];
if (ch == '.')
{
fieldBuffer.Append(ch);
i++;
if (++segmentsAbbreviated >= segmentsToAbbreviate)
{ // No more abbreviating - take the rest straight
fieldBuffer.Append(typeName, i, len - i);
break;
}
else
{ // Keep abbreviating - always include the first char after a '.'
if (i < len)
{
fieldBuffer.Append(typeName[i]);
}
}
}
else if (!ch.AsciiIsLower())
{
fieldBuffer.Append(ch);
}
// Else ch is lower case - omit it
}
// Add padding if needed
int spacesPadding = padWidth - fieldBuffer.Length;
if (spacesPadding > 0)
{
fieldBuffer.Append(' ', spacesPadding);
}
formatWriter.WriteField(fieldBuffer, colorCategory);
}
/// <summary> /// Format <paramref name="entry" /> and write output to <paramref name="formatWriter" />. /// </summary> /// <param name="entry">A log entry to format.</param> /// <param name="formatWriter">The <see cref="FormatWriter" /> that receives formatted log output</param> public abstract void Format(ref TEntry entry, FormatWriter formatWriter);
public override void Format(ref TEntry entry, FormatWriter formatWriter)
{
_formatAction(entry, formatWriter);
}