public string Format(LogEntry logEntry)
{
if (FormatSpecification == null)
{
FormatSpecification = new FormatSpecification
{
Template = DefaultTemplate,
};
}
// TODO add real support for using the template
var sb = new StringBuilder();
sb.AppendFormat("[{0}][{1}][{2}] {3}",
logEntry.Timestamp.ToUniversalTime(),
logEntry.LogLevel,
logEntry.Category,
logEntry.Message);
return sb.ToString();
}
/// <summary>
/// Write the log entry to the output destination.
/// </summary>
/// <param name="message"> Must not be null or empty </param>
/// <param name="logLevel"> </param>
/// <param name="category"> </param>
/// <returns> </returns>
public virtual LogEntry Log(string message, LogLevel logLevel = LogLevel.Verbose, string category = null)
{
if (string.IsNullOrWhiteSpace(message))
{
throw new ArgumentNullException("message");
}
var logEntry = new LogEntry
{
Timestamp = DateTime.UtcNow,
Message = message,
LogLevel = logLevel,
Category = category,
};
if (LogAction != null && logLevel != LogLevel.None && logLevel >= LogLevel)
{
// if Formatter is null, generates a default formatted string
var output = logEntry.ToString(Formatter);
LogAction(output);
}
return logEntry;
}
